The enactment of Nigeria’s Tax Acts 2025 marks one of the most ambitious tax reform programmes in the country’s history. The reforms promise a simpler tax system, improved revenue administration, greater transparency and a more competitive investment climate.

Yet, however well drafted a tax reform may be, its ultimate success depends not only on the legislation itself but also on the certainty and fairness with which it is implemented.

The transition from the repealed tax laws to the new framework has recently generated important discussions among taxpayers, professional advisers and the Nigeria Revenue Service (NRS). The initial implementation notices issued by the NRS, the subsequent General Transition Guidelines for the Tax Acts 2025 issued by the Honourable Minister of Finance pursuant to Sections 144 of the Nigeria Tax Administration Act (NTAA) and 200 of the Nigeria Tax Act (NTA), and the Service’s later correspondences with taxpayers have collectively highlighted a fundamental issue:

Can new tax legislation govern income earned before the legislation came into force merely because the tax return falls due after commencement?

The answer to that question extends beyond statutory interpretation. It goes to the heart of legal certainty, the rule of law, taxpayer confidence and Nigeria’s attractiveness as an investment destination. It engages the National Tax Policy, long-established principles of Nigerian law, internationally recognised standards of tax administration and the broader objective of maintaining confidence in Nigeria’s tax system.

Tax Reform Begins with Tax Certainty

Nigeria’s National Tax Policy (2017) identifies certainty, fairness, equity, transparency, efficiency and simplicity as the cardinal principles upon which the country’s tax system should operate. These principles are neither aspirational nor incidental. They are intended to guide both tax legislation and tax administration.

Among them, certainty occupies a central position. Taxpayers should be able to determine, before undertaking a transaction, the tax consequences of their commercial decisions. Businesses make investment decisions, negotiate contracts, structure financing arrangements and allocate capital on the basis of the law existing at the time those decisions are made. If the applicable tax rules can subsequently change after the income has already been earned, certainty is replaced with unpredictability. The result is not merely administrative inconvenience but a weakening of one of the principal foundations of voluntary tax compliance.

The Organisation for Economic Co-operation and Development (OECD) has repeatedly emphasised that tax certainty is critical to economic growth, investment and effective tax administration. Investors are more willing to commit capital where tax rules are stable, predictable and consistently administered. Nigeria’s reform agenda seeks precisely these outcomes. Preserving tax certainty during the transition is therefore not inconsistent with reform; it is essential to its success.

The Right to Plan Commercial Affairs (Tax Planning)

Closely connected with certainty is the recognised ability of taxpayers to organise their affairs in accordance with existing law. This should not be confused with aggressive tax avoidance. Modern anti-avoidance rules appropriately prevent artificial arrangements designed solely to reduce tax.

However, every mature tax system recognises that taxpayers are entitled to know the legal consequences of legitimate commercial transactions before they enter into them. This principle has long been recognised in common law jurisdictions and continues to underpin modern tax administration. Businesses routinely evaluate the after-tax profitability of investments. Pricing decisions, financing structures, mergers, acquisitions and capital expenditure all involve consideration of the prevailing tax legislation.

Applying a subsequent tax regime to income already earned effectively deprives taxpayers of the ability to plan their affairs using the law that existed when those decisions were made. In practical terms, tax planning becomes impossible if the governing rules remain uncertain until after the accounting period has ended.

The Minister’s Transition Guidelines

Recognising the complexity of implementing the new legislation, the Honourable Minister of Finance issued the General Transition Guidelines for the Tax Acts 2025 on 18 June 2026 pursuant to his statutory powers under Section 144 of the NTAA and Section 200 of the NTA.

The legal foundation of the Guidelines is important. Section 144 of NTAA authorises the Minister to issue directives of a general nature or relating generally to matters of policy concerning the exercise of functions under the Act, while requiring the relevant tax authority to comply with those directives. The Guidelines therefore form part of the statutory implementation framework established by the new tax legislation.

Their objectives include ensuring consistency, preventing retrospective application, resolving ambiguities and providing operational clarity during the transition. Most significantly, paragraph 10.1.2(1) provides that Companies Income Tax relating to any basis period ending before 1 January 2026 shall continue to be taxed under the repealed Companies Income Tax Act notwithstanding that filing and payment obligations arise after commencement of the new Acts.

The Guidelines therefore affirm a fundamental principle of tax law: unless Parliament expressly provides otherwise, the substantive law governing tax liability is the law in force when the relevant income was earned. This conclusion is not displaced merely because the Companies Income Tax Act was repealed. The repeal provision in Section 195(c) of the Nigeria Tax Act must be read together with the transitional framework established by the new legislation and the Minister’s Guidelines issued pursuant to it.

In tax law, the repeal of an enactment does not, without more, alter liabilities that accrued while it was in force. Rather, it marks the point from which the new regime applies, subject to any transitional or saving provisions enacted to preserve pre-commencement rights and obligations.

Procedure Is Not the Same as Liability

Subsequent correspondences from the NRS has emphasised that Companies Income Tax returns falling due after commencement of the NTAA are subject to the procedural filing framework established under the new legislation. There is little difficulty with that proposition. Procedural legislation frequently applies immediately upon commencement.

The more important legal question concerns the substantive law governing the computation of tax liability. These are distinct concepts. A return may legitimately be filed under the procedural framework established by the NTAA while the tax itself continues to be computed under the repealed Companies Income Tax Act if the relevant basis period ended before commencement.

Indeed, this is precisely the distinction recognised by the Minister’s Guidelines.

Much of the present debate therefore concerns not whether taxpayers should comply with the new filing procedures, but whether the electronic filing systems accurately reflect the substantive law intended to govern pre-commencement accounting periods.

Nigerian Law Favours Prospective Taxation

The Minister’s approach is consistent with long-established principles of Nigerian law. The Supreme Court has repeatedly affirmed that legislation is presumed to operate prospectively unless the legislature clearly provides otherwise. This principle was reaffirmed in Uwaifo v. Attorney-General, Bendel State and Attorney-General of the Federation v. Abubakar, where the Court cautioned against retrospective interpretations that alter substantive rights and liabilities without express legislative authority.

The same principle has been applied in tax matters. In Accugas Limited v. Federal Inland Revenue Service, the Tax Appeal Tribunal, subsequently affirmed by the Federal High Court, rejected the proposition that amendments introduced by the Finance Act could apply to profits earned before the amendments came into force merely because the assessment occurred afterwards.

The Tribunal emphasised that, for companies assessed on the preceding-year basis, the governing law is the law applicable during the accounting period in which the income was earned, not the law in force when the assessment is issued. That reasoning reflects a broader principle of statutory interpretation recognised across common law jurisdictions – that substantive tax legislation is presumed to operate prospectively unless the legislature clearly provides otherwise.

International Experience Supports the Same Approach

Nigeria is not alone in undertaking significant tax reform. The United Kingdom, Canada, South Africa and Australia have all implemented extensive reforms to their tax systems over the past two decades. A common feature of these reforms is the careful use of commencement dates and transitional provisions.

In the United Kingdom, major reforms (including the Corporate Interest Restriction rules, Hybrid Mismatch rules and the implementation of the OECD Pillar Two framework) apply prospectively, typically to accounting periods beginning on or after a specified commencement date.  Canada follows a similar approach, with amendments generally applying to taxation years beginning after a specified date or to transactions occurring after commencement.  South Africa likewise employs prospective commencement provisions supported by detailed transitional rules and grandfathering arrangements.

Australia provides an interesting exception. Parliament has occasionally enacted tax legislation with retrospective effect. However, this has generally been confined to exceptional circumstances such as countering tax avoidance, correcting legislative anomalies or protecting the revenue following formal government announcements. Even then, retrospective operation is expressly authorised by legislation and is accompanied by clear policy justification.

None of these jurisdictions routinely subjects ordinary business income earned under one statutory regime to substantive tax rules enacted only after that income has already accrued.

The international norm remains prospective application, with retrospective taxation reserved for exceptional cases expressly authorised by Parliament. This reflects a shared recognition that certainty in tax law is essential to voluntary compliance, commercial planning and investor confidence.

Tax Reform and the Rule of Law

The broader issue is one of legal certainty and the rule of law. Taxation is unique because it involves compulsory exactions imposed by the State. For that reason, courts around the world have traditionally insisted that tax liability must arise clearly from legislation rather than administrative convenience. The rule of law requires that legal consequences should ordinarily be ascertainable before conduct occurs.

The principle also aligns with one of the oldest canons of taxation. Adam Smith observed that the tax which each person is bound to pay ought to be certain and not arbitrary. Modern tax systems continue to embrace this principle because predictability enables taxpayers to organise their affairs with confidence and encourages voluntary compliance.

Retrospective taxation weakens that principle because it asks taxpayers to evaluate yesterday’s commercial decisions using today’s legislation. That uncertainty ultimately affects more than tax compliance. It influences investment decisions, financing costs, contractual negotiations and perceptions of regulatory stability. For an economy actively seeking domestic and foreign investment, these considerations are particularly significant.

The Way Forward

The transition to Nigeria’s new tax system should be viewed as an opportunity rather than a controversy. The enactment of the new Tax Acts, the issuance of the Minister’s Transition Guidelines and the constructive engagement between taxpayers and the NRS demonstrate a shared commitment to ensuring that the reforms succeed.

The remaining task is to ensure complete alignment between legislation, policy directives, administrative practice and the digital platforms through which taxpayers comply with their obligations. Doing so will reduce disputes, improve voluntary compliance and reinforce confidence in the reform programme.

Particular attention should, however, be given to taxpayers who completed their 30 June 2026 filings before the Minister’s Transition Guidelines were issued, as well as those whose returns were filed under the new Tax Acts because the NRS electronic filing platform provided no practical alternative. For many such taxpayers, the right of election preserved under paragraph 10.1.2(4) of the Guidelines existed in principle but not in practice, as the electronic filing system provided no meaningful opportunity to choose. An election can only be regarded as valid where taxpayers are afforded a genuine opportunity to make an informed choice.

To reinforce confidence in the reform process, the NRS should therefore introduce a time-bound administrative regularisation process, allowing affected taxpayers to amend their returns or otherwise regularise their filings, without adverse consequences, where they can demonstrate that they filed under the new Tax Acts solely because the electronic filing platform provided no practical alternative. Such a measure would reaffirm the Service’s commitment to implementing both the legislation and the Minister’s Guidelines faithfully, while demonstrating that administrative systems exist to give effect to the law rather than inadvertently determine substantive tax liabilities.

Conclusion

Nigeria’s tax reforms represent a significant milestone in modernising the country’s fiscal framework. However, successful reform is measured not only by the enactment of new legislation but by the confidence taxpayers have in its implementation.

The National Tax Policy, Nigerian judicial authorities and international practice all point towards the same conclusion: major tax reforms should be implemented in a manner that preserves legal certainty, respects legitimate expectations and avoids retrospective application unless Parliament has expressly directed otherwise.

These principles are not obstacles to effective tax administration. They are the very foundations upon which effective tax administration is built. As Nigeria continues to implement the new Tax Acts, maintaining certainty, fairness and transparency will not merely reduce compliance challenges during the transition. It will strengthen voluntary compliance, enhance investor confidence and help ensure that one of the country’s most significant tax reforms achieves its full economic potential.

Mandatory e-invoicing through the Nigeria Revenue Service (NRS) Merchant Buyer Solution (MBS) platform is the most consequential structural reform of Nigeria’s tax administration since VAT was introduced in 1993. Yet most commentary has stayed on the logistics: connecting systems, meeting deadlines, avoiding penalties.

This article is addressed to finance directors, chief financial officers, tax leaders, and the boards and audit committees they serve. Its purpose is to examine what the mandate actually does to your tax positions, beyond the obligation to transmit invoices through an accredited intermediary.

The central argument is this: the MBS framework does not merely change how invoices are reported. It changes the evidential basis on which VAT positions are established, the conditions under which input VAT recovery survives, and the risk profile of positions that were previously invisible to the NRS and will not be for much longer.

Nigeria is not designing this framework in a vacuum. Kenya’s e-TIM rollout is a cautionary tale: two years in, fragmented adoption still leaves compliant businesses exposed when transacting with non-compliant counterparties. Regulators without early feedback from businesses tend to harden rules that slow adoption rather than help it. Nigerian businesses should start engaging the NRS now, before that happens here.

Companies that treat e-invoicing as a mere technology project are missing the more important conversation. The tax consequences of this framework will define the Nigerian audit landscape for the next decade.

The Legal and Regulatory Foundation

The e-invoicing obligation is grounded in two statutes. The Nigeria Tax Act 2025 (NTA 2025) consolidates the Value Added Tax Act, Companies Income Tax Act, Personal Income Tax Act and related legislation into a single fiscal code. The Nigeria Tax Administration Act 2025 (NTAA 2025) provides the administrative machinery, including the power to mandate e-invoicing and impose penalties for non-compliance. The NRS has operationalised the mandate through the MBS platform, a national clearinghouse for electronic invoice validation built on the Pan-European Public Procurement OnLine (PEPPOL) framework adapted for Nigerian requirements.

The MBS runs a pre-clearance model: invoices must be validated by the NRS before they acquire legal status for tax purposes. An invoice not transmitted through an accredited Access Point Provider (APP) and validated by the NRS is not, for tax purposes, a legally recognised invoice, regardless of whether it accurately reflects a genuine commercial transaction. A document’s tax status now turns on its transmission history, not just its content.

This is not untested ground. Italy’s Sistema di Interscambio (SDI), the world’s first mandatory universal B2B e-invoicing clearance system, operates on the same principle: an invoice that does not pass through the SDI does not exist for VAT purposes under Italian law. The early Italian rollout produced a wave of input VAT disputes because buyers had accepted invoices that suppliers failed to transmit correctly. The Italian Revenue Agency (Agenzia delle Entrate) drew a hard line: no valid SDI record, no invoice. Nigerian companies should treat that as a direct precedent.

The Phased Rollout and Enforcement Framework

The NTA and NTAA impose the e-invoicing obligation on all VAT-registered businesses without exception. The phased rollout is not a statutory exemption for smaller taxpayers; it is just an administrative sequencing decision. Enforcement is already live for Phase 1 businesses (above ₦5 billion) since April 2026, begins for Phase 2 (₦1 billion to ₦5 billion) in January 2027, and for Phase 3 (below ₦1 billion) in January 2028. Every VAT-registered business should treat E-invoicing compliance as a current obligation regardless of where it sits in that sequence.

The penalty framework includes: an administrative fine of ₦200,000 per breach; a daily accrual of ₦10,000 per day of continued non-compliance; a tax surcharge of 100% of the tax attributable to unreported transactions.

Companies Income Tax Implications -The Overlooked Expense Side

Most companies preparing for e-invoicing compliance focus entirely on their income side: issuing valid, MBS-validated invoices for their own sales. Few are asking the harder question on the expense side. Where a vendor’s invoice carries no IRN, the documentary foundation for that expense is weaker, and the NRS holds a real-time record showing the invoice was never validated. Deductibility for income tax purposes depends on an expense being properly documented and wholly, reasonably, exclusively, and necessarily incurred for the business. An unvalidated invoice gives the NRS a ready basis to challenge that deduction during a tax audit. It is important that you review your vendors’ compliance status with the same urgency you apply to your own outward invoicing.

VAT Implications – Input VAT Recovery

Under the MBS pre-clearance model, only invoices carrying a valid Invoice Reference Number (IRN), issued by the NRS on successful validation, qualify for input VAT recovery. An invoice without an IRN is not an invoice for VAT purposes. It is a commercial document with no tax standing.

• For Phase 1 and Phase 2 businesses purchasing from non-compliant suppliers

If you purchase from a supplier that has not implemented MBS compliance, the invoices you receive carry no IRN and cannot support an input VAT recovery claim. That VAT is stranded. For Phase 1 businesses this exposure has been live since April 2026. The position is more acute lower down the turnover scale: a business with ₦700 million in revenue is legally obligated to use the MBS today; the NRS has simply not activated enforcement yet. But its suppliers face the same obligation, and if they are not transmitting MBS-validated invoices, the purchasing business receives documents with no IRN. On ₦400 million in VAT-inclusive purchases, that is ₦52 million in stranded, unrecoverable VAT materialising now, driven by an enforcement gap, not any statutory exemption.

• VAT Reconstruction and the Audit Exposure

The MBS gives the NRS a complete real-time record of every validated transaction, automatically comparable against filed VAT returns. Any discrepancy is detectable without a field audit. Every VAT position you hold is now visible to the NRS in real time. Positions that survived only because scrutiny was unlikely must be reassessed now that scrutiny is automatic and perpetual.

• Output VAT: Revenue Recognition and Reporting

The pre-clearance model also raises an output VAT question worth managing. Under IFRS 15, revenue is recognised when control transfers to the customer. The MBS validation timestamp is a new data point that may fall before or after that control transfer. Companies should assess the relationship between the validation timing and their revenue recognition policy. The NRS has not yet issued definitive guidance on systematic timing differences, so a conservative accounting policy or proactive engagement with the NRS is advisable in the interim.

Transfer Pricing and International Tax Implications

For groups with related-party transactions, the MBS adds a new layer to transfer pricing documentation. The Income Tax (Transfer Pricing) Regulations 2018 already require arm’s length pricing and contemporaneous documentation. The MBS adds a further test: the invoices recording those transactions must carry valid IRNs. Where intragroup dealings involve foreign entities, for example a Nigerian subsidiary receiving management services from a foreign parent, the foreign entity may not be an NRS-registered taxpayer, may lack access to a Nigerian-accredited APP, and may be unable to obtain an IRN. You should assess the MBS compliance status of your intragroup invoicing arrangements now. Intragroup charges without MBS validation face the same input VAT recovery risk as third-party transactions. In a transfer pricing audit, absent MBS validation can become additional evidence of non-arm’s length conduct.

Resolving Tax Disputes in an MBS Environment

The MBS does not only change what the NRS can see; it changes who has to prove what, and with which records, once a dispute begins.

• The NRS’s Enhanced Audit Capability

The MBS gives the NRS a real-time, government-maintained transaction database against which it can automatically compare every filed VAT return, flag discrepancies, and generate audit triggers without any field visit. Mexico’s CFDI system, in operation since 2011, shows where this leads: audit selection there is now largely algorithmic, with discrepancies between invoice data and filed returns triggering automatic review. The NRS is building toward the same capability, and the pace of that build should not be underestimated.

• Burden of Proof in Tax Disputes

Under Nigerian tax law, the burden of proving that an assessment is excessive lies with the taxpayer. Previously, you discharged that burden mainly through internal documents the NRS could not independently verify. Now the NRS holds its own record of your transactions. Where your internal records diverge from the NRS’s MBS data, you carry the additional burden of explaining the gap. Preparing for any NRS audit must begin with a reconciliation of your records against the MBS dataset. Unexplained discrepancies, in either direction, need managing before the audit opens.

• Tax Objections and Appeals

If you are in active tax objection or appeal proceedings, MBS records may be directly relevant to the facts in dispute. Where the disputed transactions fall after the relevant phase go-live date, those records may be admissible before the Tax Appeal Tribunal. Review the NRS’s MBS records for your transactions before the opposing party does, and factor them into your dispute strategy accordingly.

The Strategic Tax Planning Implications

The MBS does not just create compliance obligations; it closes off an entire category of tax planning that depended on the NRS not seeing the full picture.

• The End of Opacity

For decades, the opacity of commercial transactions to the NRS created a risk-reward calculus in which certain aggressive tax positions were routinely taken because detection was unlikely. The MBS dismantles that opacity, transaction by transaction. Every position your business holds that depended on a low probability of NRS scrutiny must now be reassessed.

• Substance Over Form in an MBS Environment

Pre-clearance creates specific risk for arrangements built mainly for tax purposes but lacking commercial substance. Where your MBS records show patterns that suggest a tax-motivated structure, systematic transaction splitting to stay below a threshold, or activity routed through intermediaries without clear commercial rationale, the NRS now has the data to identify and challenge them on substance-over-form grounds. Transfer pricing regulations already give the NRS that authority; the MBS dataset gives it the empirical base to use it.

Conclusion: A Call to Professional Engagement

The NRS e-invoicing mandate is not a compliance event. It is a structural change to the environment in which your business operates. The following actions are immediate priorities.

Audit your counterparty compliance status now and reassess your input VAT recovery position accordingly. Review your transfer pricing documentation for MBS compliance, particularly for intragroup transactions involving foreign entities. Where your company is in active tax dispute, it would now be crucial to conduct a review of your records to ascertain alignment with the NRS MBS records. Engage the NRS proactively where the framework creates uncertainty. It is important to now also reassess any tax position that depended on the low probability of NRS detection. That probability is gone under this new framework.

The era of managing tax risk through the low probability of detection is over. The era of managing it through genuine substance, robust documentation, and proactive engagement with the NRS is here now. The question is not whether your business will adapt to this new environment. It is whether you will adapt before the NRS comes to you.

About the Author

Victor Athe, FCA, is the Tax Partner of Stransact Chartered Accountants, a leading professional services firm in Lagos, Nigeria and a correspondent firm of RSM International. He has over 18 years of experience in corporate, personal and cross-border taxation, having begun his career at KPMG’s Tax, Regulatory and Peoples Services practice. He advises local and multinational companies across FMCG, Oil and Gas, IT, Aviation and Financial Services on VAT, WHT, transfer pricing and tax business strategy.

For professional tax enquiries: [email protected]

Note to editors: This article has been prepared for publication as a professional opinion piece. The author is available for interview.

Nigeria’s tax reform process has taken a decisive step forward with the issuance of the “General Transition Guidelines” for the Nigeria Tax Act 2025 (NTA), the Nigeria Tax Administration Act 2025 (NTAA), Nigeria Revenue Service (Establishment) Act 2025 and the Joint Revenue Board (Establishment) Act 2025 (collectively referred to as “the Acts). The guidelines were issued pursuant to the powers of the Minister of Finance under section 200 of the NTA and section 144 of the NTAA.

These guidelines are more than administrative instructions. They provide the legal bridge between the repealed tax laws and the new fiscal regime, and they respond directly to concerns that emerged from earlier Nigeria Revenue Service (NRS) communications regarding the application of the new laws to returns due in the 2026 Year of Assessment.

At the centre of the earlier debate was a simple but fundamental question: can a tax law apply to income earned before it came into force?

The new guidelines now provide a comprehensive answer.

The Earlier Concern: Assessment Year vs Income Year

The controversy arose from the structure of Nigeria’s income tax system, particularly for non-upstream companies operating under a preceding-year basis of assessment. Under this system, the 2026 Year of Assessment largely reflects income earned in 2025, before the new tax laws commenced.

An earlier NRS administrative notice had suggested that returns due in 2026 would be assessed under the new regime. This created uncertainty as to whether 2025 income could be computed under laws that were not yet in force at the time the income arose.

This raised concerns around retroactive taxation, a principle that is generally disfavoured unless expressly authorised by law. Nigerian courts, including in Accugas Ltd v. FIRS, have consistently held that tax liability is determined by the law in force when income is earned, not when it is assessed.

The Core Resolution: Prospectivity and Basis Period Control

The new Guidelines resolve this ambiguity in clear terms. They establish that the tax Acts apply prospectively from 1 January 2026, except where expressly stated otherwise. More importantly, they provide that no tax obligation, penalty, surcharge, or administrative requirement under the new regime shall apply to any period before commencement.

They further clarify that income tax is determined by the basis period, not the filing date or year of assessment. As a result, income earned before 1 January 2026 remains subject to the repealed laws, even if assessment and filing occur in 2026.

This removes the earlier uncertainty and aligns the transition framework with established judicial authority.

Other Issues

Some other crucial issues covered in the Guidelines include:

• Transaction Taxes

The Guidelines adopt a consistent approach for transactional taxes such as VAT, withholding tax, and stamp duties. These taxes are governed strictly by the timing of the transaction itself. Anything done before 1 January 2026 remains under the old laws, while transactions from that date onward fall under the new regime.

Where contracts span both regimes, the Guidelines adopt a pragmatic approach by apportioning tax treatment based on performance timing. This ensures that each part of a transaction is taxed under the law in force at the relevant time.

• Preservation of Existing Rights and Incentives

A key feature of the Guidelines is the protection of existing tax incentives and exemptions granted under the repealed laws. These remain valid until their natural expiration, ensuring that taxpayers do not lose vested rights as a result of the reform.

At the same time, new applications for incentives will now be assessed under the new legal framework. This preserves continuity while ensuring forward-looking consistency.

• Dispute Resolution and Administrative Transition

The Guidelines also provide clarity on pending disputes. Matters already filed before the commencement date will continue under the old legal framework, while new disputes will follow the procedures introduced under the new Acts.

This dual-track approach ensures that ongoing litigation is not disrupted while allowing the system to transition smoothly to the new procedural regime.

• Administrative Safeguards Against Retroactive Taxation

One of the most important features of the Guidelines is their explicit prohibition of retroactive application. They require tax authorities to implement internal safeguards to ensure that assessments and enforcement actions do not extend to pre-commencement periods. This is significant because it moves the principle of non-retroactivity from judicial interpretation into administrative design and enforcement systems.

The Guidelines also introduce a structured interpretive approach in cases of conflict. Where ambiguity arises, interpretation must reflect legislative intent, administrative practicality, and in some cases, favour the taxpayer. This reflects a more balanced and predictable interpretive framework than previously seen in transitional tax administration.

• Institutional Harmonisation Across Tax Authorities

The Guidelines apply across all levels of tax administration, including federal, state, and local revenue authorities. This is particularly important in Nigeria’s federal structure, where inconsistent tax interpretation has historically created uncertainty for taxpayers.

By requiring harmonisation, the Guidelines aim to ensure that the transition to the new tax regime is implemented uniformly across jurisdictions.

• Tax Reform and Economic Certainty

Beyond legal technicalities, the Guidelines reflect a broader policy objective: improving economic certainty during a major fiscal transition. Tax systems depend not only on rates and rules but also on predictability. Uncertainty in tax application can distort investment decisions, increase compliance costs, and undermine trust in the system.

By clearly defining temporal boundaries and protecting vested rights, the Guidelines aim to support a stable investment environment while implementing structural tax reform.

Conclusion

Nigeria’s new tax laws represent one of the most ambitious fiscal reforms in recent history. However, their success depends not only on legislative drafting but also on clarity of implementation. The General Transition Guidelines provide that clarity. They establish prospectivity as the governing principle, eliminate retroactive application, protect existing rights, and harmonise interpretation across tax authorities.

Most importantly, they reinforce a foundational principle of tax governance: certainty is not an administrative convenience; it is a legal requirement for compliance, investment confidence, and the effective functioning of the tax system.

The earlier concerns about retroactivity have now given way to a more structured and legally coherent transition framework. If consistently implemented, these Guidelines will form a critical pillar in the success of Nigeria’s tax reform agenda.

Nigeria has entered a decisive new phase in tax administration. The Nigeria Revenue Service NRS has issued a public notice outlining the phased implementation of its E-Invoicing and Electronic Fiscal System (EFS), with the programme already underway for large taxpayers and scheduled to expand to medium and emerging taxpayers over the coming years.

Also known as the Merchant Buyer Solution (MBS), the initiative fundamentally changes how businesses generate, transmit, authenticate, and store invoice data. With large taxpayers already onboarded and enforcement timelines now clearly mapped out, Nigerian enterprises must begin preparing for a fully digital fiscal environment

A New Era of Digital Tax Compliance

Electronic invoicing replaces paper-based billing with structured digital exchange of invoices, credit notes, and debit notes between buyers and sellers through integrated systems. By digitizing invoicing and enabling secure transmission through accredited platforms, the reform is expected to reduce tax leakages and underreporting, improve audit efficiency and revenue assurance, strengthen transparency across supply chains and simplify compliance through automation and interoperability.

For businesses, this marks a clear shift toward technology driven compliance, where invoicing, reconciliation, reporting, and authentication become part of a unified digital workflow.

How Nigeria’s E Invoicing Rollout Evolved

Nigeria’s move toward electronic fiscalisation has unfolded gradually as part of a broader digital tax transformation agenda:

• 2021- Authorities signaled plans to connect automated tax systems to taxpayers’ electronic records, laying early groundwork for digital monitoring.
• 2024- Mandatory e invoicing policy direction emerged through the Merchant Buyer Solution framework.
• January 2025- Pilot deployment began with selected large taxpayers to validate integrations and data transmission.
• August 2025- Official go live for large taxpayers marked the transition from preparation to live fiscal reporting.
• 2026 to 2028- Phased nationwide expansion covering go-live and enforcement for medium (2027) and emerging (2028) taxpayers.

This consultation pilot, which aims to stabilise and enforce pathways, reflects international best practices for national fiscalisation programs.

Read more: Navigating the Future of Tax Compliance: FIRS to Roll Out E-Invoicing in Nigeria

The Legality: What Gives NRS the Authority

A major question business often ask is what makes this mandatory.

According to the NRS public notice on the EFS rollout, the programme is anchored in Nigeria’s tax administration legal framework. Section 23 of the Nigeria Tax Administration Act (NTAA) empowers the Service to deploy technology for efficient tax administration and collection, while Section 158 of the Nigeria Tax Act (NTA) mandates taxpayers to implement the fiscalisation system deployed by the Service.

Taken together, these provisions establish the basis for NRS to introduce and enforce a digital fiscal regime across taxpayer categories, particularly where compliance depends on structured invoice data and electronic reporting.

Separately, Nigeria’s technical and ecosystem governance is supported by the National Regulatory Guideline for Electronic Invoicing in Nigeria 2025 issued by NITDA, which

• Applies to regulators, accredited service providers, and all entities generating or processing electronic invoices.
• Defines the operational roles of Access Point Providers and System Integrators.
• Establishes compliance, licensing, monitoring, and enforcement structures within the e-invoicing ecosystem.

These elements collectively confirm that E Invoicing under EFS is a statutory compliance requirement and not optional modernization.

Phased Rollout Timeline

To ensure operational readiness, NRS is implementing EFS in structured phases aligned with turnover thresholds.

Large Taxpayers Above ₦5 Billion

• Go live: August 2025.
• Post goes live review: January to March 2026.
• Compliance enforcement: April to June 2026.

Large enterprises are already transmitting invoice data and setting the pace for national adoption.

Medium Taxpayers ₦1 Billion to ₦5 Billion

• Stakeholder engagement: January to March 2026.
• Pilot rollout: April to June 2026.
• Go live: 1 July 2026.
• Compliance enforcement: January to March 2027.

Preparation timelines for this segment are now time critical.

Emerging Taxpayers Below ₦1 Billion

• Stakeholder engagement: January to March 2027.
• Pilot rollout: April to June 2027.
• Go live: 1 July 2027.
• Compliance enforcement: January to March 2028.

Although timelines are longer, early readiness significantly reduces disruption risk.

What This Means for Businesses

The nationwide mandate represents more than regulation. It is a structural digital transformation of commercial operations. Businesses must prepare to generate invoices in standardised compliant digital formats, transmit data securely via accredited e invoicing access platforms, maintain audit-ready electronic transaction records, and meet ongoing monitoring, reporting, and compliance obligations.

Failure to prepare before enforcement windows may expose organisations to penalties, service disruption, or regulatory action, while early readiness enables faster reporting, reduced errors, improved visibility, and stronger credibility.

The Critical Role of Technology Integration

Compliance is now deeply technology dependent; successful adoption relies on qualified system integrators and secure digital infrastructure operating within Nigeria’s regulated E-invoicing framework.

To support businesses through this transition, Stransact’s technology arm, Doftwerks, has been approved to assist organisations with integration, compliance-ready invoicing workflows, and secure connectivity to the national e invoicing ecosystem.

Through Doftwerks, businesses can:

• Integrate ERP, POS, and accounting systems with compliant e invoicing infrastructure.
• Implement secure authentication, transmission, and audit trail capabilities.
• Accelerate readiness ahead of enforcement timelines.
• Minimise operational disruption during migration to electronic fiscal reporting.

This capability complements Stransact’s broader mission of enabling seamless, compliant, and future-ready financial operations for Nigerian enterprises.

Read more: FIRS E-Invoice Service

Preparing for the Future Now

One conclusion is unavoidable: Electronic invoicing is becoming the default framework for doing business in Nigeria. Organisations that digitise workflows, align with compliant infrastructure, and begin integration early will transition confidently. Those that delay risk last minute disruption as enforcement deadlines approach.

Conclusion

Nigeria’s E-Invoicing rollout marks a decisive step toward a transparent, efficient, and digitally governed tax system. Backed by statutory authority, national technical standards, and phased enforcement, the reform signals a permanent shift in how businesses document and report transactions.

For forward thinking organisations, this is more than compliance. It is an opportunity to modernise finance operations, strengthen governance, and compete in a digital economy.

Through Stransact and its approved technology arm, Doftwerks, Nigerian businesses can navigate this transition with confidence, securely, compliantly, and efficiently.

Introduction: Reform Raises Old Legal Questions

The Nigeria Revenue Service (NRS) has issued formal notices to taxpayers announcing the commencement of the Nigeria Tax Act, 2025 (NTA) and the Nigeria Tax Administration Act, 2025 (NTAA), with effect from 1 January 2026. The notice, intended to provide “clarifications for ease of compliance and transition”, instead raises fundamental legal questions about the temporal application of tax laws, the scope of administrative authority, and the continued relevance of settled judicial principles.

At the heart of the controversy is whether the NRS can, through administrative guidance, apply a new tax regime to income and transactions that arose before the commencement of the legislation.

Year of Assessment Versus Year of Income

The notice states unequivocally that “income tax returns due for filing in the 2026 Year of Assessment shall be prepared, filed, and assessed in accordance with the provisions of the NTA and NTAA.” On its face, this appears administratively tidy. In law, however, it is far from straightforward.

For upstream petroleum companies, the year of assessment coincides with the year of income (i.e. actual year basis of assessment). For all other companies, Nigeria operates a preceding-year basis of assessment. Consequently, income reported in the 2026 Year of Assessment for non-upstream companies relates to profits earned in the 2025 financial year, at a time when the NTA and NTAA were not in force.

Requiring taxpayers to compute 2025 income under a legal regime that only commenced on 1 January 2026 amounts, in substance, to retroactive taxation.

The Presumption Against Retroactivity in Tax Law

Nigerian courts have long held that statutes are presumed to operate prospectively unless the legislature clearly provides otherwise. This presumption is particularly strong in tax law, where statutes impose compulsory financial burdens. In Uwaifo v. Attorney-General, Bendel State and Attorney-General of the Federation v. Abubakar, the Supreme Court cautioned against interpretations that retrospectively alter substantive rights or liabilities.

Nothing in the NTA or NTAA expressly authorizes the retrospective application of income tax provisions to profits earned before their commencement. In the absence of such language, administrative notices cannot lawfully supply what the legislature has withheld.

The Accugas Case: A Direct Judicial Answer

This issue is not novel. In Accugas Limited v. Federal Inland Revenue Service, the Tax Appeal Tribunal was confronted with an argument strikingly similar to the one now implicit in the NRS notice. The tax authority contended that because an amended tax law (Finance Act, 2019) was in force in the relevant Year of Assessment, it should apply to income earned in an earlier accounting period.

The Tribunal rejected that argument in clear terms. It held that for companies assessed on a preceding-year basis, tax liability is governed by the law in force during the year the income was earned, not the year in which the assessment is made. The Year of Assessment, the Tribunal explained, is an administrative construct; it cannot be used as a legal mechanism to impose new tax rules on prior-year income.

On appeal, the Federal High Court affirmed this reasoning, giving it binding judicial weight. The lesson from the Accugas case is unmistakable: the timing of assessment cannot override the timing of income.

Against this backdrop, the directive that 2026 YOA returns must be assessed under the NTA and NTAA “irrespective of the actual filing date” sits on legally fragile ground for non-upstream taxpayers.

Read more: The Limits of Regulatory Authority and the Imperative of Legislative Clarity

Transactional Taxes: A Selective Temporal Approach

The NRS notice adopts a different approach for transactional taxes. It states that the provisions of the NTA and NTAA shall apply to VAT, Stamp Duties and Withholding Tax “in respect of transactions occurring on or after 1 January 2026”. This is orthodox and uncontroversial. Transactional taxes attach to discrete events, and the applicable law is the law in force at the time the transaction occurs.

The notice further preserves the validity of all VAT actions lawfully undertaken before 31 December 2025, including filings, assessments, payments and credits. This saving provision implicitly recognizes that the new law cannot disturb completed transactions.

The difficulty arises when this logic is not consistently applied across the tax system.

Capital Gains: An Important but Telling Concession

The notice expressly provides that chargeable gains arising from disposals between 1 January 2025 and 31 December 2025 “shall be assessed and filed in accordance with the provisions of the repealed Capital Gains Tax Act”. Only disposals occurring on or after 1 January 2026 are brought under the new regime.

This concession is significant. It acknowledges that capital gains crystallize at the point of disposal and must be governed by the law in force at that time. It also acknowledges, implicitly, that applying the new law to 2025 disposals would be impermissibly retrospective.

Yet this creates an immediate tension with the broader directive on income tax for the 2026 Year of Assessment.

Read more: One Law, Two Scripts: Navigating the Material Discrepancies in the Nigeria Tax Act 2025 – Eben Joels

Capital Gains as Income: A Structural Conflict

One of the most far-reaching reforms introduced by the NTA is the integration of capital gains into income tax computations. Under the new regime, chargeable gains from 1 January 2026 form part of total profits for income tax purposes. This reform makes the NRS’s transitional position even more delicate.

The notice states that “income tax returns due for filing in the 2026 Year of Assessment shall be prepared, filed, and assessed in accordance with the provisions of the NTA and NTAA”. For non-upstream companies, the 2026 YOA relates to 2025 income. This would, in effect, require taxpayers to apply the new law to 2025 profits (except for capital gains, which are preserved under the old law).

The result is a selective temporal application: one part of a company’s income (capital gains) is governed by the old statute, while the rest (ordinary profits, other transaction taxes) falls under the new law, all within the same assessment year. Nigerian courts, including in Accugas Ltd v. FIRS, have consistently rejected such selective retroactive application, holding that tax liability is determined by the law in force at the time income is earned, not by the year of assessment.

In short, the NRS notice recognizes the impossibility of retroactively reclassifying capital gains yet attempts to do so implicitly for all other income in the same period, creating a legal and administrative contradiction that cannot be ignored. Tax law does not support such selective temporal logic. A single transaction carried out in 2025 cannot, as a matter of principle, be partly governed by repealed legislation and partly by new legislation absent explicit statutory direction.

The Limits of Administrative Guidance

Courts have consistently held that administrative circulars and notices cannot impose tax obligations beyond what the statute authorizes. In Attorney-General of the Federation v. Nigeria LNG Limited and FBIR v. Halliburton (WA) Ltd, the courts emphasized that tax liability arises strictly by operation of law, not by administrative convenience.

The NRS notice, however well-intentioned, cannot override the statutory presumption against retroactivity or displace binding judicial authority, including the Accugas decision”.

A Safer Path Forward

A legally coherent transition would be to apply the NTA and NTAA prospectively to income and gains arising from financial years beginning on or after 1 January 2026. For non-upstream companies, this would mean that the 2026 Year of Assessment, which relates to 2025 income, remains governed by the repealed laws, with the new regime fully taking effect from the 2027 Year of Assessment. Such an approach would align administrative practice with judicial precedent, preserve taxpayer certainty, and protect the credibility of Nigeria’s ambitious tax reform agenda.

A tax system that commands respect and compliance is one that is predictable, transparent and anchored in the rule of law. Nigeria’s tax reform agenda will be best served by ensuring that these principles are not sacrificed in the rush to implementation.

Nigeria’s fiscal landscape has officially shifted with the commencement of the Nigeria Tax Act, 2025 on January 1, 2026. However, a quiet storm is brewing in the boardrooms of tax consultants and corporate legal departments. Two versions of the same Act are currently in circulation: one released previously by the Federal Inland Revenue Service (FIRS) as the gazette tax laws, bearing a reference number “FGP 29/72025/5OO” and the “Final Approved Copy”; the version bearing the weight of the law, signed by both the Clerk of the National Assembly and President Bola Ahmed Tinubu, which was recently made public by the National Assembly. Incidentally, both copies claim to be published by the official gazette of the Federal government Press. While the former “FGP 29/72025/5OO” lists the page range as A385-A597, the copy released by the National Assembly bearing the stamp “Final Approved Copy” lists the page range as A387-A596.

While the differences may seem subtle at a glance, a deep dive reveals material discrepancies that could redefine tax liabilities for millions of businesses, particularly Small and Medium Enterprises (SMEs).

Perhaps the most jarring difference lies in the very definition of a “Small Company.” Under the FIRS version of the Act, a small company which enjoys a 0% Companies Income Tax (CIT) rate, is defined as a business with an annual gross turnover of N50,000,000 or less. In a significant departure, the Presidentially-signed Final Approved Copy raises this ceiling to N100,000,000. This N50 million gap is not merely semantic; it represents a vast segment of the Nigerian business community that would be exempt from income tax under the official law but potentially pursued for payment under the FIRS version.

Read more: Why Nigeria Cannot and Will Not Tax Your Bank Account – Eben Joels

Another subtle but material difference lies in the taxation of “Digital” vs. “Virtual Assets”. As Nigeria seeks to formalize its burgeoning digital economy, the terminology used to describe what is to be taxed is not so straightforward. In the FIRS version, Section 4(1)(j) explicitly brings “profits or gains from transactions in digital or virtual assets” into the tax net. The Final Approved Copy, however, opts for the more concise “digital assets”. While “digital” is often used as a catch-all, the inclusion of “virtual” in the FIRS version appears to cast a wider, more aggressive net over the crypto and blockchain space.

The list of repealed laws is the bedrock of any new tax regime. Here, the FIRS version includes a critical addition: it lists the “Taxes and Levies (Approved List for Collection) Act” as being repealed. The version released by the National Assembly and signed by the President does not include this Act in its list of repeals. This creates a legal grey area regarding which agency; Federal, State, or Local has the authority to collect specific levies. If the Taxes and Levies Act remain in force (as the President’s signature suggests), many of the collection mandates assumed by the new Act could face constitutional challenges in court.

The energy sector is not exempt from the confusion. In Section 86, which governs decommissioning and abandonment funds for petroleum operations, the FIRS version demands that licensees deposit a minimum of 30% of the fund with a Nigerian bank. The national assembly version sets the threshold at 15%.

Furthermore, the FIRS document contains an expanded Section 13 that provides detailed definitions for “financial technology” (fintech), “shared services”, and “labelled startups”. These technical definitions, intended to clarify the tax status of tech-driven services, are notably absent from the same section in the version signed into law by the President.
In the eyes of the Nigerian judiciary, the rule of thumb is clear: the version signed by the Clerk of the National Assembly and given Presidential Assent is the law of the land. The “Final Approved Copy,” which lists the Official Gazette range as A387-A596, remains the only legitimate reference for taxpayers.

Read more: The Limits of Regulatory Authority and the Imperative of Legislative Clarity

The instances mentioned above do not reflect all the material instances we have cited. For example, the scope of “employment income” appears broader in the unsigned version distributed earlier, before the recent version released by the National Assembly. There are also differences in what constitutes “Gas Production Credits”. Hidden somewhere in the previous version is a mandate for the Nigerian Upstream Petroleum Regulatory Commission to account for all royalties due within the ten years immediately preceding the Act’s commencement. This material mandate is missing from the version released by the National Assembly.

As the FIRS begins implementation, discrepancies such as referring to the “Nigeria Revenue Service” instead of the “Nigerian Revenue Service” cited in the signed copy and several other subtle differences may lead to avoidable litigation. For now, Nigerian businesses are advised to comply with the signed Gazette issued by the National Assembly.

Nigeria’s ongoing tax reform process, including the enactment of omnibus tax statutes intended to replace and consolidate several existing tax laws, represents one of the most far-reaching fiscal restructurings in recent history. Given the breadth and systemic impact of these reforms, strict adherence to constitutional procedure, legislative authority and settled principles of administrative law is indispensable. These are just not matters of form; they go to the legitimacy of the law itself.

Recent public statements attributed to the Chairman of the Presidential Fiscal Policy and Tax Reforms Committee, suggesting that perceived defects or inconsistencies in the clear provisions of a gazetted Act may be addressed through regulations, had already raised concern within the legal and tax community. Those concerns have now assumed greater significance in light of both Mr. Oyedele’s further explanation and the emergence of an ongoing investigation by the National Assembly into post-passage alterations of the tax legislation.

Mr. Oyedele’s Clarification and the Problem It Reveals

In his most recent public explanation, Mr. Taiwo stated that he does not have access to the harmonised version of the tax legislation as passed by the National Assembly. He further indicated that this lack of access makes it difficult to ascertain whether the version currently gazetted accurately reflects what was approved by the legislature.

This clarification is legally consequential. If a key factor in the reform process is unable to independently verify the harmonized legislative text, then questions about discrepancies cannot be resolved by assumption, explanation or administrative interpretation. At that point, the issue ceases to be one of implementation detail and becomes a question of legislative authenticity.

Read more: Why Nigeria Cannot and Will Not Tax Your Bank Account – Eben Joels

Legislative Authority and the Role of the National Assembly

Under sections 4(1) and (2) of the Constitution of the Federal Republic of Nigeria 1999 (as amended), legislative power for the Federation is vested exclusively in the National Assembly. That authority is neither shared with committees nor exercisable by administrative bodies through proxy. The Supreme Court has consistently affirmed that substantive law-making power is exclusive and non-delegable.

Once a bill has been passed by the National Assembly, assented to by the President and published in the Official Gazette, the legislative process is complete. The text so gazetted constitutes the law and is the only version recognized by the Constitution. However, this constitutional finality necessarily presupposes that the gazetted text is an authentic reproduction of the harmonised bill passed by Parliament.

Gazetting, Authenticity and the Current Uncertainty

Publication in the Official Gazette is the act that confers legal force and public notice on legislation. Nigerian courts have consistently treated the Gazette as conclusive evidence of statutory law. However, the authority of the Gazette depends on authenticity. Where credible questions arise as to whether the gazetted text corresponds with the harmonised version approved by the National Assembly, that uncertainty strikes at the root of legality.

This concern is no longer speculative. The House of Representatives has formally constituted a Select Committee to investigate allegations of post-passage alterations to the tax legislation. The Committee’s interim findings suggest that certain provisions may have been inserted, modified or removed after legislative passage, raising serious constitutional questions as to validity.

In such circumstances, neither drafts, explanatory notes nor post-enactment assurances can cure the uncertainty. Only the legislature itself can conclusively determine what it passed.

Read more: How the Nigeria Tax Act 2025 Empowers Individual Taxpayers

Why Regulations Cannot Resolve Legislative Defects

It is in this context that suggestions about using regulations to “correct” perceived defects become particularly problematic. Regulations are a form of delegated or subsidiary legislation. Their validity depends entirely on the enabling Act, and Nigerian case law is settled that they cannot amend, override or contradict the clear provisions of an Act of the National Assembly.

More fundamentally, regulations cannot be used to resolve doubts about whether the primary legislation itself accurately reflects legislative intent. Delegated legislation presupposes a valid and settled principal statute. It cannot be deployed to stabilise, legitimise or repair uncertainty at the level of primary legislation.

Institutional Risk of Proceeding Amid Legislative Uncertainty

Proceeding with implementation while the National Assembly is actively investigating the legality and provenance of the gazetted Acts carries significant institutional risk. It risks creating multiple competing “versions” of the law: one allegedly passed, another gazetted, and a third administratively interpreted. In tax law, where certainty is foundational, such fragmentation is untenable.

It also exposes taxpayers, administrators and the government itself to avoidable litigation, compliance disputes and enforcement challenges. Once implementation begins, unwinding actions taken under a statute later found to be defective becomes legally and practically complex.

The Case for Deferring Implementation

In light of Mr. Oyedele’s clarification and the ongoing legislative investigation, constitutional prudence points in one direction. Implementation of the new tax legislation should be deferred until the National Assembly concludes its inquiry and either confirms the authenticity of the gazetted text or takes corrective legislative action.

Deferring implementation is not an indictment of reform. Rather, it is a safeguard for the reform. It protects taxpayers from uncertainty, preserves institutional credibility and ensures that when implementation begins, it rests on an unimpeachable legal foundation.

Conclusion

Nigeria’s tax reform agenda can only succeed if it is anchored firmly in constitutional legality. Where uncertainty exists as to whether a gazetted Act faithfully reflects what the legislature passed, that uncertainty must be resolved by the legislature, not managed by regulation or administrative explanation.

No committee, however well intentioned, can substitute regulatory assurance for legislative certainty. The supremacy of the Constitution, the primacy of the National Assembly and the authority of an authentic Official Gazette are not obstacles to reform. They are the conditions that make reform lawful, credible and enduring.

 

There is a pervasive fear among Nigerians often fueled by aggressive headlines that the government is on the verge of peering into your bank account and arbitrarily debiting “unpaid taxes” based on your daily transaction alerts.

The fear is understandable. The government is desperate for revenue. The recent passage of the Income Tax Act (ITA) 2025, a product of the current administration’s tax reform committee, was meant to modernize our archaic tax laws. Despite the fanfare, the new Act has failed to address the fundamental structural flaws in the old Personal Income Tax Act (PITA).

Here is the cold, hard reality: The Nigerian government cannot and will not tax your bank account directly anytime soon. Here is why.

The Wrong Taxman has the Data (Federal vs. State)

The primary safeguard preventing Nigeria from taxing your personal bank account is Nigeria’s federal structure.

Under the Nigerian constitution and retained by the ITA 2025, the Federal Government (via the FIRS or the newly proposed Nigeria Revenue Service) collects taxes from companies. The State Governments (via their State Internal Revenue Services) collect taxes from individuals.

This creates a massive disconnect. The Federal Government has the data. Through the NIBSS and BVN frameworks, the Federal Government can theoretically track money flows.  However, the Federal Government cannot legally collect Personal Income Tax (PIT) from you unless you are a police officer, military personnel, or a diplomat. For the remaining 99% of the population, that right belongs to the state where you reside.

The FIRS cannot simply hand over your banking data to 36 states because of complex data privacy and banking secrecy laws that remain largely unaddressed by the new Act. A simple fix such as enacting a nominal federal income tax (say 1%) would have significantly enabled the sharing of data between Federal and State Tax agencies. It could also be used as tool to transfer funds to the vulnerable rather than the current opaque method done via the Ministry of Humanitarian Affairs.

The 35 Weak Links (State Internal Revenue Services)

If you live in Lagos, you might have reason to be slightly worried. The Lagos State Internal Revenue Service (LIRS) is an outlier, technologically advanced and aggressive. But for the rest of the country? The system is broken.

Aside from Lagos and perhaps the FCT, most State Internal Revenue Services (SIRS) are hollow institutions. They are often headed by political appointees; friends of the Governor with zero depth in tax administration or forensic accounting.

These agencies lack the software to analyze bank statements even if they had them. They lack the political will to compel their wealthy residents to pay the right amount of tax because these wealthy individuals may very well be the sponsors of those holding the highest political positions.

The State IRS rely almost exclusively on Pay-As-You-Earn (PAYE), where companies do the work for them by deducting taxes at the source. They lack the capacity to audit the millions of personal bank accounts within their domain. They are too weak to enforce collection on individuals who do not earn a salary.

The “Secondee” Loophole

The most glaring weakness of the ITA 2025 is that it was touted as a reform to capture the wealthy, yet it arguably makes it easier for the ultra-rich to slip away.

A major flaw exists in the definition of taxable income regarding “Secondees”, expatriates or Nigerians seconded from foreign firms to work in Nigeria. The Act appears to completely exempt the income of a secondee if they can prove they are paying taxes in their “home country.”

This is a massive oversight. It means a high-earning executive earning $20,000 a month in Nigeria can avoid paying any tax to the Nigerian state by presenting a tax receipt from a low-tax jurisdiction or their home country. While the average Nigerian employee has their tax deducted at source, the high-net-worth individual with complex global income sources is given a legal exit route. If the law cannot even capture the clearly defined income of a corporate executive, it certainly lacks the sophistication to scrutinize the murky inflows of a personal savings account.

Bank Turnover ≠ Taxable Income

Finally, there is a legal hurdle that the tax authorities have not cleared. A credit alert in your bank account is not proof of income. If your spouse transfers money to you for school fees, that is not income. If you sell a used car and the buyer transfers cash, that is a return of capital, not necessarily profit. If you receive a refund for a failed transaction, that is not income.

For a tax authority to tax your bank account, it must first distinguish between revenue and income. This requires a level of forensic auditing that simply does not exist at the state level. They cannot simply apply a flat tax rate to your total credit alerts without facing lawsuits they would almost certainly lose in a working judiciary.

Conclusion

While ITA 2025 has rearranged the furniture, the house remains the same. As long as the collection of personal income tax is left to 36 disparate, under-resourced, and politically compromised State Boards, your bank account remains relatively safe.  And as long as every Nigerian does not pay personal income tax to the center, the current tax reforms from a personal income perspective are inchoate.

The taxman may bark, but until the constitution is amended to centralize personal tax collection or until the States wake up and employ technocrats rather than politicians, he has no teeth to bite your savings.

Eben Joels is the Managing Partner of Stransact Chartered Accountants, an audit, tax, and consulting firm in Nigeria. He is also a subject-matter expert in International Tax and Financial Reporting Standards and a licensed attorney.

There is a pervasive fear among Nigerians—often fueled by aggressive headlines—that the government is on the verge of peering into your bank account and arbitrarily debiting “unpaid taxes” based on your daily transaction alerts.

The fear is understandable. The government is desperate for revenue. The recent passage of the Income Tax Act (ITA) 2025, a product of the current administration’s tax reform committee, was meant to modernize our archaic tax laws. Despite the fanfare, the new Act has failed to address the fundamental structural flaws in the old Personal Income Tax Act (PITA).

Here is the cold, hard reality: The Nigerian government cannot—and will not—tax your bank account directly anytime soon. Here is why.

The Wrong Taxman has the Data (Federal vs. State)

The primary safeguard preventing Nigeria from taxing your personal bank account is Nigeria’s federal structure.

Under the Nigerian constitution and retained by the ITA 2025, the Federal Government (via the FIRS or the newly proposed Nigeria Revenue Service) collects taxes from companies. The State Governments (via their State Internal Revenue Services) collect taxes from individuals.

This creates a massive disconnect. The Federal Government has the data. Through the NIBSS and BVN frameworks, the Federal Government can theoretically track money flows.  However, the Federal Government cannot legally collect Personal Income Tax (PIT) from you unless you are a police officer, military personnel, or a diplomat. For the remaining 99% of the population, that right belongs to the state where you reside.

The FIRS cannot simply hand over your banking data to 36 states because of complex data privacy and banking secrecy laws that remain largely unaddressed by the new Act. A simple fix such as enacting a nominal federal income tax (say 1%) would have significantly enabled the sharing of data between Federal and State Tax agencies. It could also be used as tool to transfer funds to the vulnerable rather than the current opaque method done via the Ministry of Humanitarian Affairs.

The 35 Weak Links (State Internal Revenue Services)

If you live in Lagos, you might have reason to be slightly worried. The Lagos State Internal Revenue Service (LIRS) is an outlier—technologically advanced and aggressive. But for the rest of the country? The system is broken.

Aside from Lagos and perhaps the FCT, most State Internal Revenue Services (SIRS) are hollow institutions. They are often headed by political appointees—friends of the Governor with zero depth in tax administration or forensic accounting.

These agencies lack the software to analyze bank statements even if they had them. They lack the political will to compel their wealthy residents to pay the right amount of tax because these wealthy individuals may very well be the sponsors of those holding the highest political positions.

The State IRS rely almost exclusively on Pay-As-You-Earn (PAYE), where companies do the work for them by deducting taxes at the source. They lack the capacity to audit the millions of personal bank accounts within their domain. They are too weak to enforce collection on individuals who do not earn a salary.

The “Secondee” Loophole

The most glaring weakness of the ITA 2025 is that it was touted as a reform to capture the wealthy, yet it arguably makes it easier for the ultra-rich to slip away.

A major flaw exists in the definition of taxable income regarding “Secondees”—expatriates or Nigerians seconded from foreign firms to work in Nigeria. The Act appears to completely exempt the income of a secondee if they can prove they are paying taxes in their “home country.”

This is a massive oversight. It means a high-earning executive earning $20,000 a month in Nigeria can avoid paying any tax to the Nigerian state by presenting a tax receipt from a low-tax jurisdiction or their home country. While the average Nigerian employee has their tax deducted at source, the high-net-worth individual with complex global income sources is given a legal exit route. If the law cannot even capture the clearly defined income of a corporate executive, it certainly lacks the sophistication to scrutinize the murky inflows of a personal savings account.

Bank Turnover ≠ Taxable Income

Finally, there is a legal hurdle that the tax authorities have not cleared. A credit alert in your bank account is not proof of income. If your spouse transfers money to you for school fees, that is not income. If you sell a used car and the buyer transfers cash, that is a return of capital, not necessarily profit. If you receive a refund for a failed transaction, that is not income.

For a tax authority to tax your bank account, it must first distinguish between revenue and income. This requires a level of forensic auditing that simply does not exist at the state level. They cannot simply apply a flat tax rate to your total credit alerts without facing lawsuits they would almost certainly lose in a working judiciary.

Conclusion

While ITA 2025 has rearranged the furniture, the house remains the same. As long as the collection of personal income tax is left to 36 disparate, under-resourced, and politically compromised State Boards, your bank account remains relatively safe.  And as long as every Nigerian does not pay personal income tax to the center, the current tax reforms from a personal income perspective are inchoate.

The taxman may bark, but until the constitution is amended to centralize personal tax collection—or until the States wake up and employ technocrats rather than politicians—he has no teeth to bite your savings.

Eben Joels is the Managing Partner of Stransact Chartered Accountants, an audit, tax, and consulting firm in Nigeria. He is also a subject-matter expert in International Tax and Financial Reporting Standards and a licensed attorney.

The Nigeria Tax Act (NTA) 2025 represents a landmark reform in the country’s fiscal landscape, particularly for individual taxpayers. Enacted to modernize and harmonize Nigeria’s tax framework, the Act introduces a suite of progressive measures aimed at enhancing equity, simplifying compliance, and delivering tangible reliefs to low and middle-income earners.

This article explores the key provisions of the NTA 2025 that affect individuals, highlighting the opportunities, reliefs, and incentives embedded in the new law and what they mean for taxpayers, employers, and the broader economy.

Read more: Stransact makes World Tax list of Tier-1 firms in tax services

A New Era for Personal Taxation

The NTA 2025 repeals and replaces the Personal Income Tax Act (PITA) 2011, addressing long-standing ambiguities and introducing a more transparent, inclusive, and equitable tax regime. The reforms are designed to align Nigeria’s tax system with global best practices while ensuring that taxation supports, rather than stifles, economic growth.

Read more: Nigeria Tax Reform Act: What Businesses Need to Know

Key Provisions of the NTA 2025 and their Implications

1. Expanded Definition of Chargeable Income: The Act now explicitly lists items such as: Prizes, winnings, and honoraria, grants, awards, laurels, etc.; profits or gains from transactions in digital or virtual assets; disposal of money or money instruments; profits or gains from the disposal of property or fixed assets; and securities; discounts or rebates, etc., under the scope of taxable income.This eliminates previous ambiguities surrounding the tax treatment of income from emerging sectors and informal sources, thereby widening the tax net and enhancing government revenue without increasing tax rates for compliant taxpayers. It reflects the government’s policy objective of modernizing the tax base to capture new forms of wealth and align Nigeria’s tax framework with global best practices [NTA 2025, Section 4].

2. Introduction of Rent Relief Deduction: Individual taxpayers can now claim 20% of their annual rent (up to a maximum of ₦500,000) as an Eligible Deduction, provided valid tenancy documentation is provided. This provision is particularly beneficial for salaried workers and urban dwellers, offering meaningful relief from housing-related expenses [NTA 2025, Section 30 (2) (vi)].

3. Abolition of the Consolidated Relief Allowance (CRA): The CRA, previously a blanket deduction for all taxpayers, has been repealed. In its place, the Act introduces a more itemized and transparent system of deductions, encouraging accurate reporting and aligning tax reliefs with actual expenses incurred.

4. Enhanced Compensation for Loss of Office: The tax-exempt threshold for compensation due to loss of office has now been increased from ₦10 million to ₦50 million (only the excess above this new threshold will constitute chargeable gains). This change provides greater financial protection for individuals facing job termination or workplace-related injuries [NTA 2025, Section 50 (1)].

5. Revised Progressive Tax Bands: The Act introduces a new progressive tax structure, adjusting rates from the previous 7%–24% under PITA to 0%–25% under the NTA. This ensures that:

• Low-income earners (earning the minimum wage and below /month) are exempt from income tax
• Middle-income earners benefit from reduced tax burdens
• High-income earners contribute a fairer share of their income towards national development
  [NTA Fourth schedule).

6. Clarified Definitions for Key Tax Terms: To eliminate ambiguity and reduce disputes, the Act provides precise definitions for terms such as:

• Non-Resident Individual (NRI); Interest; Dividend; Royalty
• This clarity enhances legal certainty and simplifies compliance for both taxpayers and tax administrators [NTA 2025, Sections 7-8, 202].

Other Notable Provisions and Compliance Implications

Beyond the major reforms highlighted above, the Nigeria Tax Act 2025 introduces several additional measures that shape how individuals earn, report, and manage their tax obligations.

• Taxation of Capital and Chargeable Gains: The Act consolidates the taxation of chargeable gains, bringing profits from the disposal of property, securities, or other assets directly within the personal income tax framework. This integration simplifies administration but also means that individuals must now evaluate the tax impact of every asset sale or transfer. Certain exemptions remain for personal residences and low-value personal assets.
• Clarified Residence and Source Rules: Sections 7 – 8 establish clearer tests for determining whether an individual is resident in Nigeria and whether income is derived from Nigerian sources. These provisions are especially relevant for Nigerians earning from remote or cross-border work, digital businesses, or offshore investments. Proper documentation of residence and income source will be critical for compliance.
• Broader Range of Allowable Deductions: In addition to the new rent relief, the NTA 2025 retains or clarifies deductions for pension contributions, National Housing Fund (NHF), and National Health Insurance Scheme (NHIS) contributions, as well as verified donations to approved charitable causes. These provisions reward documented savings and social contributions, encouraging a more structured financial culture.
• Presumptive Taxation for Informal Income Earners: To improve inclusion and widen the tax net, the Act empowers the tax authorities to apply presumptive assessment frameworks for individuals or micro-enterprises with incomplete records. This ensures that self-employed and gig-economy earners contribute fairly, while still providing mechanisms for appeal and voluntary disclosure.
• Digitalization and Enhanced Compliance Obligations: Complementing the NTA are reforms under the Nigeria Tax Administration Act 2025, which mandate electronic filing, use of Tax Identification Numbers (TINs), and stricter record-keeping for individuals. Taxpayers are therefore encouraged to adopt digital compliance tools and maintain proper documentation to avoid penalties.
• Effective Date and Transition Arrangements: Most provisions of the NTA 2025 relating to individuals take effect from 1 January 2026, giving taxpayers time to understand the new framework and adjust their financial and payroll systems accordingly. Transitional guidelines are expected from the Federal Inland Revenue Service (FIRS) and relevant State Tax Authorities to aid smooth implementation.

Read more: Why IFRS 18 Should Be a Strategic Priority for CFOs and Financial Leaders

Beyond Compliance: A Pathway to Financial Empowerment

The NTA 2025 is not merely a legislative update, it is a strategic tool for financial empowerment. By offering targeted reliefs and incentives, the Act encourages individuals to: Plan their finances more effectively, leverage available deductions and engage proactively with the tax system.

For employers, the reforms necessitate a review of payroll systems, employee benefits, and vendor engagement processes to ensure full alignment with the new tax framework.

Read more: Stransact expands horizon, unveils Deals and Advisory Services

Looking Ahead: A More Inclusive Tax Culture

The Nigeria Tax Act 2025 positions personal taxation as a catalyst for inclusive economic growth. By prioritizing fairness, transparency, and simplicity, it fosters a culture of voluntary compliance and trust in the tax system.

Whether you are a salaried employee, entrepreneur, or investor, the new law offers a timely opportunity to reassess your financial strategy, maximize your tax benefits, and contribute meaningfully to national development.