The Nigeria Revenue Service (NRS) has confirmed 31 July 2026 as the date by which all large taxpayers must be fully compliant with the National E-Invoicing and Electronic Fiscal System, also known as the Merchant Buyer Solution (MBS).

The public notice, signed by the Executive Chairman, Dr Zacch Adedeji, follows the implementation timeline set out in the earlier notice of 17 February 2026. It confirms two things that matter for any business still working through implementation: compliance monitoring has already commenced, and regulatory and enforcement action will follow for those who have not completed the process by the deadline.

Large taxpayers are companies with annual gross turnover of ₦5 billion and above. The NRS has confirmed that more than 1,000 companies had completed the process as of the first quarter of 2026.

Registration is not the same as compliance

This is the point most likely to catch businesses out. A number of organisations have onboarded onto the MBS platform and consider the matter closed. The notice is explicit that onboarding is only the first of several requirements.

For the avoidance of doubt, the NRS states that compliance includes:

• Completion of onboarding on the NRS Merchant Buyer Solution.
  Successful integration of taxpayer systems through approved Access Point Providers (APPs) and/or Systems Integrators (SIs).
  Completion of all required validation and testing activities.
  Active transmission of invoices to the NRS e-invoicing platform in line with approved standards and guidelines.
  Ensuring that only compliant e-invoices bearing a valid Invoice Reference Number (IRN) are received from suppliers.

A business that has registered but is not transmitting is not compliant. Equally, a business that has integrated but has not completed validation and testing has not finished the process.

The supplier requirement changes the picture

The final requirement deserves particular attention, because it extends the obligation beyond your own systems.

Under the framework, a business is expected to ensure that the invoices it receives from its suppliers are compliant e-invoices carrying a valid IRN. In practical terms, this means your compliance position is affected by the readiness of the businesses you buy from.

There is a direct commercial consequence. Input VAT recovery depends on invoices having been validated and transmitted through the platform. Where a supplier has not integrated, the invoices it issues may not support a valid input VAT claim, and the cost of that failure is borne by the customer rather than the supplier.

The effect is that compliance now cascades through supply chains. Large taxpayers who have completed implementation will increasingly require the same of their vendors, and businesses below the large taxpayer threshold will find the requirement reaching them commercially well before it reaches them by regulation.

What happens after 31 July

The NRS has stated that it has commenced compliance monitoring activities to assess adherence across the large taxpayer segment, and that regulatory and enforcement actions will be triggered in accordance with the relevant tax laws and regulations where implementation has not been concluded.

Businesses should also bear in mind that penalties under the framework are not one-off. The regime provides for an initial penalty for the first default, followed by daily penalties for each day the default continues, alongside penalties tied to invoices issued outside the fiscalisation system.

If you have not yet completed implementation

With a short window remaining, the practical priority is to move from planning into execution.

Onboarding, integration, validation and go-live are sequential, and each depends on the one before it. For most businesses, the technical integration itself is not the longest part of the process. Delays typically arise in gathering invoice data, agreeing the mapping to the NRS format, and securing internal sign-off.

Three things are worth doing now:

• Establish exactly where you stand. Registered is not the same as integrated, and integrated is not the same as transmitting. Confirm which of the five requirements you have actually met.
• Confirm your route to the platform. Invoices can only reach the NRS through an accredited Access Point. If you have not appointed an APP or SI, that is the first decision to make.
• Check your entities individually. The requirement applies to each company separately. Groups cannot register or transmit on a consolidated basis, so each entity within a group needs its own registration and its own integration.

The wider timeline

Large taxpayers are the first phase, but the framework extends further. Businesses with annual turnover between ₦1 billion and ₦5 billion fall within the phase that commenced in July 2026, and those below ₦1 billion are scheduled to follow in January 2027.

The requirement is ultimately universal. Turnover thresholds determine when a business must comply, not whether it must.

How Doftwerks can help

Doftwerks West Africa Limited is accredited by the Nigeria Revenue Service as both a Systems Integrator and an Access Point Provider, and operates a live production integration transmitting invoices to the NRS platform today. We are ISO 27001 certified.

As the technology practice of Stransact Chartered Accountants, we approach e-invoicing as both a technology and a tax compliance exercise. Our integration engineers and chartered tax professionals work together, which matters when the question is not only whether an invoice transmits successfully but whether it is correct.

We support businesses across the full implementation: NRS onboarding and registration, integration and data mapping from your existing ERP or accounting system, sandbox testing and validation, production go-live, and ongoing transmission monitoring and support as the guidance evolves.

If your organisation is still working towards compliance, we would be glad to discuss where you stand and what can realistically be achieved in the time available.

Contact us: [email protected] · +234 903 981 7173 · www.doftwerks.com

This article is provided for general information and does not constitute tax or legal advice. Businesses should seek professional guidance on their specific circumstances.