By Olumide Akinsola

By this time on August 1, the window the Nigerian Revenue Service extended to large taxpayers for onboarding to the electronic invoicing system will have closed. Finance leaders in Lagos, Abuja, and Port Harcourt have been quietly rehearsing with their teams for weeks what happens next.

A pattern has held steady across conversations I have had over recent weeks with CEOs, CFOs, tax directors, finance controllers and other business leaders at large Nigerian businesses. Most report confidence about their compliance readiness. A significant share of that group, once we walk through the infrastructure line by line, discover the confidence rests on assumptions rather than on validated integrations with the NRS Merchant Buyer Solution.

That gap is the more pressing issue as July 31 arrives.

Compliance under the mandate has a strictly technical definition. An invoice qualifies as compliant only when the business has transmitted it through the NRS Merchant Buyer Solution, it has been validated, an Invoice Reference Number has been assigned, and the invoice has returned to the issuing business carrying a QR code that authenticates its fiscal status. Anything short of that full sequence falls outside the system, whatever the internal ERP produces.

Several businesses have been surprised by this framing. A well-configured SAP, Oracle or Zoho instance produces neat, professionally formatted invoices. That production capability says little about whether those invoices are reaching the NRS. Enterprise systems handle a business’s own records; the mandate requires those records to travel through an accredited Access Point Provider into the tax administration infrastructure. Those are distinct operational functions, and the market has largely treated them as one.

Mohammed Bawa, who leads the e-invoicing programme at the NRS, has framed the underlying rationale in recent interviews with TechCabal as greater visibility, transparency, and accountability across the tax system. He explained that invoice data allows the NRS to compare declared turnover directly against transaction records, adding that “the whole essence is for invoices to serve as a deterrent, not to punish.”

That framing carries a specific commercial implication for buyers. Nigeria’s VAT system runs on an input credit chain, and that chain now runs through the NRS platform. Soon, a buyer that receives invoices which the Merchant Buyer Solution has not validated might be unable to claim the input VAT on all those transactions.

Non-compliance therefore reaches well beyond the issuing business, creating a problem for every customer downstream. Large procurement teams are already asking suppliers for evidence of compliance before releasing purchase orders.

The statutory penalty regime sits alongside these commercial consequences. Non-compliance attracts ₦200,000 per infraction, a 100% surcharge on the tax due, and interest at the Central Bank of Nigeria’s Monetary Policy Rate plus two points. For a business processing thousands of invoices a month, the arithmetic scales quickly.

Nigeria is joining a growing group of African economies moving to real-time invoice reporting. Tanzania launched its Electronic Fiscal Device system in 2010; Rwanda’s second-generation Electronic Billing Machines followed in 2017; Uganda introduced EFRIS in 2020; and Ghana rolled out its Virtual Sales Data Controllers in 2023.

Kenya’s eTIMS offers the closest peer-market comparison for Nigeria’s rollout. With over 2.5 million registered businesses, Nigeria’s programme is on track to become the continent’s largest. That scale is exactly why the compliance question landing on finance leaders today is unusually consequential.

For organisations that read this and find it describes their own position, the useful exercise in the final 24 hours turns on three questions. Is every invoicing system in the business transmitting to the NRS and receiving Invoice Reference Numbers back? Does the volume being transmitted match the volume being issued? And are the largest customers and suppliers by transaction value themselves compliant, given a break at either end of the chain affects both parties?

For those still working through this exercise, the NRS has held a consistent posture throughout the rollout: e-invoicing is an infrastructure upgrade to Nigeria’s tax system. Before the compliance argument even enters the room, the direct business benefits are substantial. Businesses gain error reduction, improved transparency, clearer and more easily accessible audit trails, and reduced fraud risk, all of which feed into stronger productivity and higher operational efficiency.

The mandate also streamlines VAT refunds, reduces the paper-based reconciliation that has historically slowed input credit recovery, and gives businesses a cleaner audit trail with regulators and government than the manual system it replaces. The commercial case for onboarding, once the technical work is complete, has quietly gained ground on the compliance case.

The trap in the final hours before the window closes is conflating good internal invoicing with being connected to the NRS. Those functions, though complementary,  are distinct, and the mandate is the latter.

For business leaders in large taxpayer entities still working through this today, the sequence is direct. Identify where the gaps sit, engage an accredited Access Point Provider like Namiri Technology Nigeria Limited to bridge them, and begin transmitting.

Because the non-compliance surcharge is progressive and will apply to every single invoice that you raise, likely beginning from the 1st of August 2026, every single day that passes without your compliance increases the risk to your business.

There is still time to make the call.

Olumide Akinsola is the Country Director of DigiTax Nigeria (Namiri Technologies), an NRS-accredited e-invoicing System Integrator and Access Point Provider.