Large companies in Nigeria are facing a critical compliance test as a June deadline approaches for the rollout of a new electronic invoicing system that will give tax authorities near real-time access to business transactions.

Under the new framework, firms are required to connect their invoicing systems to the government’s platform and begin transmitting invoices digitally as they are issued. The shift marks a significant departure from the traditional model, where companies filed tax returns based largely on self-declared figures.

Now, every invoice is expected to pass through a central system, creating a digital trail that allows authorities to track sales, validate transactions, and match them against tax filings almost instantly.

For regulators, this is about closing gaps. For businesses, it is a fundamental change in how operations are tracked and reported.

Speaking during a webinar hosted by Stransact and Doftwerks West Africa Limited, Mohammed Bawa, head of product management at the Nigerian Revenue Service, made the stakes clear.

“It simply means that the NRS, by then, has the mandate to apply sanctions for non-compliance,” he said, referring to companies that fail to meet the June timeline.

The requirement currently applies to companies with an annual turnover above N5 billion, a group estimated at about 5,000 large taxpayers. But early progress suggests many are still catching up. Within weeks of the rollout, only around 1,000 firms, estimated at 20 percent of those affected, had begun integration. Early adopters include MTN Nigeria, IHS Towers, and Huawei Nigeria.

The system, known as the Merchant Buyer Solution (MBS), does not replace existing tax platforms but adds a real-time verification layer. Instead of waiting months after transactions occur for audits, authorities can now monitor activity as it happens.

That shift, analysts say, is the real story.

“Efficiency is the obvious benefit. But the deeper impact is assurance. Continuous validation strengthens governance, enhances investor confidence, and aligns Nigeria’s reporting standards with global best practice,” said Oluyemisi Daramola, partner at Bamidele Daramola & Co.

For businesses, however, the transition is not just technical. It comes with operational and financial implications. Companies must upgrade accounting systems, ensure compatibility, and tighten internal processes to meet real-time reporting requirements.

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There are also concerns about how much visibility regulators will have into company operations.

“There are legitimate fears from data security to how much visibility the authorities will have over transactions,” said Eben Joels, managing partner at Stransact.

The reform is part of a broader push to modernise Nigeria’s tax system and improve revenue collection by reducing leakages. It also aligns with a global shift toward digital tax administration, where countries such as Brazil and Italy already operate real-time invoice clearance systems.

In Nigeria, the rollout is being phased. Medium-sized businesses, with turnover between N1 billion and N5 billion, are expected to begin pilot testing in 2026, with enforcement scheduled for 2027. Smaller businesses will follow later, with full implementation expected by 2028.

Officials argue that the system will ultimately reduce disputes and limit the need for repeated audits by ensuring that both companies and regulators are working from the same set of data.

But in the immediate term, the pressure is on large firms to meet the June deadline or risk sanctions.

Beyond compliance, the rollout signals something bigger. Nigeria is moving toward a tax environment where transactions are no longer just recorded internally but are increasingly visible to regulators as they happen.

For businesses used to operating with some level of reporting flexibility, that shift could take some getting used to.

Meiza Nigeria