NRS Sets July 31 Deadline for Large Taxpayers to Adopt E-Invoicing System

The Nigeria Revenue Service (NRS) has commenced compliance monitoring for large taxpayers under the National E-Invoicing and Electronic Fiscal System regime, setting July 31, 2026, as the deadline for full implementation.

The tax authority said companies covered by the requirement must complete their registration, system integration and testing before transmitting invoices electronically to the NRS platform.

The electronic fiscal system, also known as the Merchant Buyer Solution, is designed to provide the revenue authority with greater visibility into commercial transactions and improve the accuracy of tax reporting.

The compliance exercise follows an earlier public notice issued on February 17, 2026, which established the implementation schedule and made adoption compulsory for companies classified as large taxpayers.

NRS Begins Monitoring Companies

The NRS has started assessing the level of implementation across the large-taxpayer segment before the deadline.

Affected companies must complete onboarding on the Merchant Buyer Solution and connect their accounting or enterprise systems through approved Access Point Providers or System Integrators.

Businesses are also required to complete the prescribed validation and testing procedures before commencing active invoice transmission.

Every electronic invoice transmitted under the system must comply with the technical standards established by the revenue authority.

Large taxpayers must also ensure that invoices received from suppliers carry a valid Invoice Reference Number. This requirement means companies may need to review the compliance status of vendors within their supply chains, rather than concentrating solely on their internal systems.

Non-Compliant Companies Face Enforcement

The revenue authority warned that businesses failing to complete implementation by July 31 could face regulatory and enforcement measures under applicable tax laws.

It did not specify the penalties that would be imposed but advised companies with outstanding technical and onboarding requirements to conclude the process urgently.

The compliance deadline places additional pressure on affected organisations to align their invoicing, procurement and accounting systems with the central platform.

Companies may also need to train finance personnel, review internal controls and coordinate with external technology providers to prevent invoice-processing disruptions.

The system could strengthen tax administration by allowing the NRS to verify transactions more quickly, detect inconsistencies and reduce the use of unreported invoices.

For businesses, however, implementation may involve technology costs and changes to existing billing procedures, particularly for companies operating complex enterprise systems or processing large transaction volumes.

The NRS said technical assistance would remain available through its official e-invoicing portal as companies prepare for the enforcement deadline.