Businesses racing to meet Nigeria's July 31 electronic invoicing deadline risk serious compliance failures unless they avoid five critical implementation mistakes, experts warn.
The Nigeria Revenue Service issued a directive on Sunday requiring all large taxpayers—companies with annual turnover of N5 billion and above—to fully adopt the National E-Invoicing and Electronic Fiscal System by July 31, 2026. Non-compliance will trigger regulatory and enforcement actions under existing tax laws, the NRS cautioned.
The agency revealed that more than 1,000 companies had already complied with e-invoicing requirements as of the first quarter. The deadline follows a February 17, 2026 public notice introducing the implementation timetable for the Electronic Fiscal System, also called the Merchant Buyer Solution (MBS).
The initiative anchors the Federal Government's tax reform agenda to digitise tax administration, boost transparency, plug revenue leaks, and enable real-time monitoring of business transactions.
Yele Oyekola, CEO and co-founder of Duplo, an African financial operations and payments platform, identified the five mistakes in an interview with BusinessDay. Duplo holds both Systems Integrator and Access Point Provider licences, giving the firm direct visibility into how businesses prepare for implementation and the operational hurdles they face.
The first error: assuming registration alone equals compliance. Oyekola stressed that the deadline demands far more than signing up on the NRS platform.
Businesses must complete onboarding on the Merchant Buyer Solution, integrate their systems through an approved Access Point Provider or System Integrator, finish validation and testing, and start transmitting invoices to the NRS platform. "They should also review their invoice data, VAT classifications, approval processes, and customer and supplier records to ensure the information being submitted is accurate," Oyekola said.
The second mistake: treating e-invoicing as only a tax or IT project. Many organisations wrongly hand implementation to their tax or technology teams alone, he noted.
"It affects finance, sales, procurement, operations, and how businesses engage with customers and suppliers. All these teams need to be involved in the implementation process," he added.
Oyekola urged companies to build cross-functional implementation teams spanning finance, tax, procurement, operations, sales, and IT for a smooth transition.
The third error involves automating inefficient manual processes without first fixing operational weaknesses. Incomplete invoice information, incorrect VAT classifications, and poorly defined approval workflows often create bigger headaches once they're automated, Oyekola explained.
Businesses should review invoicing processes, clean customer and supplier data, and verify tax classifications are accurate before switching to the new system, he recommended.
The fourth mistake centres on skipping end-to-end testing of the entire invoicing workflow before going live. Many firms test individual components in isolation but fail to check how systems work together in real scenarios, creating unexpected failures at critical moments.
The fifth error: underestimating change management and staff training. Employees who don't understand the new system or resistance from teams unfamiliar with e-invoicing requirements can derail implementation despite solid technical setup.
