Most descriptions of Nigeria’s e-invoicing mandate stop at the obligation. This one starts at the finish line: the day your firm transmits a compliant invoice to the national platform and can prove it. Working backwards from that day, the exercise has four parts.
One: map the invoice flows. Before any system is touched, someone must write down how invoices actually move through the business — who raises them, from which systems, to which categories of counterparty, in what volumes. Business-to-business and business-to-government invoices are cleared by the authority before the buyer sees them; consumer transactions are reported within 24 hours. Which of your flows is which determines everything downstream.
Two: choose the route. The Merchant Buyer Solution can be reached directly through the portal or by integration through an accredited Access Point Provider or Systems Integrator. Low invoice volumes can live on the portal. Meaningful volumes cannot — manual entry does not survive contact with a month-end. The route decision is a cost and volume calculation, made once, in writing.
Three: integrate, test, validate. Invoices move in a prescribed structured format aligned to the Peppol BIS Billing 3.0 standard. Testing against validation is where timetables die: field mappings fail, reference data is incomplete, exceptions surface. This stage is why starting in the quiet period is cheap and starting in the enforcement window is not.
Four: go live and keep the evidence. A compliant invoice carries an Invoice Reference Number and cryptographic stamp. A compliant firm keeps more: the onboarding confirmations, the test records, the go-live date, and the running record of transmission. When a counterparty, an auditor, or the authority asks, the answer is a file, not a recollection. There is also a buyer-side duty most firms miss — the regulator has instructed businesses to accept only compliant invoices bearing a valid reference number from suppliers, which means your payables process needs a checking step, not just your receivables.
None of this is exotic. It is scope stated in writing, a fixed price for a defined outcome, delivery with verification, and a written record you can defend. Compliant, on a date, with proof.
— Aviot Advisory
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