Less than a week remains until Nigeria’s July 31 e-invoicing deadline, and businesses are being warned to avoid critical implementation errors that could lead to non-compliance.

The Nigeria Revenue Service (NRS) has directed large taxpayers and companies with annual turnover of N5 billion and above to fully adopt the National E-Invoicing and Electronic Fiscal System by the deadline.Over 1,000 companies have already complied, but experts warn many are still making common mistakes.

Yele Oyekola, CEO of Duplo, highlighted five key errors: assuming registration alone equals compliance, treating e-invoicing as only a tax or IT project, automating broken processes without fixing operational weaknesses, skipping end-to-end testing, and waiting until the last minute to prepare.He stressed that businesses must integrate systems, validate data, and involve cross-functional teams to ensure smooth implementation.E-invoicing is part of Nigeria’s tax reform agenda to digitize tax administration, improve transparency, and curb revenue leaks.Companies are advised to start preparations early to avoid last-minute chaos and ensure compliance.