The Federal Inland Revenue Service (FIRS) has confirmed that the National Identification Number (NIN) has now automatically become a Tax ID for individual Nigerians.
The Service announced this in a public awareness campaign on the new tax laws posted on X on Monday.
For registered businesses, the FIRS said their RC number issued by the Corporate Affairs Commission (CAC) automatically becomes their tax ID under the new tax system.
This declaration comes amidst concerns over a provision of the tax laws mandating Tax ID for bank account ownership.
According to the FIRS, the Nigeria Tax Administration Act (NTAA) billed to come into force from January 2026, mandates the use of Tax ID for certain transactions.
“The Tax ID unifies all TINS previously issued by FIRS and states IRS into a single identifier.
“For individuals, your NIN automatically serves as your Tax ID, while for registered companies, your CAC RC number is used.
“You do not need a physical card, the Tax ID is a unique number linked directly into your identity,” the FIRS stated.
The FIRS added that the new tax ID systems simplify identification, reduce duplication, closes loophole for tax evasion and ensure fairness so that everyone who earns taxable income contributes their share.