Update: Individuals Tax ID is NIN, Registered Companies is CAC RC Number - FIRS
By: Israel Adeleke
OPEN TELEVISION NAIJA (OTN) News reports as gathered that, addressing public anxiety regarding new requirements that mandate a Tax ID for critical transactions, such as maintaining bank accounts, the Federal Inland Revenue Service (FIRS) has announced that individual Nigerians will no longer need to apply for a separate Tax Identification Number (TIN), as their National Identification Number (NIN) has automatically assumed that role.
OTN News further reports as gathered that the update which was shared on Monday, December 22, 2025, during a public awareness campaign on X (formerly Twitter) regarding Nigeria’s new tax laws, added that registered businesses, the Corporate Affairs Commission (CAC) registration number will now double as their official tax identifier under the modernized system.
The FIRS, who further explained that the Nigeria Tax Administration Act (NTAA), set to begin on January 1, 2026, strengthens these rules, noted that the requirement has technically existed since the Finance Act of 2019.
“The Tax ID unifies all Tax Identification Numbers previously issued by the FIRS and State Internal Revenue Services 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, as the Tax ID is a unique number linked directly to your identity,” the service stated.
The FIRS, however, emphasized that this unification is intended to streamline the tax process, eliminate duplication, and block loopholes for tax evasion.
OTN News observse that by linking tax identity directly to the NIN and CAC numbers, the government aims to ensure that everyone earning a taxable income contributes their fair share.
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