Nigerians will now use their National Identification Number as their official Tax Identification Number under the country’s updated tax system, according to the Federal Inland Revenue Service.
The clarification was made by FIRS during a public awareness campaign on new tax laws shared on Monday, as discussions grow around requirements tied to bank accounts and other financial dealings.
The policy applies nationwide and covers both individuals and businesses, aligning personal and corporate records under one unified tax identity framework.
Under the arrangement, individuals will automatically use their NIN as their Tax ID, while registered companies will rely on the RC number issued by the Corporate Affairs Commission for tax purposes.
The change is backed by the Nigeria Tax Administration Act, which takes effect in January 2026 and strengthens earlier rules introduced under the Finance Act of 2019.
FIRS explained that the system removes the need for separate tax cards, as the Tax ID exists as a unique number already linked to a person or company’s official records, simplifying compliance and tracking across the tax system.


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