How to get your Nigeria Tax ID with your NIN in minutes (free)

The Nigeria Revenue Service (NRS) and the Joint Revenue Board announced a unified Tax ID system on 18 May 2026, describing it as "a single, unified identity for all taxpayers" that works with federal and state tax authorities. For most people the practical question is simple: how do I get mine? This guide walks through the official route for individuals, then what changes for businesses. It is dated 9 November 2026, so check the portal for anything newer.

What is the Nigeria Tax ID and who needs one?

According to the NRS announcement as reported by Nairametrics, every taxable person in Nigeria is expected to have a Tax ID under Sections 6, 7 and 8 of the Nigeria Tax Administration Act, 2025. For individuals, the National Identification Number (NIN) issued by NIMC can serve as the Tax ID. For registered businesses, the Corporate Affairs Commission (CAC) RC number automatically becomes the Tax ID.

The same report says the new system replaces the older TIN Validation API that government agencies and financial institutions used. In plain terms, banks and agencies are moving to check one identity instead of juggling separate tax numbers.

How do I get my Tax ID with my NIN?

The official Tax ID portal describes a retrieval flow rather than a long registration form. As of 9 November 2026 it works like this:

• Open taxid.nrs.gov.ng and select your tax category: Individuals, Corporate or Others.
• Choose a retrieval method. The default is your National Identification Number (NIN).
• Enter your NIN. The portal says you can dial *346# on the phone number registered with NIMC to retrieve your NIN if you do not have it.
• Give consent for your information to be used for tax-related identity verification.
• Click "Retrieve Tax ID".

The portal says the lookup takes minutes and returns a 13-digit Tax ID. Save it somewhere safe, because banks, employers and tax offices may ask for it.

Is there another way to register as an individual?

Yes. Pulse Nigeria's guide for salary earners and business owners, published on 19 May 2026, describes selecting "Register for TIN (Individual)" on the Joint Revenue Board portal and entering personal details including your NIN or Bank Verification Number (BVN). That guide lists an accurate date of birth, your BVN, your registered phone number and any previous Tax Identification Number as the details to have ready. It also says you can visit the nearest NRS or State Internal Revenue Service office instead. Portal screens can change, so follow whatever the official page shows on the day.

How do businesses get a Tax ID?

Per the NRS announcement, a registered business's CAC RC number automatically becomes its Tax ID. The Pulse Nigeria guide says business owners should register the company with the CAC first, then apply through the NRS TaxPro Max portal at taxpromax.firs.gov.ng or at an NRS office. It lists the CAC certificate of incorporation, the memorandum and articles of association, proof of business address such as a utility bill, and details of directors as the documents to prepare.

Does it cost anything, and is there a deadline?

Pulse Nigeria's guide says the process is free whether you do it online or in person. Neither it nor the NRS notice reported by Nairametrics gives a deadline for individuals to obtain a Tax ID, and the notice does not mention fees. If someone asks you to pay for a Tax ID, treat it as a warning sign and use the official portal yourself.

What if the portal does not find me?

A failed lookup usually means the details you entered do not match the records the system checks. Re-enter your NIN carefully and use the phone number registered with NIMC. If it still fails, visit an NRS or State Internal Revenue Service office with your identification. We have not tested every error message on the portal, and we cannot tell you a processing time beyond what the portal itself states.

Why does this matter for your money?

The Tax ID sits at the centre of the new tax administration rules, which came into effect in January 2026. Having yours in hand avoids delays when a bank, employer or client asks for it.

What should I check before sharing my details?

• Type the address taxid.nrs.gov.ng yourself instead of following a link in a message, so you land on the official portal.
• Never pay a stranger or a social media "agent" who promises a faster Tax ID. The guide above says the process is free.
• Do not share your NIN, BVN or the one-time codes sent to your phone with anyone who calls or messages you first.
• Keep a screenshot or written copy of the 13-digit number once it appears, and note the date you retrieved it.
• If your name or date of birth differs between your NIN, BVN and bank records, fix that first, because the portal checks the details you enter against official records.

Details on this page were confirmed against the official portal and two published reports on 9 November 2026. Where the sources do not say something, such as a deadline for individuals, we have said so rather than guess.