How to get TIN in Nigeria became much simpler from 1 January 2026. Under the new rules, your National Identification Number (NIN) can now serve as your Tax Identification Number. If you own a registered business, your CAC registration number also functions as your Tax ID.
In many cases, you no longer need to fill out a separate form or join long queues. For some people, the TIN has already been generated and is simply waiting to be retrieved from the relevant government database. This guide explains how to get TIN in Nigeria for free, why having one is important, and how to avoid common mistakes during the process.
What Changed in 2026: The NTAA Reform
On the 1st of January, 2026, the 2025 Nigeria Tax Administration Act (NTAA) introduced a unified Tax ID system. The Nigeria Revenue Service (NRS), previously known as the Federal Inland Revenue Service (FIRS), is now in charge of handling federal tax and revenue functions under the Nigeria Revenue Service (Establishment) Act, 2025. The old Joint Tax Board has been replaced with the new Joint Revenue Board (JRB).
To get your individual Tax Identification Number (TIN) in Nigeria, it is generated from and linked to your National Identification Number (NIN). For businesses, organizations, and any other registered establishments, their TIN is linked to their Corporate Affairs Commission (CAC) registration details.
Individuals can get their TIN on the official portal using their NIN, and businesses can do the same with their CAC registration number. You can complete this process in under five minutes.
One of the main differences between the old process and the new one is that taxpayers and businesses don’t need a separate process to get their TIN. Their registered identity records—NIN or CAC registration—can be used by the government to generate one.
So for people asking how to get TIN in Nigeria with their NIN or CAC registration number, all they need to do is retrieve it—nothing else.
Who Needs a TIN and Why?
Individuals who earn taxable income or take part in taxable activities need to have a Tax Identification Number (TIN) in Nigeria. According to the Nigeria Revenue Service, a valid TIN for salary earners and TIN for businesses can be used for a number of purposes such as corporate banking services, employment, getting government contracts, and annual tax filings.
Having a TIN has become increasingly important and mandatory since the unified tax system was implemented. You need it to open a personal or business bank account, register a business, apply for government contracts or grants, and file for income tax returns.
It is also an important requirement for businesses that are looking for loans, government contracts, or government support programs.
For instance, SMEDAN’s official One Stop Shop includes TIN as part of the required documents for several financing and government-service pathways. Also, the Federal Government’s 2026 National MSME Awards include having an active CAC registration and TIN as mandatory requirements before applying.
Practical examples of people and organizations that need a TIN:
- A freelance writer who earns a salary of ₦100,000 monthly falls under the taxable income bracket and they need to have a TIN.
- A business owner who registers their business with CAC will have their TIN linked to the CAC registration, and they can get it using the CAC registration number on the official NRS portal.
- An employee of any organization, corporation, or entity would already have a tax-paying record, but based on the new unified system, the individual’s Tax ID is linked to their NIN, and they can get it on the official NRS portal.
- Any SMEs applying for government grants or financial support programs may need to have a TIN because it is explicitly required by some government agencies.
The Critical Distinction: Retrieval vs. Registration
- Retrieval:
Most of the time, this is where many people get the TIN process completely wrong. If you have an NIN or your business has a CAC registration number, you don’t need to start the process from scratch—you already have a TIN. All you need to do is follow the instructions stated above, go on the official NRS portal, and use your NIN or a business’ CAC registration number to retrieve the TIN for free.
- Registration:
The only time you need to register is if you don’t have a NIN or a CAC registration number. If this is the case, firstly, you have to register for your NIN with the National Identity Management Commission (NIMC)). While business registrations are done with CAC. After this process is completed, your TIN will be automatically generated and linked to the NRS system.
Your NIN or CAC registration number is a key tax identification number requirement.
The mistake most people make is seeing TIN retrieval as a new registration process, when all they need to do—if they have a NIN or CAC registration—is to log in on the official NRS portal to retrieve their TIN.
The Three Pathways to Your TIN
- First Pathway — Individuals with a NIN
If you have a NIN, what you need to do is TIN retrieval, not a new TIN registration. You can do this on the official NRS portal with your NIN. Also note that TIN registration in Nigeria is online and free.
- Second Pathway—Business with CAC registration
The same process applies to a CAC-registered business as well, using the same official NRS portal.
It is important to state that your CAC business registration number is not your TIN. It is what your TIN is linked to and what you can use to retrieve it.
- Three Pathways—No NIN or CAC registration number
Register with NIMC to get your individual NIN or with CAC to get your business registration number. After this, log in to the official NRS portal and retrieve your already-linked TIN.
Step-by-Step: Retrieving Your Tax ID Online
This is the fastest and easiest way to retrieve your TIN online:
- Log in to the official Tax ID portal:
Visit the NRS Tax ID Portal. The portal provides the means for you to retrieve an existing TIN. - Select the right category: For an individual, go to the individual option and use your NIN. For a registered business or the like, go to the corporate option and use your CAC registration number.
- Enter the requested details: Put in all the necessary information the portal asks you for. The information you give will be cross-checked with your existing government records.
- Verify and save your Tax ID: Make sure that the information you’re looking at is correct and save your TIN.
Again, it is important to note that this isn’t a new registration process but a free retrieval process.
Step-by-Step: Registration (If You Have Neither NIN Nor CAC)
If you try to retrieve your TIN but it doesn’t work, it is because you don’t have a NIN or a CAC registration, and you need to resolve that first. The NIMC says that the NIN registration process is free. There’s no definite time frame for it, it may take hours or days.
For businesses registering with CAC for the first time. The commission has a 24-working-hour service timeline for new business-name and company registrations after documents have been submitted and any possible problems resolved. According to the new i-CRP guidance, there’s a chance for business name registration to be approved by AI and processed instantly. However, LLC, LLP, and LP registrations continue through manual approval.
For businesses looking for more than just a TIN, the NRS manages a Taxpayer Self-Service Portal for handling tax affairs, as well as taxpayer profiles, self-tax filing, payments, tax-clearance certificates, tax wallets, and compliance information. They can register on the new platform, Rev360—the replacement for the previous TaxPro Max platform. Registration is free, but the process is longer than a normal TIN retrieval.
Offline Option: If the Portal Doesn’t Work
Where to go: The nearest Nigeria Revenue Service (NRS), Joint Revenue Board (JRB), State Internal Revenue Service (SIRS) office, or CBN branch.
What to bring: For individuals, their NIN and for businesses, their CAC registration information. Also verify if you may need to bring any extra information.
What to expect: Don’t expect your application to be processed in a matter of hours or assume that every office has the same requirements—this is why verification is important.
Common Mistakes—and How to Avoid Them
- Trying to register instead of retrieving: Always try retrieval first. Only register if the portal doesn’t have your record.
- Entering your name differently than it’s registered: If you enter your NIN or CAC registration name differently on the portal, it may not find your record. Make sure you put it the same way.
- Leaving your BVN at home when going to the office: Taking it along may speed up the process.
- Confusing your Tax ID with a tax clearance certificate: They’re two different things. Your Tax ID is your Tax Identification Number (TIN) in Nigeria; your tax clearance certificate proves your tax status.
- Paying for TIN registration: The process is free. Don’t fall prey to scammers. Use the official portal or visit the offices directly.
- Registering but never confirming activation: After registering, go back to the portal and retrieve your number to confirm it has been activated.
After You Get Your Tax ID: What’s Next?
To save your TIN, you can take a screenshot or download it from the portal and then keep it in a safe place. Add it to your personal or business records and use it in scenarios where it is required.
Freelancers and self-employed people should also get their TIN and separate their personal bank account from their business bank account and keep a detailed record of their income and expenses.
Business owners can use their TINs for their business accounts, banking requirements, tax filing, and eligibility for government grants, financial support programs, or loans from financial powerhouses. Also, remember to always file your annual tax return.
Complete Your Business Registration in Nigeria
Ready to formalize your venture and secure an official Business Name with the Corporate Affairs Commission (CAC)? Learn the exact step-by-step process, required documentation, CAC portal fees, and legal best practices in our comprehensive guide to Sole Proprietorship Registration in Nigeria.