How to Obtain Your Individual Tax ID in Nigeria Using Your NIN (Step-by-Step Guide)

Obtaining a Tax Identification Number (Tax ID) in Nigeria has become easier thanks to integration with the National Identification Number (NIN). Whether you’re a salary earner, freelancer, business owner, or job seeker, having a Tax ID is now mandatory for many financial and government-related activities.
In this guide, we explain how to retrieve your Tax ID using your NIN, why it’s important, and who is required to have one.
What Is a Tax Identification Number (Tax ID)?
A Tax Identification Number (Tax ID) is a unique number jointly issued by the Nigeria Revenue Service (NRS) and the Joint Revenue Board (JRB) under Nigerian tax laws.
It is used to:
- Identify individuals and businesses for tax administration
- Track tax compliance
- Enforce tax regulations
Under Nigeria’s tax framework, a Tax ID is linked to your identity, not created in isolation—this is why your NIN now plays a critical role.
Who Is Required to Have a Tax ID in Nigeria?
A valid Tax ID is required for accessing many public and private services in Nigeria, including banking, employment, and government transactions.
Individuals
- Salary earners
- Freelancers and consultants
- Self-employed individuals
- Anyone earning taxable income in Nigeria
Companies and Business Entities
- Companies registered with the Corporate Affairs Commission (CAC)
- Partnerships, NGOs, trustees, and organizations engaged in taxable activities
Non-Residents
- Non-residents with tax obligations or economic presence in Nigeria
Why Your NIN Is Important for Tax ID Registration
The Federal Inland Revenue Service (FIRS) now uses NIN-based verification to:
- Prevent duplicate tax records
- Improve transparency
- Strengthen identity verification
If your NIN is already linked to a Tax ID, you can retrieve it instantly online.
Step-by-Step Guide: How to Obtain Tax ID Using Your NIN
Follow these simple steps to retrieve your Tax ID:
Step 1: Visit the Official Tax ID Portal
Go to 👉 http://taxid.firs.gov.ng
Step 2: Select “Individual”
On the homepage, click “Individual” to begin.
Step 3: Choose NIN as Retrieval Method
From the Tax ID Retrieval Method dropdown:
- Select NIN
- Enter your 11-digit NIN
Step 4: Click “Retrieve Tax ID”
A pop-up window will appear requesting additional details.
Step 5: Enter Your Personal Details
Provide:
- First name
- Last name
- Date of birth
Then tick the checkbox to consent to the use of your information for identity verification.
Step 6: Submit Your Request
Click “Submit.”
Step 7: View Your Tax ID
Once verified, a confirmation message will appear stating that your NIN has been successfully matched to a Tax ID.
Your Tax ID will be displayed instantly on the screen.
How to Get Your NIN Using USSD (If You’ve Forgotten It)
If you don’t know your NIN, you can retrieve it using USSD:
- Dial *346# on your mobile phone
- Use the same phone number you registered with at the National Identity Management Commission (NIMC)
Your NIN will be displayed on your screen.
Is My Data Safe?
Yes. According to FIRS:
- Your data is processed securely
- Information is used strictly for verification purposes
- You can review full details in the Privacy Policy on the portal
Benefits of Having a Tax ID in Nigeria
Having a Tax ID allows you to:
- Open and maintain bank accounts
- Process employment and payroll documentation
- Apply for government contracts
- File tax returns correctly
- Avoid penalties for non-compliance
Final Thoughts
With the NIN-Tax ID integration, getting your Tax ID in Nigeria is now fast, digital, and stress-free. If you earn income or conduct business in Nigeria, retrieving your Tax ID should be a top priority.
Staying tax-compliant not only protects you from penalties but also positions you for better financial and professional opportunities.
Ignorance of tax obligations is not an excuse—take action today.

