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TIN After CAC Registration (FIRS)

What a TIN is, how you get it after registering with CAC, and how to activate it with FIRS.

By Belmadeng Editorial · Updated 22 Sept 2026

Please note

Belmadeng is an independent study platform and is not affiliated with the CAC. This is general information, not legal or financial advice — register and manage your business only on the official CAC portals (pre.cac.gov.ng and post.cac.gov.ng) and pay through official channels. You can register a business name or a simple company yourself; for complex structures consider a professional. Beware clone sites and agents charging inflated fees.

On this page

This page covers TIN in the context of CAC registration. For the full tax picture — activating your TIN, VAT, filing and the FIRS→NRS change — see our complete TIN & tax guide.

What a TIN is

A Tax Identification Number (TIN) identifies your business for tax purposes. It is issued in connection with the Federal Inland Revenue Service (FIRS) and is separate from your CAC registration number.

Getting your TIN

When you register a company (and increasingly a business name) with CAC, a TIN is generated/linked as part of the process — CAC and FIRS systems are integrated.

Activate with FIRS

You typically need to activate/validate your TIN with FIRS (via firs.gov.ng) so you can file taxes and use it for official transactions.

State tax registration

You may also need to register with your State Internal Revenue Service for state-level taxes (e.g. for employees’ PAYE). CAC registration alone doesn’t cover all tax obligations.

Why you need it

Your TIN is required to open a corporate bank account, file taxes, bid for contracts, and access many government and financial services.

Tips

  • Activate your TIN with FIRS after registration.
  • Register with your State IRS where required.
  • Keep your TIN and CAC documents together.

Frequently asked questions

What is a TIN?
A Tax Identification Number that identifies your business for tax, issued in connection with the Federal Inland Revenue Service (FIRS), separate from your CAC number.
Do I get a TIN after CAC registration?
Yes — a TIN is generated/linked when you register (especially a company), as CAC and FIRS systems are integrated.
How do I activate my TIN?
Activate/validate it with FIRS via firs.gov.ng so you can file taxes and use it for official transactions.
Do I need to register with a State IRS too?
Often yes — for state-level taxes (like employees’ PAYE). CAC registration alone doesn’t cover all tax obligations.
Why do I need a TIN?
To open a corporate bank account, file taxes, bid for contracts, and access many government and financial services.

Related CAC guides

Register a company · Annual returns · Corporate account · All CAC guides

Reviewed: 22 Sept 2026 · Author: Belmadeng Editorial. Independent guide, not affiliated with the CAC, and not legal advice. Fees and processes change — always confirm on the official CAC portal.