A new law and a new portal make it easy to assume there is a new form to fill in somewhere. For most people, there is not.
The question comes up most from people who registered a TIN years ago and stopped thinking about it, and from people starting their first job or first business right as the changeover happened. Both groups usually land on the same answer.
The short answer
You do not need to apply for a new TIN. Since 1 Jan 2026, the old TIN was replaced by the new Tax ID from 1 Jan 2026, under rules set by the Nigeria Revenue Service (NRS), formerly FIRS, and the replacement is generated automatically from a record you already hold.
Why most people have nothing to fill in
A Tax ID is linked to your NIN if you are a person, or to your CAC registration number if you run a business. If either of those already exists, so does the ability to look up a matching Tax ID.
There is no separate application form for the Tax ID itself. The work is a search, not a registration. Our walkthrough on finding your Tax ID covers the exact steps for both cases.
This is a genuine change from how a TIN used to work. Registering for a TIN meant visiting a tax office or filling in a form the tax authority processed on its own timetable. A Tax ID lookup runs against a record NIMC or the CAC already finished verifying, so there is nothing left for the tax side to approve.
When you might actually need to act
A lookup that returns no result usually points to a gap upstream, not a missing Tax ID application. A NIN that was never completed, or a CAC number that was mistyped somewhere, will stop the match.
In that case, the fix is correcting the underlying NIMC or CAC record first. Once that record is right, the Tax ID lookup at taxid.nrs.gov.ng should return a result on its own.
A newly incorporated business is the other real exception. If the CAC registration only completed this month, give the record a little time to reach the Tax ID system before assuming something has gone wrong.
What happens to your old TIN
Nothing is deleted. Filing history tied to an old TIN sits behind the Tax ID that now matches your NIN or CAC number.
If you are still unclear on how the two numbers differ, Tax ID vs TIN sets it out side by side. For the identity change itself, what is the new Tax ID explains the format and who issues it.
Old paperwork with your TIN printed on it is not worthless either. An accountant reconciling a few years of filings will still want it on hand, even once the Tax ID is what appears on anything new.
If you run more than one business
Each registered business has its own CAC number and, from that, its own Tax ID. Running three companies means three separate lookups, not one Tax ID covering all of them, even where you are the sole director of each.
What to do this week
- Look your Tax ID up rather than assuming you need to register.
- Save the number once the portal returns it.
- If the search fails, check your NIN or CAC details for a mismatch before trying again.
- Ignore any message that asks you to pay to "activate" a Tax ID. The lookup itself does not carry a fee, and the NRS and Rev360 hub has more on the rest of the changeover.