FIRS is now NRS: what the Nigeria Revenue Service rebrand means for your business

If you filed a tax return in Nigeria before 2026, you filed it with the FIRS — the Federal Inland Revenue Service. From 1 January 2026 that agency has a new name: the Nigeria Revenue Service (NRS). This isn't a fresh logo on the same building; it is part of the biggest overhaul of Nigerian tax administration in a generation. This guide explains what the FIRS-to-NRS change is, what actually changed for taxpayers, the timeline, and the short list of things your SME should update in practice. For related filing detail, see how to compute PAYE in Nigeria under NTA 2025.

The rebrand at a glance

Sources: Nigeria Revenue Service · Nigeria Revenue Service (Establishment) Act 2025 · KPMG — The Nigeria Revenue Service (Establishment) Act 2025.

1. What the four 2025 acts did

On 26 June 2025, the President signed four tax bills into law, all effective 1 January 2026:

1. Nigeria Tax Act 2025 (NTA 2025) — the substantive law: PAYE brackets, Rent Relief, CIT, Development Levy, VAT, CGT. This is what changed how much tax you pay.
2. Nigeria Tax Administration Act 2025 (NTAA) — the procedural law: filing, penalties, registration, enforcement. This is how you comply.
3. Nigeria Revenue Service (Establishment) Act 2025 — this is the one that created the NRS in place of the FIRS.
4. Joint Revenue Board (Establishment) Act 2025 — coordinates the federal and state revenue authorities.

So the rebrand is not cosmetic. The Nigeria Revenue Service (Establishment) Act 2025 dissolved the FIRS and re-established the national tax authority as the Nigeria Revenue Service, with a mandate to assess, collect and account for revenue accruable to the Federal Government.

2. What actually changed for taxpayers

For a typical SME, the rebrand itself is mostly a change of name and letterhead — but with a few real, practical consequences:

• One consolidated federal revenue agency. The NRS is positioned as the single federal body for national tax administration, which over time is meant to reduce the fragmentation taxpayers dealt with across multiple agencies.
• Your TIN carries over. The Taxpayer Identification Number you used with the FIRS remains your identifier with the NRS. You do not re-register for a new number simply because of the rebrand.
• Filings continue, under new branding. PAYE, VAT and CIT obligations don't pause. Returns are filed to the NRS through its portals; correspondence, notices and receipts now carry the NRS name.
• Portals and web addresses updated. The authority's presence moved to nrs.gov.ng. Bookmark it and update any saved links that pointed at the old FIRS domain.

The key reassurance: the rebrand does not reset your tax history or your TIN. It renames the agency and consolidates its mandate — your obligations continue seamlessly.

3. The timeline

The gap between signing (June 2025) and the effective date (January 2026) was deliberate — it gave the agency and taxpayers roughly six months to redesign systems and run awareness campaigns before the new regime went live.

4. What your SME should update in practice

A short, concrete checklist:

1. Correspondence and templates. Replace "FIRS" with "Nigeria Revenue Service (NRS)" on invoices, remittance schedules, engagement letters and internal SOPs. Legacy documents that say "FIRS" aren't invalid, but new ones should read "NRS".
2. Bookmarks and portal logins. Point staff to nrs.gov.ng. Confirm your filing logins work under the NRS portal.
3. Confirm your TIN. It carries over — but verify it resolves correctly on the NRS system before your first 2026 filing.
4. Software and accountant. Make sure your payroll and accounting tools, and your accountant, are already producing returns under NTA 2025 rules (new PAYE brackets, VAT recovery, Development Levy) and NRS branding.
5. Watch for e-invoicing. The NRS is rolling out electronic invoicing under the Merchant Buyer Solution (MBS) in phases by turnover band. If you're mid-size or larger, this affects you sooner rather than later.

5. Where e-invoicing (MBS) fits in

The rebrand arrives alongside the NRS's push into electronic invoicing, delivered through the Merchant Buyer Solution (MBS). This is a phased, turnover-banded rollout — large taxpayers first, then mid-size businesses — that will eventually require real-time or near-real-time reporting of invoices to the NRS. It is the operational sharp end of the reforms for many companies, and non-compliance carries its own penalties.

If your business turns over enough to be in an early wave, don't wait for the letter. We cover the bands, the timeline and what to prepare in the dedicated guide: Nigeria e-invoicing under the NRS MBS in 2026.

6. Common misunderstandings

1. "It's just a name change." The name changed, but so did the underlying tax law (NTA 2025) and procedure (NTAA 2025). Treating it as cosmetic means missing real rate and compliance changes.
2. "I need a new TIN." You don't. Your existing TIN carries over to the NRS.
3. "FIRS still exists separately." It doesn't. The FIRS was re-established as the NRS; there is one federal revenue authority.
4. "e-invoicing is optional." For businesses inside a rollout band, MBS e-invoicing is mandatory on the NRS schedule, with penalties for non-compliance.
5. "My old filings are void." They aren't. Your history and identifiers carry forward under the NRS.

AnooreHR already speaks NRS: tax computations run on the NTA 2025 rules, filings and reports carry the current agency name, and the profile-pack design means when the NRS updates a rate, a form or an e-invoicing requirement, the change ships as data — not a code rewrite you have to wait for. Whether you're reconciling 2025 periods under the old regime or filing fresh 2026 returns, the right rules apply automatically. Book a demo or sign up free to see your filings prepared under the current NRS framework.

Frequently asked questions

Related: Nigeria e-invoicing under the NRS MBS in 2026 · How to compute PAYE in Nigeria under NTA 2025 · See pricing