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The NRS Portal Landscape — A 2026 Reference for Nigerian Taxpayers

This article lives at /tax/firs-portal/ because the slug predates the NTAA 2026 reform. The substantive content covers the current Nigeria Revenue Service portal landscape end to end, names which portal does what during the transition, and lists every URL worth bookmarking.

Written by NigeriaHowTo Editorial TeamEdited by Nikita Bystrykh, Founder & PublisherChecked against official sourcesUpdated September 2026Last reviewed 3 September 202613 min read

Why this article is at /tax/firs-portal/ when FIRS has been renamed

This URL was set before the Nigeria Revenue Service (Establishment) Act 2025 took effect on 1 January 2026, when FIRS was still the institutional name. The substantive content below covers the current Nigeria Revenue Service portal landscape end to end. The URL is honoured as a stable identifier because changing it would break inbound links, bookmarks, and search-engine indexing that already point readers here.

The legacy FIRS domain at firs.gov.ng itself takes the same transition-honesty approach — it now redirects to the NRS landing page rather than being retired. Most pre-2026 sources still reference the FIRS name; readers will find the institution referenced both ways through 2026 and likely beyond. Where this article uses NRS, the same institution under its current statutory name is meant.

This article serves a mixed audience — any taxpayer (individual or entity) working through the federal portal landscape during the NTAA 2026 transition. It is the cluster's architecture-reference page. Cross-links from every other Tax article point here when a portal-routing question arises. Readers looking for state-IRS portals (LIRS, FCT-IRS, OYIRS, and the others) will find them at the state tax offices reference — a parallel reference for the state-level institutional layer.

The NTAA 2026 reform — institutional context for the portal landscape

The Nigeria Tax Act 2025 and the Nigeria Tax Administration Act 2025, signed on 26 June 2025 and effective from 1 January 2026, consolidated Nigerian federal tax administration into a unified procedural framework. The reform package included two institutional Establishment Acts that renamed the federal agencies and reshaped the portal landscape.

The Nigeria Tax Administration Act (NTAA) and the Nigeria Tax Act, signed in 2025 and effective 1 January 2026, consolidate Nigerian federal tax administration into a unified procedural framework. Under the NTAA the CAC registration number itself may serve as the Tax Identification Number for entities, and the National Identification Number (NIN) may serve as the TIN for individuals — a single identifier-stack across the registry and the revenue authority. The Joint Tax Board (JTB) was renamed the Joint Revenue Board (JRB) effective 1 January 2026 under the Joint Revenue Board (Establishment) Act 2025, one of the tax reform bills passed alongside the NTAA. The Federal Inland Revenue Service is being restructured as the Nigeria Revenue Service under the Nigeria Revenue Service (Establishment) Act 2025. Current sources use both names (FIRS and Nigeria Revenue Service; JTB and JRB) during the transition; the underlying integration with CAC remains the auto-TIN-on-certificate flow established in June 2020.

The substantive portal-level consequences of the reform package:

  • The Federal Inland Revenue Service was restructured as the Nigeria Revenue Service under the Nigeria Revenue Service (Establishment) Act 2025. Same institution, new name. The historic firs.gov.ng domain redirects to nrs.gov.ng; the new institutional landing page is the canonical source for NRS notices, policy publications, and the sub-portal index.
  • The Joint Tax Board was renamed the Joint Revenue Board under the Joint Revenue Board (Establishment) Act 2025, with a widened statutory mandate covering the harmonisation of federal-state revenue administration. The historic jtb.gov.ng domain currently displays JRB branding while the agency operates under the new name.
  • A central Tax ID portal at taxid.nrs.gov.ng went live on 1 January 2026 with a JRB mirror at taxid.jrb.gov.ng — the front end where the NIN-as-TIN flow for individuals and the CAC-number-as-TIN flow for entities are operationalised.
  • The NRS Rev360 self-service platform replaced the legacy FIRS TaxProMax on 30 April 2026 as the next-generation portal for registration, filing, payment, and compliance. Existing TaxProMax accounts were migrated automatically; the substantive infrastructure moved to Rev360.

The portal landscape now spans three institutional domains (NRS / JRB / legacy FIRS-as-redirect) and roughly seven active sub-portals plus the Remita federal payment gateway. The reader's task is to know which sub-portal carries which function — this article maps each one.

The three actors behind the portal landscape

The portal landscape sits within the cluster's three-actor architecture. Naming the actors first makes the function-to-portal mapping below intuitive.

Three actors own different parts of the Nigerian tax framework, and the actor that holds a given record depends on the tax type rather than on the customer-facing channel. The Nigeria Revenue Service (NRS, formerly the Federal Inland Revenue Service / FIRS, renamed under the Nigeria Revenue Service (Establishment) Act 2025 effective 1 January 2026) is the federal revenue authority — it administers Companies Income Tax (CIT), Value Added Tax (VAT), Withholding Tax (WHT), Petroleum Profits Tax, Capital Gains Tax for companies, Stamp Duty (on company instruments), and the non-resident tax regime. The State Internal Revenue Service of each of the 36 states and the FCT Internal Revenue Service (LIRS for Lagos, FCT-IRS, OYIRS, RIRS, KIRS, and the 33 other state IRSes) administer Personal Income Tax (PIT) including Pay-As-You-Earn (PAYE) for resident individuals in their jurisdiction. The Joint Revenue Board (JRB, formerly the Joint Tax Board / JTB, renamed under the Joint Revenue Board (Establishment) Act 2025 effective 1 January 2026) is the coordination layer — it harmonises federal-state revenue administration, resolves jurisdictional disputes, and operates the central Tax ID infrastructure at taxid.nrs.gov.ng and the JRB mirror at taxid.jrb.gov.ng. The Taxpayer (individual or entity) is the doer. Unlike the BVN architecture where the customer's bank is always the customer-facing counter, the Tax architecture splits the customer-facing channel by tax type: an individual's PAYE query goes to the State IRS; a company's CIT or VAT query goes to NRS; a Tax ID lookup goes through the JRB-coordinated portal.

For the portal landscape specifically:

  • NRS portals are the substantive operational layer for federal taxes — CIT, VAT, WHT, capital gains for companies, stamp duty on instruments, and the non-resident regime. The Rev360 self-service platform is the front end.
  • JRB portals are the coordination layer for cross-jurisdiction tax administration — the Tax ID mirror, the federal-state harmonisation notices, the historic JTB landing. The JRB does not run the operational tax-filing flows; that's NRS's domain.
  • State IRS portals (covered in the partner reference at state tax offices) are the state-level operational layer for PIT including PAYE — separate institutional infrastructure outside this article's scope but flagged here for cross-reference.

The architecturally-pure naming convention is to use NRS for federal tax operations, JRB for inter-jurisdictional coordination references, and the state IRS name for state-level tax operations. The reader landing on a portal that has the wrong scope for the question being asked should re-route rather than push forward; the support channels at the wrong-scope portal will redirect anyway.

The portal landscape, one URL at a time

The portal-by-portal index. Each entry names the URL, the function, the audience, and the legacy/current naming context.

DocumentDetails

The reader's compass for picking the right portal: identify the function first (Tax ID lookup vs filing vs payment vs verification vs institutional research), then route to the portal that handles that function. The function-to-portal mapping is one-to-one for most use cases; the exceptions (Tax ID lookup at the NRS portal vs JRB mirror; legacy FIRS redirect) are flagged in the index above.

Portal availability is in flux during the Rev360 transition; check the NRS landing page at nrs.gov.ng for the current routing if a sub-portal returns a 404 or an unexpected redirect.

The Tax ID portal — the cluster's gateway credential

The Tax ID portal at taxid.nrs.gov.ng (with the JRB mirror at taxid.jrb.gov.ng) is the gateway portal for the wider Tax cluster. Every other operational surface — Rev360 filings, state IRS PAYE records, bank KYC at Tier 2 and Tier 3, immigration permit renewals — reads against the Tax ID returned by this portal.

From 1 January 2026 the Nigeria Revenue Service issues a 13-digit Tax ID under the Nigeria Tax Administration Act 2025 framework. For an individual, the National Identification Number (NIN) is the lookup key and the underlying identifier — the 11-digit NIN is the substantive credential, and the 13-digit Tax ID is the format the NRS portal returns against the NIN lookup. For an entity registered at the Corporate Affairs Commission, the CAC registration number (RC for companies under Part A, BN for business names under Part C) is the lookup key. Both routes converge at taxid.nrs.gov.ng with a JRB mirror at taxid.jrb.gov.ng. The portal is free; the lookup returns the 13-digit Tax ID within minutes against a clean NIN or CAC lookup. Banks and financial institutions began requiring the 13-digit Tax ID from January 2026 as part of the NTAA 2025 framework's identifier-stack consolidation.

For an individual taxpayer the route is the NIN-as-TIN lookup. Open taxid.nrs.gov.ng, click Individual, select NIN as the lookup key, enter the 11-digit NIN, supply the biographic match (first name, last name, date of birth as held at NIMC), and the portal returns the 13-digit Tax ID. The lookup is free and typically completes in minutes. The full walkthrough lives at how to get a TIN.

For a CAC-registered entity the route is the CAC-number-as-TIN lookup under the Corporate tab. Enter the CAC RC (Part A companies), BN (Part C business names), IT (Part F incorporated trustees), or LP/LLP (Part B partnerships) and the portal returns the 13-digit Tax ID. The entity-side walkthrough lives at TIN for business and at the CAC-side how to get a TIN after CAC registration.

For Tax ID verification the same portal supports a verify-by-Tax-ID flow — re-enter the 13-digit value and the portal returns the linked NIN or CAC record. The verification surface is what a bank's KYC desk, an HR onboarding desk, or a counterparty's procurement office uses to confirm a Tax ID a taxpayer has supplied. The full verification walkthrough lives at how to verify a Nigerian TIN.

The JRB mirror at taxid.jrb.gov.ng provides the same lookup and verification flows against the same underlying database; either portal works. Where the NRS-side URL returns a load error or an unexpected response, the JRB mirror is the routine fallback.

Rev360 — the operational filing platform that replaced TaxProMax

The NRS Rev360 self-service platform at selfservice.nrs.gov.ng is the next-generation operational portal that replaced the legacy FIRS TaxProMax on 30 April 2026. The cutover was the substantive infrastructural step of the NTAA reform — Rev360 is the platform every federal tax filing from May 2026 onward routes through.

The Rev360 platform's surface covers:

  • Taxpayer registration and profile management — the entity's principal contact, bank details, sector classification, registered address.
  • Tax-type registration — adding CIT, VAT, WHT, capital gains, stamp duty, or non-resident-regime registration to the entity's profile.
  • Return filing — CIT annual returns, VAT monthly returns, WHT monthly returns, non-resident filings, and any other federal tax line.
  • Payment via Remita — RRR generation, payment confirmation, payment-history view.
  • Compliance status — TCC eligibility, filing-history view, outstanding-return reminders.
  • Audit and query handling — NRS-side queries land on the Rev360 dashboard and the taxpayer responds through the same surface.

The migration from TaxProMax to Rev360 was automatic for existing TaxProMax account holders — taxpayer profiles, filings, payments, WHT credit notes, balances, and compliance history transferred across. NRS issued migration emails with Rev360 credentials ahead of the cutover. New registrations from 30 April 2026 onward route through Rev360 directly.

Where a taxpayer's TaxProMax credentials no longer work on Rev360 (or the migration email did not arrive), the route is the NRS support channel through Rev360 rather than re-registration. Re-registration creates a duplicate taxpayer record that NRS later has to reconcile; the disciplined route is to recover access to the migrated profile rather than start fresh.

For VAT filing through Rev360 specifically the framework is:

Value Added Tax (VAT) is a consumption tax administered by the Nigeria Revenue Service (NRS, formerly the Federal Inland Revenue Service) under the Value Added Tax Act as updated by the Nigeria Tax Act 2025 and Nigeria Tax Administration Act 2025 effective 1 January 2026. The rate is 7.5% — retained at the pre-reform figure after the legislature pulled back from earlier proposals for a phased increase to 12.5%. A taxable person registers for VAT with the Nigeria Revenue Service through the NRS Rev360 platform (the next-generation portal that replaced the legacy FIRS TaxProMax on 30 April 2026) using the 13-digit Tax ID as the underlying identifier. The Nigeria Tax Administration Act 2025 reframed the small-business carve-out: a business with gross annual turnover of ₦100 million or less and total fixed assets of ₦250 million or less is classified as a small business under Section 147 of the NTAA and is exempt from charging or remitting VAT, with the exception that any business providing professional services does not qualify for the carve-out regardless of size. A business above the small-business threshold (turnover above ₦100 million or assets above ₦250 million, or any size of professional-services business) must register and account for VAT. (Source variance: some practice-firm summaries cite a ₦50 million threshold drawn from the CIT 0%-rate definition in Section 56 of the Nigeria Tax Act 2025 rather than the Section 147 small-business definition; the Section 147 figure is the one the NTAA uses for the VAT carve-out.) The monthly VAT return is due to NRS on or before the 21st day of the month following the transaction month, regardless of whether any taxable activity took place. Output VAT (the 7.5% collected from customers on sales) minus input VAT (the 7.5% paid to suppliers on business purchases) produces the figure remitted; under the Nigeria Tax Act 2025 input VAT is now claimable on all business purchases including services and fixed assets, a significant broadening from the pre-reform input-VAT scope. Selected supplies are zero-rated (food and basic consumables) or exempt (healthcare services, medicines, education services, passenger road transport) under the NTA 2025. E-invoicing through the NRS-deployed fiscalisation platform became mandatory for large taxpayers from 1 November 2025 and for medium and small VAT-registered businesses from 1 January 2026; the universal-coverage rollout completes through 2027 and 2028.

For CIT filing through Rev360 the framework is:

Companies Income Tax (CIT) is the federal corporate income tax administered by the Nigeria Revenue Service (NRS, formerly the Federal Inland Revenue Service / FIRS) under the Companies Income Tax Act as updated by the Nigeria Tax Act 2025 effective 1 January 2026. The post-2026 rate framework distinguishes small companies from large companies. A small company is defined as one with gross annual turnover not exceeding ₦50 million and total fixed assets not exceeding ₦250 million, with the explicit exclusion that businesses providing professional services do not qualify; small companies pay 0% CIT under Section 56 of the Nigeria Tax Act 2025. Large companies — those above the small-company threshold — pay 30% CIT on assessable profits. A Development Levy of 4% of assessable profits applies to medium and large companies (small companies are exempt); the levy consolidates the legacy Tertiary Education Tax (TET), Information Technology Levy, NASENI levy, and Police Trust Fund levy into a single line. Nigerian companies that are members of a multinational group with aggregate group turnover above EUR 750 million, or with annual turnover of ₦50 billion and above, are subject to a minimum effective tax rate of 15% of net income under the Pillar 2 alignment in the Nigeria Tax Act 2025. CIT filing is annual — the return is due six months after the end of the company's accounting year, or eighteen months after incorporation, whichever comes first. For a company with a 31 December year-end, the CIT filing deadline is 30 June of the following year. Filing routes through the NRS Rev360 platform (the next-generation successor to the legacy FIRS TaxProMax), in transition during 2026. Companies must file annually even if dormant or in a loss position. Late-filing penalties under the Companies Income Tax Act are ₦25,000 in the first month of default and ₦5,000 for each subsequent month under the legacy framework, with the Nigeria Tax Act 2025 retaining the penalty structure and adjusting figures by gazette.

The full multi-tax filing-cycle walkthrough lives at how to file a tax return.

Legacy FIRS portals — what still works and what has moved

The legacy FIRS portal landscape continues to operate in a transition mode through 2026 and likely into 2027. The reader encountering a legacy URL in a tax notice, third-party reference, or older bookmark needs to know which legacy URLs still resolve and where they currently point.

  • firs.gov.ng — the legacy FIRS institutional landing. Currently redirects to nrs.gov.ng. Old bookmarks and third-party links continue to resolve through the redirect.
  • taxpromax.firs.gov.ng — the legacy TaxProMax filing platform. Retired as the live filing platform on 30 April 2026 when Rev360 took over. The URL may continue to display for an interim period for historical-reference access; new filings should route through Rev360.
  • TCC-related legacy URLs (tcc.firs.gov.ng and similar) — the legacy e-TCC platform. Transitioning to the Rev360 framework alongside the wider filing infrastructure; the legacy URL may continue to display but the substantive functionality is moving to Rev360. The full TCC walkthrough lives at tax clearance certificate.
  • TIN-verification legacy URLs (apps.firs.gov.ng/tinverification and similar) — the legacy TIN-verification surface from the pre-NTAA framework. The current Tax ID verification surface is at taxid.nrs.gov.ng under the verify-by-Tax-ID flow; the legacy URL may continue to operate during the transition for cross-reference of pre-NTAA 10-digit TINs.

The transition-honesty position is that legacy URLs continue to operate in many cases but the substantive infrastructure has moved. A reader following an older link should expect to land on a current NRS surface (via redirect) or to find the legacy URL still displaying with a notice pointing to the current Rev360 route. Where a legacy URL returns a 404 or an unexpected error, nrs.gov.ng is the route to find the current sub-portal for the function in question.

Remita and the federal payment gateway

Tax payments to NRS route through Remita at remita.net as the federal payment gateway. The flow is consistent across CIT, VAT, WHT, and any other NRS-administered tax.

Tax payments through the Nigeria Revenue Service portal route via Remita against a Remita Retrieval Reference (RRR) generated at the NRS Rev360 platform (the next-generation successor to the legacy FIRS TaxProMax). The typical reconciliation window between bank debit and NRS dashboard confirmation is under one hour for card payments routed through the portal; bank-counter payments using the RRR can take 24 to 48 hours to settle because they pass through the bank's clearing cycle before Remita confirms to NRS. Card payments through the NRS portal typically reconcile faster than bank-counter payments through Remita RRR. State-IRS payments for Personal Income Tax including PAYE route through the state's own Remita configuration and reconcile against the state IRS dashboard on a similar window, though each state IRS publishes its own reconciliation timing. A failed Remita transaction reverses to the originating bank within 7 to 10 working days under Remita's standard auto-reversal protocol. Where the dashboard reads Pending beyond 48 hours, the route is to confirm the RRR status at remita.net first, then raise a support ticket with the relevant authority (NRS for federal taxes; state IRS for PIT and PAYE) before any re-payment attempt.

The operational steps for paying any federal tax:

  • Generate the RRR at Rev360 — at the point of submitting a return or making a stand-alone payment, the Rev360 platform generates a Remita Retrieval Reference (RRR) for the figure due.
  • Choose the payment route at Remita — card payment online (typically reconciles under one hour), bank-counter payment using the RRR (typically reconciles in 24 to 48 hours through the bank's clearing cycle), or mobile-banking app payment using the RRR.
  • Confirm payment at Rev360 — the Rev360 dashboard updates the payment status against the RRR. The receipt is the substantive confirmation.

The institutional three-portal landscape (NRS for federal taxes, CAC for entity registration, NIS for passport and CERPAC) shares the Remita payment infrastructure and the same diagnostic pattern when a payment sticks.

Three institutional payment routes carry Nigerian government-service payments via Remita and produce three distinct diagnostic surfaces when a payment sticks. The Nigeria Revenue Service route handles federal tax payments (CIT, VAT, WHT, capital gains for companies, stamp duty on instruments) and surfaces at the NRS taxid and selfservice portals; the diagnostic queue is at the NRS dashboard against the Tax ID. The Corporate Affairs Commission route handles entity registration and post-incorporation payments and surfaces at the iCRP dashboard (icrp.cac.gov.ng) against the application reference. The Nigeria Immigration Service route handles passport, CERPAC, visa, and similar permit payments and surfaces at immigration.gov.ng against the application reference. State Internal Revenue Services run their own Remita configurations for Personal Income Tax including PAYE — each state IRS portal is the diagnostic surface for PIT-side payments. Each institution holds the reconciliation queue for its own line of business; a tax payment held at NRS cannot be released by CAC and vice versa. The diagnostic discipline is to name the institution holding the queue before any escalation route is chosen.

Where a payment sticks at the Pending status beyond the typical reconciliation window, the diagnostic and recovery sequence lives at tax payment pending — the discipline is to confirm the RRR's true status at remita.net before any re-payment attempt. Re-paying before reading the status risks a double debit that takes 7 to 14 working days to reverse under Remita's standard auto-reversal protocol.

State IRS portals — a different institutional layer

The NRS portal landscape covered above runs the federal tax operations. The 36 State Internal Revenue Services and the FCT Internal Revenue Service run a parallel institutional layer for Personal Income Tax including PAYE. The state-IRS portals are not NRS sub-portals; they are independent institutional infrastructure under the relevant state government or the FCT.

The major state IRS portals at a glance:

  • Lagos State Internal Revenue Service (LIRS) at lirs.gov.ng with the e-Tax filing portal at etax.lirs.net.
  • Federal Capital Territory Internal Revenue Service (FCT-IRS) at fctirs.gov.ng with the tax portal at taxporta.fctirs.gov.ng.
  • Oyo State Board of Internal Revenue (OYIRS) at bir.oyostate.gov.ng with self-service at selfservice.oyostatebir.com.
  • Rivers State Internal Revenue Service (RIRS) at riversbirs.gov.ng operating the RIVTaMIS platform at rivtamis.riversbirs.gov.ng.
  • Kano State Internal Revenue Service (KIRS) at kirs.gov.ng.
  • Kaduna State Internal Revenue Service (KADIRS) at kadirs.kdsg.gov.ng.

State IRS portal maturity varies — LIRS and FCT-IRS operate full e-services (filing, payment, TCC issuance, self-service); some smaller state IRSes operate partly manual workflows still. The full state-IRS reference including the principal-office addresses, the service variance, and the federal-state competency split lives at state tax offices.

The reader's compass for picking between federal NRS portals and state IRS portals: federal taxes (CIT, VAT, WHT, capital gains for companies, non-resident regime) route through NRS Rev360. State taxes (PIT including PAYE) route through the relevant state IRS portal. Tax ID lookup spans both — the same 13-digit Tax ID works at every portal in the landscape.

Frequently asked questions

What is the difference between Rev360 and TaxProMax?

Different generations of the same federal filing platform. TaxProMax was the FIRS-era platform built in the 2010s and operated through 29 April 2026. Rev360 is the next-generation NRS platform built under the NTAA 2026 framework and launched on 30 April 2026. The platforms cover the same substantive functions (taxpayer registration, return filing, payment, compliance) with Rev360 designed for the integrated, taxpayer-centric, real-time-data model that the NRS published as Tax Administration 3.0 — fuller self-service, better data integration across tax types, integrated e-invoicing fiscalisation. Existing TaxProMax accounts migrated automatically; the substantive infrastructure now sits on Rev360.

If I am a Nigerian abroad, can I access these portals from outside Nigeria?

Yes. The NRS portals are publicly accessible from any internet connection without geographic restriction. The Tax ID portal at taxid.nrs.gov.ng works equally well from London, Toronto, Houston, Dubai, or Lagos. The Rev360 self-service platform at selfservice.nrs.gov.ng accepts sign-ins from anywhere; two-factor authentication is the standing access control. Diaspora taxpayers using the portals from abroad should ensure their registered email and phone number are accessible from outside Nigeria for the 2FA codes. The diaspora-side identity infrastructure (NRBVN at nibss-plc.com.ng/nrbvn for the BVN side, NIMC diaspora enrolment for the NIN side) feeds into the same Tax ID once in place.

Why are there so many portals — would it not be simpler to have one?

Function-specific portals separate concerns at the back end and let each function evolve at its own pace. The Tax ID portal needs to be fast, simple, and free for any lookup volume; the filing platform needs to handle complex submissions, document uploads, and audit workflows; the institutional landing page needs to support policy-publication and notice workflows; the payment gateway is a separate piece of infrastructure shared across federal agencies. Consolidating into one portal would either compromise individual functions or create a more brittle system. The cost is reader navigation complexity — the trade-off this article tries to address by mapping each portal to its function.

Are the URLs in this article likely to change again?

The current set is the post-NTAA stable shape, with the Rev360 cutover (30 April 2026) the latest substantive change. The legacy redirects (firs.gov.ng to nrs.gov.ng, jtb.gov.ng on the historic domain) are likely to persist through at least 2026 and 2027. The TaxProMax URL may eventually be fully retired once the migration completes; the Tax ID portal is firmly established at taxid.nrs.gov.ng with the JRB mirror. Any future change would surface as an NRS public notice at nrs.gov.ng — the institutional landing page is the canonical source for current routing. The reader's discipline is to bookmark nrs.gov.ng (and taxid.nrs.gov.ng for the Tax ID lookup) and to navigate to specific sub-portals from there rather than direct-bookmarking sub-portals that may move.

I see references to nrsportal.ng in some search results — is that an official NRS portal?

No. nrsportal.ng is an independent third-party publication that produces guides and commentary on the NRS portals and the wider 2026 tax reform; it is not an official NRS domain. The official NRS landing page is at nrs.gov.ng (note the .gov.ng suffix). The third-party site is a useful secondary reference for unofficial walkthroughs and current-event commentary, but for any operational tax matter the official NRS sub-portals (selfservice.nrs.gov.ng for filings, taxid.nrs.gov.ng for the Tax ID, nrs.gov.ng for institutional notices) are the canonical surfaces. Check the URL suffix when in doubt — .gov.ng is the Nigerian-government namespace.

Portal landscape mapped — what next?

If you want to see how the state-IRS portal layer sits alongside this federal NRS landscape, with the major state-IRS portals named with current URLs and the federal-state competency split walked end to end, the state tax offices reference is the next stop.

Read the state tax offices reference →

Frequently asked questions

Why is this article at /tax/firs-portal/ if FIRS has been renamed?

The URL was created before the Nigeria Revenue Service (Establishment) Act 2025 took effect on 1 January 2026 — when FIRS was still the operative name. The site's URL structure was set at that point and the URL itself is not what readers searching for portal information typically type. The article title and the substantive content cover the NRS-current portal landscape; the URL is honoured as a stable identifier for the page that readers may have bookmarked or had linked to from third-party sites. The legacy FIRS domain at firs.gov.ng itself now redirects to the NRS landing page — a similar transition-honesty approach at the institutional level.

Which portal do I use to file my Companies Income Tax return?

From 30 April 2026 onward, the NRS Rev360 self-service platform at selfservice.nrs.gov.ng is the current filing route for CIT. Existing TaxProMax accounts were migrated automatically — sign in with the credentials NRS issued at migration. New registrations route through Rev360 directly. The legacy FIRS TaxProMax at taxpromax.firs.gov.ng was the route up to 29 April 2026 inclusive; the legacy URL may continue to display but the substantive filing infrastructure has moved to Rev360. The full filing-cycle walkthrough lives at [how to file a tax return](/tax/how-to-file-tax-return/).

Which portal do I use to verify a Tax ID?

The Tax ID portal at taxid.nrs.gov.ng under the verify-by-Tax-ID option. Enter the 13-digit Tax ID and the portal returns the linked NIN or CAC record. The JRB mirror at taxid.jrb.gov.ng is functionally equivalent — both portals run against the same NRS Tax ID database. For an individual whose Tax ID is the NIN-as-TIN format, the lookup is under the Individual tab using NIN as the lookup key; for an entity using the CAC-number-as-TIN format, the lookup is under the Corporate tab. The full TIN-verification walkthrough lives at [how to verify a Nigerian TIN](/tax/how-to-verify-tin/).

My state IRS portal is not on this article — where do I find it?

State IRS portals are covered at the [state tax offices reference](/tax/state-tax-offices/) — that article lists the major state IRSes (LIRS for Lagos, FCT-IRS for FCT, OYIRS for Oyo, RIRS for Rivers, KIRS for Kano, KADIRS for Kaduna, and the equivalent agency for other states) with the current portal URLs and the principal-office address per state. This article focuses on the federal NRS landscape; state IRS portals are a parallel institutional layer covered in the partner reference.

The legacy FIRS domain shows NRS branding — is the historic URL still operational?

Yes. firs.gov.ng currently redirects to the NRS landing page and remains the historic identifier most sources reference. The new institutional URL is nrs.gov.ng — the substantive content lives there. Older bookmarks, third-party links, and tax-correspondence references pointing to firs.gov.ng resolve to the NRS landing through the redirect. The institutional rename does not invalidate prior URLs; the rename redirects them.

I have a TaxProMax account — does it still work after 30 April 2026?

Existing TaxProMax accounts were migrated to the NRS Rev360 platform by 30 April 2026; the same taxpayer profile, filings, payments, WHT credit notes, balances, and compliance history transferred across. NRS issued migration emails with Rev360 credentials to existing TaxProMax account holders ahead of the cutover. Sign in to Rev360 at selfservice.nrs.gov.ng with the credentials NRS sent. Where the migration email did not arrive or the credentials do not work, the route is the NRS support channel through Rev360 rather than re-registration — re-registration creates a duplicate taxpayer record that NRS later has to reconcile.

How does the JRB portal relate to the NRS portal — do I use both?

Different functions; mostly the same data. The JRB (formerly Joint Tax Board, renamed Joint Revenue Board on 1 January 2026) is the federal-state coordination layer that operates the central Tax ID infrastructure jointly with NRS. The Tax ID portal mirror at taxid.jrb.gov.ng provides the same Tax ID lookup as taxid.nrs.gov.ng — either portal works against the same underlying database. The JRB landing at jtb.gov.ng (still on the historic JTB domain at the time of writing, displaying JRB branding) is the institutional page; readers looking for inter-agency policy notices, JRB-published guidelines, or the formal coordination role of the JRB will find them there. For the typical taxpayer the NRS portals are the operational route; the JRB portals are the secondary reference.

I keep landing on Remita when I try to pay a tax — is that the right place?

Yes. Remita at remita.net is the federal payment gateway through which NRS tax payments route. The flow is to generate a Remita Retrieval Reference (RRR) at the NRS portal at the point of submitting a return or making a payment, then complete the payment at Remita (card payment online, or generate the RRR for bank-counter payment). The Remita-NRS reconciliation window is under one hour for card payments and 24 to 48 hours for bank-counter payments. Where a payment shows Pending at the NRS dashboard beyond the reconciliation window, the diagnostic lives at [tax payment pending](/tax/tax-payment-pending/).

Sources

Independent guide, not affiliated with any government agency. The facts, fees and steps above are checked against the primary sources below — government, regulator and agency material first, reputable press second.

  1. 1.Nigeria Revenue Service main portal
  2. 2.Nigerian Tax ID Portal (live from 1 January 2026)
  3. 3.Nigeria Revenue Service Self Service portal
  4. 4.Joint Revenue Board (currently on the historic JTB domain, JRB branding)
  5. 5.JRB Tax ID portal mirror
  6. 6.Legacy FIRS landing (now redirects to NRS)
  7. 7.Legacy FIRS TaxProMax (transitioned to Rev360 on 30 April 2026)
  8. 8.Remita payment gateway
  9. 9.Forvis Mazars on Rev360 as Nigeria's new digital tax platform
  10. 10.Mondaq on Rev360 NRS digital self-service administration system
  11. 11.FCT Internal Revenue Service on the Nigerian Tax ID Portal going live 1 January 2026

Facts verified against the NigeriaHowTo facts registry.

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