The Federal Inland Revenue Service (FIRS) is the agency responsible for assessing, collecting, and accounting for all taxes, levies, and dues payable to the Federal Government of Nigeria. FIRS is not simply a revenue authority; it is one of the most consequential institutions in Nigeria’s public finance architecture. Every naira the federal government spends on infrastructure, healthcare, education, and public services is funded by tax revenue, and the FIRS is the institution that generates that revenue.

Under the leadership of Executive Chairman Zacch Adedeji, PhD, FIRS has undergone significant modernization of digital tax filing through the TaxPro-Max platform, expanded data integration, nationwide revenue growth, and a reform-focused culture that rewards analytical thinking and professional excellence. This comprehensive guide covers what FIRS does, the current portal status, available positions across entry and management tiers, full eligibility requirements, salary expectations, a step-by-step application process, the full selection sequence, and preparation tips.

About the Federal Inland Revenue Service

The Federal Inland Revenue Service traces its origins to 1943, when the Inland Revenue Department of British West Africa was established to manage colonial tax collection. After independence, the Board of Inland Revenue was set up in 1958 under Nigerian governance. It was not until 2007, under the FIRS Establishment Act No. 13, that the service gained full operational autonomy as a standalone federal agency with its own governance structure and funding mechanism.

Today, FIRS administers one of the largest tax portfolios on the African continent. Its FIRS Board includes representatives from all six geopolitical zones of Nigeria, the Central Bank of Nigeria, the Ministry of Finance, the Corporate Affairs Commission, the National Planning Commission, the Nigeria Customs Service, and the Office of the Attorney-General, making it one of the most institutionally well-supported federal agencies in the country.

Taxes and Levies Administered by FIRS

• Company Income Tax (CIT): Levied on the profits of incorporated companies operating in Nigeria
• Value Added Tax (VAT): Collected on goods and services across Nigeria’s formal and informal economy
• Petroleum Profits Tax (PPT): Levied on profits from oil and gas exploration and production
• Capital Gains Tax (CGT): Collected on profits from asset disposals, including property, shares, and investments
• Withholding Tax (WHT): Deducted at source on dividends, rents, royalties, and professional fees
• Stamp Duties: Administered on legal instruments, contracts, and financial transactions
• Tertiary Education Tax (TET): Levied on company profits to fund tertiary education
• Personal Income Tax (PIT): For FCT residents and members of the armed forces

FIRS’s Expanded Mandate

• Tax law enforcement: Investigating evasion, prosecuting offenders, imposing penalties, and executing legal instruments
• Policy advocacy: Making legislative recommendations to the National Assembly and the Ministry of Finance
• Taxpayer education: Running systematic outreach campaigns, workshops, and digital platforms to improve voluntary compliance
• Digital tax administration: Deploying TaxPro-Max for online filing and payment, expanding data analytics, and integrating third-party data sources

Is the FIRS Recruitment Form Out for 2026/2027?

As of the time of this publication, the 2026/2027 FIRS recruitment portal at careers.firs.gov.ng is active and is regularly updated with new vacancies as they are approved. FIRS has adopted a pattern of two recruitment phases per year:

• Phase 1 (Entry Level): Tax Officer (Officer II and Officer I) positions typically target young graduates who have completed NYSC
• Phase 2 (Management Level): Assistant Manager, Deputy Manager, Senior Manager, and Assistant Director roles for experienced professionals in tax audit, investigation, risk management, legal, public relations, ICT, cybersecurity, and AI management

Available Positions FIRS Recruitment 2026/2027

FIRS recruits across two distinct tiers. The specific positions for the 2026/2027 cycle will be published in the official recruitment notice. Based on recent recruitment patterns:

Tier 1: Entry Level Tax Officer II and Tax Officer I

These are the standard graduate entry positions at FIRS where most new recruits begin their tax administration careers. Tax Officers work in frontline revenue collection, taxpayer education, audit support, and enforcement activities across FIRS’s state offices nationwide.

• Age limit: Must be 27 years or below by 31 December of the application year. This is a strict upper limit, not a guideline
• Degree requirement: Bachelor’s Degree or HND from an accredited institution, minimum Second Class Lower (degree) or Lower Credit (HND)
• NYSC: Discharge Certificate or Exemption Letter is mandatory; you must have completed NYSC by December 31 of the application year
• Posting: Must be willing to work in any FIRS business location across Nigeria, not just your preferred state
• Skills: Strong analytical, problem-solving, and communication skills, basic computer proficiency mandatory

Tier 2: Mid-Level Management Assistant Manager and Deputy Manager

Mid-level management positions require both academic qualifications and relevant professional experience. These roles lead teams, manage complex tax investigations, oversee risk management, and handle legal and communications responsibilities at the district and state office levels.

Departments that recruited at this level in recent exercises:

• Tax Investigation: Detecting and prosecuting tax evasion and fraud
• PRS Research: Tax policy research and economic analysis
• Public Relations: Managing FIRS’s public communications and taxpayer engagement
• ICT Cybersecurity: Protecting FIRS’s digital infrastructure and tax databases from cyber threats
• ICT AI Management: Overseeing the agency’s artificial intelligence and automation systems
• PRS Risk Management: Identifying and managing compliance risk across Nigeria’s tax base
• Legal: Handling tax litigation, legal advisory, and regulatory enforcement matters

Requirements: Bachelor’s Degree or HND with minimum Second Class Lower or Lower Credit; relevant professional certification (ICAN/ANAN for accounting, BL for legal, relevant cybersecurity certifications for ICT); minimum three to five years of relevant professional experience; NYSC Discharge Certificate or Exemption Letter.

Tier 3: Senior Management, Senior Manager, and Assistant Director

Senior management positions are for seasoned professionals with significant experience in tax administration, audit, or their specialist field. Requirements: Degree or HND with minimum Second Class Lower or Lower Credit; professional qualification often mandatory (ICAN Fellowship, FCA, BL, or advanced certification); seven or more years of progressively responsible experience; demonstrated leadership and track record of managing complex projects.

Other Positions Across FIRS

In addition to the tax officer and management roles, FIRS recruits for:

• Accountants and Finance Officers: Internal financial operations, budgets, and reporting
• Data Analysts and Statisticians: Evidence-based tax policy and compliance analysis
• ICT Officers: Managing FIRS digital platforms, database systems, and cybersecurity infrastructure
• Economists and Policy Research Officers: Tax policy development and reform advocacy
• Human Resources Officers: Staff recruitment, development, and welfare
• Communications and Public Affairs Officers: Taxpayer education and media engagement
• Administrative Officers: Operational and logistical support across FIRS offices nationwide

Eligibility Requirements for FIRS Recruitment 2026/2027

The following requirements apply to all FIRS recruitment categories. Always verify the specific criteria for your target role in the official recruitment notice when it is published.

Citizenship and Identity

• Must be a Nigerian citizen
• Must hold a valid government-issued means of identification: International Passport, National ID Card (NIN-linked), Driver’s License, or Voter’s Card

Age

• Entry-level Tax Officer positions: 27 years or below by 31 December of the application year, strict upper limit
• Mid-to-senior management positions: Higher or no explicit age limit, experience matters more than age at the management level

Educational Qualifications

• Entry-level (Tax Officer): Bachelor’s Degree or HND from an accredited institution, minimum Second Class Lower (degree) or Lower Credit (HND)
• O-Level: Minimum five (5) credit passes in WASSCE, NECO, GCE, or NABTEB, including English Language and Mathematics, in not more than two sittings
• NYSC: Valid Discharge Certificate, Exemption Certificate, or Exclusion Letter is mandatory for all graduate applicants, one of the most strictly verified requirements
• Academic performance: A minimum of Second Class Lower (degree) or Lower Credit (HND) is typically required. First Class and Second Class Upper degrees are strongly preferred for competitive roles

Professional Certifications

While not universally mandatory, professional certifications significantly strengthen applications for specialist roles and are often required for management-level positions:

• ICAN (Institute of Chartered Accountants of Nigeria): For accounting and finance roles
• CITN (Chartered Institute of Taxation of Nigeria): For tax officer and tax specialist positions
• ANAN (Association of National Accountants of Nigeria): Alternative accounting credential
• NBA / BL (Nigerian Bar Association / Barrister at Law): For legal officer positions
• COREN: For engineering-related roles
• Cybersecurity certifications: NITDA-recognized or internationally recognized certs (CISSP, CISM, etc.) for ICT/cybersecurity positions

Skills and Character

• Computer proficiency: Microsoft Word, Excel, PowerPoint, and web applications are mandatory baseline requirements. FIRS operates entirely on digital systems
• Tax law knowledge: A good understanding of Nigerian tax laws is a specific advantage for tax officer positions
• Analytical and communication skills: Strong problem-solving, numerical reasoning, and communication skills across all roles
• No criminal record: Clean background, no pending investigations or felony convictions
• Medical fitness: Physically and mentally fit confirmed by medical examination at the appointment stage
• Willingness to relocate: Must be willing to be posted to any FIRS business location in Nigeria
• Single application: Only ONE application per candidate per exercise; multiple submissions result in automatic disqualification

Documents to Prepare Before Applying

Prepare all of the following before the portal opens. Incomplete or missing documents are a primary cause of application rejection at the automated screening stage:

Step-by-Step Application Guide

When the official FIRS recruitment portal is activated at careers.firs.gov.ng, follow this process precisely. Do not apply through any other platform.

1.     Confirm the official announcement at https://ecitizen.firs.gov.ng/en/login before taking any action. Monitor FIRS’s verified X (Twitter) and LinkedIn accounts. FIRS typically announces new exercises on X first.

2.     Read the full recruitment notice before beginning. Pay close attention to specific roles available, qualification requirements, document upload formats, and the application deadline.

3.     Visit careers.firs.gov.ng This is the only legitimate FIRS recruitment portal. Do not apply through any other website or pay anyone claiming to process your application.

4.     Browse the listed vacancies carefully. Each vacancy has a position title, department, role description, and eligibility requirements. Read each description fully before deciding. The discipline relevance of your degree matters significantly; a Law graduate applying for Legal Officer is far more competitive than a general applicant.

5.     Create your candidate account using a valid, active email address and a phone number you check regularly. Use a professional email address (not slang usernames). Save your login credentials immediately and verify your email address.

6.     Select your target role and confirm all requirements are met before completing the form.

7.     Complete the application form accurately. Your name must match exactly what appears on your NIN and academic certificates. Enter qualifications, professional certifications, work experience, and personal details without error or embellishment.

8.     Upload all required documents in the correct fields. Confirm each upload is clear and fully legible before proceeding. Your CV should be tailored specifically to the position, not a generic document.

9.     Review your entire application from the beginning before submitting. Check name spellings, qualification details, position selection, and upload quality. Most portals do not permit corrections after submission.

10.  Submit and save your confirmation reference number immediately. Print your acknowledgment slip and store at least two copies safely with your document folder.

The FIRS Selection Process: What Happens After You Apply

Stage 1: Automated Application Screening

FIRS reviews all submitted applications electronically. Applications with missing documents, incomplete fields, failed eligibility checks, incorrect age, missing NYSC certificate, unaccredited degree, or incorrect qualification level are rejected before any human reviewer sees them. This automated screening is thorough and fast. Completeness and accuracy at submission are everything.

Stage 2: Shortlisting

Eligible applications are shortlisted based on academic qualification, discipline relevance, academic performance, professional certifications, and geographic distribution to ensure representation across Nigeria’s geopolitical zones. Shortlisted candidates receive notifications by email and SMS. FIRS tends to move through shortlisting fairly quickly compared to other federal agencies.

Stage 3: Computer-Based Test (CBT)

Shortlisted candidates sit a Computer-Based Test (CBT). For entry-level Tax Officer positions, the CBT covers verbal reasoning, numerical aptitude, general knowledge, current affairs, and a section on basic tax knowledge, including the types of taxes FIRS administers, the FIRS Establishment Act, and general financial literacy. For mid-to-senior positions, the CBT includes profession-specific questions relevant to the role. The CBT is the most critical filtering stage that requires thorough preparation.

CBT preparation: Study Nigerian tax law fundamentals, Company Income Tax, VAT, PAYE, and PPT provisions under the relevant Acts. Practice verbal and numerical reasoning under timed conditions for four to six weeks before your test. For ICT roles, review digital systems management and cybersecurity principles.

Stage 4: Panel Interview

Candidates who pass the CBT are invited for a structured panel interview, typically conducted by senior FIRS officers from the relevant department. Expect questions about your understanding of tax administration in Nigeria, knowledge of the FIRS mandate, professional experience, and how your qualifications add value to the specific role. Research FIRS’s recent initiatives before your interview, the TaxPro-Max digital filing platform, the Taxpayer Identification Number (TIN) expansion, the Joint Tax Board, and FIRS’s current strategic plan under Zacch Adedeji.

Stage 5: Document Verification

All certificates and credentials are physically verified against official databases. Unaccredited degrees are identified and rejected at this stage. Professional certifications are verified against the relevant regulatory body’s records. ICAN verifies accountants, NBA verifies lawyers, COREN verifies engineers. Any discrepancy between submitted documents and verified records leads to immediate disqualification.

Stage 6: Medical Examination

Fitness for the demands of the specific role is confirmed by a medical examination. Candidates must be physically and mentally fit and free from drug use.

Stage 7: Appointment and Induction

Successful candidates receive employment letters and are inducted through an orientation program covering FIRS operational procedures, tax laws, agency culture, and role-specific training. Entry-level recruits typically undergo several weeks of structured training before their first posting.

How to Prepare for FIRS Recruitment

• Study Nigerian tax law: Company Income Tax Act, VAT Act, PAYE, Petroleum Profits Tax, and the FIRS Establishment Act. Candidates who can articulate how specific tax laws work consistently outperform those with only general awareness.
• Understand the FIRS mandate: Read the FIRS Establishment Act, the agency’s current strategic plan, and the TaxPro-Max platform overview. Know what FIRS does, how it is governed, and its current reform priorities.
• Practice CBT-style questions: Verbal reasoning, numerical aptitude, general knowledge, and current affairs. Use past FIRS and other federal agency aptitude test resources. Practice under timed conditions.
• Prepare a disciplined CV: Tailor your CV to the specific role. Highlight qualifications, certifications, and experience most relevant to the position. Do not submit a generic document.
• Secure your professional certifications: If you are in accounting or finance and do not yet have ICAN or CITN, begin the process now. These certifications significantly boost competitiveness.
• Gather documents early: Do not wait for the portal to open. Have all certificates, NIN, NYSC documents, state of origin certificate, and passport photographs ready before registration begins.
• Research interview topics: Study the Joint Tax Board, FIRS’s relationship with state revenue services, the TaxPro-Max digital platform, the TIN expansion program, and Nigeria’s current tax reform agenda.
• Apply for one position only: Select the single role that best matches your qualifications and experience. Multiple applications are prohibited and result in disqualification from all of them.