FIRS Salary Structure 2025: Grades, Ranks & Monthly Pay: The Federal Inland Revenue Service (FIRS) is one of the most attractive government agencies in Nigeria when it comes to salary and allowances. In this 2025 update, we break down the full FIRS salary structure, including ranks, levels, and how much each cadre earns monthly.

Whether you’re applying for a job or just researching public sector pay, this guide has the full breakdown.

Contents

1 FIRS Ranks and Grade Levels
2 FIRS Salary Structure (Monthly Estimates in 2025)
3 Additional Benefits and Allowances
4 How to Work at FIRS in 2025
5 Related

FIRS Ranks and Grade Levels

FIRS follows the CONRAISS (Consolidated Revenue and Internal Service Structure), similar to most government revenue agencies. Below is a general structure of their ranks and grade levels:

FIRS Rank / Level	Equivalent GL	Common Job Titles
Graduate Assistant	GL 08	Entry-level for graduates
Revenue Officer I	GL 09	After 1–2 years of service
Revenue Officer II	GL 10	Mid-level
Senior Revenue Officer	GL 12	Supervisor/Team Lead
Principal Revenue Officer	GL 13	Department Lead
Assistant Director	GL 14	Managerial Level
Deputy Director	GL 15	Senior Management
Director	GL 16–17	Executive Management

Note: Promotion depends on years of service, exams, and availability of positions.

FIRS Salary Structure (Monthly Estimates in 2025)

Grade Level / Rank	Estimated Monthly Salary (₦)
GL 08 – Graduate Assistant	₦170,000 – ₦200,000
GL 09 – Revenue Officer I	₦210,000 – ₦250,000
GL 10 – Revenue Officer II	₦260,000 – ₦300,000
GL 12 – Senior Officer	₦310,000 – ₦360,000
GL 13 – Principal Officer	₦370,000 – ₦450,000
GL 14 – Assistant Director	₦500,000 – ₦600,000
GL 15 – Deputy Director	₦650,000 – ₦750,000
GL 16/17 – Director	₦800,000 – ₦1,000,000