How can a civil servant file personal income tax with FIRS in Nigeria?

Filing tax as a civil servant in Nigeria is usually simpler than for business owners, because your employer already deducts most of your tax through PAYE (Pay As You Earn). But you still need to understand how it works and when you may need to take action yourself.
1. Understand How Your Tax Is Handled
As a civil servant:
Your employer (government ministry/agency) deducts tax monthly under PAYE
This is regulated by the Federal Inland Revenue Service (FIRS) or your State Internal Revenue Service
The tax is based on the Personal Income Tax Act (PITA)
So in most cases, your tax is already being filed on your behalf
2. When You Still Need to File Yourself
Even as a civil servant, you should file tax returns if:
You have additional income (side business, freelancing, investments)
You want tax clearance certificate (TCC) for:
Loans
Contracts
Visa applications
You suspect wrong deductions from your salary
Your employer is not remitting your tax properly
3. How to File Tax (Step-by-Step)
Step 1: Get Your Tax Details
Ask your employer for:
Annual tax statement (PAYE record)
Total salary earned in the year
Total tax deducted
Step 2: Register with Tax Authority (if not already)
Depending on your state (e.g. Rivers State):
Visit your State Internal Revenue Service office
Or use their online portal (if available)
You will get a Tax Identification Number (TIN)
Step 3: Prepare Your Income Summary
Include:
Salary (basic, allowances, bonuses)
Other income (if any)
Apply reliefs like:
Consolidated Relief Allowance (CRA)
Pension contributions
NHF, NHIS, etc.
Step 4: Submit Your Tax Return
You can file:
Option A: Through your employer (most common)
Government payroll usually handles submission
Option B: By yourself
Visit tax office or file online
Submit:
Completed tax return form
Evidence of income
PAYE deductions
Step 5: Request Tax Clearance Certificate (TCC)
After filing:
Apply for TCC
It shows you have paid your taxes properly
4. Important Deadlines
Annual tax return deadline: March 31 of the following year
Example: 2025 income → file before March 31, 2026
5. Common Mistakes to Avoid
Assuming PAYE = everything (it may not cover side income)
Not collecting your TCC
Ignoring errors in deductions
Not verifying remittance by employer
6. Practical Advice for You
Since you’re a civil servant:
First confirm: Is your PAYE properly deducted and remitted?
Then:
Request your annual tax summary
Apply for TCC yearly (very important for future financial moves)