How to File Your 2026 Tax Returns in Nigeria: A Step-by-Step Guide

If you are a worker, freelancer, business owner, or student earning income in Nigeria, 2026 is not the same as previous years. The Federal Inland Revenue Service (FIRS) has officially been replaced by the Nigeria Revenue Service (NRS), and tax returns are now being filed through a new digital-first system. (NRS Portal Guide)

This guide by Nigeriawide.com explains how to file your 2026 tax returns step-by-step using the new NRS portal, what has changed, and how to avoid penalties.

What Changed in 2026? (Before You File Your Tax Return)

Starting January 1, 2026, Nigeria introduced one of the biggest tax reforms in recent history. The FIRS name has officially changed to the Nigeria Revenue Service (NRS), and the government is moving fully to online filing. (NRS Portal Guide)

Here are the most important changes:

• FIRS is now NRS (Nigeria Revenue Service)
• Your NIN is now your Tax ID for individuals
• Businesses now use their CAC number as a 13-digit tax ID
• Most tax services are now handled through a single digital portal
• Late filing penalties are now much higher than before (NRS Portal Guide)

That means if you still rely on manual filing, you could face serious penalties in 2026.

Who Must File a Tax Return in Nigeria in 2026?

You must file your tax return if you fall into any of these categories:

• Salary earners (even if your employer deducts PAYE)
• Freelancers and online workers (bloggers, designers, traders, YouTubers, etc.)
• Business owners and SMEs
• Students earning online income
• Self-employed professionals (lawyers, consultants, photographers, etc.)

Even if you earn below the new tax-free threshold, you are still required to file a return, especially if you have a Tax ID. (NRS Portal Guide)

Step-by-Step: How to File Your 2026 Tax Returns Using the New NRS Portal

Below is the easiest step-by-step method you can follow.

Step 1: Get Your Tax ID (NIN or CAC Number)

The first thing the NRS portal requires is your tax identification number.

• Individuals: Your NIN is now your tax ID
• Businesses: Your CAC registration number works as your tax ID

This change was introduced to make tax filing faster and reduce duplicate registrations. (NRS Portal Guide)

Step 2: Visit the NRS Portal

Once you have your tax ID:

1. Open the official NRS portal in your browser
2. Click Register / Login
3. Enter your NIN (for individuals) or CAC number (for businesses)
4. Verify your phone number or email
5. Create your password

After registration, you will see your personal tax dashboard.

Recent tax guides confirm that the NRS is pushing Nigerians to use a single digital platform for all tax returns in 2026. (NRS Portal Guide)

Step 3: Choose the Type of Tax Return You Want to File

Inside the dashboard, you will see different options such as:

• Personal Income Tax (PIT)
• Company Income Tax (CIT)
• VAT Returns
• Withholding Tax (WHT)
• Tax Clearance Certificate (TCC)

Most individuals should select Personal Income Tax (PIT).

Step 4: Enter Your Income Details

You will now be asked to enter:

• Your total income for 2025
• Salary or freelance income
• Business income (if any)
• Rent paid (for tax relief)
• Pension deductions
• Other allowable expenses

The 2026 system uses updated tax rules, including a higher tax-free income threshold and new deductions. (NRS Portal Guide)

Step 5: Upload Supporting Documents

The portal may ask you to upload:

• Salary slips
• Bank statements
• Business receipts
• Pension contribution proof
• CAC certificate (for businesses)

This step helps prevent penalties and makes it easier to get a Tax Clearance Certificate later.

Step 6: Review and Submit Your Tax Return

Before submitting:

• Double-check your income
• Confirm your deductions
• Make sure your name and NIN are correct

Once you click Submit, your return is officially filed.

Step 7: Pay Your Tax (If Applicable)

If you owe tax, the portal will automatically calculate the amount you need to pay.

You can pay using:

• Debit card
• Online bank transfer
• Internet banking

Some tools also help estimate how much tax you may owe before filing. (NRS Portal Guide)

2026 Tax Filing Deadline in Nigeria

According to recent tax updates, these deadlines are very important:

• March 31, 2026 – Personal income tax returns deadline
• June 30, 2026 – Company income tax deadline
• Monthly – VAT and withholding tax must be filed by the 21st of every month (NRS Portal Guide)

Missing these deadlines can result in heavy penalties under the new tax law.

Benefits of Filing Your Tax Return Early in 2026

If you file early, you can:

• Avoid late-filing penalties
• Get your Tax Clearance Certificate faster
• Avoid account restrictions
• Stay compliant with the new tax system
• Improve your chances of getting loans or government contracts

Common Mistakes Nigerians Must Avoid in 2026

Many taxpayers make these mistakes every year:

• Waiting until the deadline
• Using the wrong tax ID
• Not declaring freelance income
• Filing manually instead of using the portal
• Ignoring monthly VAT or WHT returns

Because penalties are now stricter, avoiding these mistakes can save you a lot of money.

Final Thoughts

Filing your tax return in Nigeria in 2026 is now easier — but also more serious. The new NRS portal is designed to make everything digital, faster, and more transparent. (NRS Portal Guide)

Whether you are a student earning online, a freelancer, or a business owner, the best thing you can do right now is register on the new portal and file your return early.