How to file an income tax
return in Pakistan in 2026
A step-by-step walkthrough of filing your Pakistani income tax return through IRIS in 2026: who must file, what documents you need, the deadline, and what late filing costs.
Filing an income tax return in Pakistan is a self-assessment exercise. The Federal Board of Revenue does not calculate your liability for you; you declare income, claim credits, and file through the IRIS portal. This guide sets out the sequence for the 2026 filing season.
Who is required to file
The obligation is triggered by circumstance, not only by income level. You are generally required to file if any of the following apply.
Why filing matters even below the threshold
Filing places you on the Active Taxpayer List. Non-filers face materially higher withholding on banking transactions, vehicle registration and property transfers. For many people the withholding differential over a year exceeds the cost of filing several times over.
Documents to gather first
The filing sequence
Register for a National Tax Number if you do not already hold one; for most individuals the CNIC serves as the NTN once registration is complete. Log in to IRIS, open the return for the correct tax year, and complete the income, deduction and tax credit tabs. Salaried filers also complete a wealth statement reconciling opening wealth, income, expenses and closing wealth.
The wealth statement is where most returns come apart. The reconciliation must balance; an unexplained increase in assets is treated as unexplained income and can be assessed as such. Take the time to trace every material movement.
Deadlines and late filing
For individuals and associations of persons, the statutory due date is 30 September following the end of the tax year on 30 June. Companies with a June year-end file by 31 December. The FBR has extended these dates in several recent years, but an extension is discretionary and announced late. Plan against the statutory date.
Filing after the due date attracts a surcharge and delays restoration of Active Taxpayer List status. Prior-year returns can usually still be filed, and doing so is normally the route back to filer status.