How to File Income Tax Return Online — IRIS Portal
What this means for your money
Pakistan's tax system has a reputation for complexity, but the parts that affect most individuals are surprisingly straightforward. If you're salaried: your employer deducts tax monthly, you file an annual return to reconcile, and filing makes you a "filer" which halves your withholding tax on bank transactions, vehicle purchases, and property deals. The return itself takes 30-60 minutes on IRIS or Tax Asaan once you've gathered your salary certificate, bank statements, and WHT certificates. The payoff — thousands saved annually in reduced WHT — makes it the highest-ROI hour most Pakistanis can spend.
The filer vs non-filer distinction is the single most impactful tax decision for middle-class Pakistanis. A non-filer buying a Rs. 5 million car pays Rs. 50,000 in WHT; a filer pays Rs. 25,000. A non-filer purchasing Rs. 10 million property pays Rs. 300,000 in WHT; a filer pays Rs. 150,000. Over a lifetime of vehicle purchases, property transactions, and regular banking, the cumulative cost of not filing easily exceeds Rs. 500,000-1,000,000. Filing one 30-minute return per year prevents all of this.
File at iris.fbr.gov.pk before September 30 each year. Need: NTN/CNIC, salary certificate, bank statements, WHT certificates. Filing makes you a filer on the ATL.
Related: file tax return, become filer, tax calculator.
Tax Return Filing — Timeline and Deadlines
| Deadline | What | Who | Penalty for Missing |
|---|---|---|---|
| September 30 | Income tax return for salaried individuals | All salaried with income >Rs. 600K | 2% of tax/month + ATL removal |
| September 30 | Income tax return for business/freelance | All business/self-employed | Same penalties |
| December 31 | Wealth statement | Anyone filing a return | Return treated as incomplete |
| Monthly (18th) | Sales tax return | Registered sales tax businesses | Rs. 5,000-25,000 per month late |
| Monthly | Withholding tax deposit | Employers/withholding agents | 2% of undeposited amount/month |
Register on IRIS: portal guide. Become a filer: ATL guide. Calculate tax: income tax calculator. Tax deductions: allowed deductions. Late filing: penalty consequences.
What you need before starting: CNIC (for NTN/login), salary certificate or income records for the tax year (July-June), bank statements for ALL accounts, withholding tax certificates (from bank, employer, or any source that deducted WHT), property details (if any), and investment records (mutual funds, stocks, savings certificates). Gather everything before opening IRIS — the portal times out, and losing a half-completed return is frustrating.
First-time filer tip: If you've never filed before, the first return takes 1-2 hours because you're learning the IRIS interface. Subsequent years take 20-40 minutes. Consider using the Tax Asaan app (app guide) for your first filing — it's simpler than the IRIS website and walks you through each section step by step.
The single most impactful tax action for most Pakistanis is simply filing — not optimizing deductions or restructuring income, just filing one annual return. The math is stark: a non-filer pays roughly double the withholding tax on every bank transaction, vehicle purchase, and property deal compared to a filer. For a typical middle-class professional, this difference accumulates to Rs. 30,000-80,000 per year in unnecessary tax. Over a 20-year career, that represents Rs. 600,000-1,600,000 wasted — enough for a car, a solar system, or a significant portion of a house down payment. Filing the return takes 30-90 minutes annually on IRIS or Tax Asaan. The ROI of that single hour of effort is among the highest financial returns available to any Pakistani citizen.
Always verify current requirements. Fees, timelines, and document requirements can change without advance notice. Check the relevant official website or call the office before your visit to confirm the latest requirements.