How to File Your Income Tax Return in Pakistan (FBR IRIS Guide)

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Filing an income tax return in Pakistan puts you on the FBR's Active Taxpayer List (ATL) — the single biggest lever over how much withholding tax you pay on everything from your salary to a property purchase to…

Filing an income tax return in Pakistan puts you on the FBR’s Active Taxpayer List (ATL) — the single biggest lever over how much withholding tax you pay on everything from your salary to a property purchase to a mobile phone. This guide walks through who must file, what you need, and how the IRIS portal process works for FY 2026-27 (tax year 2027).

Who must file a return

Under the Income Tax Ordinance 2001, filing is mandatory for anyone whose taxable income exceeds the basic threshold (PKR 600,000 for salaried individuals in FY 2026-27), anyone who owns immovable property above the notified threshold, a motor vehicle, or a National Tax Number, and every registered business, AOP and company regardless of profit. Many people below the mandatory threshold still file voluntarily, purely to get onto the ATL and access lower withholding rates.

Filer vs Active Taxpayer List (ATL)

“Filer” and “on the ATL” are effectively the same thing in everyday use: once your return for the latest tax year is filed and processed, FBR adds you to the published Active Taxpayer List, and every withholding agent — your bank, your employer, a property registrar, the excise department, PTA’s registration process — checks that list before applying tax. Being off it (a “non-filer”) does not just mean a stigma; it means visibly higher rates almost everywhere this site has a calculator for: property purchase tax, rental income tax, vehicle token tax, and freelancer export tax all carry a non-filer premium.

What you need before you start

  • Your CNIC and registered mobile number/email (for IRIS login).
  • Salary certificate or IT-16/IT-17 from your employer, if you’re salaried.
  • Bank statements for the tax year, and any bank certificate showing tax already withheld.
  • Rent receipts and a tenant’s tax deduction certificate, if you earn rental income (see the rental income tax calculator).
  • Records of any property bought or sold in the year, including the FBR/DC valuation used (see the property purchase tax calculator).
  • Foreign remittance/export receipts, if you’re a freelancer or IT exporter (see the freelancer tax calculator), plus your PSEB registration certificate if you hold one.
  • Vehicle registration book(s), for the wealth statement.

Filing through IRIS, step by step

  1. Register or log in. First-time filers register at the FBR IRIS portal using their CNIC; returning filers log in with their existing credentials.
  2. Select the return form for the right tax year. Tax year 2027 covers income from 1 July 2026 to 30 June 2027.
  3. Declare your income under each head that applies: salary, property, business, capital gains, and other sources.
  4. Enter tax already withheld from your salary, bank profit, rent, phone bills, vehicle token, or any other source, using the certificates or statements you collected.
  5. Complete the wealth statement, declaring your assets and liabilities as of the end of the tax year and reconciling the change from the year before.
  6. Review and submit. IRIS calculates your final liability or refund from the figures you entered; pay any balance due through the generated PSID before submitting.

Deadlines and what happens if you’re late

The standard deadline for individuals and AOPs is 30 September following the close of the tax year, and 31 December for companies, though FBR has extended the individual deadline in some recent years — always check the current notification on the IRIS portal rather than assuming the calendar date. Filing late means you are excluded from the ATL until your return is processed, so you pay non-filer withholding rates in the meantime, and a late-filing surcharge and penalty can apply on top of any tax due.

What filing does not do

Filing a return does not itself lower your tax rate on income you have already earned — the salary slabs, Section 154A export rate, Section 155 rent rate and Section 236K property rate are set by law regardless of when you file. What filing changes is your status going forward: once you’re on the ATL, every one of those calculators shows you the lower, filer-side figure instead of the non-filer premium.

Where to go for each type of income

This article explains the general FBR filing process for FY 2026-27 and is not tax or legal advice. Confirm current deadlines and your specific filing obligations with the FBR IRIS portal or a qualified Pakistan tax professional.

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