This guide covers filing your income tax return on IRIS — selecting the right form, entering all income sources and deductions, and submitting before the annual deadline.

Step 1

Log In to IRIS at the Correct URL

Go to iris.fbr.gov.pk and log in with your CNIC as username and your IRIS password. If this is your first login, use the temporary password sent to your registered email and change it immediately. Always verify you're on the genuine iris.fbr.gov.pk URL — phishing sites that mimic IRIS are a known scam targeting Pakistani taxpayers.

Step 2

Select the Correct Return Form

Navigate to Declaration then Income Tax Return and select the relevant tax year. Choose: Form A for salaried individuals whose primary income is from employment; Form B for business income, sole proprietors, and freelancers; or the AOP form for partnerships. The system auto-populates data already in IRIS records — verify every pre-filled field carefully before moving forward.

Step 3

Enter All Income Sources and Deductions

Declare all income for the tax year: salary income with the tax deducted at source amount from your employer certificate; business income as revenue minus allowable expenses; rental income received; capital gains from asset sales; and bank profit or dividends received. Claim allowable deductions: Zakat paid to approved organisations; charitable donations to approved NPOs; education expenses; and health insurance premiums — these directly reduce your taxable income.

Step 4

Submit and Pay Any Balance Tax

After entering all income and deductions, IRIS calculates your total tax liability and offsets the tax already paid through employer deductions or advance tax payments. If additional tax is due, pay via IRIS online payment or generate a bank payment slip. Click Submit — IRIS generates a unique acknowledgement number confirming successful filing. Download and save this acknowledgement. Filing deadline: September 30 annually for individuals.

FBR and Filing Problems

IRIS not accepting my employer's tax deduction certificate amount

Employer withholding flows into IRIS through the employer's monthly filings. If your deducted amount doesn't appear in the Auto-Populated section, your employer may not have filed their monthly withholding statements on time. Follow up with your HR or accounts department.

IRIS keeps logging me out during form completion

Save your progress regularly using the Save Draft option. IRIS sessions time out after inactivity. Avoid working on the return across multiple browser tabs simultaneously.

Frequently Asked Questions

September 30 of the year following the tax year end (June 30). Tax Year 2026 (July 2025 to June 2026) must be filed by September 30, 2026.

Simple salaried returns can be self-filed on IRIS in 30-60 minutes with your employer's salary certificate. Complex returns with multiple income sources, business income, or capital gains benefit from a registered tax practitioner.