How to File Income Tax Return (ITR) Online: Step-by-Step Guide

Documents, portal steps, e-verification and common mistakes when filing your income tax return online.

How to File Income Tax Return (ITR) Online: Step-by-Step Guide

Documents to keep ready

  • PAN, Aadhaar, bank account details
  • Form 16 and salary slips
  • Form 26AS, AIS and TIS
  • Interest certificates, capital gains statements, rent receipts
  • Deduction proofs (80C, 80D, loan interest)

Steps

  1. Log in to the income tax e-filing portal.
  2. Choose assessment year and the right form (see our ITR form finder).
  3. Verify pre-filled data against AIS/26AS.
  4. Choose old or new regime.
  5. Pay any balance tax and enter challan details.
  6. Submit and e-verify within 30 days (Aadhaar OTP, net banking, etc.).

Common mistakes

  • Ignoring AIS entries (interest, dividends, sales)
  • Wrong form selection
  • Forgetting to e-verify
  • Not reporting foreign assets for residents

Prefer expert filing? See individual tax filing.

Need expert help with this?

Talk to the GstMan team. We will guide you step by step.

General information only; not professional advice. Rates, limits and due dates change. Verify with official sources or consult a professional. Reviewed October 2026. See our editorial policy.

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