Income Tax Returns

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

5 min readIndia LawBy G R HariVerified Advocate

Quick Answer

> One line summary: Filing your income tax return online is mandatory for most taxpayers, and this guide walks you through the entire process on the Income Tax Department portal.

Who needs to file an income tax return online in India?

Any individual whose gross total income exceeds the basic exemption limit must file an income tax return (ITR) online. For the financial year 2023-24 (assessment year 2024-25), the basic exemption limit is ₹2.5 lakh for individuals below 60 years, ₹3 lakh for senior citizens (60-80 years), and ₹5 lakh for super senior citizens (above 80 years). Even if your income is below these limits, you may still need to file if you have certain assets, foreign income, or have claimed a refund of TDS deducted.

The Income Tax Department mandates electronic filing (e-filing) for all taxpayers except those who are 80 years or older and not required to file under section 139(1). The e-filing portal at www.incometax.gov.in is the official platform. You must file your return by the due date, which is usually July 31 for most individuals, unless extended by the government.

What documents do I need before I start filing my ITR online?

Before you begin, gather the following documents to ensure a smooth filing process:

  • Form 16 from your employer(s) showing salary income and TDS deducted.
  • Form 26AS (available on the TRACES portal or your e-filing account) which shows all TDS credited against your PAN.
  • Bank statements and interest certificates for savings account, fixed deposits, and recurring deposits.
  • Investment proofs for deductions under Section 80C (PPF, ELSS, life insurance premiums, etc.), 80D (health insurance), and other sections.
  • Home loan statements if you have a housing loan, showing principal and interest components.
  • Capital gains details if you sold any assets like shares, mutual funds, or property.
  • Rent receipts and landlord's PAN if claiming HRA exemption.
  • Aadhaar number and PAN card for verification.

Having these documents ready will help you accurately compute your total income and claim all eligible deductions.

How do I register and log in to the Income Tax e-filing portal?

If you are a first-time user, you need to register on the e-filing portal. Visit www.incometax.gov.in and click on "Register". You will need your PAN, Aadhaar number, and a valid mobile number linked to your Aadhaar. The system will send an OTP to your mobile for verification. After successful registration, you will create a password and set up your profile.

For existing users, log in using your PAN as the user ID and your password. If you have forgotten your password, use the "Forgot Password" option to reset it via OTP sent to your registered mobile number. Once logged in, you will see your dashboard with options to file returns, view Form 26AS, and access other services.

What is the step-by-step process to file my ITR online?

Follow these steps to file your income tax return online:

Step 1: Choose the correct ITR form. The portal will suggest the appropriate form based on your income sources. For salaried individuals with no business income, ITR-1 (Sahaj) is applicable if your total income is up to ₹50 lakh. If you have capital gains or foreign assets, you may need ITR-2 or ITR-3.

Step 2: Prepare and pre-fill your return. Click on "e-File" > "Income Tax Return" > "File Income Tax Return". Select the assessment year (e.g., 2024-25 for FY 2023-24). Choose the ITR form and filing type (online or offline). The portal will pre-fill your personal details, salary income from Form 16, TDS from Form 26AS, and bank interest. Verify these details carefully.

Step 3: Add additional income and deductions. Enter any income not pre-filled, such as rental income, capital gains, or income from other sources. Claim deductions under Chapter VI-A (80C, 80D, etc.) and any tax-saving investments. The system will calculate your total tax liability or refund automatically.

Step 4: Verify and submit. Review the computed tax. If tax is payable, you can pay it online through the portal using net banking, debit card, or UPI. If a refund is due, enter your bank account details for direct credit. Finally, submit the return.

Step 5: E-verify your return. After submission, you must verify your return within 30 days. You can e-verify using Aadhaar OTP, net banking, or through a digital signature certificate (DSC). Alternatively, you can send a signed physical copy of ITR-V to the CPC in Bengaluru.

What are the common mistakes to avoid when filing ITR online?

Many taxpayers make errors that lead to processing delays or notices. Avoid these common pitfalls:

  • Incorrect personal details: Double-check your name, PAN, Aadhaar, and bank account numbers. A mismatch can cause refund failures.
  • Omitting income sources: Disclose all income, including interest from savings accounts, fixed deposits, and any freelance or consulting income. The department has access to Form 26AS and AIS (Annual Information Statement).
  • Wrong ITR form: Using ITR-1 when you have capital gains or foreign assets will result in a defective return. Use the correct form as per your income profile.
  • Not claiming all deductions: Many taxpayers miss deductions like Section 80TTA (savings account interest up to ₹10,000) or Section 80EEA (home loan interest for first-time buyers).
  • Ignoring Form 26AS: Ensure all TDS shown in Form 26AS matches your income. If there is a discrepancy, contact your deductor before filing.
  • Late filing: Filing after the due date attracts a late fee of up to ₹5,000 under Section 234F and you lose the ability to carry forward certain losses.

What You Should Do Next

If you have all your documents ready, log in to the e-filing portal and start the process. For complex situations like capital gains, foreign income, or business income, consider consulting a qualified chartered accountant or tax professional to ensure accuracy and compliance.


This page provides preliminary information. It is not legal advice. For your matter, consult a qualified professional.

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