How to File ITR Online in 2026: A Complete Step-by-Step Guide

Filing your Income Tax Return (ITR) online has never been easier — but many taxpayers still find it confusing. This guide walks you through every step, from gathering your documents to receiving your acknowledgment number.

Who Must File an ITR?

You are required to file an ITR if any of the following apply:

• Your gross total income exceeds ₹2.5 lakh in the financial year (₹3 lakh for senior citizens above 60, ₹5 lakh for super senior citizens above 80)
• You have earned income from foreign assets or have signing authority in a foreign account
• You want to claim a tax refund
• Your turnover from business exceeds ₹60 lakh, or from profession exceeds ₹10 lakh
• You have deposited more than ₹1 crore in a current bank account during the year

Even if your income is below the threshold, filing a return is recommended — it serves as proof of income for loan applications, visa processing, and more.

Step 1: Determine Which ITR Form to Use

Choosing the wrong form is one of the most common mistakes. Here is a quick reference:

• ITR-1 (Sahaj) — For salaried individuals with income up to ₹50 lakh, one house property, and no capital gains
• ITR-2 — For individuals with capital gains, multiple house properties, or foreign income
• ITR-3 — For individuals and HUFs with business or professional income
• ITR-4 (Sugam) — For individuals opting for the presumptive taxation scheme under Section 44AD/44ADA

If you are a salaried employee with a simple tax profile, ITR-1 is almost certainly the right choice.

Step 2: Gather Your Documents

Before you begin, keep these ready:

• PAN Card — mandatory for filing
• Aadhaar Card — required for e-verification
• Form 16 — issued by your employer, shows salary and TDS deducted
• Form 26AS — your tax credit statement, available on the IT portal
• Annual Information Statement (AIS) — shows all income and transactions reported against your PAN
• Bank account statements — for interest income
• Investment proofs — for claiming deductions under Section 80C, 80D, etc.

Pro tip: Always cross-check Form 26AS and AIS before filing. Any mismatch between your return and these documents can trigger a notice from the Income Tax Department.

Step 3: Log In to the Income Tax e-Filing Portal

1. Go to incometax.gov.in
2. Click Login in the top right corner
3. Enter your PAN as the User ID
4. Complete the secure access message verification
5. Enter your password and click Continue

If you are a first-time user, click Register and complete the registration using your PAN and Aadhaar.

Step 4: Start Your ITR Filing

1. After logging in, click e-File in the top menu
2. Select Income Tax Returns → File Income Tax Return
3. Choose Assessment Year 2026-27
4. Select Online mode of filing
5. Click Start New Filing

The portal will ask you to select your filing status — choose Individual and then select the appropriate ITR form.

Step 5: Pre-fill and Verify Your Data

The Income Tax portal now pre-fills most of your data automatically from Form 26AS and AIS. This includes:

• Salary income from your employer
• TDS already deducted
• Interest from savings accounts and FDs
• Dividend income

Carefully review every pre-filled entry. Add any income that may be missing — such as rental income, freelance earnings, or capital gains from mutual funds.

Step 6: Claim Your Deductions

This is where you reduce your taxable income. Common deductions include:

• Section 80C (up to ₹1.5 lakh) — PPF, ELSS, LIC premium, home loan principal, tuition fees
• Section 80D — health insurance premium (up to ₹25,000 for self, ₹50,000 for senior citizen parents)
• Section 24(b) — home loan interest (up to ₹2 lakh for self-occupied property)
• Section 80TTA — savings account interest up to ₹10,000
• Section 80G — donations to eligible institutions

Also choose between the Old Tax Regime (with deductions) and the New Tax Regime (lower rates, fewer deductions). The portal will show you the tax payable under both — pick whichever results in lower tax.

Step 7: Pay Any Remaining Tax

If there is outstanding tax after accounting for TDS and advance tax, you must pay it before filing:

1. Go to e-Pay Tax on the portal
2. Select Challan 280 for income tax payment
3. Choose Self Assessment Tax (300) as the payment type
4. Pay via net banking, UPI, or credit/debit card
5. Note the BSR code and Challan Serial Number — you will need these

Step 8: Submit Your Return

Once everything is filled in and verified:

1. Click Preview Return and check all details once more
2. Click Proceed to Validation — the portal will flag any errors
3. Fix any errors flagged
4. Click Submit

You will receive your ITR-V acknowledgment on your registered email immediately after submission.

Step 9: E-Verify Your Return

This step is mandatory. Your return is not complete until it is e-verified. You have 30 days from the date of filing to do this.

The easiest methods:

• Aadhaar OTP — instant, most common method
• Net Banking — login to your bank's net banking and verify from there
• Demat Account — if you have a demat account with CDSL/NSDL
• Bank ATM — generate an EVC at your bank's ATM

If you cannot e-verify electronically, send the signed physical ITR-V to CPC Bengaluru by speed post within 30 days.

What Happens After Filing?

• You will receive a acknowledgment number via email
• The IT Department will process your return — usually within 20–45 days
• If a refund is due, it will be credited directly to your pre-validated bank account
• You can track your refund status at tin.tin.nsdl.com or on the IT portal

Important Deadlines for AY 2026-27

Filing after the due date attracts a late filing fee of ₹5,000 (₹1,000 if income is below ₹5 lakh).

Common Mistakes to Avoid

1. Not reporting all income — bank interest, freelance earnings, and dividends are taxable
2. Wrong ITR form — using ITR-1 when you have capital gains will result in a defective return notice
3. Not e-verifying — an unverified return is treated as not filed
4. Missing the deadline — late filing attracts penalties and you lose the ability to carry forward losses
5. Not checking Form 26AS — mismatch leads to tax notices

Filing your ITR doesn't have to be stressful. If your income situation is complex — multiple income sources, capital gains, foreign income, or ESOPs — our expert CA team can handle it for you at a transparent fixed price.