How to File ITR-1 Online in India 2026: A Step-by-Step Walkthrough
ITR-1 (Sahaj) is the simplest income tax return form, designed for salaried individuals with total income up to ₹50 lakh from salary, one house property, and other sources. The income tax e-filing portal pre-fills most data from Form 26AS / AIS, making the process largely a verification exercise. Here's the complete walkthrough — what to gather, every screen you'll see, and the common mistakes that cause refunds to get rejected.
Who should file ITR-1
ITR-1 is for resident individuals with total income up to ₹50 lakh, where income consists of: salary or pension, one self-occupied house property, and other sources (FD interest, savings interest, family pension). Agricultural income up to ₹5,000 is also acceptable.
You cannot file ITR-1 if you have: more than one house property, capital gains, business or professional income, foreign assets or income, agricultural income above ₹5,000, or residency outside India. Those cases need ITR-2, ITR-3, or ITR-4.
Before you start: documents to gather
Have these ready before logging in — having them all to hand reduces filing time from an hour to 15 minutes:
- Form 16 from each employer (Part A: TDS details; Part B: salary breakdown). Available from your employer by 15 June after the financial year ends.
- Form 26AS from incometax.gov.in (My Account → View Form 26AS) — the official record of TDS deducted on your PAN.
- Annual Information Statement (AIS) — broader than 26AS, includes reported financial transactions (dividends, mutual fund redemptions, interest).
- Bank statements for FD interest details (TDS already deducted will show in 26AS).
- Investment proofs if claiming deductions: PPF passbook, ELSS/NPS statement, LIC premium receipt, kid's tuition fee receipt.
- Home loan certificate if claiming Section 24 (principal + interest breakdown) and stamp duty/registration receipt for 80C.
- Rent receipts + landlord PAN if claiming HRA (mandatory if annual rent > ₹1 lakh).
- Aadhaar + PAN both linked — without linkage, ITR cannot be filed. Check at incometax.gov.in.
Step-by-step on the e-filing portal
1. Login at incometax.gov.in
Go to https://www.incometax.gov.in and log in with PAN as User ID. First-time users register first (link Aadhaar + Mobile + Email). After login, you'll see the dashboard with your tax credit status, refund history, and quick actions.
2. Click File Income Tax Return → ITR-1
From the dashboard, select “e-File” → “Income Tax Returns” → “File Income Tax Return”. Choose the assessment year (e.g., AY 2025-26 for income earned in FY 2024-25). Select “Online” mode and “Individual”. The portal will suggest the form based on your AIS data; confirm ITR-1.
3. Verify pre-filled data
The portal pre-fills: salary income (from Form 16 uploaded by your employer), TDS, interest income, and most deductions. Cross-check every figure against your Form 16, 26AS, and AIS. Edit any discrepancy by clicking the “Edit” button next to each section.
4. Choose tax regime (new or old)
The portal asks whether you want the new regime (default) or old regime. Run our income tax calculator before this step to see which is better for your situation. New regime: no deductions, lower slabs. Old regime: full deductions, higher slabs. Choice locked for this AY.
5. Enter deductions (old regime only)
If you picked old regime, the portal pre-fills Section 80C (from your employer's reporting), 80D, and a few others. Edit to add: PPF outside employer, NPS 80CCD(1B), additional life insurance, mutual fund ELSS, home loan principal, kid's tuition fees. Each requires the actual amount paid in the financial year.
6. Verify tax computation
The portal computes total tax, surcharge, and cess based on regime + deductions + slabs. Cross-check against your own calculation (or our income tax calculator result). If there's a discrepancy, recheck deduction entries and salary breakdown.
7. Tax paid section (TDS + advance + self-assessment)
The portal pre-fills TDS from Form 26AS. Cross-check the total against your Form 16. If you paid advance tax (Challan 280 deposits during the year), enter BSR + Challan numbers in the “Advance Tax” section. If there's a self-assessment tax shortfall, pay it via Challan 280 first; then enter the challan details before submitting.
8. Bank account for refund
Pre-validate the bank account where you want the refund credited (IFSC + account number). The pre-validation happens automatically if you have a linked, EVC-enabled bank account. Without pre-validation, refund processing is delayed by 30-45 days.
9. Submit and e-verify
After review, click “Submit”. The portal generates an acknowledgement (ITR-V). Within 30 days, you MUST e-verify using one of: Aadhaar OTP, net banking, DSC (digital signature), or by sending a signed physical ITR-V to CPC Bengaluru. Most people use Aadhaar OTP — fast and free.
Common mistakes that cause refund issues
Not e-verifying within 30 days: ITR is treated as not filed. Re-submit and e-verify within the deadline.
Bank account not pre-validated: refund is delayed or rejected. Always pre-validate before filing.
TDS claim exceeds Form 26AS: refund is rejected for the excess. Only claim TDS that actually appears in your 26AS.
Wrong assessment year selected: filing for the wrong year. Double-check that AY matches the FY in which income was earned (AY 2025-26 = FY 2024-25 income).
HRA claimed without landlord PAN when rent exceeds ₹1L/year: deduction can be disallowed. Always furnish PAN if applicable.
After filing — what to expect
Refunds are typically processed within 15-45 days of e-verification. Track via “Refund Status” on the portal. Interest under Section 244A (6% annualised) is paid on refunds if you filed by the due date (typically 31 July).
Intimation under Section 143(1) is sent within 6 months of filing — confirms the assessment. If the IT Department disagrees with your computation, this intimation will show their version; you can respond or file a rectification.
Keep all supporting documents (Form 16, 26AS, investment proofs) for 6 years after filing. The IT Department can ask for them in scrutiny within this window.
Calculate your tax first
Run both regimes against your salary + deductions before filing. Pick the regime that saves more.
Open Income Tax India