How to File ITR Online in 2026 — Step-by-Step Guide for Beginners
By Parul Singh, GST Practitioner · ITR Filing · Updated June 2026
Table of Contents
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ITR Forms — Which One to Use?
I have filed 10,000+ income tax returns. The government made online filing easy, but choosing the wrong ITR form or missing a deduction costs thousands. The first step is selecting the correct form:
| Form | Who Should File |
|---|---|
| ITR-1 (Sahaj) | Salaried individuals, pensioners, income up to ₹50L, one house property |
| ITR-2 | HUFs, income from capital gains, foreign income, more than one house property |
| ITR-3 | Business/profession income (including presumptive) |
| ITR-4 (Sugam) | Presumptive taxation (Section 44AD/44ADA) |
| ITR-5 | Partnership firms, LLPs |
| ITR-6 | Companies |
| ITR-7 | Trusts, NGOs, political parties |
Official Reference: Section 139 of the Income Tax Act 1961 mandates filing of return of income. Rule 12 of Income Tax Rules prescribes the forms. CBDT notifies the applicable forms every year through notification.
📍 Real Example — Wrong Form — Salaried Employee in Vasant Kunj
Amit, a salaried employee in Vasant Kunj with ₹12 lakh income, filed ITR-1. But he also had ₹50,000 short-term capital gains from stock trading. ITR-1 does not accommodate capital gains — his return was declared defective under Section 139(9). He had to file ITR-2 instead. The rectification delayed his refund by 3 months.
Documents Required for ITR Filing
- Form 16 — from your employer (for salaried)
- Form 16A/16B/16C — TDS certificates from other sources
- Bank statements — all accounts, for interest income reporting
- Investment proofs — PPF, ELSS, LIC, NPS for Section 80C
- Home loan certificate — for Section 24(b) and 80C
- Capital gains statement — from broker for stock/MF gains
- Rental agreement — for HRA exemption or house property income
- Aadhaar card — mandatory for filing
Step-by-Step ITR Filing Process
- Login to incometax.gov.in using PAN and password
- Click "e-File" → "Income Tax Return"
- Select Assessment Year (for FY 2025-26, select AY 2026-27)
- Select ITR form (ITR-1 or ITR-4 for most individuals)
- Select Filing Type — "Original Return"
- Fill in personal information (auto-populated from PAN/Aadhaar)
- Fill income details — salary, house property, capital gains, other sources
- Fill deduction details — 80C, 80D, 80CCD, HRA, etc.
- Fill tax details — TDS/TCS/advance tax already paid
- Verify the computation — check tax/refund amount
- Click "Preview and Submit"
- E-Verify immediately (Aadhaar OTP, net banking, or bank ATM)
📍 Real Example — ITR-1 Filing — Dwarka Salaried Employee
Sneha, a bank employee in Dwarka with ₹9.5 lakh salary, files ITR-1:
• Income from salary: ₹9,50,000
• Standard deduction: ₹75,000
• Section 80C (PPF + LIC): ₹1,50,000
• Section 80D (health insurance): ₹25,000
• Taxable income: ₹7,00,000
• Tax under new regime: ₹0 (within ₹12 lakh exemption after rebate)
• Total time to file: 15 minutes on incometax.gov.in
• Income from salary: ₹9,50,000
• Standard deduction: ₹75,000
• Section 80C (PPF + LIC): ₹1,50,000
• Section 80D (health insurance): ₹25,000
• Taxable income: ₹7,00,000
• Tax under new regime: ₹0 (within ₹12 lakh exemption after rebate)
• Total time to file: 15 minutes on incometax.gov.in
E-Verification Methods
Your ITR is not complete until you e-verify. You have 30 days from filing to verify, or the return is treated as not filed:
- Aadhaar OTP: Fastest — OTP sent to Aadhaar-linked mobile
- Net banking: Login to your bank → direct verification
- Bank ATM: Generate EVC at SBI/Axis/Kotak ATM
- DSC: Digital Signature Certificate (mandatory for companies)
- Demat account: Through NSDL/CDSL
⚠️ Common Mistake: The biggest mistake: filing ITR but forgetting to e-verify. Unverified returns are treated as never filed. You lose the filing date for carrying forward losses, and late fees may apply. I had a client who filed on 31st July but e-verified on 15th August — his return was treated as belated!
Common ITR Filing Mistakes
- Wrong ITR form — using ITR-1 when you have capital gains
- Not reporting all bank accounts — mandatory disclosure
- Missing interest income — savings account interest is taxable above ₹10,000
- Not verifying — return is invalid without e-verification
- Wrong assessment year — AY is always the year after FY
💡 Pro Tip from Parul: I file ITR for 500+ clients every year — salaried, freelancers, business owners. Starting at ₹999 with regime comparison, deduction optimization, and same-day filing. Call/WhatsApp: +91 95401 04776
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Frequently Asked Questions
What is the last date to file ITR?
For salaried individuals and non-audit businesses: 31st July of the assessment year. For businesses requiring audit: 31st October. For transfer pricing cases: 30th November. Belated returns can be filed up to 31st December with late fee under Section 234F.
Can I revise my ITR after filing?
Yes, a revised return can be filed under Section 139(5) before the end of the assessment year or before the completion of assessment, whichever is earlier. For AY 2026-27, you can revise until 31st March 2028.
What is the penalty for late ITR filing?
Under Section 234F: ₹5,000 if filed by 31st December (₹1,000 for income below ₹5 lakh). Plus interest under Section 234A at 1% per month on outstanding tax from the due date until filing.
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