Online ITR Filing India — File Your Income Tax Return Online in 24 Hours
Everything you need to know about online ITR filing for AY 2026-27 — who can file, which form to use, deadlines, refund claims, and why CA-assisted online filing saves you time and maximises your refund.
Online ITR filing is the process of submitting your Income Tax Return electronically via the Income Tax Department portal or a CA-assisted service. It is mandatory if your gross income exceeds ₹2.5 lakh (general category) and must be completed by 31st July 2026 for AY 2026-27. Filing online takes as little as 30 minutes on your own, or 24 hours with SetupFiling.In’s expert CA team.
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Online ITR filing has transformed how India’s taxpayers meet their compliance obligations. What once required physical visits to a Chartered Accountant’s office and paper-based submissions now takes under 30 minutes from your phone or laptop. Yet despite the convenience, millions of Indians still miss the deadline, file the wrong form, or leave significant TDS refunds unclaimed. This guide covers every aspect of online income tax return filing for AY 2026-27 (FY 2025-26) — from choosing the right ITR form and claiming maximum deductions, to understanding the Section 87A rebate and completing e-verification.
Whether you are a salaried employee, a freelancer, a business owner, or an NRI, online ITR filing is the fastest, most accurate, and legally required method for submitting your return to the Income Tax Department of India.
What Is Online ITR Filing?
Online ITR filing, also called e-filing of income tax return, is the electronic submission of your annual income and tax details to the Income Tax Department through the official portal at incometax.gov.in. The portal was introduced as part of India’s Digital India initiative and has since become the default — and for most taxpayers, the only — method of filing returns.
Online filing covers all ITR forms (ITR-1 through ITR-7), supports both the old and new tax regimes, pre-fills data from your Annual Information Statement (AIS) and Form 26AS, and allows you to e-verify your return instantly using Aadhaar OTP. CA-assisted platforms like SetupFiling.In handle the entire process on your behalf, ensuring deduction optimisation and error-free submission.
The Income Tax Department no longer accepts physical returns for most taxpayers. Super senior citizens above 80 years with income only from salary or pension are the only category still permitted to file physical returns. All other taxpayers must file online.
Who Must File ITR Online? — Eligibility & Exemption Limits AY 2026-27
Your obligation to file an online Income Tax Return is determined by your gross total income, not your tax payable. If your income exceeds the basic exemption limit below, filing is mandatory even if the Section 87A rebate makes your tax zero.
| Taxpayer Category | Old Regime Exemption Limit | New Regime Exemption Limit | Online ITR Filing Mandatory? |
|---|---|---|---|
| Individuals below 60 years | ₹2,50,000 | ₹3,00,000 | Yes — If Exceeded |
| Senior Citizens (60–80 years) | ₹3,00,000 | ₹3,00,000 | Yes — If Exceeded |
| Super Senior Citizens (80+ years) | ₹5,00,000 | ₹3,00,000 | Yes — If Exceeded |
| Income below exemption limit | Below ₹2.5 lakh | Below ₹3 lakh | Not Mandatory* |
| Director in any company | Any income level | Any income level | Always Mandatory |
| Foreign asset holder / NRI | Any income level | Any income level | Always Mandatory |
*Filing is strongly recommended even if not mandatory — especially if TDS was deducted or you need income proof for loans and visas.
Which ITR Form to Use for Online Filing? — AY 2026-27 Quick Reference
Selecting the wrong ITR form is one of the most common errors in online ITR filing and can result in a defective return notice from the Income Tax Department. Use the table below to identify the correct form for your income type.
| ITR Form | Who Should File Online | Income Sources Covered |
|---|---|---|
| ITR-1 (Sahaj) | Salaried individuals, income up to ₹50 lakh | Salary, one house property, interest income, dividends up to ₹5,000 |
| ITR-2 | Capital gains earners, multiple property owners | All ITR-1 sources + capital gains, multiple house properties, foreign income/assets |
| ITR-3 | Business owners, freelancers, professionals | All sources including profits and gains from business or profession (PGBP) |
| ITR-4 (Sugam) | Presumptive scheme taxpayers | Business income under Section 44AD, 44ADA, or 44AE |
| ITR-5 | LLPs, AOPs, BOIs, firms | Firm/LLP/AOP/BOI income |
| ITR-6 | Companies (except Sec 11 exempt) | Company income — must file online only |
| ITR-7 | Trusts, political parties, research institutions | Income of entities under Sections 139(4A) to 139(4F) |
Old Tax Regime vs. New Tax Regime — Which to Choose for Online Filing?
One of the most important decisions in online ITR filing is the choice of tax regime. The new regime is the default for AY 2026-27 — but it is not always the better choice. Here is a side-by-side comparison:
Old Tax Regime
- ✔Section 80C deduction up to ₹1.5 lakh
- ✔Section 80D health insurance deduction
- ✔HRA exemption available
- ✔LTA, professional tax, interest on home loan
- ✔Standard deduction ₹50,000
- ✔87A rebate up to ₹5 lakh income
- ✔Best for: High investment / deduction taxpayers
New Tax Regime (Default)
- ✔Lower slab rates (0% up to ₹4 lakh, 5% up to ₹8 lakh)
- ✔No 80C / 80D / HRA deductions
- ✔Standard deduction ₹75,000 for salaried
- ✔87A rebate up to ₹7 lakh income
- ✔Zero tax for salary up to ₹12.75 lakh (salaried)
- ✔Simpler computation, fewer documents
- ✔Best for: Low-investment salaried individuals
Salaried individuals can switch between old and new regimes every year when filing online. However, if you have business income (ITR-3 or ITR-4), switching back to the old regime is permitted only once in a lifetime. Choose carefully before submitting.
How to File Income Tax Return Online — Step-by-Step Guide for AY 2026-27
Follow these eight steps for accurate, penalty-free online ITR filing for Assessment Year 2026-27 (Financial Year 2025-26):
PAN card, Aadhaar number, Form 16 (from employer), bank statements for all accounts, FD interest certificates, capital gains statements from broker, rental income details, and Form 26AS / AIS downloaded from incometax.gov.in. Cross-check TDS entries in Form 26AS with your actual income to avoid mismatches that trigger notices.
Refer to the ITR form table above. Most salaried employees use ITR-1. If you have share trading income, use ITR-2. Business income requires ITR-3. Using the wrong form results in a defective return notice.
Visit incometax.gov.in and log in with your PAN as the user ID. First-time users must register using PAN as user ID and their Aadhaar-linked mobile number for OTP. If your Aadhaar is not linked to PAN, complete the linking before filing.
Go to e-File → Income Tax Returns → File Income Tax Return. Select Assessment Year 2026-27. Choose between online (pre-filled) and offline (utility) mode. The online mode auto-fills most data from your AIS and 26AS — review and confirm each entry carefully.
Enter salary income from Form 16, bank interest, capital gains, and all other income. Under the old regime, claim deductions: Section 80C (PF, PPF, ELSS, LIC premium up to ₹1.5 lakh), 80D (health insurance), 80TTA (savings interest up to ₹10,000), HRA, and home loan interest. Under the new regime, only the ₹75,000 standard deduction applies.
Compare your tax liability under both regimes and select the one with a lower tax. If your net taxable income is ≤₹5 lakh (old) or ≤₹7 lakh (new), Section 87A rebate reduces your tax to zero. If TDS was deducted and your tax is zero, the excess TDS shows as a refund.
If tax is payable after accounting for TDS and advance tax, pay it as self-assessment tax through Challan 280 at incometax.gov.in before submitting the return. Submitting a return with unpaid tax triggers interest under Section 234B.
Submit the ITR and immediately complete e-verification using Aadhaar OTP, net banking, or bank account EVC. If e-verification is not done within 30 days of filing, the return is treated as invalid. Once e-verified, you receive an ITR-V acknowledgement by email.
For complete guidance on the current year return, visit our ITR filing AY 2026-27 guide. For government employees, see our ITR filing for individuals page.
Documents Required for Online ITR Filing
The exact documents required for online ITR filing depend on your income sources. Here is a comprehensive checklist:
| Income / Deduction Type | Documents Needed for Online ITR Filing |
|---|---|
| Salary Income | Form 16 (Part A & B) from employer, salary slips, employer PAN |
| Bank Interest | Bank statements, FD interest certificates, passbook |
| House Property | Rental agreement, municipal tax receipts, home loan interest certificate |
| Capital Gains | Broker capital gains statement (Form 112A for equity), property sale deed, purchase deed |
| Business / Professional Income | Books of accounts, profit and loss statement, balance sheet (if applicable) |
| 80C Deductions | PF passbook, PPF statement, ELSS/mutual fund statement, LIC premium receipts, home loan principal certificate |
| 80D Deductions | Health insurance premium receipts |
| TDS Credit | Form 26AS, AIS from incometax.gov.in |
| Identity & Login | PAN card, Aadhaar number, Aadhaar-linked mobile for OTP |
Penalties and Consequences for Not Filing ITR Online on Time
Missing the online ITR Filing Due Date is a costly mistake. Here is what happens if you do not file by 31st July 2026:
| Consequence | Section | Amount / Impact |
|---|---|---|
| Late Filing Fee | Section 234F | ₹5,000 (capped at ₹1,000 for income ≤ ₹5 lakh) |
| Interest on Tax Due | Section 234A | 1% per month on unpaid tax from due date |
| Loss of Carry-Forward | Sections 80 / 139 | Business and capital losses cannot be carried forward |
| Refund Forfeiture | Section 239 | TDS refund may be forfeited if not claimed within time |
| Scrutiny / Prosecution | Sections 142 / 148 / 276CC | Penalty up to 200% of tax + possible prosecution |
| Loan & Visa Issues | — | Banks and embassies reject applications without filed ITRs |
Regular filing deadline (individuals, non-audit): 31st July 2026. Belated return with ₹1,000 late fee: up to 31st December 2026. Revised return (to correct errors): up to 31st December 2026. After 31st December 2026, filing is possible only in response to an Income Tax Department notice.
How to Claim TDS Refund Through Online ITR Filing
One of the most important reasons to file an online ITR is to reclaim TDS (Tax Deducted at Source) that was deducted in excess of your actual tax liability. Employers, banks, and mutual funds routinely deduct TDS on salary, FD interest, dividends, and capital gains. If your actual tax after deductions and rebates is lower than the TDS deducted, you are entitled to a refund.
Gross Salary: ₹6,00,000. Standard Deduction: ₹75,000. Net Income: ₹5,25,000. Under the new regime, tax on ₹5,25,000 = approx. ₹18,750. If employer deducted TDS of ₹25,000, the ITR filing generates a refund of ₹6,250 credited directly to your bank account. Without filing, this refund is lost.
Refunds are processed by the Income Tax Department within 15 to 45 days of ITR processing and credited directly to the pre-validated bank account linked to your PAN. See our detailed advance tax and refund guide for more information.
Why Choose SetupFiling.In for Online ITR Filing?
- ✔Qualified CA team with 15+ years of combined expertise reviews every return before submission — no automated filing errors
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- ✔All income types covered — salary, business, capital gains, share trading, rental, foreign income, NRI returns
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- ✔On-time filing guarantee — we track every deadline and ensure your return is filed before 31st July 2026
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