How to File Income Tax Returns Online in India: e-Filing Guide
File your Income Tax Return (ITR) through the official Indian income-tax e-Filing portal. This guide explains document preparation, Form 26AS and AIS reconciliation, choosing an ITR form, paying any outstanding tax, e-verifying the return and following up on refunds, corrections and appeals.
Official portal: Income Tax e-Filing.
Before filing: Gather PAN, Aadhaar details where applicable, bank information, income statements, Form 16, Form 26AS and AIS.
After filing: Complete e-verification within the applicable deadline and retain the acknowledgement.
Filing time: A straightforward return may be quick; a 10-minute completion is not guaranteed.
What is an Income Tax Return?
An Income Tax Return (ITR) is a prescribed declaration of a taxpayer's income, deductions, taxes paid and other required particulars for a tax period. e-Filing means submitting that return electronically to the Income Tax Department. The correct form, reporting requirements and filing deadline depend on the taxpayer's status, income and applicable law.
The Income-tax Act, 2025 came into effect on 1 April 2026. The Income-tax Act, 1961 continues to matter for earlier assessment years and transitional proceedings. Select the year and ITR form shown on the official portal; do not assume that historical section references or forms apply unchanged to a new tax year.
Step-by-step procedure to file an ITR online
- Sign in securely: Open the official e-Filing portal, register if necessary and log in using your own credentials.
- Choose the correct year and form: Follow the portal's prompts to select the applicable filing period and return form for your income sources.
- Check prefilled information: Review salary, interest, dividend, tax deductions, tax payments and other data; do not assume prefilled figures are always complete.
- Reconcile supporting records: Compare Form 16 or Form 16A, bank statements, Form 26AS, Annual Information Statement (AIS) and Taxpayer Information Summary (TIS).
- Compute income and taxes: Include all reportable income, apply the legally available tax regime and eligible deductions, and calculate tax, interest and any balance payable.
- Pay balance tax where necessary: Use the official portal's e-Pay Tax facility and check that payment details are correctly reflected.
- Validate and submit: Review schedules, bank details and disclosures, resolve validation errors and submit the return.
- Verify the return: Use an available e-verification method or another prescribed verification process within the applicable time limit.
- Save acknowledgement: Retain the acknowledgement, computation, tax challans and supporting records for future reference.
Documents and information to keep ready
| Record | Purpose |
|---|---|
| PAN, Aadhaar and bank account details | Taxpayer identification, verification and refund processing, as applicable. |
| Form 16 / Form 16A | Salary details and tax deducted at source, where issued. |
| Form 26AS | Cross-check tax credits and relevant tax transactions. |
| AIS and TIS | Review reported financial information and information summaries. |
| Bank, investment and capital gains statements | Calculate interest, dividend, capital gains and other taxable receipts. |
| Business books and audit records | Support business or professional income and applicable disclosures. |
| Deduction and exemption proofs | Substantiate claims permitted under the applicable law and tax regime. |
How to check Form 26AS, AIS and TDS credits
Tax Deducted at Source (TDS) is tax withheld by a payer under applicable law. Form 26AS and AIS help identify information reported against a taxpayer's PAN. Compare these records with employer certificates, bank statements and other evidence. If an entry is incorrect or missing, seek correction through the appropriate deductor or reporting entity and use the portal's available feedback process.
AIS may include information beyond TDS, such as specified financial transactions. The taxpayer remains responsible for declaring taxable income correctly even when a receipt does not appear in the statement.
Tax computation and payment assistance
Prepare a computation covering relevant heads of income, eligible exemptions, deductions, advance tax, TDS, tax collected at source and self-assessment tax. Choose between available tax regimes only after comparing their rules for the relevant year. Any balance tax should be paid using the prescribed process before final submission when required.
For deductions and tax-saving provisions, see our guides on Chapter VI-A deductions, exempt income and tax-saving investments. Historical guides should be read alongside the law governing the actual filing year.
Return filing support and professional tax services
Businesswonder provides information about tax return preparation and professional assistance. Depending on the engagement and the taxpayer's circumstances, support may cover the following:
- Explaining filing requirements, available tax-saving options and the correct ITR form.
- Checking Form 26AS, AIS and TDS certificates for discrepancies.
- Preparing income-tax computations and return schedules.
- Assisting with payment of any balance tax and return submission.
- Helping taxpayers complete verification and retain filing acknowledgements.
- Reviewing refund status, return processing and permitted rectification or revision requests.
- Preparing responses to notices and assisting with assessment and appellate proceedings where professionally authorised.
What to do after filing: refunds, revised returns and appeals
Check income-tax refund status
After verification and processing, use the official e-Filing portal to check the status of your return and any refund. Confirm that the relevant bank account is validated and that notices or requests for information are addressed.
Correct or revise an earlier return
If a filed return contains an error, consider a revised return, rectification or another legally available remedy, depending on the type of mistake and the statutory deadline. These processes are not interchangeable and eligibility must be checked for the relevant period.
Assessments and appeals
Income-tax notices may require a response, supporting records or representation. An adverse order may have statutory appeal options, including proceedings before the Commissioner (Appeals) and Income Tax Appellate Tribunal, subject to applicable rules and time limits. See appeal filing and time limits.
Important filing tips
- Do not rely on a promise that every tax return can be filed in 10 minutes.
- Verify all income sources even if they are missing from prefilled data.
- Check the return due date, audit requirements and any extensions officially notified for the relevant year.
- Confirm that the return is successfully e-verified, not merely uploaded.
- Preserve records for future assessments, revisions or appeals.
Frequently asked questions
Where should I file my income-tax return?
File through the official Income Tax Department e-Filing portal.
Can I complete e-filing in 10 minutes?
It may be possible for a very simple return with complete records, but the time depends on the income, form, reconciliations and verification requirements.
Why should I check Form 26AS and AIS?
They help identify reported tax credits and financial information so that discrepancies can be reviewed before filing.
Is uploading the return sufficient?
No. Complete the prescribed verification process within the applicable time limit.
Can I change a return after submission?
A revised return, rectification or another remedy may be available, depending on the circumstances and deadline.
Where can I check a pending refund?
Use the official e-Filing portal to check return processing and refund status.
Official government resources
- Income Tax Department e-Filing Portal - filing, verification, payments and return status.
- Income Tax Department - tax law, notifications and official guidance.
- India Code - central legislation including the income-tax statutes.
- e-Gazette of India - official notifications and legal publications.
Further reading: income-tax return utilities and filing resources, advance tax payments, important tax due dates and tax audit requirements.
General information only. Always verify the law, filing form, portal instructions and notified deadlines for the relevant tax year.