The ITR filing process in India is an important tax compliance that ensures the timely submission of your Income Tax Return. If you have salary, interest, rent, capital gains, business income or income from other sources, understanding how to file ITR online can help you report your income correctly and avoid common filing mistakes.

For taxpayers currently filing AY 2026-27, the income being reported is for FY 2025-26, covering 1 April 2025 to 31 March 2026.

Notably, this return is still filed under the Income-tax Act, 1961, even though the Income-tax Act, 2025 came into force from 1 April 2026.

This guide will help you understand what is Income Tax Return, who should file ITR, which ITR form to use, documents required for ITR filing and how to file ITR online step by step.

What Is Income Tax Return (ITR)?

An Income Tax Return (ITR) is the prescribed form through which taxpayers report their income, deductions, taxes paid and other required information to the Income Tax Department.

Income reported in an ITR may include:

  • Salary or pension;
  • House property income;
  • Business or professional income;
  • Capital gains;
  • Bank and fixed-deposit interest;
  • Dividends; and
  • Other taxable income.

Eligible TDS, TCS, advance tax and self-assessment tax are also considered while calculating the final tax liability.

Once the return is prepared, the final calculation determines whether additional tax is payable, a refund is due, or no additional amount is payable or refundable.

FY 2025-26 and AY 2026-27: Understand the Difference

One of the most frequent errors in ITR filing is mixing up the Financial Year (FY) and Assessment Year (AY).

Particular Applicable Period
Financial Year FY 2025-26
Income earned 1 April 2025 to 31 March 2026
Assessment Year AY 2026-27
Law governing this ITR Income-tax Act, 1961

Hence, for income earned in FY 2025-26, taxpayers should choose AY 2026-27 on the e-Filing portal.

The new Tax Year terminology applies under the Income-tax Act, 2025 for income earned from 1 April 2026 onwards. Therefore, AY 2026-27 and Tax Year 2026-27 should not be treated as the same period.

Who Should File an Income Tax Return?

The requirement to file an ITR depends on several factors, including total income, residential status, nature of income and specified transactions.

A taxpayer may have a return-filing requirement even where the final tax payable is zero.

ITR filing can also be important if you want to:

  • Claim an income-tax refund;
  • Carry forward eligible losses;
  • Maintain proper income-tax records;
  • Report capital gains or business income;
  • Meet specified mandatory filing requirements; or
  • Report foreign income or foreign assets, where applicable.

Hence, it is not always correct to assume that zero tax means no ITR filing requirement.

Which ITR Form Should You File?

Selecting the correct ITR form is one of the most important steps while filing an Income Tax Return.

ITR-1

ITR-1 is meant for eligible resident individuals with relatively simple income.

For AY 2026-27, the current Income Tax Department filing manual states that eligible resident individuals with total income not exceeding ₹50 lakh may use ITR-1 subject to the prescribed conditions. The current manual includes eligible salary, up to two house properties, specified other-source income and eligible Section 112A long-term capital gains up to ₹1.25 lakh.

ITR-2

ITR-2 is generally applicable to individuals and HUFs who do not have income from business or profession but are not eligible to file ITR-1.

It is commonly relevant where a taxpayer has capital gains, foreign assets or other income requiring more detailed reporting.

ITR-3

ITR-3 is generally relevant for individuals and HUFs having income from business or profession, subject to the applicable conditions.

ITR-4

ITR-4 is intended for eligible individuals, HUFs and firms other than LLPs using specified presumptive taxation provisions, subject to the conditions applicable to the form.

Do not opt for a simpler ITR just because it is easier to fill. The form should be selected according to your actual income and circumstances. For a detailed comparison, read Which ITR Form to File for AY 2026-27?

For help choosing and preparing the correct return:

https://taxclear.in/itr-filing/

Documents Required for ITR Filing

Before you begin filing, gather the documents relevant to your income.

For a salaried taxpayer, these typically include:

  • PAN and Aadhaar details;
  • Form 16;
  • Form 26AS;
  • Annual Information Statement (AIS);
  • Taxpayer Information Summary (TIS);
  • Bank statements;
  • Interest certificates;
  • Home-loan certificate;
  • Investment and deduction proofs;
  • Rent-related documents, where applicable; and
  • Details of taxes already paid.

Investors may additionally require broker capital-gain statements, mutual fund statements, demat statements, purchase and sale records and dividend details.

Business taxpayers may require books of account, invoices, expense details, GST information, TDS records, financial statements and tax-audit information, where applicable.

Check AIS and Form 26AS Before Filing ITR

Do not prepare an ITR using only Form 16.

Review your AIS, TIS and Form 26AS before submission.

These records may contain information relating to salary, interest, TDS, TCS, securities transactions, property transactions and other reportable financial information.

However, pre-filled data should always be checked against your own records. Use this AIS, TIS and Form 26AS reconciliation guide before filing.

The presence of a transaction in AIS does not necessarily mean that the entire amount shown is taxable income. Likewise, if an amount does not appear in AIS, it does not automatically mean that it can be excluded from the return.

How to File ITR Online Step by Step

The online filing of ITR is straightforward when your documents and tax information are ready.

Step 1: Log In to the Income Tax Portal

Go to the official Income Tax e-Filing portal and log in with your user ID and password.

The Department lists an active PAN, registration on the e-Filing portal, a validated bank account and access to an eligible verification method among the important prerequisites for online filing.

Step 2: Click on File Income Tax Return

After logging in, navigate to:

e-File → Income Tax Returns → File Income Tax Return

This is the official route specified in the Department’s AY 2026-27 filing instructions.

Step 3: Select Assessment Year 2026-27

If the income is for FY 2025-26, choose:

Assessment Year: 2026-27

Select Online as the filing mode if you want to complete the return directly through the portal.

Step 4: Select Your Filing Status

Select the appropriate taxpayer status, such as Individual, HUF or another applicable status.

If you have already started preparing a return, the portal may allow you to resume filing. Otherwise, select the option to start a new filing.

Step 5: Select the Correct ITR Form

Choose the ITR form applicable to your income.

Do not select ITR-1 automatically merely because you receive a salary. Capital gains, business income, residential status, foreign assets and other factors can change the form applicable to you.

Step 6: Review Pre-Filled Information

The portal may pre-fill some information.

Check your:

  • Personal information;
  • Salary;
  • Interest;
  • TDS;
  • Bank accounts; and
  • Other available information.

Never take pre-filled data for granted. Compare it with Form 16, Form 26AS, AIS, bank statements and your other records.

Step 7: Report All Applicable Income

Report income under the respective heads applicable to you, including:

  • Income from Salary;
  • Income from House Property;
  • Profits and Gains from Business or Profession;
  • Capital Gains; and
  • Income from Other Sources.

The schedules available will vary depending on the ITR form selected.

Step 8: Select the Correct Tax Regime

For AY 2026-27, the new tax regime is the default regime for eligible individual taxpayers. The Department’s current ITR filing manual confirms that taxpayers who are eligible and want the old regime must make the appropriate selection while filing.

Do not choose a tax regime based only on slab rates. You can first compare the estimated liability using the TaxClear Income Tax Calculator.

Compare the final tax liability after considering applicable exemptions, standard deduction, Chapter VI-A deductions, housing-related benefits, employer NPS contribution and other eligible deductions or restrictions.

Taxpayers with business or professional income should be especially careful because additional rules apply when opting out of or switching tax regimes.

For professional tax planning:

https://taxclear.in/tax-consulting/

Step 9: Check TDS and Taxes Already Paid

Review all available tax credits, including:

  • TDS on salary;
  • TDS on interest;
  • Other TDS;
  • TCS;
  • Advance tax; and
  • Self-assessment tax.

The Department’s filing instructions specifically require taxpayers to confirm their tax-paid information.

One common mistake is paying self-assessment tax but not properly reporting or reflecting the tax payment in the ITR.

Step 10: Check Final Tax Liability or Refund

Once all information is entered, review the final computation.

There can broadly be three results:

Result Meaning
Tax payable Additional tax needs to be paid
Refund due Excess tax paid may be refundable
Nil balance No additional tax or refund

If tax is payable, complete the required payment and make sure it is correctly reflected in the return before submission.

Step 11: Preview, Submit and E-Verify the ITR

Before submitting, review the entire return.

Pay special attention to your PAN, contact details, bank account, total income, tax regime, deductions, capital gains, TDS/TCS, advance tax, self-assessment tax and refund amount.

An ITR should not be filed simply because the portal has produced a pre-filled computation.

After submission, e-verification is essential. Available methods can include Aadhaar OTP, EVC through bank/demat account, net banking and DSC, depending on eligibility.

After successful verification, keep the ITR acknowledgement for future reference.

Common ITR Filing Mistakes to Avoid

Many income-tax issues occur because of small filing mistakes rather than intentional non-compliance.

Avoid:

  • Selecting the wrong assessment year;
  • Using the wrong ITR form;
  • Ignoring bank interest;
  • Not reconciling AIS and Form 26AS;
  • Reporting incorrect capital gains;
  • Claiming ineligible deductions;
  • Selecting the wrong tax regime;
  • Missing foreign income or foreign assets where reporting applies;
  • Claiming incorrect TDS;
  • Forgetting self-assessment tax details; and
  • Filing the return but not completing verification.

Taxpayers with business or professional income can make ITR preparation considerably easier by maintaining proper accounting and tax records throughout the year.

https://taxclear.in/accounting-services/

Can You Correct an ITR After Filing?

Yes, subject to the applicable conditions and time limits.

If you discover an error after filing, a revised return may be the appropriate solution while revision is legally available.

In eligible circumstances, an Updated Return (ITR-U) may be available after the normal filing/revision period, subject to statutory restrictions and additional tax consequences.

ITR-U should not be treated as a substitute for filing an accurate original return on time.

What Happens After Filing ITR?

Once the return is filed and verified, the Centralised Processing Centre (CPC) processes it.

Processing may ultimately result in:

  • No demand and no refund;
  • Refund due; or
  • Tax demand.

Taxpayers should therefore monitor their registered email address, mobile number and e-Filing account.

If the Department makes an adjustment or raises a demand, review the computation carefully instead of ignoring the communication.

Income-tax Act, 2025: Important Change from 1 April 2026

The Income-tax Act, 2025 came into effect from 1 April 2026 and introduces the concept of a Tax Year in place of the previous year/assessment year framework for income governed by the new Act.

This creates an important transition during 2026:

Income earned during FY 2025-26 → AY 2026-27 → Income-tax Act, 1961

Income earned from 1 April 2026 → Tax Year 2026-27 → Income-tax Act, 2025

Therefore, a taxpayer may currently be filing the AY 2026-27 ITR under the old Act while dealing with current-year tax compliance under the new Act.

FAQs

What is ITR?

ITR stands for Income Tax Return. It is the prescribed return through which taxpayers provide details of income, deductions, taxes paid and other required information to the Income Tax Department.

How to file ITR online?

Log in to the Income Tax e-Filing portal and go to e-File → Income Tax Returns → File Income Tax Return. Select AY 2026-27 for FY 2025-26, choose the correct ITR form, verify the pre-filled details, report all applicable income and deductions, check taxes paid, submit the return and complete e-verification.

Which assessment year should I choose for FY 2025-26?

For income earned between 1 April 2025 and 31 March 2026, select AY 2026-27.

Which ITR form should a salaried employee use?

An eligible resident salaried individual may use ITR-1 if all prescribed conditions are satisfied. However, being salaried does not automatically mean ITR-1 is the correct form.

Can I file ITR if no tax is payable?

Yes. A taxpayer can still have an ITR filing requirement even when the final tax payable is nil. Filing may also be necessary or useful for purposes such as claiming an eligible refund or carrying forward certain losses.

Is ITR filing complete after submitting the return?

No. After submission, the return must also be properly verified through an eligible verification method.

Final ITR Filing Checklist

Before completing your Income Tax Return, confirm that you have selected AY 2026-27, chosen the correct ITR form, reconciled AIS and Form 26AS, reported all applicable income, selected the appropriate tax regime, claimed only eligible deductions and tax credits, checked your bank details and reviewed the final tax or refund computation.

Most importantly, do not treat ITR filing as simply copying figures from Form 16 into the portal. A properly prepared Income Tax Return should reconcile your income, bank information, investments, capital gains, deductions, TDS and taxes paid before submission.

For professional Income Tax Return filing assistance:

https://taxclear.in/itr-filing/

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