ITR Filing Last Date 2026 — All Five Deadlines

ITR Filing Last Date explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.

The ITR filing last date in 2026 for AY 2026-27 is 31 July 2026 for non-audit ITR-1 and ITR-2 filers, 31 August 2026 for non-audit ITR-3 and ITR-4 filers, 31 October 2026 for audited assessees, 30 November 2026 where a section 92E report is required, and 31 December 2026 for a belated or revised return.

The five dates

The class of assessee is what decides the answer. Nothing about the size of the income or the complexity of the return changes it.

Which year 2026 refers to

The ambiguity behind most searches for the ITR filing last date 2026 is that "2026" can mean either the year you are filing in or the year you earned in. For dates falling in calendar 2026, the relevant year is:

• Financial year / previous year: 1 April 2025 to 31 March 2026
• Assessment year: 2026-27
• Governing statute: the Income-tax Act, 1961

Which class sets your ITR filing last date 2026

The two non-audit dates split on the form, not the income

This is the distinction that produced the most missed deadlines this year, because both groups are "not liable to audit" and people assume that means one date.

• 31 July 2026 — ITR-1 and ITR-2. Salary, one or more house properties, capital gains, and income from other sources. No business or professional income.
• 31 August 2026 — ITR-3 and ITR-4, where accounts are not liable to audit. Business or professional income: freelancers, consultants, small traders, and presumptive filers under sections 44AD, 44ADA and 44AE.

So the moment a taxpayer has business or professional income and files ITR-3 or ITR-4 without an audit obligation, they move off 31 July. A salaried person with a side consultancy that pushes them onto ITR-3 is in the later group, not the earlier one — the form follows the nature of the income, and the date follows the form.

The audited class

This is the group most often misclassified, so it is worth setting out. The 31 October date applies to:

• a company — because of its statutory audit, regardless of turnover;
• a person, other than a company, whose accounts are required to be audited under the Income-tax Act or under any other law in force; and
• a working partner of a firm whose accounts are required to be audited.

The working-partner rule catches people out every year. An individual who is a working partner in an audited firm does not use either non-audit date, because their share of profit is not final until the firm's audited accounts are.

Note also that the audited class must furnish the audit report a month earlier — 30 September 2026 in the ordinary case, 31 October 2026 in a section 92E case. The report deadline and the return deadline are separate obligations.

What missing the ITR filing last date 2026 costs

Three consequences follow, and they are cumulative rather than alternative.

Interest under section 234A

Interest runs on the tax payable for the period of delay, from the day after the due date. It scales with the outstanding tax, so it is the expensive item for anyone with a real balance to pay.

Fee under section 234F

A flat fee applies for furnishing the return after the due date. Being flat, it matters proportionately more to a small taxpayer than to a large one.

Loss of carry forward

Certain losses cannot be carried forward if the return is not furnished within the section 139(1) date. For a loss year this is usually the largest cost of all, because it removes a set-off against future profits entirely.

Belated and revised returns — 31 December 2026

A return not filed by the due date can still be filed as a belated return under section 139(4), and a return already filed can be corrected by a revised return under section 139(5). Both windows for AY 2026-27 close on 31 December 2026.

Two points are worth being clear about:

• A belated return does not undo the consequences above. Interest, fee and the carry-forward restriction all still apply.
• A revised return filed within the window replaces the original for all purposes, and there is no penalty for revising a return that was itself filed on time.

After 31 December 2026

Once the belated window closes, the remaining route is an updated return under section 139(8A). It is available for a longer period but it is materially more restricted — it requires payment of additional tax, and it cannot be used to claim or increase a refund, or to reduce the tax liability shown earlier. It is a mechanism for disclosing more income, not for fixing a return in the ordinary sense.

If a date is extended

CBDT can extend a date by order under section 119. Two cautions apply to any such order:

• An order that moves the return date does not automatically move the audit report date, and vice versa. Read what the order actually says.
• Extension orders have in the past expressly preserved section 234A interest from the original date where self-assessment tax exceeded a threshold. A headline extension is not necessarily a free one.

Nothing on this page asserts that any AY 2026-27 date has been extended. Verify the current position on the e-filing portal before relying on a date.

Checklist

• Establish the class of assessee first — that alone fixes the ITR filing last date 2026 for you.
• Check which form applies before assuming 31 July — ITR-3 and ITR-4 non-audit filers had until 31 August 2026.
• Check for a working-partner position before assuming either non-audit date.
• Where audit applies, treat the report deadline as a separate, earlier obligation.
• Reconcile TDS, TCS and advance tax credits against Form 26AS and the annual information statement before filing.
• Pay self-assessment tax before filing so that section 234A interest stops running.
• In a loss year, treat the section 139(1) date as hard — carry forward depends on it.
• Diarise 31 December 2026 as the belated and revised cut-off.