Introduction – Main Discussion
For every income-earning person, filing the Income Tax Return (ITR) within the prescribed due date is a critical compliance requirement. Recognising the need for better segmentation and realistic timelines, Budget 2026 has restructured the ITR filing calendar.
Earlier, taxpayers had three original ITR due dates. Post Budget 2026, the government has introduced four distinct due dates, clearly differentiating salaried taxpayers, business cases, audit cases, and transfer pricing cases. Alongside this, the time limit for filing revised returns has been extended, with a late fee mechanism now applicable for delayed revisions.
This article explains only the changes relating to ITR due dates and revised ITR provisions, along with exact dates, strictly based on the expert discussion.
Main Discussion
1. Earlier ITR Due Date Structure (Before Budget 2026)
Before Budget 2026, original ITR filing was governed by three due dates:
- 31 July – For assessees not liable to audit
- 31 October – For assessees liable to audit
- 30 November – For cases involving transfer pricing
This resulted in heavy compliance pressure between July and October every year.
2. New ITR Due Dates Introduced in Budget 2026
Budget 2026 introduces one additional due date, resulting in four separate ITR due dates.
Revised Original ITR Due Dates (Applicable from FY 2025–26 / AY 2026–27)
- 31 July
Applicable to:- Salaried individuals
- Assessees having income from other sources
- Persons not having income from business or profession
- 31 August(Newly introduced)
Applicable to:- Assessees having income from business or profession
- Where audit is not applicable under any law
- Partners of firms not liable to audit
- 31 October
Applicable to:- Assessees whose accounts are liable to audit
- 30 November
Applicable to:- Assessees required to file transfer pricing reports
This change has been introduced through amendments in both the existing Income Tax Act and the new Income Tax Act, 2025, and applies to returns for Financial Year 2025–26 onwards.
3. Applicability of the New Due Dates
As explained in the discussion:
- Under the new Income Tax Act, the amendments take effect from 1 April 2026
- Under the existing Act, amendments apply from 1 March 2026
- Practically, these dates are applicable for Assessment Year 2026–27, i.e., returns filed in 2026
4. Revised ITR – Extended Time Limit up to 31 March
Earlier, both belated ITR and revised ITR could be filed only up to 31 December of the assessment year.
This created an issue:
- If a taxpayer filed a belated return and later identified an error, revision was not possible
To address this:
- The time limit for filing a revised ITR has been extended up to 31 March of the relevant assessment year
This gives taxpayers three additional months to correct genuine mistakes.
5. Late Fee on Revised ITR Filed After 31 December
Along with extension, a late fee has been introduced for delayed revised returns.
Key points
- Revised ITR filed after 31 December but up to 31 March will attract late fee
- This is introduced through Section 234I
- Earlier, revised returns did not attract any late fee
As a result:
- A belated return already attracts late fee
- If such belated return is revised after 31 December, late fee applies again
- This effectively results in double late fee in delayed cases
Practical Impact / Expert View
From a professional standpoint, these changes:
- Distribute compliance workload more evenly
- Provide fair revision opportunity to belated filers
- Introduce financial discipline for delayed corrections
- Reduce last-minute filing pressure
- Improve overall ITR accuracy and planning
Taxpayers must now track due dates carefully and avoid unnecessary delays.
Conclusion – Key Takeaways
- ITR filing now has four due dates:
31 July, 31 August, 31 October, and 30 November - 31 August introduced for non-audit business cases
- Revised ITR can now be filed up to 31 March
- Late fee applies on revised returns filed after 31 December
- Changes apply from FY 2025–26 / AY 2026–27
- Timely filing is more important than ever
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