ITR Filing Last Date AY 2026-27: All Deadlines, Penalties, and Belated Return Window

ITR Filing Last Date AY 2026-27

The ITR filing season for AY 2026-27 is the first full filing year under the new Income Tax Act 2025 framework. CBDT has notified restructured ITR forms 1 through 7, ITR-V, and ITR-U. The deadlines have also shifted: ITR-3 and ITR-4 filers no longer share the July 31 cutoff with salaried filers, and audit and transfer pricing cases retain their separate windows.

This guide lists every ITR filing last date for AY 2026-27, the penalties under Sections 234F and 234A, the belated return rules, and how the four-year ITR-U window now works.

ITR Filing Last Date AY 2026-27 by Form

The Income Tax Act sets the original due date for filing returns under Section 139(1). For AY 2026-27, the key dates are:

The earliest cutoff is July 31, 2026. The latest is November 30, 2026. After these original dates, only a belated return is possible.

July 31, 2026: Salaried, Pensioner, and Non-Audit Individual Filers

This is the date most filers in India know. It applies to:

• ITR-1 (Sahaj) filers: salaried employees, pensioners, and small landlords with simple income up to Rs 50 lakh. Form 130 (the new TDS certificate that replaced Form 16 from FY 2025-26) is the primary input.
• ITR-2 filers: individuals with capital gains, foreign assets, multiple properties beyond the ITR-1 limit, or income above Rs 50 lakh.
• ITR-5 filers in non-audit cases.

Filing before July 31 keeps your loss carry-forward rights, your refund processing in the regular queue, and avoids the Section 234F late filing fee. Belated filers also lose the ability to switch tax regimes for that year.

For the form-level walkthroughs, see the ITR-1 Sahaj filing guide and the ITR Filing Guide AY 2026-27.

August 31, 2026: ITR-3 and ITR-4 (Non-Audit Business and Presumptive)

The Finance Act 2026 made the August 31 due date permanent for ITR-3 and ITR-4 in non-audit cases. Earlier, these forms shared the July 31 cutoff with salaried filers, with year-by-year extensions when the business community asked for more time. From AY 2026-27 onwards, the extra month is built in.

Who files by August 31:

• ITR-3 filers: individuals and HUFs with proprietorship business income, profession income, or income from a partnership firm as a partner, where Section 44AB tax audit does not apply.
• ITR-4 (Sugam) filers: small businesses opting for presumptive taxation under Section 44AD (turnover up to Rs 2 crore, or Rs 3 crore if 95% of receipts are digital), professionals under Section 44ADA (gross receipts up to Rs 50 lakh, or Rs 75 lakh if 95% of receipts are digital), and goods carriage operators under Section 44AE.

For the ITR-3 and ITR-4 walkthroughs, see the ITR-3 guide for AY 2026-27 and the ITR-4 Sugam filing guide.

October 31, 2026: Tax Audit Cases Under Section 44AB

Taxpayers who fall under a Section 44AB tax audit get an extended return-filing window because the audit report must be filed first. The audit report itself is due by September 30, 2026, and the return then follows by October 31, 2026.

A tax audit is mandatory if:

• Business turnover exceeds Rs 1 crore in the financial year, with the threshold raised to Rs 10 crore if 95% of receipts and 95% of payments are through banking channels (the digital-mode relief under Section 44AB(a)).
• Professional gross receipts exceed Rs 50 lakh in the financial year (Section 44AB(b)).
• A presumptive scheme assessee (Section 44AD or 44ADA) declares lower than the prescribed presumptive profit and total income exceeds the basic exemption limit (Section 44AB(e)).
• Specific cases under Section 44AB(d) and 44AB(c) for certain other assessees.

Companies filing ITR-6 are statutorily required to undergo a tax audit, so their return due date is October 31, 2026.

November 30, 2026: Transfer Pricing and International Transaction Cases

Taxpayers who must file Form 3CEB (transfer pricing report) under Section 92E because they have international transactions or specified domestic transactions get the latest original due date: November 30, 2026. The Form 3CEB is itself due by October 31, 2026, and the return follows a month later.

This date applies to cross-border subsidiaries, Indian companies with associated enterprises abroad, and certain specified domestic transactions where the aggregate value crosses the prescribed threshold. The actual ITR form filed remains ITR-3, ITR-5, ITR-6, or ITR-7 based on the entity type.

Section 234F Late Filing Fee for AY 2026-27

If you file your return after the original due date but on or before December 31, 2026, you owe a Section 234F late filing fee:

The fee is automatic and payable along with your tax liability through an e-Challan inside the income tax e-filing portal. There is no waiver mechanism.

Section 234A Interest on Unpaid Tax

If self-assessment tax is payable when you file late, Section 234A interest at 1% per month or part of a month runs from the day after the original due date until the date of filing. Even one day past the deadline counts as a full month for this calculation. Section 234A is in addition to the Section 234F late filing fee.

For incomplete advance tax payment, Section 234B and Section 234C interest also apply at 1% per month, but those start running from April 1 of the assessment year and from the relevant advance tax instalment dates respectively, independent of when you file.

Belated Return Window: Up to December 31, 2026

Section 139(4) allows a belated return to be filed any time up to December 31, 2026 for AY 2026-27, with the Section 234F late filing fee. The belated return is fully valid for refund claims and tax payment, but the following are lost:

• Carry-forward of losses under most heads is disallowed. Business loss, capital loss (long-term and short-term), and speculative loss cannot be carried forward if the original return is filed late. Only the loss from house property under Section 71B can be carried forward in a belated return.
• Choice between old and new tax regime is locked. You lose the right to switch regimes for that year.
• Some deductions tied to filing on time under Sections 80-IA, 80-IAB, 80-IB, and 80-IC are disallowed.

If you miss the belated return cutoff of December 31, 2026, the only way to file the return for AY 2026-27 is through an updated return (ITR-U).

For the full mechanics of what you lose by filing late, see What Happens If You Miss ITR Filing Deadline in India.

Revised Return: Section 139(5)

If you discover an error after filing your original or belated return, you can file a revised return under Section 139(5) any time up to December 31, 2026 (the same cutoff as the belated return for AY 2026-27). The revised return supersedes the original and the limitation period for assessment runs from the revised filing date.

A revised return cannot fix a return that was treated as invalid for non-verification. If your original return was not e-verified within the 30-day window, the original is treated as never filed and you must file fresh as a belated return.

Updated Return (ITR-U): The 48-Month Window

Section 139(8A) allows an updated return to be filed any time within 48 months from the end of the assessment year. For AY 2026-27, this means ITR-U can be filed up to March 31, 2030. The Finance Act 2025 expanded the earlier 24-month window to 48 months.

ITR-U comes with an additional tax liability over and above the regular tax and interest:

• 25% additional tax if filed within 12 months from the end of the AY (by March 31, 2027 for AY 2026-27).
• 50% additional tax if filed in months 13 to 24 (by March 31, 2028).
• 60% additional tax if filed in months 25 to 36 (by March 31, 2029).
• 70% additional tax if filed in months 37 to 48 (by March 31, 2030).

ITR-U is for paying additional tax, not for claiming a refund or reducing tax liability. You cannot file ITR-U if it would reduce the tax already paid or generate a refund.

For the full ITR-U mechanics, see the ITR-U updated return guide.

E-Verification: 30 Days from Submission

Filing is not enough. You must e-verify the return within 30 days of submission. The e-verification options are Aadhaar OTP, net banking, EVC through a bank account, demat account, ATM, or DSC (digital signature).

If e-verification is not completed within 30 days, the return is treated as never filed. The deadline keeps running. If the original due date has passed by then, you have to refile as a belated return with the Section 234F fee.

The most common reason for an unverified return is a missing or stale Aadhaar-PAN linkage. Confirm the linkage on the income tax portal before you start.

Comparison Table: AY 2026-27 ITR Deadlines at a Glance

What to Do If You Are Approaching the Deadline

The portal's peak load is in the last 72 hours before each deadline. To avoid last-minute portal congestion:

1. Pull source documents now. Form 130 from your employer, Form 16A from banks and others, AIS, TIS, and Form 26AS from incometax.gov.in.
2. Reconcile AIS line by line. A return that contradicts AIS triggers a Section 143(1) intimation and slows refund processing.
3. Decide your tax regime. Run both regimes through the in-portal calculator. The new regime is the default and is usually better for filers without large 80C, HRA, or home loan interest claims.
4. File Form 10E first if you received salary arrears or a back-dated increment. Section 89(1) relief without prior Form 10E is disallowed during processing.
5. Submit and e-verify the same day. Do not leave e-verification for later. The 30-day window is forgiving but the deadline is not.

Tax Garden's tax compliance services handle ITR filing for salaried employees, small businesses, and partnerships with the deadline tracked by form, AIS reconciliation done before the form is locked, and e-verification confirmed on the same day. For the broader filing framework, see the overview of all 7 ITR forms, the ITR-2 guide, and the common ITR filing mistakes guide.

Frequently Asked Questions

What is the last date for ITR filing for AY 2026-27?

The earliest original due date is July 31, 2026 for ITR-1, ITR-2, and ITR-5 (non-audit). August 31, 2026 is the permanent due date for ITR-3 and ITR-4 (non-audit) under the Finance Act 2026. Audit cases have until October 31, 2026 and transfer pricing cases until November 30, 2026. Belated returns can be filed up to December 31, 2026 with a Section 234F fee.

Has the July 31 deadline been extended for AY 2026-27?

Not for ITR-1, ITR-2, or ITR-5 in non-audit cases. They retain the July 31, 2026 original due date. ITR-3 and ITR-4 in non-audit cases now have a permanent August 31 due date under the Finance Act 2026, which is built into the law and is not a year-by-year extension. Audit and transfer pricing cases have their own statutory dates of October 31 and November 30 respectively.

What is the Section 234F late filing fee for AY 2026-27?

Rs 1,000 if your total income for FY 2025-26 is up to Rs 5 lakh, and Rs 5,000 if your total income is above Rs 5 lakh. The fee is automatic and is payable through the e-Challan inside the income tax e-filing portal along with the tax payable. There is no waiver mechanism. The fee applies whenever the return is filed after the original due date but on or before December 31, 2026.

Can I file a belated ITR for AY 2026-27 after December 31, 2026?

No. The belated return window under Section 139(4) closes on December 31, 2026. After that, the only way to file for AY 2026-27 is through an updated return (ITR-U) under Section 139(8A) with additional tax of 25% to 70% on top of the regular tax and interest, depending on when ITR-U is filed within the 48-month window ending March 31, 2030.

What is the due date for tax audit cases under Section 44AB for AY 2026-27?

October 31, 2026 for the income tax return. The tax audit report (Form 3CD) itself is due by September 30, 2026. Tax audit applies if business turnover exceeds Rs 1 crore (Rs 10 crore if 95% of receipts and payments are digital), professional gross receipts exceed Rs 50 lakh, or a presumptive scheme assessee declares lower than the prescribed presumptive profit and crosses the basic exemption limit.

What is the due date for transfer pricing cases for AY 2026-27?

November 30, 2026 for the income tax return. Form 3CEB (transfer pricing report) under Section 92E is due by October 31, 2026. The November 30 date applies to taxpayers with international transactions or specified domestic transactions that require Form 3CEB filing.

What happens if I do not e-verify my ITR within 30 days?

The return is treated as never filed. The deadline continues to run. If the original due date has already passed, you must file again as a belated return under Section 139(4) along with the Section 234F late filing fee. E-verification options are Aadhaar OTP, net banking, EVC through a bank account or demat account, ATM, or DSC. Confirm Aadhaar-PAN linkage before you start filing.

Can I switch between old and new tax regime if I file a belated ITR?

No. Filing the original return on or before the due date is a precondition to choosing or switching the tax regime for the year. A belated return locks you into the default regime applicable to your category of taxpayer (the new regime under Section 115BAC is the default from FY 2024-25 for individuals, HUFs, AOPs, BOIs, and AJPs).

Sources

This guide is verified against the Income Tax Act provisions as amended by the Finance Act 2026, Sections 139(1), 139(4), 139(5), 139(8A), 234A, 234F, 44AB, and 92E, the CBDT notification of ITR forms for AY 2026-27 (March 30, 2026), and the official deadline schedule on incometax.gov.in. Cross-checked against ClearTax, BajajFinserv, Tax2win, and IndiaFilings coverage as of May 2026. Always confirm current due dates against the official CBDT notification on incometax.gov.in before filing, especially for cases involving tax audit or transfer pricing where Form 3CD or Form 3CEB is mandatory.