ITR-4 Late Filing After 31 August 2026: Fee, Interest and Loss-Carry-Forward Impact

By Ravi Sisodia · Reviewed by CA Divyanshu Sengar · Updated 5 October 2026

For AY 2026-27 the ITR-4 due date was 31 August 2026. A taxpayer filing now should separate late fee, interest, belated-return deadline, loss restrictions and verification instead of treating late filing as only a ₹5,000 fee issue.

Finin2min 2-Minute Summary

• The Income Tax Department states that AY 2026-27 ITR-4 was due on 31 August 2026.
• The general AY 2026-27 FAQ states a belated return can be filed up to 31 December 2026, or before completion of assessment, whichever is earlier.
• Section 234F late fee is ₹1,000 where total income does not exceed ₹5 lakh and ₹5,000 otherwise, subject to law and facts.
• Interest can arise separately where tax remained unpaid; late fee does not replace interest.
• Late filing can affect loss carry-forward and other procedural benefits, so compute the full consequence before submission.

Build a late-filing impact sheet

Start with the original due date, date of proposed filing, total income, tax already paid, TDS/TCS, advance tax, self-assessment tax and refund/demand position. Add section 234F fee and interest components separately.

Do not assume a refund case has no late-filing consequence. Loss carry-forward and procedural rights can matter even when final tax payable is nil.

Loss treatment needs its own review

Business and capital losses do not all receive identical treatment when the return is late. Identify the nature of loss and check whether timely filing is a statutory condition for carrying it forward. Do not merge depreciation, house-property and business-loss rules into one blanket statement.

If the taxpayer has no loss, record that fact so the file does not leave the issue unresolved.

Worked case: refund expected after the due date

A presumptive taxpayer has TDS exceeding final tax and expects a refund. The due date has passed. The return should still reconcile AIS/26AS, compute fee/interest if applicable and be filed/verified within the belated-return window. A refund expectation is not a reason to wait until December.

Use the latest utility because the common offline utility was updated after the original ITR-4 due date.

Worked consequence matrix: three late-filing profiles

Profile A has total income below ₹5 lakh, no unpaid tax and no loss carry-forward. The principal filing consequence can be the lower section 234F fee plus the need to complete filing and verification before the belated-return deadline. Profile B has taxable business income with self-assessment tax unpaid since the due date; interest can continue to run separately from the fee. Profile C has a business loss that the taxpayer expected to carry forward; the late-filing consequence may be much more valuable than the fee because timely-return conditions can affect future set-off.

The filing team should therefore produce a one-page matrix showing fee, interest, refund/demand, loss impact and verification status. That makes the decision measurable and prevents the phrase 'only late fee applies' from becoming a default assumption.

• Separate fee, interest and loss impact.
• Show refund/demand after all tax credits.
• Escalate loss cases for return-form/timeliness review.

Late-filing checklist

• ITR-4 eligibility reconfirmed.
• 31 August 2026 due date recorded.
• Belated-return outer date checked.
• 234F fee and interest computed separately.
• Loss carry-forward impact reviewed.
• Current utility used.
• Return e-verified and acknowledgement saved.

Questions readers commonly ask

What is the AY 2026-27 ITR-4 due date?

31 August 2026 according to the Income Tax Department.

What is the belated-return date?

The Department's AY 2026-27 FAQ states 31 December 2026, or earlier completion of assessment.

Is the only consequence a ₹5,000 fee?

No. Interest and loss/procedural consequences can also matter.

Should a refund taxpayer still file quickly?

Yes. Reconcile credits and complete the belated return promptly.

Official / primary sources

• Income Tax Department - ITR-4 FAQ - 31 August due date and late-filing consequences
• Income Tax Returns FAQ AY 2026-27 - Belated return and 234F details
• Income Tax Return downloads - Current AY 2026-27 utility

Disclaimer

Important: General educational and professional-reference material. Verify the current operative law, commencement notification, portal version and exact facts before acting. Educational and professional reference only; confirm the current law, rates and the facts of your case before relying on this page.