Tax & GST Due Date Calculator

All compliance due dates for AY 2026-27 (FY 2025-26) — ITR, TDS, GST, Advance Tax, Tax Audit, ROC/MCA. Updated with Finance (No.2) Act 2024 amendments including the new 31 August ITR due date for business assessees.

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Finance (No.2) Act 2024 — Key ITR Amendment: A new intermediate due date of 31 August has been inserted for individuals/HUFs/firms having business income where audit is NOT required. Earlier, only two dates existed (31 July / 31 October). See ITR tab for full breakup.

⚠️ Dates based on law as on 01-04-2026 and Finance (No.2) Act 2024. Subject to CBDT/CBIC/MCA extensions. Always verify at incometax.gov.in · gst.gov.in · mca.gov.in

About This Tool

The Due Date Calculator provides a complete schedule of income tax, GST, TDS, and ROC compliance due dates for FY 2026-27. It covers ITR filing, tax audit, advance tax instalments, TDS payment and return filing, GST returns (GSTR-1, GSTR-3B, GSTR-9), GST annual return, and company law filings — with consequences of late filing such as interest, penalty, and late fees.

How to Use

Select the compliance type: Income Tax, TDS, GST, or Companies Act.
Select the specific return or payment type.
Enter your entity type (Individual, Company, Firm, LLP, Trust) and whether you are subject to audit.
The tool displays the applicable due date for FY 2026-27.
Set a calendar reminder based on the due date to avoid late filing penalties.

Frequently Asked Questions

What is the last date to file ITR for FY 2026-27?

31 July 2027 for non-audit individuals and HUFs. 31 October 2027 for audit cases (companies and tax audit cases). Late fee under Section 234F of ₹5,000 (₹1,000 for income below ₹5L) applies if filed after the due date.

What is the penalty for late GST return filing?

Late fee: ₹50/day (₹25 CGST + ₹25 SGST) for regular returns, ₹20/day for nil returns, maximum ₹10,000 per return. Interest at 18% p.a. applies separately on late tax payment.

When is TDS for March due?

TDS deducted in March must be paid by 30 April (instead of the usual 7th of the next month). Q4 TDS/TCS returns are due on 31 May.