Compliance
Tax Due Date Calendar — FY 2026-27
April 2026 – March 2027 · India · ITR, GST, TDS, Companies Act & LLP
5 compliance dates due within the next 30 days
April 2026
Apr
GSTR-1 (Monthly) — March 2026
Monthly outward supply return for taxpayers with turnover > ₹5 Cr or opted out of QRMP.
March 2026
Apr
GSTR-3B — March 2026 (>5 Cr)
Monthly summary return and tax payment for taxpayers with aggregate turnover > ₹5 Cr.
March 2026
Apr
GSTR-3B — March 2026 (≤5 Cr, Cat I)
Taxpayers in states Cat I (≤5 Cr) — GSTR-3B due by 22nd.
March 2026
Apr
GSTR-3B — March 2026 (≤5 Cr, Cat II)
Taxpayers in states Cat II (≤5 Cr) — GSTR-3B due by 24th.
March 2026
Apr
TDS/TCS Challan — March 2026 (Govt)
Government deductors — TDS/TCS deposit without challan by 7th; with challan by same day.
March 2026
Apr
TDS/TCS Challan — March 2026
Non-government deductors — TDS/TCS for March deducted in Q4 must be deposited by 30th April.
March 2026
Apr
MSME Form-1 (Apr–Sep 2025 period)
Half-yearly return of outstanding dues to MSME suppliers (₹45-day rule) — period October–March.
Oct 2025–Mar 2026
May 2026
May
GSTR-1 (Monthly) — April 2026
Monthly outward supply return for April 2026.
April 2026
May
GSTR-3B — April 2026 (>5 Cr)
Monthly summary return for taxpayers with turnover > ₹5 Cr.
April 2026
May
LLP Annual Return — Form 11
Annual return of LLP on MCA portal for FY 2025-26. Penalty ₹100/day for delay.
FY 2025-26
May
TDS Return Q4 — Form 26Q/24Q
Quarterly TDS return (Jan–Mar 2026) for non-salary and salary TDS. Form 16/16A issuable after filing.
Q4 FY 2025-26
June 2026
Jun
GSTR-1 (Monthly) — May 2026
Monthly outward supply return for May 2026.
May 2026
Jun
Advance Tax Q1 — FY 2026-27
15% of estimated annual tax liability due. Applicable to all assessees other than seniors without business income.
FY 2026-27 Q1
Jun
GSTR-3B — May 2026 (>5 Cr)
Monthly summary return and tax payment for May 2026 (>₹5 Cr turnover).
May 2026
Jun
GSTR-4 (Composition) — FY 2025-26
Annual return for composition taxpayers for the full year FY 2025-26.
FY 2025-26
July 2026
Jul
GSTR-1 (Monthly) — June 2026
Monthly outward supply return for June 2026.
June 2026
Jul
GSTR-3B — June 2026 (>5 Cr)
Monthly summary return and tax payment for June 2026.
June 2026
Jul
ITR Filing — Non-Audit (AY 2026-27)
Last date for filing ITR for individuals/HUFs/firms not subject to tax audit for AY 2026-27 (FY 2025-26).
AY 2026-27
Jul
TDS Return Q1 — Form 26Q/24Q
Quarterly TDS return for April–June 2026. Applies to all deductors (salary + non-salary).
Q1 FY 2026-27
August 2026
Aug
GSTR-1 (Monthly) — July 2026
Monthly outward supply return for July 2026.
July 2026
Aug
GSTR-3B — July 2026 (>5 Cr)
Monthly summary return and tax payment for July 2026.
July 2026
September 2026
Sept
GSTR-1 (Monthly) — August 2026
Monthly outward supply return for August 2026.
August 2026
Sept
Advance Tax Q2 — FY 2026-27
45% of estimated annual tax (cumulative) due. Shortfall attracts interest under Section 234C.
FY 2026-27 Q2
Sept
GSTR-3B — August 2026 (>5 Cr)
Monthly summary return and tax payment for August 2026.
August 2026
Sept
Tax Audit Report — Sec 44AB (AY 2026-27)
Form 3CA/3CB + 3CD with UDIN due by 30 September for audit cases. Penalty ₹1.5 lakh or 0.5% of TO.
AY 2026-27
Sept
DIR-3 KYC for FY 2025-26
Annual DIN KYC (web-form or e-form) for all DIN holders. DIN deactivated if missed; ₹5,000 reactivation fee.
FY 2025-26
October 2026
Oct
GSTR-1 (Monthly) — September 2026
Monthly outward supply return for September 2026.
September 2026
Oct
GSTR-3B — September 2026 (>5 Cr)
Monthly summary return and tax payment for September 2026.
September 2026
Oct
ITR Filing — Audit cases (AY 2026-27)
Last date for ITR filing for companies, firms and individuals subject to tax audit for AY 2026-27.
AY 2026-27
Oct
TDS Return Q2 — Form 26Q/24Q
Quarterly TDS return for July–September 2026.
Q2 FY 2026-27
Oct
LLP Form 8 — Statement of Accounts
Statement of accounts and solvency for LLPs on MCA portal for FY 2025-26.
FY 2025-26
Oct
MSME Form-1 (Apr–Sep 2026 period)
Half-yearly return of outstanding dues to MSME suppliers — April to September 2026 period.
Apr 2026–Sep 2026
November 2026
Nov
GSTR-1 (Monthly) — October 2026
Monthly outward supply return for October 2026.
October 2026
Nov
ITR — Transfer Pricing cases (AY 2026-27)
ITR for assessees required to furnish report under Section 92E (Transfer Pricing).
AY 2026-27
Nov
GSTR-3B — October 2026 (>5 Cr)
Monthly summary return and tax payment for October 2026.
October 2026
December 2026
Dec
Tax Audit Limit Statement to ICAI
Practising CAs must submit statement of tax audits conducted during the year to ICAI by 31 December.
FY 2026-27
Dec
GSTR-1 (Monthly) — November 2026
Monthly outward supply return for November 2026.
November 2026
Dec
Advance Tax Q3 — FY 2026-27
75% of estimated annual tax (cumulative) due by 15 December 2026.
FY 2026-27 Q3
Dec
GSTR-3B — November 2026 (>5 Cr)
Monthly summary return and tax payment for November 2026.
November 2026
Dec
GSTR-9 & 9C Annual Return — FY 2025-26
Annual GST return (GSTR-9) and reconciliation statement (GSTR-9C) for all registered persons for FY 2025-26.
FY 2025-26
January 2027
Jan
GSTR-1 (Monthly) — December 2026
Monthly outward supply return for December 2026.
December 2026
Jan
GSTR-3B — December 2026 (>5 Cr)
Monthly summary return and tax payment for December 2026.
December 2026
Jan
TDS Return Q3 — Form 26Q/24Q
Quarterly TDS return for October–December 2026.
Q3 FY 2026-27
February 2027
Feb
GSTR-1 (Monthly) — January 2027
Monthly outward supply return for January 2027.
January 2027
Feb
GSTR-3B — January 2027 (>5 Cr)
Monthly summary return and tax payment for January 2027.
January 2027
March 2027
Mar
GSTR-1 (Monthly) — February 2027
Monthly outward supply return for February 2027.
February 2027
Mar
Advance Tax Q4 — FY 2026-27
100% of estimated annual tax (cumulative) due. Shortfall after 15 March attracts interest under Sec 234B/C.
FY 2026-27 Q4
Mar
GSTR-3B — February 2027 (>5 Cr)
Monthly summary return and tax payment for February 2027.
February 2027
Standard statutory due dates for FY 2026-27. CBDT / CBIC may notify extensions — verify on official portals before relying on any date.
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