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2026 Compliance Calendar· कैलेंडर

Indian audit & compliance calendar.

Never miss a deadline. Complete calendar of ITR, GST, TDS and statutory audit due dates for Indian CA firms.

CategoriesIncome TaxGSTTDS

April 2026

7
Apr
TDS Return Q4 FY 2025-26
Form 24Q, 26Q, 27Q for Q4 (Jan-Mar 2026)
TDS
10
Apr
GST GSTR-7
TDS return for March 2026
GST
11
Apr
GST GSTR-1
Outward supplies for March 2026
GST
13
Apr
GST GSTR-6
ISD return for March 2026
GST
20
Apr
GST GSTR-3B
Summary return for March 2026
GST
30
Apr
Advance Tax Q1
First installment of advance tax for FY 2026-27
Income Tax

May 2026

10
May
GST GSTR-7
TDS return for April 2026
GST
11
May
GST GSTR-1
Outward supplies for April 2026
GST
13
May
GST GSTR-6
ISD return for April 2026
GST
15
May
TDS Payment
TDS payment for April 2026
TDS
20
May
GST GSTR-3B
Summary return for April 2026
GST
31
May
TDS Certificate Q4
Issue Form 16 for FY 2025-26
TDS

June 2026

10
Jun
GST GSTR-7
TDS return for May 2026
GST
11
Jun
GST GSTR-1
Outward supplies for May 2026
GST
13
Jun
GST GSTR-6
ISD return for May 2026
GST
15
Jun
TDS Payment
TDS payment for May 2026
TDS
20
Jun
GST GSTR-3B
Summary return for May 2026
GST
30
Jun
GST Annual Return
GSTR-9 for FY 2025-26
GST

July 2026

10
Jul
GST GSTR-7
TDS return for June 2026
GST
11
Jul
GST GSTR-1
Outward supplies for June 2026
GST
13
Jul
GST GSTR-6
ISD return for June 2026
GST
15
Jul
TDS Payment
TDS payment for June 2026
TDS
20
Jul
GST GSTR-3B
Summary return for June 2026
GST
31
Jul
ITR Filing
ITR for individuals (non-audit cases) FY 2025-26
Income Tax
31
Jul
TDS Return Q1
Form 24Q, 26Q, 27Q for Q1 (Apr-Jun 2026)
TDS

August 2026

10
Aug
GST GSTR-7
TDS return for July 2026
GST
11
Aug
GST GSTR-1
Outward supplies for July 2026
GST
13
Aug
GST GSTR-6
ISD return for July 2026
GST
15
Aug
TDS Payment
TDS payment for July 2026
TDS
20
Aug
GST GSTR-3B
Summary return for July 2026
GST
31
Aug
Tax Audit Report
Form 3CA/3CB/3CD for FY 2025-26
Income Tax

September 2026

10
Sep
GST GSTR-7
TDS return for August 2026
GST
11
Sep
GST GSTR-1
Outward supplies for August 2026
GST
13
Sep
GST GSTR-6
ISD return for August 2026
GST
15
Sep
TDS Payment
TDS payment for August 2026
TDS
15
Sep
Advance Tax Q2
Second installment of advance tax for FY 2026-27
Income Tax
20
Sep
GST GSTR-3B
Summary return for August 2026
GST
30
Sep
ITR Filing (Audit)
ITR for audit cases FY 2025-26
Income Tax

October 2026

10
Oct
GST GSTR-7
TDS return for September 2026
GST
11
Oct
GST GSTR-1
Outward supplies for September 2026
GST
13
Oct
GST GSTR-6
ISD return for September 2026
GST
15
Oct
TDS Payment
TDS payment for September 2026
TDS
20
Oct
GST GSTR-3B
Summary return for September 2026
GST
31
Oct
TDS Return Q2
Form 24Q, 26Q, 27Q for Q2 (Jul-Sep 2026)
TDS

November 2026

10
Nov
GST GSTR-7
TDS return for October 2026
GST
11
Nov
GST GSTR-1
Outward supplies for October 2026
GST
13
Nov
GST GSTR-6
ISD return for October 2026
GST
15
Nov
TDS Payment
TDS payment for October 2026
TDS
20
Nov
GST GSTR-3B
Summary return for October 2026
GST
30
Nov
TDS Certificate Q2
Issue Form 16A for Q2 FY 2026-27
TDS

December 2026

10
Dec
GST GSTR-7
TDS return for November 2026
GST
11
Dec
GST GSTR-1
Outward supplies for November 2026
GST
13
Dec
GST GSTR-6
ISD return for November 2026
GST
15
Dec
TDS Payment
TDS payment for November 2026
TDS
15
Dec
Advance Tax Q3
Third installment of advance tax for FY 2026-27
Income Tax
20
Dec
GST GSTR-3B
Summary return for November 2026
GST
31
Dec
GST Reconciliation
GSTR-9C for FY 2025-26
GST
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Indian Audit Calendar 2026 | Compliance Deadlines for CA Firms | CORAA | CORAA