02/09/2026
Compliance Calendar September 2026 | Key Tax & Regulatory Due Dates
Stay updated with the important compliance deadlines for September 2026
with the latest Compliance Calendar compiled by Team B & B TAX.
This calendar covers key due dates relating to:
- Income Tax and TDS/TCS compliance
- GST returns including GSTR-1, GSTR-3B, GSTR-5, GSTR-6 and GSTR-7
- GSTR-8 and IFF under the QRMP Scheme
- Advance Tax – 2nd Instalment
- PF & ESI payments
- Professional Tax
- CCFS 2026 extended deadline
- Tax Audit and related Income Tax forms
- Company and LLP Audit
- AGM last date
- Other important statutory compliances
The major compliance dates in September include 7 September, 10 September, 11 September, 13 September, 15 September, 20 September, 25 September and 30 September 2026.
Businesses, professionals, taxpayers and compliance teams should review the applicability of each requirement and plan their filings and payments well in advance to avoid late fees, interest and other consequences.
Compiled by Team B & B TAX
Tax | Accounting | Compliance | Advisory
For queries:
Call/WhatsApp: 91-9810762660 / 91-9540721079
Email: [email protected] / [email protected]
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