This month
Compliance Calendar: September 2026 Due Dates
GST, TDS/TCS, income tax, ROC and payroll due dates for September 2026. The calendar moves to the new month automatically, with today and the next deadlines highlighted.
10 due dates in September 2026
TDS & TCS payment
Tax deducted / collected at source in August 2026
GSTR-1 (monthly)
Outward supplies for August 2026
PF & ESI payment and return
Contributions for August 2026
Advance tax instalment
45% cumulative
GSTR-3B (monthly)
Summary return and tax payment for August 2026
Professional tax — employer payment
Tax deducted from salaries for August 2026 (as per state rules)
PMT-06 (QRMP taxpayers)
GST payment for August 2026
Tax audit report (Form 3CA/3CB-3CD)
For FY 2025-26
DIR-3 KYC
Annual KYC of directors
Annual general meeting (companies)
Last date to hold AGM for FY 2025-26
Dates shown are statutory due dates and are subject to extensions notified by the government. If a due date falls on a holiday, check the portal for the applicable date. Confirm on the GST, income tax, TRACES and MCA portals before filing.
FAQ
Due Date FAQs
When is GSTR-1 due in September 2026?
Monthly GSTR-1 is due on 11 September 2026 (Outward supplies for August 2026).
When is GSTR-3B due in September 2026?
Monthly GSTR-3B is due on 20 September 2026 (Summary return and tax payment for August 2026). Quarterly (QRMP) filers have different dates in the month after each quarter.
When must TDS be deposited in September 2026?
TDS & TCS payment is due on 7 September 2026 — Tax deducted / collected at source in August 2026.
What happens if a due date is extended?
The government sometimes extends due dates by notification. BMA updates this calendar when that happens; always confirm on the official portal before filing.
Can BMA track due dates for my business?
Yes. BMA tracks GST, TDS, income tax, ROC and payroll deadlines for clients and handles the filings.
Never miss a due date
BMA tracks GST, TDS, income tax and ROC deadlines for clients every month.