This month
Compliance Calendar: October 2026 Due Dates
GST, TDS/TCS, income tax, ROC and payroll due dates for October 2026. The calendar moves to the new month automatically, with today and the next deadlines highlighted.
16 due dates in October 2026
TDS & TCS payment
Tax deducted / collected at source in September 2026
GSTR-1 (monthly)
Outward supplies for September 2026
GSTR-1 (QRMP, quarterly)
Outward supplies for Jul–Sep
ADT-1
Auditor appointment filing (within 15 days of AGM)
PF & ESI payment and return
Contributions for September 2026
TCS return (Form 27EQ)
Quarterly TCS statement for Jul–Sep
CMP-08 (composition taxpayers)
Quarterly GST payment for Jul–Sep
GSTR-3B (monthly)
Summary return and tax payment for September 2026
Professional tax — employer payment
Tax deducted from salaries for September 2026 (as per state rules)
GSTR-3B (QRMP) — Category I states
For Jul–Sep; includes Karnataka
GSTR-3B (QRMP) — Category II states
For Jul–Sep; includes West Bengal and Odisha
AOC-4
Financial statements (within 30 days of AGM) for FY 2025-26
LLP Form 8
Statement of account & solvency for FY 2025-26
TDS returns (Forms 24Q / 26Q)
Quarterly TDS statements for Jul–Sep
Income tax return (audit cases)
ITR for FY 2025-26
MSME-1 (half-yearly)
Outstanding dues to micro & small enterprises, Apr–Sep
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 October 2026?
Monthly GSTR-1 is due on 11 October 2026 (Outward supplies for September 2026).
When is GSTR-3B due in October 2026?
Monthly GSTR-3B is due on 20 October 2026 (Summary return and tax payment for September 2026). Quarterly (QRMP) filers have different dates in the month after each quarter.
When must TDS be deposited in October 2026?
TDS & TCS payment is due on 7 October 2026 — Tax deducted / collected at source in September 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.