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Compliance Calendar - October 2026

Keep track of important GST, TDS, Income Tax, payroll and company filing deadlines in one easy-to-use calendar.

Important Due Dates

Browse the key compliance dates listed for October 2026.

▣   OCTOBER 2026
Due DateCategoryCompliancePeriod / Notes
07 Oct 2026Income Tax & TDSTDS / TCS DepositSeptember 2026
10 Oct 2026GSTGSTR-7 & GSTR-8September 2026
11 Oct 2026GSTGSTR-1 — MonthlySeptember 2026
13 Oct 2026GSTGSTR-1 — QRMP / QuarterlyGSTR-5 & GSTR-6July–September / September, as applicable
15 Oct 2026PF & ESIPF & ESI ContributionsSeptember 2026
15 Oct 2026ROC & CompanyADT-1Generally filed within 15 days of the AGM, where applicable
18 Oct 2026GSTCMP-08 — Composition TaxpayersJuly–September 2026
20 Oct 2026GSTGSTR-3B — MonthlySeptember 2026
21 Oct 2026*Income TaxTax Audit ReportAY 2026–27 — date/extension must be verified against the latest CBDT notification
22 Oct 2026GSTGSTR-3B — QRMP, Category I StatesQuarterly, where applicable
24 Oct 2026GSTGSTR-3B — QRMP, Category II StatesQuarterly, where applicable
30 Oct 2026ROC & CompanyAOC-4 / AOC-4 XBRLFiling deadline depends on AGM date and applicable rules
30 Oct 2026LLPLLP Form 8FY 2025–26
31 Oct 2026Income Tax & TDSQuarterly TDS / TCS ReturnsForms 24Q, 26Q, 27Q (TDS) and 27EQ (TCS)July–September 2026
31 Oct 2026MSMEMSME Form IApril–September disclosure of outstanding dues, where applicable
ⓘ Important: Please verify due dates before filing.
This calendar is a general reference prepared from the supplied compliance sheet. Due dates, extensions and applicability may change under government notifications and depend on taxpayer type, state, filing frequency and AGM date. The starred tax-audit date and all statutory deadlines should be verified against current official notifications before relying on them.

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