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October 2026 Compliance Calendar

Important GST, TDS, EPF, ESIC & Income Tax due dates for October 2026

07 October 2026 Wednesday
  • Deposit TDS/TCS deducted/collected in September 2026
  • Submit Form 27C / equivalent declaration (if any)
10 October 2026 Saturday
  • GSTR-7 (GST TDS) for September 2026
  • GSTR-8 (GST TCS by E-Commerce Operator) for September 2026
11 October 2026 Sunday
  • GSTR-1 for September 2026 (Turnover above ₹5 Cr or monthly filer)
13 October 2026 Tuesday
  • GSTR-1 for July–September 2026 (QRMP taxpayers)
  • GSTR-5 for September 2026
  • GSTR-6 for September 2026
15 October 2026 Thursday
  • Deposit EPF/ESIC contribution for September 2026
  • EPF & ESIC monthly return filing
  • Form 16A / TDS certificates for Q2 (where applicable)
18 October 2026 Sunday
  • CMP-08 for July–September 2026 (Composition taxpayers)
20 October 2026 Tuesday
  • GSTR-3B for September 2026 (Monthly filers)
  • GSTR-5A for September 2026
  • GSTR-1A amendment filing (if applicable)
21 October 2026 Wednesday
  • Due date for submitting Tax Audit Report under section 44AB for AY 2026-27
22 October 2026 Thursday
  • GSTR-3B for July–September 2026 (QRMP – Category X states)
24 October 2026 Saturday
  • GSTR-3B for July–September 2026 (QRMP – Category Y states)
25 October 2026 Sunday
  • ITC-04 for April–September 2026 (where applicable – turnover > ₹5 Cr)
30 October 2026 Friday
  • Due date for furnishing challan-cum-statement in Form 141 (or 26QB/26QC/26QD/26QE) for September 2026
  • LLP Form 8 (Statement of Accounts) – where applicable
31 October 2026 Saturday
  • Quarterly TDS/TCS returns for Q2 (July–September 2026) – Forms 24Q/26Q/27Q/27EQ or new Forms 138/140/143/144
  • TDS return correction/update filing (if pending)

 

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