Compliance Calendar 2026: Key GST, ITR, ROC & Audit Dates Every Business Should Know

Running a business in India means staying ahead of regular tax and corporate compliance deadlines.
Missing a due date — even unintentionally — can lead to penalties, interest, late fees, and avoidable stress.

To help you plan better, here is the ultimate month-by-month Compliance Calendar for 2026, covering:
✔️ GST Returns
✔️ TDS/TCS Due Dates
✔️ ROC Compliance
✔️ Income Tax Filing
✔️ Audit Return Deadlines
✔️ Important Business Forms & Registrations

Bookmark it and stay compliant all year long!

📅 Month-by-Month Compliance Calendar – 2026

January 2026

  •  GST Monthly GSTR-1 (11 Jan)

  •  GST Monthly GSTR-3B (20/22/24 Jan – state wise)

  •  TDS/TCS Monthly Payment (7 Jan)

  •  GSTR-7/8 for TDS/TCS under GST (10 Jan)

  •  Advance Tax Reconciliation & Planning

February 2026

  • GSTR-1 Filing (11 Feb)

  •  GSTR-3B (20/22/24 Feb)

  •  TDS/TCS Deposit (7 Feb)

  •  Check vendor invoices for ITC claiming

March 2026

  • GSTR-1 Monthly (11 March)

  •  GSTR-3B (20/22/24 March)

  •  Final Advance Tax Installment for FY 25–26 (15 March)

  •  TDS/TCS Deposit (7 March)

  • 🎯 Financial Year Closing Prep Begins

April 2026

  • GSTR-1 & 3B filings for March month

  •  TDS/TCS Deposit for March (30 April)

  •  Quarterly TDS Return (Jan–Mar) due (30 April)

  •  Begin Income Tax Computation

May 2026

  •  GSTR-1 (11 May)

  •  GSTR-3B (20/22/24 May)

  •  TDS/TCS Deposit (7 May)

  •  Prepare Balance Sheet & Tax Audit docs

June 2026

  •  GSTR-1 & GSTR-3B filings

  •  TDS/TCS Deposit (7 June)

  •  Due date for TDS Certificate Form 16/16A (15 June)

  • 🎯 IT Return preparation begins

July 2026

  •  Monthly GST filings

  •  TDS/TCS Deposit (7 July)

  • Due date for Individual & Non-Audit ITR Filing (31 July)

  •  Quarterly TCS/TDS Return Q1 (31 July)

August 2026

  • GSTR-1, GSTR-3B

  •  TDS/TCS Monthly Payment (7 Aug)

  •  Audit Books Verification for Companies

  • 🎯 Finalize ROC Filings

September 2026

  •  GST Returns

  •  Tax Audit Report Filing (30 September)

  •  TDS/TCS Monthly Payment (7 Sept)

October 2026

  • GSTR filings

  •  TDS/TCS Deposit (7 Oct)

  •  Income Tax Return Filing for Audit Cases (31 October)

  •  ROC E-filing ADT-1 & AOC-4 (expected 30/31 Oct)

November 2026

  • GSTR-1, 3B

  •  TDS/TCS Deposit (7 Nov)

  •  ROC Form MGT-7/MGT-7A (30 November)

December 2026

  •  TDS/TCS Payment (7 Dec)

  •  GST filings

  •  Extended Tax Audit & ITR Final Window (if applicable)

  • 🎯 Financial planning for FY 2026-27 begins

💡 Why BusinessRights?

Staying compliant can feel overwhelming —
BusinessRights ensures you never miss a deadline!

Our experts handle:
📍 GST & TDS filing
📍 Income Tax & Audit returns
📍 ROC & MCA compliance
📍 Business registration & advisory
📍 Notice resolution and support

Make 2026 your most compliant year yet.
Contact BusinessRights for reminders, filing, and complete compliance support.

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