Compliance

Compliance Calendar for December 2025

Compliance Calendar for the Month of December 2025

Introduction

As December 2025 begins, every business, professional, and taxpayer must stay updated with important statutory deadlines. This month involves multiple return filings under GST, PF, and ESI, along with key annual filings. Missing any due date can result in penalties, late fees, or blocked e-way bills. The following compliance calendar lists all major due dates for December 2025.

 

In Brief

  • Includes all important GST, PF, and ESI filing due dates for December 2025.
  • Covers the annual GST returns (GSTR-9 and 9C) for FY 2024-25.
  • Lists timelines for GSTR-1, GSTR-3B, GSTR-5A, GSTR-6, PF, and ESI.
  • Corrects earlier confusion around CMP-08 and quarterly TDS deadlines.
  • A must-check list for accountants, HR teams, and compliance professionals.

Important Due Dates for GST Returns – December 2025   

Due Date

Form to be Filed

Period

Who Should File?

10.12.2025

GSTR-7

November 2025

Taxpayers required to deduct TDS under GST (Govt. Depts., PSUs, etc.)

10.12.2025

GSTR-8

November 2025

E-commerce operators collecting TCS under GST

11.12.2025

GSTR-1 (Monthly)

November 2025

Regular taxpayers (monthly filers)

13.12.2025

GSTR-1 (IFF)

November 2025

QRMP taxpayers uploading November invoices

13.12.2025

GSTR-5

November 2025

Non-resident taxable persons

13.12.2025

GSTR-6

November 2025

Input Service Distributors (ISD)

20.12.2025

GSTR-5A

November 2025

OIDAR service providers

20.12.2025

GSTR-3B (Monthly)

November 2025

Regular monthly filers

31.12.2025

GSTR-9 & GSTR-9C

FY 2024-25

Annual return + reconciliation for turnover above ₹2 crore (9) and ₹5 crore (9C)

 

 Notes: 

  • CMP-08 for the Oct–Dec 2025 quarter is due 18 January 2026, not in December.

  • QRMP filers’ GSTR-3B for the Oct–Dec 2025 quarter is due in January 2026 (22 or 24 January).

  • Ensure invoices and ITC reconciliations are complete before filing annual returns.

   

Essential Due Dates for Income Tax / PF / ESI Compliance – December 2025   

Due Date

Form / Compliance

Period

Who Should File?

07.12.2025

Deposit of TDS / TCS liability

November 2025

All TDS/TCS deductors

15.12.2025

PF Contribution & ECR Filing

November 2025

Employers under EPFO

15.12.2025

ESI Contribution & Return Filing

November 2025

Employers under ESIC

15.12.2025

Third Installment of Advance Tax

FY 2025-26

All taxpayers are liable for advance tax

30.12.2025

Challan-cum-Statement u/s 194-IA/IB/IM/S

November 2025

Persons deducting TDS on property, rent etc.

 

 Notes: 

  • TDS/TCS returns for the Oct–Dec 2025 quarter are due 15 January 2026, not in December.

  • Advance Tax 3rd installment (for FY 2025-26) must be paid by 15 December 2025.

  • Professional Tax return due dates differ across states; check state portals.

Penalty for Late Filing of GSTR-3B   

  • ₹50 per day (₹25 CGST + ₹25 SGST) for each day of delay.

  • ₹20 per day (₹10 + ₹10) for nil returns.

  • Interest at 18% p.a. on outstanding tax liability.

  • Late fee caps as per Notification 19/2021-CT and subsequent CBIC updates.

Conclusion  

December 2025 is crucial for both monthly GST filers and annual return submitters. Ensure timely filing of GSTR-1, GSTR-3B, PF and ESI contributions, Advance Tax, and the annual GSTR-9/9C returns. Keep an eye on official portals  www.gst.gov.in, www.epfindia.gov.in, www.esic.gov.in, and www.incometax.gov.in for notifications or extensions.

Suggested Read :

Compliance Calendar for November 2025

GST Compliance Calendar For FY2025-26

ITR Compliance Calendar For FY2025-26

LLP Compliance Calendar FY 2025-26

FAQs

1. When is the GSTR-1 due for November 2025?

The GSTR-1 for November 2025 is due on 11 December 2025 for monthly filers. QRMP taxpayers may upload invoices using IFF till 13 December.

2. When is the GSTR-3B due for November 2025?

Monthly GSTR-3B is due by 20 December 2025. QRMP taxpayers will file their quarterly GSTR-3B in January 2026.

3. Who must file GSTR-5A?

Online Information and Database Access or Retrieval (OIDAR) service providers must file GSTR-5A by 20 December 2025 for November transactions.

4. Is CMP-08 due in December 2025?

No. CMP-08 for the Oct–Dec quarter is due on 18 January 2026.

5. When are PF and ESI contributions due for November 2025?

Employers must deposit and file PF and ESI returns by 15 December 2025.

6. When must Advance Tax be paid in December 2025?

The third installment of Advance Tax for FY 2025-26 is due on 15 December 2025.

7. When is the annual GST return (GSTR-9/9C) due?

Both are due on 31 December 2025 for FY 2024-25, unless extended by CBIC.

8. When are TDS returns for Q3 due?

Quarter 3 (Oct–Dec 2025) TDS returns are due on 15 January 2026 for non-government deductors.

9. What is the penalty for late GSTR-3B filing?

₹50 per day for regular returns and ₹20 per day for nil returns plus interest.

10. Where can I check official updates or extensions?

Visit official portals: gst.gov.in, epfindia.gov.in, esic.gov.in, and incometax.gov.in.

Dhruvi

Dhruvi Darji is a Content Writer at Ebizfiling who turned her passion for writing into a full-time career. She holds a Bachelor's degree in Computer Applications from KSV University and has been writing content professionally since 2023. Over time, she has worked on various topics and enjoys creating simple, clear, and helpful content that helps people gain a better understanding. She also holds a 7-band IELTS score, reflecting her strong grasp of language and communication. Beyond work, Dhruvi enjoys journaling and crafting stories.

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