Page Contents
5th September : SEZ: MPR filing.
7th September
FEMA: ECB 2 Return.
Income Tax: TDS/TCS remittance for August 2025.
STPI: SERF.
SEZ: SERF.
10th September
GST: GSTR-7 (TDS) for August 2025.
GST: GSTR-8 (TCS) for August 2025.
GST: GST SRM-II (Special procedure for manufacturers of pan masala & tobacco products).
11th September : GST: Filing of GSTR-1 for August 2025.
13th September
GST:
Filing of IFF (Invoice Furnishing Facility) under QRMP scheme for August 2025.
Filing of GSTR-6 by Input Service Distributor (ISD) for August 2025.
14th September : Income Tax: Issue of TDS Certificates (Form 16B, 16C, 16D & 16E) for tax deducted u/s 194-IA, 194-IB, 194M & 194S during July 2025.
15th September
Income Tax:
Advance Tax – 2nd Installment for AY 2026-27.
Due date for filing ITR (Non-Audit Cases) for FY 2024-25.
ESI & PF: Payment & return filing for August 2025.
GST:
GSTR-3B for August 2025.
GSTR-5 (Non-Resident).
GSTR-5A (OIDAR).
20th September
GST: Filing of GSTR-3B for August 2025.
Professional Tax (PT): Payment for August 2025.
25th September : GST: Payment of GST in Form GST PMT-06 for August 2025 by taxpayers under QRMP scheme.
27th September : SEZ: APR for FY 2024-25.
30th September
STPI: SOFTEX.
SEZ: SOFTEX.
FEMA:
Annual Activity Certificate.
Form FLAIR Return (based on audited financials).
MCA:
DIR-3 KYC (for Directors).
Annual General Meeting (AGM) for companies with FY ending 31st March 2025.
Income Tax:
1. Challan-cum-statement in Form 26QB/26QC/26QD/26QE for tax deducted u/s 194-IA, 194-IB, 194M & 194S during August 2025.
2. Due date for filing Tax Audit Report for FY 2024-25 (non-TP cases).
7th October : Income Tax – TDS Payment for September 2025
10th October : GST TDS & TCS Payment/Return for September 2025
11th October : GSTR-1 (Monthly) for September 2025
13th October : GSTR-1 (Quarterly – IFF for QRMP) for July–September 2025
14th October : ADT-1 Filing – Appointment of Auditor (Companies)
15th October
TCS Statement – Form 27EQ
DIR-3 KYC / DIR-3 KYC WEB – Director KYC
EPF & ESI Contributions for September 2025
18th October: CMP-08 Filing (QRMP – Composition Scheme)
20th October : GSTR-3B (Monthly) for September 2025
22nd / 24th October : GSTR-3B (Quarterly – QRMP) for July–September 2025 (22nd — South states; 24th — North/East/West states)
29th October : AOC-4 Filing (Companies – FY 2024–25)
30th October
Form 8 (LLP)—Statement of Account & Solvency (FY 2024–25)
Property TDS Forms – 26QB / 26QC / 26QD for September 2025
TCS Certificate – Form 27D
31st October
Quarterly TDS Returns – Form 24Q / 26Q / 27Q for Q2 (Jul–Sep 2025)
Tax Audit Report Filing (FY 2024–25)
ITR Filing – Audit Cases (AY 2025–26)
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