Income tax
September TDS deposit
General monthly TDS payment; government and challan-cum-statement exceptions differ.
Standard rule · Official source
Home / October planner
October 2026 compliance planner
GST, income tax, payroll and company reminders in one place.
Reviewed 4 October 2026 · 24 source-linked reminders
Choose the dates that apply to you. Standard rule dates may be superseded by an extension or a case-specific deadline. Conditional dates depend on the facts stated below. Check the live official portal before filing.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |||
| 5 | 6 | 71 due | 8 | 9 | 102 due | 111 due |
| 12 | 133 due | 14 | 152 due | 16 | 17 | 181 due |
| 19 | 202 due | 211 due | 221 due | 23 | 241 due | 251 due |
| 26 | 27 | 28 | 29 | 303 due | 315 due |
Which QRMP state / UT group applies?
22 October: Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana, Andhra Pradesh, Dadra and Nagar Haveli and Daman and Diu, Puducherry, Andaman and Nicobar Islands, Lakshadweep.
24 October: Himachal Pradesh, Punjab, Uttarakhand, Haryana, Rajasthan, Uttar Pradesh, Bihar, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Assam, West Bengal, Jharkhand, Odisha, Jammu and Kashmir, Ladakh, Chandigarh, Delhi.
October deadlines & reminders
GST
GST
GST
Monthly GSTR-1
September outward supplies for monthly filers. Quarterly filers use 13 October.
Standard rule · Official source
GST
Quarterly GSTR-1
July–September outward supplies for quarterly filers.
Standard rule · Official source
GST
GST
GSTR-5
September return for non-resident taxable persons; registration-expiry timing can be earlier.
Standard rule · Official source
Payroll
EPF contribution / ECR
September wage-month contribution for covered employers.
Standard rule · Official source
Payroll
ESI contribution
September wage-month contribution for covered employers.
Standard rule · Official source
GST
CMP-08
July–September self-assessed tax statement for composition taxpayers.
Standard rule · Official source
GST
Monthly GSTR-3B
September return and tax for monthly filers. QRMP uses 22 or 24 October.
Standard rule · Official source
GST
GSTR-5A
September return for applicable overseas online-service / online-gaming suppliers.
Standard rule · Official source
Income tax
Specified tax audit reports · AY 2026–27
Covered category under CBDT Circular 07/2026. Corresponding covered ITR date is 21 November, not 31 October.
Extended date · Official source
GST
QRMP GSTR-3B · Group 1
July–September quarter; principal place of business in the 22 October state/UT group.
Standard rule · Official source
GST
QRMP GSTR-3B · Group 2
July–September quarter; includes Rajasthan. Use your principal place of business.
Standard rule · Official source
GST
ITC-04 · half-yearly
April–September job-work details where previous-year aggregate turnover exceeds ₹5 crore; smaller principals use annual filing.
Standard rule · Official source
Income tax
September challan-cum-statement cases
For covered transaction-based TDS: 30 days after September month-end. Match the current form and transaction category.
Conditional date · Official source
Company / LLP
LLP Form 8 · standard annual cycle
FY ended 31 March 2026: normal 30-days-after-six-months calculation. Check MCA alerts and any extension before filing.
Conditional date · Official source
Company / LLP
AOC-4 · only if AGM was 30 September
Normal 30-day filing calculation for applicable companies. OPC, producer companies and special cases differ; this is not a universal October deadline.
Conditional date · Official source
Income tax
Salary TDS statement · Form 138
Salary deductors; July–September 2026 (Q2), using the current Tax Year 2026–27 form.
Standard rule · Official source
Income tax
Resident non-salary TDS statement · Form 140
Applicable resident non-salary deductors; July–September 2026 (Q2), using the current Tax Year 2026–27 form.
Standard rule · Official source
Income tax
Non-resident non-salary TDS statement · Form 144
Applicable non-resident non-salary deductors; July–September 2026 (Q2), using the current Tax Year 2026–27 form.
Standard rule · Official source
Income tax
TCS statement · Form 143
Applicable tax collectors; July–September 2026 (Q2), using the current Tax Year 2026–27 form.
Standard rule · Official source
GST
QRMP opt-in / opt-out
Last day of the normal window for the October–December quarter, subject to eligibility.
Standard rule · Official source
Other dates that depend on your business
Company annual returns and auditor appointments depend on the AGM and entity category. State professional tax, licence renewals, export authorisations, notices and registration-expiry deadlines depend on location or your documents. Verify their individual due dates; they cannot all be assigned one October date.
September is the final month of the QRMP quarter: quarterly GSTR-3B applies, rather than treating 25 October as a separate September PMT-06 monthly due date.
Next month: 21 November 2026 is the extended ITR date only for the category covered by CBDT Circular 07/2026. Read the circular.