| 31-10-2026 |
Income Tax |
Filing of quarterly statement in Form No. 140 (Income-tax Rules, 2026) by deductors responsible for deduction of tax at source on non-salary payments such as commission, brokerage, professional fees, rent, etc. made to residents for the quarter ending September 30, 2026 |
| 31-10-2026 |
Income Tax |
Submission of a report from a Chartered Accountant in Form No. 3CEJA (Income-tax Rules, 1962) for the previous year 2025-26 for the purpose of section 9A (Income-tax Act, 1961) regarding fulfilment of certain conditions by an eligible investment fund. |
| 31-10-2026 |
Income Tax |
Filing of quarterly statement of collection of tax at source under section 397(3)(b) of the Income-tax Act, 2025 in Form No.143 (Income-tax Rules, 2026) for the quarter ending September 30, 2026 |
| 31-10-2026 |
Income Tax |
Filing of quarterly statement of TDS in Form No. 144 (Income-tax Rules, 2026) in respect of payments other than salary made to non-residents for quarter ending September 30, 2026 |
| 31-10-2026 |
Income Tax |
Statement by scientific research association, company university, college or other association or Indian scientific research company as required by rules 33, 34 and 35 of the Income-tax Rules, 2026 (if due date of submission of return of income is October 31, 2026) |
| 31-10-2026 |
Income Tax |
Intimation in Form No. 175 (Income-tax Rules, 2026) by a pension fund in respect of each investment made in India for quarter ending September 2026 |
| 31-10-2026 |
Income Tax |
Intimation in Form II by Sovereign Wealth Fund in respect of investment made in India for quarter ending September, 2026 |
| 31-10-2026 |
Income Tax |
Furnishing of Form No. 10BBD (Income-tax Rules, 1962) reporting details of funds received from eligible persons, directly or through an Alternative Investment Fund, during the Previous Year 2025-26 (if the assessee is required to submit return of income on or before October 31, 2026) |
| 31-10-2026 |
Income Tax |
Intimation by a designated constituent entity, resident in India, of an international group in Form No. 3CEAB (Income-tax Rules, 1962) for the accounting year 2025-26 |
| 31-10-2026 |
Income Tax |
Furnishing of Statement in Form No. 98 (Income-tax Rules, 2026) to the concerned Director/Joint Director (Intelligence and Criminal Investigation) containing declaration received in Form No. 97 (Income-tax Rules, 2026) during April 1, 2026 to September 30, 2026 |
| 31-10-2026 |
Income Tax |
Filing intimation in Form No.3CEAC (Income-tax Rules, 1962) by a constituent entity resident in India (whose parent entity is not resident in India), notifying the prescribed authority of the details of the parent entity/alternate reporting entity for Country-by-Country Reporting purposes. (assuming reporting accounting year is January 1, 2025, to December 31, 2025) |
| 31-10-2026 |
Income Tax |
Furnishing of certificate of foreign inward remittance in Form No.10H (Income-tax Rules, 1962) by a resident individual being an author/patentee claiming deduction under Section 80QQB/Section 80RRB (Income-tax Act, 1961) in respect of income earned from any source outside India (if the assessee is required to submit the return of income on or before October 31, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of Form No.3CT (Income-tax Rules, 1962) by the transferor of shares or interests in, a company or an entity that derives its value substantially from assets located in India, duly certified by an accountant for apportionment of income attributable to assets located in India (if the assessee is required to submit the return of income on or before October 31, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of statement in Form No.10-EE (Income-tax Rules, 1962) for exercising the option to claim relief under Section 89A (Income-tax Act, 1961) for income arising from retirement benefit account maintained in a notified country at the time of withdrawal or redemption (if the assessee is required to submit the return of income on or before October 31, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of certificate in Form No.10-IJ (Income-tax Rules, 1962) issued by a Chartered Accountant certifying the annual statement of exempt income of the specified fund, being a category-III AIF, under Section 10(23FF) (Income-tax Act, 1961) (if the assessee is required to submit the return of income on or before November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of report of audit of the accounts of an assessee, other than a company or a co-operative society, in Form No.3AE (Income-tax Rules, 1962) under Section 35E(6) (Income-tax Act, 1961) for the previous year 2025-26 (if the assessee is required to submit return of income on or before November 30, 2026)
Furnishing of report of audit of the accounts of an assessee, other than a company or a co-operative society, in Form No.3AE (Income-tax Rules, 1962) under Section 35D(4) (Income-tax Act, 1961) for the previous year 2025-26 (if the assessee is required to submit return of income on or before November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of audit report in Form No.3CE (Income-tax Rules, 1962) under Section 44DA (Income-tax Act, 1961) by a non-resident and foreign company for the previous year 2025-26 (if the assessee is required to submit return of income on November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing report in Form No.10DA (Income-tax Rules, 1962) certifying the claim for additional employee cost under Section 80JJAA (Income-tax Act, 1961) during the previous year 2025-26 (if the assessee is required to submit return of income on November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of Audit Report in Form No.66 (Income-tax Rules, 1962) by tonnage tax company under clause (ii) of Section 115VW (Income-tax Act, 1961) for the previous year 2025-26 (if the company is required to submit return of income on November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing report under Section 115JB (Income-tax Act, 1961) in Form No.29B (Income-tax Rules, 1962) for computing the book profits of the company during the previous year 2025-26 (if the assessee is required to submit return of income on November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing report under Section 115JC (Income-tax Act, 1961) in Form No.29C (Income-tax Rules, 1962) for computing Adjusted Total Income and Alternate Minimum Tax of the person other than company during the previous year 2025-26 (if the assessee is required to submit return of income on November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of an annual statement of exempt income under Section 10(4D) (Income-tax Act, 1961) and income taxable under Section 115AD (Income-tax Act, 1961) in Form No.10-IK (Income-tax Rules, 1962) (if assessee is required to submit return of income by October 31, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of statement in Form No.3CFA (Income-tax Rules, 1962) for exercising the option to pay tax at a concessional rate under Section 115BBF (Income-tax Act, 1961) for income in the nature of royalty arising from patent developed and registered in India (if the assessee is required to submit return of income by October 31, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of Form No.10E (Income-tax Rules, 1962) by an employee claiming relief under Section 89 (Income-tax Act, 1961) when salary is paid in arrears or in advance, etc. (if the assessee is required to submit the return of income on or before October 31, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of statement in Form No.3AF (Income-tax Rules, 1962) containing the particulars of expenditures specified under Section 35D(2)(a) (Income-tax Act, 1961) (if the assessee is required to submit the return of income on or before November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of the report in Form No.3CEA (Income-tax Rules, 1962) relating to computation of capital gains in case of slump sale taxable under Section 50B (Income-tax Act, 1961) (if the assessee is required to submit return of income on or before November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of the certificate in Form No.62 (Income-tax Rules, 1962) by the amalgamated company, confirming achievement of the prescribed production level and its continuation in subsequent years. (if the company is required to submit return of income on or before October 31, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of Audit Report in Form No.10CCB (Income-tax Rules, 1962) by assessee claiming deduction under Section 80-I , Section 80-IA , Section 80-IB or section Section 80-IC (Income-tax Act, 1961) (if the assessee is required to submit the return of income on or before November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of report in Form No.10CCF (Income-tax Rules, 1962) certifying that the amount of deduction under Section 80LA (Income-tax Act, 1961) has been correctly claimed during the previous year 2025-26 (if the assessee is required to submit return of income on or before October 31, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of certificate in Form No.10CCD (Income-tax Rules, 1962) by a resident individual being an author (including a joint author) claiming deduction under Section 80QQB (Income-tax Act, 1961) in respect of royalty income (if the assessee is required to submit return of income on or before October 31, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing audit report in Form No.3AC (Income-tax Rules, 1962) by assessee claiming deduction under Section 33AB (Income-tax Act, 1961) for the previous year 2025-26 (if the assessee is required to submit return of income on November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing audit report in Form No.3AD (Income-tax Rules, 1962) by assessee claiming deduction under Section 33ABA (Income-tax Act, 1961) for the previous year 2025-26 (if the assessee is required to submit return of income on November 30, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of Form No. 5C (Income-tax Rules, 1962) containing details of attribution of capital gain taxable under Section 45(4) (Income-tax Act, 1961) to the capital asset remaining with the firm, AOP, or BOI after reconstitution (if the firm, AOP, or BOI is required to furnish return of income on or before October 31, 2026) |
| 31-10-2026 |
Income Tax |
Furnishing of annual statement in Form No. 10-II (Income-tax Rules, 1962) in respect of exempt income under Section 10(23FF) (Income-tax Act, 1961) by specified fund, being a category-III AIF (if assessee is required to submit return of income on or before October 31, 2026) |
| 31-10-2026 |
Income Tax |
Filing of quarterly statement in Form No. 138 (Income-tax Rules, 2026) by employers responsible for TDS from salaries paid to employees under section 392 or by specified bank in respect of income paid to specified senior citizen under section 393(1) [Table: Sl. No. 8(iii)] of the Income-tax Act, 2025 for the quarter ending September 30, 2026 |
| 31-10-2026 |
Festival |
National Unity Day |
| 30-10-2026 |
Income Tax |
Furnishing of challan-cum-statement in Form No. 141 (Income-tax Rules, 2026) in respect of deduction of tax under section 393(1) [Table Sl. No. 2(i), 3(i), 6(ii) & 8(vi)] of the Income-tax Act, 2025 for the month of September 2026. |
| 29-10-2026 |
MCA |
The MCA form for filing financial statements is AOC-4. Hence, Form AOC-4 is submitted with the MCA for each Financial Year within 30 days of a company's Annual General Meeting. The due date of conducting AGM is on or before the 30th September, 26 following the end of financial year. |
| 29-10-2026 |
Festival |
Karwa Chauth |
| 26-10-2026 |
Festival |
Maharishi Valmiki Jayanti |
| 25-10-2026 |
Festival |
Sharad Purnima |
| 24-10-2026 |
GST |
GSTR-3B is a self-declared summary GST return filed for States of Himachal Pradesh, Punjab, Uttarakhand, Haryana, Rajasthan, Uttar Pradesh, Bihar, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Assam, West Bengal, Jharkhand and Odisha, the Union territories of Jammu and Kashmir, Ladakh, Chandigarh and Delhi |
| 22-10-2026 |
GST |
GSTR-3B is a self-declared summary GST return filed for States of Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana and Andhra Pradesh, the Union territories of Daman and Diu, Dadra and Nagar Haveli, Puducherry, Andaman and Nicobar Islands and Lakshadweep |
| 21-10-2026 |
Income Tax |
Due date for filing of audit report under section 44AB (Income-tax Act, 1961) for the assessment year 2026-27 in the case of a corporate-assessee or non-corporate assessee (who is required to submit his/its return of income on October 31, 2026) - As per the CBDT press release dated 28 September 2026, the due date for furnishing tax audit reports for AY 2026 - 27 has been extended
30 September - 21 October 2026 |
| 20-10-2026 |
GST |
Summary of outward taxable supplies and tax payable by a person supplying OIDAR services |
| 20-10-2026 |
GST |
Summary of outward supplies, ITC claimed, and net tax payable for taxpayers with turnover more than Rs.5 crore in the last FY or have not chosen the QRMP scheme for the quarter of Jul - Sep, 26 |
| 20-10-2026 |
Festival |
Dussehra |
| 20-10-2026 |
Festival |
Buddha Jayanti |
| 19-10-2026 |
Festival |
Maha Navami |
| 19-10-2026 |
Festival |
Durga Ashtami |
| 19-10-2026 |
Festival |
Durga Puja |
| 18-10-2026 |
GST |
Quarterly Challan-cum-statement to be furnished by composition dealers |
| 17-10-2026 |
Festival |
Saraswati Puja |
| 15-10-2026 |
Income Tax |
Issue of certificate in Form No. 132 (Income-tax Rules, 2026) under section 395(4) of the Income-tax Act 2025 for tax deducted at source under section 393(1) [Table Sl. No. 2(i), 3(i), 6(ii) & 8(vi)] of the Income-tax Act 2025 in the month of August, 2026 |
| 15-10-2026 |
Income Tax |
Furnishing of statement in Form No. 92 (Income-tax Rules, 2026) by the specified fund or stock broker in respect of a non-resident referred to in rule 157 for the quarter ending September 30, 2026 |
| 15-10-2026 |
Income Tax |
Statement in Form No. 1 (Income-tax Rules, 2026) by the stock exchange for the month of September 2026, in respect of transactions in which client codes have been modified after registering in the system. |
| 15-10-2026 |
Income Tax |
Furnishing of quarterly statement in Form No. 148 (Income-tax Rules, 2026) to be furnished by a unit of IFSC, as referred to section section 147(1)(b) of the Income-tax Act, 2025, in respect of remittances made for the quarter ending September 30, 2026 |
| 15-10-2026 |
Income Tax |
Furnishing of quarterly statement in Form No. 147 (Income-tax Rules, 2026) to be furnished by an authorised dealer in respect of remittances made for the quarter ending September 30, 2026 |
| 15-10-2026 |
PF & ESIC |
PF deducted from the Employees salary in the month of Sep, 25, needs to be paid on or before 15th of Oct, 2026
The payment of ESIC is made by every employer to the ESIC department on a monthly basis. The due date for ESIC is 15th Oct, 2026 |
| 13-10-2026 |
GST |
Summary of outward taxable supplies and tax payable by a
non-resident taxable person |
| 13-10-2026 |
GST |
GSTR 6 is a monthly return for Input Service Distributors (ISD) to provide the details of their inward supplies & distributed Input Tax Credit (ITC). |
| 13-10-2026 |
GST |
Summary of outward supplies by taxpayers who opted for QRMP scheme. The taxpayers who have not uploaded B2B invoices using IFF for July & Aug 26, should upload all the three months invoices in quarterly GSTR-1. |
| 11-10-2026 |
GST |
Summary of outward supplies where turnover exceeds Rs.5 crore or have not chosen the QRMP scheme for the quarter of Jul - Sep, 26 |
| 11-10-2026 |
Festival |
Navratri |
| 10-10-2026 |
GST |
Summary of Tax Deducted at Source (TDS) and deposited under GST
laws for the month of September, 2026 |
| 10-10-2026 |
GST |
Summary of Tax Collected at Source (TCS) and deposited by e-commerce operators under GST laws for the month of September, 2026 |
| 08-10-2026 |
Festival |
Indian Air Force Day |
| 07-10-2026 |
Income Tax |
Due date for deposit of tax deducted/collected for the month of September 2026. However, all sum deducted/collected by an office of the government shall be paid to the credit of the Central Government on the same day where tax is paid without production of challan |
| 07-10-2026 |
Income Tax |
Due date for deposit of TDS for the period July 2026 to September 2026 when Assessing Officer has permitted quarterly deposit of TDS under section 392(1) or 393(1) [Table Sl. Nos. (1)(i) and (ii), and 5(ii) and (iii)] of the Income-tax Act, 2025 |
| 07-10-2026 |
Income Tax |
Uploading of declarations received in Form No. 127 (Income-tax Rules, 2026) from the buyer in the month of September, 2026 |
| 07-10-2026 |
Income Tax |
Upload the declarations received from recipients in Form No. 121 (Income-tax Rules, 2026) during the quarter ending September, 2026 |
| 07-10-2026 |
Income Tax |
Due date for furnishing Form No. 137 (Income-tax Rules, 2026) by an office of the Government where TDS/TCS for the month of September, 2026 has been paid without the production of a challan. |
| 02-10-2026 |
Festival |
Gandhi Jayanti |
| 02-10-2026 |
Festival |
Lal Bahadur Shastri Jayanti |
| 01-10-2026 |
Festival |
Swachhata hi Seva |
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