11 Nov 26 Monthly Return of Outward Supplies for October.

13 Nov 26 Optional Upload of B2B invoices, Dr/Cr notes for October under QRMP scheme.

13 Nov 26 Monthly Return by Non-resident taxable person for October.

13 Nov 26 Monthly Return of Input Service Distributor for October.

14 Nov 26 Issue of TDS certificate for TDS deducted u/s 393(1) [Table Sl. No. 2(i), 3(i), 6(ii) & 8(vi)] in Sep, on purchase of property, rent above ?50,000 pm by certain individuals/HUF where the lease has terminated, certain other payments by individual/HUF and o

15 Nov 26 Issue of TDS certificates for Q2 of TY 2026-27.

15 Nov 26 Issue of TCS certificates for Q2 of TY 2026-27.

15 Nov 26 Details of Deposit of TDS/TCS of October by book entry by an office of the Government.

15 Nov 26 E-Payment of PF for October.

15 Nov 26 Payment of ESI for October

20 Nov 26 Add/amend particulars (other than GSTIN) in GSTR-1 of October. It can be filed after filing of GSTR-1 but before filing corresponding GSTR-3B.

20 Nov 26 Summary Return cum Payment of Tax for October by Monthly filers (other than QRMP). Claim input tax credit (ITC) for FY 25-26 in GSTR-3B. Issue Credit notes for FY25-26 . Reversal of ITC of FY 25-26 where supplier had filed GSTR-1/IFF but not filed GSTR-3B

20 Nov 26 Monthly Return by persons outside India providing online information and data base access or retrieval services, for October. Also to be filed by every registered person providing online money gaming from a place outside India to a person in India.

21 Nov 26 Online application by a new manufacturing domestic company (other than one to whom transfer pricing provisions apply), filing the ITR for the first time, for exercise of the option u/s 115BAB (15% tax).

21 Nov 26 Filing of the MAT/AMT Audit Report etc., where the due date of the ITR is 30 November.

21 Nov 26 Furnishing of declaration u/s 80GG in respect of rent paid for residential accommodation, if the assessee is required to submit the ITR by 31 October, extended to 21 Nov.

21 Nov 26 Furnishing of particulars for claiming relief u/s 89, if the assessee is required to submit the ITR by 31 October, extended to 21 Nov.

21 Nov 26 Online application by a domestic company (other than one to whom transfer pricing provisions apply), for exercise of the option u/s 115BAA (22% tax).

21 Nov 26 Online application by a new manufacturing domestic company (other than one to whom transfer pricing provisions apply), filing the ITR for the first time, for exercise of the option u/s 115BAB (15% tax).

21 Nov 26 Online application by an individual/HUF carrying on business or profession, for exercise of the option u/s 115BAC(1), where the due date of the ITR is 31 October, extended to 21 Nov.

21 Nov 26 Online application by a resident co-operative society, for exercise of the option u/s 115BAD(1), where the due date of the ITR is 31 October, extended to 21 Nov.

21 Nov 26 Online application by a resident manufacturing co-operative society, for exercise of the option u/s 115BAE(1), where the due date of the ITR is 31 October, extended to 21 Nov.

21 Nov 26 Filing of income tax returns by companies, partnership firms etc. (audit applicable).

21 Nov 26 Statement of foreign income offered for tax for the previous year, and of foreign tax deducted or paid on such income, if the due date of the ITR is 31 October, extended to 21 Nov. (can be filed till end of assessment year)

25 Nov 26 Deposit of GST under QRMP scheme for October .

28 Nov 26 Return for October by persons with Unique Identification Number (UIN) like embassies etc to get refund under GST for goods and services purchased by them.

29 Nov 26 Annual Return by OPCs and Small Companies.

29 Nov 26 Annual Return by companies other than OPCs and small companies.

29 Nov 26 Half yearly Audit Report from April to September of Reconciliation of Share Capital by Unlisted Public Companies.

30 Nov 26 Online Application for alternative tax regime if due date of ITR is 30 Nov.

30 Nov 26 Filing of Income Tax Return where Transfer Pricing applicable.

30 Nov 26 E-filing of statement by non-resident u/s 285, having liason office in India, for FY 2025-26.

30 Nov 26 Deposit of TDS on payment made u/s 393(1) [Table Sl. No. 2(i), 3(i), 6(ii) & 8(vi)] for payment of rent above Rs.50,000 pm by an individual or HUF (not liable to tax audit) where the lease has terminated, purchase of property, certain other payments made

30 Nov 26 Statutory Auditor to file Annual return with National Financial Reporting Authority (NFRA) in respect of entities covered in Clause 3(1)(a) to 3(1)(e) of NFRA Rules 2018. It will not cover tax audits, Limited review & Quarterly audits.