31 Oct 26 Employees' Enrolment Campaign 2026 allows enployers to enrol left-out employees (who joined between 01.04.2009–31.03.2026) at a nominal ?100 damages, with employee share waived if not previously deducted — available even to establishments under inquiry.

31 Oct 26 Option to avail QRMP for Oct-Dec onwards.

31 Oct 26 Specified companies (receiving supplies from Micro & Small Enterprises, with outstanding dues exceeding 45 days) to file details of all outstanding dues to Micro or Small Enterprise suppliers, for Apr-Sep. Details of MSME vendors must be given even where payment was made within 45 days.

31 Oct 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.

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

31 Oct 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).

31 Oct 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).

31 Oct 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.

31 Oct 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.

31 Oct 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.

31 Oct 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.

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

31 Oct 26 Filing of the report u/s 92E for international transactions and specified domestic transactions.

31 Oct 26 Filing of the Audit Report u/s 80JJAA(2) for additional employment, where the due date of the ITR is 30 November.

31 Oct 26 Filing of other Audit Reports, where the due date of the ITR is 30 November.

31 Oct 26 Quarterly TDS/TCS statements for Jul-Sep. Details of Form 121 (15G/15H) cases are also to be shown in Form 140. (TCS filing date has also been aligned with TDS.)

31 Oct 26 Deposit of TDS on Virtual Digital Assets u/s 393(1) [Table Sl. No.8(vi)] for September.

31 Oct 26 E-filing of information on declarations received in Form 97 (60), up to 30 September.

31 Oct 26 Statement of Financial Transactions by depositories, registrars and share transfer agents, reporting capital gains on transfer of listed securities or mutual fund units, for Apr-Sep.