New Delhi: Several crucial deadlines have been extended in December 2025, including ITR for tax audit cases, ITR filing and PAN and Aadhaar linking. These deadlines will be crucial in ensuring that your financial affairs operate smoothly in the months ahead.

Here is a quick rundown of the important deadlines for December to help you stay compliant and avoid last-minute hassles.

ITR deadline for tax audit cases

The Central Board of Direct Taxes has extended the due date of furnishing of return of income under sub-Section (1) of Section 139 of the Act for the Assessment Year 2025-26 which is October 31, 2025 in the case of assessees referred in clause (a) of Explanation 2 to sub-Section (1) of Section 139 of the Act, to December 10, 2025.

Belated ITR filing deadline

A belated ITR filing happens when an ITR is submitted after the original due date which is permitted by Section 139(4) of the Income Tax Act. Filing a belated return helps you meet your tax obligations, but it involves penalties. You can only file a belated return for FY 2024–25 until December 31, 2025. However, there will be a late fee and interest charged.

PAN and Aadhaar linking deadline

The Income Tax Department has extended the deadline to link their PAN with Aadhaar card to December 31, 2025 for anyone who acquired their PAN using an Aadhaar enrolment ID before October 1, 2024. If you miss this deadline your PAN will become inoperative which will have an impact on your banking transactions, income tax return filing and other financial investments.