Step by step procedure to link PAN to Aadhaar on the new e-filing portal's home page. This service is available for both registered and unregistered users. The UIDAI has made it mandatory to link Aadhaar with PAN by December 31, 2025. PAN cards not linked by the deadline will be deactivated starting January 1, 2026. For new applicants, linking Aadhaar during PAN registration will be compulsory. PAN Aadhaar link online: Amid the CBDT notification asking PAN holders using Aadhaar Enrolment ID to link Aadhaar number by December 31, 2025, let's have a look on to how link Aadhaar and PAN online e-Filing Portal. For new applicants of PAN card, the Aadhaar PAN linking is done automatically during the application stage. For existing PAN holders, who were allotted PAN on or before 01-07-2017 it is mandatory to link PAN with Aadhaar . The Link Aadhaar service is available to individual taxpayers (both registered and unregistered on e-Filing Portal). If you do not link your PAN with the Aadhaar till 30 th June 2023, your PAN will become inoperative. However, people who fall under the exempted category ...