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 ... Learn how to link your PAN with Aadhaar online through e-Filing Portal. Find out the prerequisites, payment of fee, submission of request, and status of linking. For existing PAN holders, who were allotted PAN on or before July 1, 2017, it is mandatory to link PAN with Aadhaar. Visit the e-Filing Portal Home page and click on Link Aadhaar in Quick Links section. Alternatively, login to e-filing portal and click on Link Aadhaar in Profile section. It has become a mandatory process to link your PAN with Aadhaar. This is an important process because this will allow your income tax returns to be processed. For new applicants of PAN card, the Aadhaar PAN linking is done automatically.