New Delhi, July 7 -- Linking PAN with Aadhaar is mandatory under Section 139AA of the Income Tax Act, 1961. While Aadhaar-PAN linking is completed automatically for new PAN applicants during the application process, existing PAN holders allotted a PAN on or before 1 July 2017 must complete the linking process separately.

The Income Tax Department offers the Aadhaar-PAN linking facility on the e-filing portal for both registered and unregistered individual taxpayers.

Here's how you can do it.

PAN is an important identification document used for income tax filing and several financial transactions.

Linking it with Aadhaar helps the government verify taxpayer details, reduce duplicate PAN usage, and improve transparency in financial repo...