If the PAN card isn’t connected to Aadhaar, it becomes invalid. The PAN card is not usable for tax-related transactions. The tax refund and its interest would not be available if the PAN is rendered inactive. Additionally, TDS will be billed at a higher rate.
Double the rate in effect at the time of the transaction will be the amount due for TDS.
To link your PAN with Aadhaar, go to incometaxindiaefiling.gov.in, the website of the Income Tax Department. Select the ‘Link Aadhaar’ menu item. After entering your PAN and Aadhaar number, select “Validate.” After entering your name and cellphone number in accordance with your Aadhaar card, click “Link Aadhaar.” Enter the OTP that was sent to your mobile number, then select Validate.