Union Minister Ashwini Vaishnav on Monday announced the PAN 2.0 project which is set to modernise the Permanent Account Number (PAN) system. PAN 2.0 is introducing a QR code to streamline tax compliance and improve data security for taxpayers. Taxpayers should know that the updated PAN card is optional and free of cost, however, it is important to know its necessity and implications for existing PAN cardholders.