What happens if PAN card is not linked to Aadhaar card, read on to understand the implications of not linking PAN with Aadhaar card and penalty details. Providing an incorrect PAN number while filing income tax returns or conducting financial transactions can lead to penalties . The Income Tax Department may impose a fine of up to ₹10,000 for... It is crucial to avoid having duplicate PAN cards, as it is illegal and can lead to serious consequences. Holding multiple PAN cards with the intention to deceive the government or evade taxes can result in fines of up to Rs 10,000, as per section 272B of the Income Tax Act. The PAN -Aadhaar linking fine was Rs 500 until June 30, but it has been raised to Rs 1000 as of July 1 by the Central Board of Direct Taxes, or CBDT.