Pan or Permanent Account Number and Tan or Tax Deduction and Collection Account Number are both tax-related identification numbers meant to be gotten by all taxpayers in India. Both are issued by the Income Tax Department in India, but the assignment of these two unique codes is supervised by different boards. While Pan is usually assigned by the Central Board for Direct Taxes, Tan is usually assigned by the Income Tax Department.
Tin, on the other hand, is the short form of Tax Identification Number. It is a special code issued to all traders, dealers, shopkeepers, manufacturers in India so that they conveniently pay their VAT. The assignment of Tin is under the supervision of the Internal Revenue Service in India. Pan has a special code that contains five alphabets followed by four numbers and a letter serving as the check digit.
Tan has a special code that contains four alphabets followed by five numbers with a letter serving as the check digit. Tin also has a special code that contains 11-digit numbers with the first two digits representing the state code for a particular state.