Tax Deduction Account Number or Tax Collection Account Number is a 10 -digit alpha-numeric number issued by the Income-tax Department. TAN is to be obtained by all persons who are responsible for deducting tax at source (TDS) or who are required to collect tax at source (TCS).
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Permanent Account Number (PAN) is a code that acts as an identification for Indian nationals, especially those who pay Income Tax. It is a unique, 10-character alpha-numeric identifier, issued to all judicial entities identifiable under the Indian Income Tax Act, 1961.