The Full Form of TAN NO. is‍ Tax Deduction and Collection AccountNumber.

The Tax Deduction and Collection Account Number (TAN) is required for people who are deducting or collecting tax at source. There is a penalty of Rs.10,000 for not quoting the TAN. Anyone paying a salary or commission is required to get a TAN.

TAN is Tax Deduction and Collection Account Number. It is a 10 digit alphanumeric number. This number has to be attained by people who are accountable for deducting tax at source or collecting tax at source. It is compulsory to quote your TAN in TDS or TCS return, payment, certificates, Annual Information Return and other documents.

Every person whose taxes are deducted at source or those who collect tax at source are required to obtain TAN. If a person fails to apply for TAN or do not quote the TAN in the specified documents, then the person will get a penalty of Rs.10,000.

An applicant cannot provide their PAN number in the field where TAN is required to be mentioned and both these number serve different purposes. TAN is an unique identification number that is given to those who are deducting or collecting taxes at source on behalf of the Income Tax Department, PAN is an unique number given to assesses that is individuals and companies.