Starting a business set up requires much paperwork and digital documentation. You may already have a business enterprise and facing issues due to lack of documentation. Or you may be on your way to starting your business enterprise. Tax Identification Number (TIN) An entrepreneur or self-employed businessman or woman would require TIN while making goods purchases and sales. To apply for TIN, the proprietor would need to furnish the following documents: Identity proof of proprietor Address proof of proprietor Address proof of business PAN card of proprietor Tax Deduction and Collection Account Number (TAN) Business setups need to deduct several taxes at source. TAN is a ten-digit alphanumeric number which has to be quoted by the proprietor on TDS returns and payments and any communication on TDS with the income tax department. Not quoting TAN while filing TDS return with income tax department can be fined up to Rs 10,000. The proprietor also needs to furnish TAN at the bank and link it ...