Tax Identification Number (TIN) Definition, Types, and How To Get One.
What Is a Tax Identification Number (TIN)? A tax identification number (TIN) is a unique number assigned to individuals and businesses by the Internal Revenue Service (IRS) for tax purposes. TINs are used to identify taxpayers and track tax liabilities. There are several types of TINs, including Social Security numbers (SSNs), employer identification numbers (EINs), … Read more