Common
Taxpayer Identification Number
Identifier for a taxpaying entity in the United States
Taxpayer Identification Number
A Taxpayer Identification Number (TIN) is an identifying number used for tax purposes in the United States and in other countries under the Common Reporting Standard. In the United States it is also known as a Tax Identification Number (TIN) or Federal Taxpayer Identification Number (FTIN). A TIN may be assigned by the Social Security Administration (SSA) or by the Internal Revenue Service (IRS).
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