A Tax Identification Number (TIN) is a nine-digit number used as a tracking number by the Internal Revenue Service (IRS). It is required information on all tax returns filed with the IRS. All U.S. tax identification numbers (TIN) or tax I.D. numbers are issued directly by the IRS except Social Security numbers (SSNs), which are issued by the Social Security Administration (SSA)
• As an individual: Your TIN is the same as your social security number.
• As an entity: Your TIN is most likely the business entity’s Employer Identification Number (EIN). However, an entity with the legal structure of an S-corp corporations, for example, may have the TIN may be that of the owner. The specifics of your TIN as an entity should be reviewed with a legal advisor.
• As an individual without a SSN: Your TIN is issued as an ITIN, a 9 digit number you receive from the IRS.
• if you do not have a social security number; In this case, you will have to request an ITIN, which stands for Individual Taxpayer Identification Number.It is only issued to those non-resident and resident aliens, their spouses, and dependents who do not have and can’t be issued an SSN. This number can be requested regardless of immigration status.
