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What Is Itin?

An ITIN, or individual Taxpayer Identification Number, is a tax processing number that became available on July 1, 1996, for certain nonresident and resident aliens, their spouse, and dependents. The ITIN is only available to individuals who cannot get a Social Security Number (SSN). It is a 9­digit number, beginning with the number "9", formatted like an SSN (NNN­NN­ NNN). The temporary IRS Number previously assigned is no longer valid.

Other Taxpayer Identification Number FAQs

  • Q: How Do I Know If I Need An Itin?
    A: If you must file a U.S. tax return or you are listed on a tax return as a spouse or a dependent and you do not have, and cannot obtain, a valid Social Security Number, … More
  • Q: How Do I Apply For An Itin?
    A: To obtain an ITIN, you must complete IRS Form W­7, Application for IRS Individual Taxpayer Identification Number. You may complete and sign a Form W­7 for a … More
  • Q: Are Itins Valid For Work Purposes?
    A: No. ITINS are only used for federal income tax purposes. Alien individuals who are legally admitted to the U.S. for permanent residence or other categories that … More
  • Q: What Are Acceptance Agents?
    A: Acceptance Agents are entities (colleges, financial institutions, accounting firms, etc.) who are authorized by the IRS to assist applicants in obtaining ITINs. They … More
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