What is an ITIN?

Modified on Wed, 24 Sep at 3:51 PM

An ITIN (Individual Taxpayer Identification Number) is a 9-digit tax processing number issued by the IRS to individuals who are not eligible to obtain a Social Security Number (SSN) from the Social Security Administration. ITINs are used strictly for federal tax reporting purposes.

Who Needs an ITIN?

ITINs are designed for individuals who must file or report taxes but are not eligible for an SSN. Common examples include:

  • Nonresident aliens who are required to file a U.S. tax return.
  • Resident aliens who are required to file a tax return but are not eligible for an SSN.
  • Dependents or spouses of U.S. citizens or resident aliens.
  • Dependents or spouses of nonresident alien visa holders.

What is an ITIN Used For?

An ITIN allows individuals to comply with U.S. tax laws. While it helps with filing taxes and claiming certain benefits, an ITIN does not:

  • Authorize a person to work in the United States.
  • Provide eligibility for Social Security benefits.
  • Change immigration status.

How to Apply for an ITIN

To apply for an ITIN, you must complete Form W-7, Application for IRS Individual Taxpayer Identification Number , and submit it with the required documentation. The IRS requires proof of both foreign status and identity, such as a passport or national ID card.

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