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FAQ > Do U.S. citizens need an ITIN?

No, U.S. citizens do not need an ITIN. An Individual Taxpayer Identification Number (ITIN) is a tax processing number for individuals who are not eligible for a Social Security Number (SSN). All U.S. citizens are eligible to receive SSNs, so they do not need an ITIN and do not have to complete a W7 online form.

Is NIF Processing Required for U.S. Citizens?

In most cases, U.S. citizens file their taxes using a Social Security number issued by the Social Security Administration. Visit a local Social Security Administration office to apply for an SSN. Permanent residents and certain eligible nonimmigrant workers may also apply for an SSN.

Who needs an ITIN?

ITINs are issued to foreigners and others who must make federal tax returns, but are not eligible for an SSN. There are some common residency situations that require the individual to have an ITIN:

  • A nonresident alien who is not eligible to obtain an SSN and is required to file a U.S. tax return; typically, this is to claim a refund under the provision of a U.S. tax treaty.
  • A U.S. resident alien filing a tax return
  • To a dependent non-citizen or spouse of a U.S. citizen or resident alien
  • To a dependent non-citizen or spouse of a nonresident alien visa holder
  • Taxpayers who have an existing ITIN that is about to expire or has expired need to renew it before making a tax return. Both the original application and the renewal process can be completed with a fillable W7 form.
  • Fortunately, applying for or renewing an ITIN is an easy process. You can complete the W7 online using

    How to get an ITIN

    For taxpayers who are not eligible to obtain an SSN, obtaining an ITIN is easier than ever. You can complete a refillable W7 line using convenient services. Review the steps for completing an ITIN form. Then check that you have the required documents for the ITIN applications ready. When ready, complete the ITIN application to begin the process.


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