Apply for an ITIN: Individual Taxpayer Identification Number

How to apply for an ITIN; how to retrieve an ITIN

Article, Solution:

You can submit your ITIN application at any time when you have a filing or reporting requirement. Complete Form W-7 and submit it as outlined below. If the tax return you attach to Form W-7 is filed after the return's due date, you may owe late filing interest and/or penalties if you owe taxes. If you do not owe taxes, this will not apply.

ITIN Guide and Overview

Complete, Sign Form W-7 online.

Option 1: Once you complete and sign the form, mail the following documents. Note: Prepare your return on, then print it and only mail it ONCE to the address below when you apply Form W-7 to get an ITIN.

  • Form W-7
  • Tax Return
  • Proof of Identity (original documents or certified copies of documents from the issuing agency) - see options below
  • Foreign Status Documents.

Supporting documents include:

  • Passport
  • United States Citizenship and Immigration Services (USCIS) photo identification
  • A Via as issued by the U.S. Department of State
  • U.S. or non-U.S. driver's license of military identification card
  • A national or U.S. state identification card
  • A civil birth certificate
  • Voter's registration card
  • Medical or school records (valid for certain dependents).

Once you have the ITIN, you can prepare and e-file your return via Otherwise, you can also prepare (not e-file) your return with your application for an ITIN. See how to prepare a return with a temporary SSN so you can print and mail it with your W-7.

Mailing Address:

Internal Revenue Service
Austin Service Center
ITIN Operation
P.O. Box 149342
Austin, TX 78714-9342

Or private delivery:

Internal Revenue Service
ITIN Operation
Mail Stop 6090-AUSC
3651 S IH 35
Austin, TX 78741-0000

Should you need your original proof of identity documents within 60 days, originals will be returned after 60 days, no return envelope required, but as an option, you can include a prepaid Express Mail or courier envelope. When applying for an ITIN, consider doing so in person at an IRS Taxpayer Assistance Center or CAA. If for any reason your original documents are not returned, contact the IRS. You will receive a letter from the IRS assigning your tax identification number usually within seven weeks if you qualify for an ITIN and your application is complete. After application processing, the IRS will send you your ITIN through the mail to the address on Form W-7.

Option 2: Submit your ITIN application in-person using the services of an IRS-authorized Certifying Acceptance Agent - view the link to find internal and US locations. You will not have to mail in your documents as listed above with this option.

Option 3: Make an appointment and submit your ITIN application at a designated IRS Taxpayer Assistance Center. This will also prevent you from having to mail your proof of identity and foreign status document.

See reasons on why your ITIN might be rejected.

Contact the IRS if you have questions about the application process.