Individual Taxpayer Identification Number (ITIN)

About

An Individual Taxpayer Identification Number (ITIN) is a tax processing number the Internal Revenue Service (IRS) issues to an individual who needs to report income but who is ineligible to obtain a Social Security number (SSN) from the Social Security Administration. Detailed information on ITIN can be found on the IRS website.

Students or dependents who are not yet eligible for SSNs can apply for an Individual Tax Identification Number (ITIN). This is a unique identification number valid for 5 years or until you receive an SSN, whichever is first. Typically, ITINs take approximately 6-8 weeks to process.

F or J students who are not eligible for an SSN must apply for an ITIN if they receive: A grant, fellowship, scholarship, or other types of non-wage income. 

List of Required Documents
  • IRS W-7 form
  • IRS W-8BEN form (only if claiming tax treaty benefits)
  • Form I-94   
  • Visa
  • Passport 
  • Form I-20 or Form DS-2019
  • Grant, Fellowship, or Scholarship Award Letter indicating the amount and details
  • DSO/ARO Certification Letter from ISSP
  • If you applied for SSN and were denied – The denial letter from the Social Security Administration states that you are not eligible to receive a Social Security Number (SSN)

Eligibility


Eligibility

  • Must be physically in the U.S. and complete the required visa check-in processing
  • F-1 or J-1 students who are receiving a Grant, Fellowship, or Scholarship Award, but do not yet have bona fide employment
  • F-2 or J-2 dependents who are being claimed on a tax return, or file a joint U.S. tax return with a U.S. citizen/permanent resident spouse

When to Apply

You can apply for an ITIN when the following criteria are met: (1) You have completed the visa check-in process in iGlobal, (2) ISSP has registered/validated your immigration record, and (3) You have all the necessary documentation. Due to the average IRS processing time (6-8 weeks), we suggest that you have additional funding available to cover your first quarter while you await your ITIN and payments.


How to Apply

Submitting an ITIN application to the IRS can occur in various ways, listed below. ISSP does not recommend one process over the other. Instead, it is the student’s responsibility to select which option they would like to follow.

Please note: ISSP advisors are not tax experts and are legally prohibited from giving you tax advice. It is your responsibility to determine how to complete IRS Forms.

To apply for an ITIN, students are required to submit the following items to the IRS:  

  • ITIN Certification Letter signed by DSO/ARO
    • Complete a request for ITIN Certification Letter via iGlobal.
  • Photocopies of each of the following:
    • Form I-94 printed from the U.S. Customs and Border Protection website
    • Visa (if applicable)
    • Passport (biographical information page)
    • Grant, Fellowship, or Scholarship Award Letter indicating the amount and details 
    • Form I-20 or Form DS-2019
  • Note: F-2 or J-2 dependents are required to bring a copy of the F-1 or J-1 principal’s Form I-94 Scholarship

Application Options

Option 1 – Apply by Mail
  1. Complete an ITIN Certification Letter request via iGlobal.
  2. Complete IRS W-7 form
  3. Complete IRS W-8BEN form (only if claiming tax treaty benefits).
  4. Mail your Application to the IRS.
    1. Include copies of your immigration documents as listed above, attaching the DSO/ARO Certification Letter from ISSP, and the completed IRS forms.
  5. After processing, the IRS will issue your ITIN by mail. 

Note: If you applied for an SSN and your application was denied, you must submit the denial letter that you received from the SSA.

Mail your ITIN Application to the following address:

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

Option 2 – Apply by mail AND want assistance from a tax professional to ensure correctness
  1. Complete an ITIN Certification Letter request via iGlobal.
  2. Meet with a Tax Professional.
    1. Complete IRS W-7 form.
    2. Complete IRS W-8BEN form (only if claiming tax treaty benefits).
  3. Mail your Application to the IRS.
    1. Include copies of your immigration documents as listed above, attaching the DSO/ARO ITIN Certification Letter, and the completed IRS forms.
  4. After processing, the IRS will issue your ITIN by mail.

Note: If you applied for an SSN and your application was denied, you must submit the denial letter that you received from the SSA.

This option includes using the services of an IRS-authorized Certifying Acceptance Agent. This will prevent you from making mistakes while filling out the W-7 and W-8BEN Forms, and will guarantee that a Tax Professional has reviewed your documents before submission to the IRS.

The cost of tax services varies and depends on the forms reviewed by the tax professionals and the services provided. The estimated cost is $100-$150. 

These are examples of two local places that offer tax services:

Santa Cruz Tax Services

  • 710 River Street #8, Santa Cruz, CA 95060 – Website Link
  • Phone: (831) 621-2484
  • Mon – Fri: 9:00 a.m. – 5:00 p.m.

H & R Block Inc.

  • 724 Water Street, Santa Cruz, CA 95060 – Website Link
  • Phone: (831) 423-7111
  • Mon – Fri: By Appointment

After meeting with a tax professional, mail your ITIN Application to the following address: 

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

Option 3 – Apply in person
  1. Complete an ITIN Certification Letter request via iGlobal.
  2. Complete IRS W-7 form.
  3. Complete IRS W-8BEN form (only if claiming tax treaty benefits).
  4. Collect all required documents and attend an in-person appointment with the IRS.
    1. Bring your original immigration documents as listed above with you, the DSO/ARO Certification Letter from ISSP, and the completed IRS forms.
  5. After processing, the IRS will issue your ITIN by mail.

Note: If you applied for an SSN and your application was denied, you must submit the denial letter that you received from the SSA. Make an appointment at a designated IRS Taxpayer Assistance Center. 

  • Call for Appointment: (844) 545-5640

For an Assistance Center location, use the Taxpayer Assistance Center Office Locator

Closest locations to UCSC: 

San Jose

  • 55 S. Market St. Suite 100, CA 95113
  • Phone: (408) 283-1569
  • Mon – Fri: 8:30 a.m. – 4:30 p.m. 

Salinas

  • 928 East Blanco Rd., Suite 121, CA 93901
  • Phone: (831) 753-6895
  • Mon – Fri: 8:30 a.m. – 4:30 p.m.


Additional ITIN Resources

ITIN Application Presentation

W-7 PDF Instructions

W-8BEN PDF Instructions

In this section

Last modified: Oct 06, 2025