# Glacier Tax Prep (GTP)

**Source**: https://finance.uw.edu/sfs/scholarships-taxes/student-taxes/nra-students-federal-tax-information/glacier-tax-prep-gtp
**Parent**: https://finance.uw.edu/sfs/scholarships-taxes/student-taxes/nra-students-federal-tax-information

**Glacier Tax Prep (GTP)** is used by **all** international students to correctly file tax returns each year when they have taxable income.

- It is a web-based system and free to use.

This system does not transmit taxes to the IRS.

- International students must mail their tax form 1040NR or 1040NREZ and the W-2 or 1042S or 1099 form to the IRS. Details are provided at the end of the GTP session.

## Two Glacier Tax Systems

#### Glacier Tax Compliance

**Glacier Tax Compliance is used only by the UW payroll office.** Students need to fill out the information when they have a job on campus. 

- It is a secure, web-based application used by the payroll office to determine the correct taxation on wages for Foreign National employees.
- Failure to complete Glacier Tax Compliance information and provide documents to the ISC Payroll Office may result in inaccurate tax withholdings and/or loss of tax treaty benefits.
- You should update Glacier Tax Compliance any time vital information changes. Vital information includes your immigration status, your immigration status expiration date, renewing a tax treaty each year and updating your social security/ITIN number. A new Glacier packet needs to be sent to the ISC Payroll Office when these changes are made. You should always update Glacier Tax Compliance any time your information changes.

#### Glacier Tax Prep Program

**Glacier Tax Prep Program is for filing your tax return to the IRS.  This program is managed by the UW ISS office.**

If you work on campus, you will use this Glacier Tax Prep program to file your tax return each year.

**Check** the ISS webpage regarding [Glacier Tax Prep information](https://iss.washington.edu/taxes/ ).