International Tax Guide: Resident Alien (RA) for U.S. Tax Purposes
Purpose
This guide is for all CU international employees, which includes faculty, researchers and student employees, who are classified for U.S. tax purposes as resident aliens for the current (or any given) tax year.
It outlines important reminders regarding tax information, step-by-step guidance for income tax return filing and links to vital resources.
Last updated: 7/2025
