New Colorado Resident
Who Must File?
Due Dates & Extensions
W-2 & 1099 Statements
Donate Your Refund to Charity
New Colorado Residents
Military Service Members
Request a Tax Return Copy
Frequently Asked Questions
Welcome to the Centennial State!
This page will help you find information on how to establish residency and file taxes in Colorado.
What is a Colorado Resident?
Full-Year Resident: A full-year resident is an individual who was a resident of Colorado on or before January 1 and continued so through or after December 31.
Part-Year Resident: A part-year resident is an individual who was a resident of Colorado for only part of the tax year. This includes anyone who moved into, or out of, Colorado at any time during the calendar year. For more information, visit the Part-Year Resident web page.
Non-Resident: A nonresident is an individual who did not reside within the boundaries of Colorado at any time during the tax year but the person may have temporarily lived and/or worked in Colorado or may have received income from a Colorado employer or partnership. Visit the Nonresident web page for more information.
How to Establish Residency in Colorado
- Own or operate a business in Colorado OR
- Are gainfully employed in Colorado OR
- Reside in Colorado for 90 consecutive days
For more information, visit the Department of Motor Vehicles website.