Department of Revenue - Taxation
(Para ver la información en español, utilice el traductor automático en la parte superior derecha de la página.)
The Fort Collins Taxpayer Service Center will close at 3 p.m. September 18 and will reopen at 8 a.m. September 21. For alternative service options, please visit the Taxpayer Service Center webpage.
Online Filing Tools
Where's my refund? Check online
Check the status of your state income tax return
Revenue Online
File state taxes and manage your state tax account
Sales & Use Tax System (SUTS)
State-administered and home rule sales and use tax filing
Geographic Information System (GIS)
Look up sales and use tax rates by address or map location