Contact Us

Before you call or email, we encourage you to try one of these self service options:

Revenue Online Help          Where's My Refund           How-To Videos
 

 

Call the Taxpayer Helpline

(303) 238-7378

Taxpayer Service Representatives are available (except on state holidays)

Monday through Friday, 8:00 a.m. to 4:30 p.m.

 

Other Contact Options 

Visit for more information on how to contact us by mail        Visit for more information on how to contact us by email        Visit for More Contact Phone Numbers

Link to Speaking Request Form        Alternative Service of Process of Legal Documents        Request an ADA accomodation