Taxpayer Service Representatives are available Monday through Friday, 8:00 a.m. to 4:30 p.m. MT (except on state holidays). Language translation service is available over the phone. Request this service once connected to a Taxpayer Service Representative · How Was Your Service

Contact your email provider for ... for your email account. Another option is to send the Department a secure message through your Revenue Online account. Visit the How to Send a Secure Message web page to learn more. ... Fuel Tax, International Fuel Tax Agreement (IFTA), Passenger Mile Tax, Exempt Use of Fuel Refund, ...

Colorado Department of Revenue Denver, CO 80261-0004

CDOR Information Line: (303) 205-8411

Welcome to the Colorado Department of Revenue!

Phone: (303) 205-8291Hours of Operation:Monday-Thursday: 8:00 a.m. to 4:30 p.m.Friday: 9:00 a.m. to 4:30 p.m.Mailing Address:Colorado Department of RevenueAttn: CollectionsP.O. Box 17087Denver, CO 80217-0087

Go to Colorado.gov/RevenueOnline. Click “Manage My Profile” on the top of the screen. Click the "Profile" link. Then click “Change Email” to update your notification email. The Department of Revenue does not share your email address, and you will only get email confirmations and notices that you have specifically requested.

Note: If agents are not available, please send an email or secure web message. 8:00 a.m. to 4:30 p.m. Mountain Time, Monday through Friday (except on state holidays) Colorado Department of Revenue Denver, CO 80261-0009

State ContactsERO Assistance: (303) 238-7378Taxpayer Assistance: (303) 238-7378Where's My Refund?: (303) 238-7378 State ResourcesColorado DOR Info for Tax Pros Where's My Refund? TABOR TaxSla...

Colorado Department of Revenue, Lakewood. 6,039 likes · 16 talking about this · 303 were here. The official Facebook page for the Colorado Department of Revenue. Serving Coloradans since 1941.

Colorado Individual Income Tax - Instructions and Forms

La información de contacto del Departamento de Ingresos de Colorado también está disponible si necesita asistencia** This page is not currently available due to visibility settings. ... Disclaimer: This website includes links to non-PPLD websites and services. PPLD cannot control the content or functionality of non-PPLD websites or services nor endorse the accessibility or accuracy of those sites.

Taxpayer Service Representatives are available (except on state holidays) Monday through Friday, 8:00 a.m. to 4:30 p.m. MT. Language translation service is available over the phone. Request this service once connected to a Taxpayer Service Representative · Taxpayer Helpline Call Scheduler:

Colorado Department of Revenue, Denver, Colorado 80261-0008.

The Colorado Department of Revenue, Division of Taxation, is hosting a virtual workgroup meeting to discuss the promulgation of new and amended tax rules regarding mandatory electronic filing and payment of certain taxes and fees.

Report Phishing and Online Scams The IRS doesn't initiate contact with taxpayers by email, text messages or social media channels to request personal or financial information. This includes requests for PIN numbers, passwords or similar access ...

Create a Website Account - Manage notification subscriptions, save form progress and more · November 17, 2025 - NOTICE OF BUDGET 2026

April 7, 2023 - That is it above "This address and zip code are exclusive to the Colorado Department of Revenue and a street address is not required." <a rel="nofollow" target="_blank" href="https://www.colorado.gov/pacific/tax/mail-form">https://www.colorado.gov/pacific/tax/mail-form</a>

Since its inception, the Lottery has contributed more than $2.8 billion to the state of Colorado. The Taxation Division promotes voluntary compliance with all Colorado state tax laws through information, education, assistance and customer service. Revenue Online, www.Colorado.gov/RevenueOnline, allows convenient and secure online access to file taxes, check refund status, set up payment plans and view tax records from previous years.

For information regarding state taxes and state sales tax licensing, contact the Colorado Department of Revenue, www.colorado.gov/revenue. For information regarding federal taxes and obtaining an employer identification number (EIN), contact the Internal Revenue Service, www.irs.gov.