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, ...

All State Offices will be closed January 1, 2026 for New Year's Day · 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 ...

Colorado Department of Revenue Denver, CO 80261-0004

CDOR Information Line: (303) 205-8411

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

Welcome to the Colorado Department of Revenue!

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

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.

All State Offices will be closed January 1, 2026 for New Year's Day · 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 ...

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 Individual Income Tax - Instructions and Forms

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.

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.

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 ...

This guide offers print, online, and local resources for taxes. ... Other Free and Low-Cost Tax Preparation Assistance from Colorado Non-Profit Organizations Toggle Dropdown · Tax Assistance - 211 Colorado This link opens in a new window ... Formularios de impuesto. ... **Las formas en español son no disponible a través del sitio web del Departamento de Ingresos de Colorado.

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>

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

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Colorado Department of Revenue · Colorado Department of Labor and Employment - Businesses and Employers Unemployment Insurance New Hire Registry · Small Business Administration - Colorado Colorado State Agencies Colorado Department of Personnel & Administration ·

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.