IRS Colorado Customer Service Number, Internal Revenue Service Colorado Offices, Center Address, Hours, Phone Number

IRS Colorado Customer Service Number, Internal Revenue Service Colorado branch offices, addresses, customer service centers, locations, taxpayer centers, hours of operations, toll free helpline number, customer support number and email id with information like IRS application, inquiry, filing, payments, refunds, credits and deductions, help and resources, appointment information in Colorado and their cities.

Taxpayers who are looking IRS Colorado customer service phone number or toll free phone number of IRS Colorado, and Internal Revenue Service Colorado contact number, IRS Taxpayer Assistance Centers (TACs) in Colorado, etc. So, as this page we are sharing all contact information of IRS Colorado customer service department including Internal Revenue Service Colorado customer service office address, telephone number, fax number and official web page link.

IRS Colorado Customer Service Contact Details

Below, we are furnished the contact information of IRS Colorado customer service help teams. You can also get the details of IRS Colorado office address, important contact numbers and enquiry numbers. The customers who want to share their complaints, suggestions, feedback and reviews with the IRS (Internal Revenue Service) Colorado can use the various contact modes we are sharing in this article below.

IRS Branch Offices and Taxpayer Assistance Centers (TACs) in Colorado:

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IRS Colorado Springs, Colorado Office Location:
  • Address: 2864 S. Circle Dr., Colorado Springs, CO 80906
  • Telephone Number: +1 (719) 579-5227
  • Days/Hours of Operations: Monday-Friday – 8:30 a.m.-4:30 p.m.
IRS Denver, Colorado Office Location:
  • Address: 1999 Broadway, Denver, CO 80202
  • Telephone Number: +1 (303) 446-1675
  • Days/Hours of Operations: Monday-Friday – 8:30 a.m.-4:30 p.m.
IRS Ft. Collins, Colorado Office Location:
  • Address: 301 S. Howes St., Ft. Collins, CO 80521
  • Telephone Number: +1 (970) 221-0688
  • Days/Hours of Operations: Monday-Friday – 9:00 a.m.-4:30 p.m.
IRS Grand Junction, Colorado Office Location:
  • Address: 400 Rood Ave. Grand Junction, CO 81505
  • Telephone Number: +1(970) 241-6265
  • Days/Hours of Operations: Monday-Friday – 8:30 a.m.-4:30 p.m.


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Internal Revenue Service Colorado e-help Desk Toll-Free Number:
  • 1-866-255-0654 (Within the United States)
  • 1-512-416-7750 (outside the United States)
  • e-help desk Hours of Operations: Monday thru Friday 6:30 AM – 6:00 PM Central Time
IRS Colorado Customer Service Phone Number:
  • 1-800-829-1040 toll free for Individuals
  • 1-800-829-4933 toll free for Businesses
  • 1-877-829-5500 toll free for Exempt Organizations
  • 1-877-829-5500 toll free for Retirement Plan Administrators
  • 1-877-829-5500 toll free for Government Entities
  • 1-800-829-4059 TDD Toll-Free for people with hearing impairments
  • Hours of Operation: Monday โ€“ Friday, 7 a.m. โ€“ 7 p.m. your local time (Colorado & Hawaii follow Pacific Time)

IRS Colorado Customer Service Email ID: Click here


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IRS Corporate Headquarters Office Address:
  • Location: Internal Revenue Service Headquarters Building, 1111 Constitution Avenue, Northwest, Washington, District of Columbia, DC, United States


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Useful Links of IRS Colorado Customer Service Support:

Click here for general help and support online

Click here to find local IRS Branch Offices

Click here to find Taxpayer Assistance Centers

Click here to get online Help and Resources

Click here to Contact your local Taxpayer Advocate

Click here to File Paper Tax Returns


If you are unable to connect with the IRS Colorado customer service representatives, kindly you can contact to the your local customer service support by following the above mentioned IRS Colorado customer service, local office address, telephone numbers, fax numbers, email ids and more. You can also contact to the offices located in your city or can visit the customer service office directly, send an email, and write a letter. For further details we recommend you to visit the official website of IRS.

IRS Official Website:


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