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

IRS Wyoming Customer Service Number, Internal Revenue Service Wyoming 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 Wyoming and their cities.

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

IRS Wyoming Customer Service Contact Details

Below, we are furnished the contact information of IRS Wyoming customer service help teams. You can also get the details of IRS Wyoming 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) Wyoming can use the various contact modes we are sharing in this article below.

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

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City Street Address Days/Hours of Service Telephone* 
Casper 100 E. B St.
Casper, WY 82601
Monday – Friday – 8:30 a.m.-4:30 p.m.
(Closed for lunch 12:30 p.m.-1:30 p.m.)
(307) 261-6390
Cheyenne 5353 Yellowstone Rd.
Cheyenne, WY 82009
Monday-Friday – 8:30 a.m.-4:30 p.m.
(Closed for lunch 12:30 p.m.-1:30 p.m.)
(307) 633-0888
Sheridan 1949 Sugarland Dr.
Sheridan, WY 82801


**This office is closed until further notice**(307) 672-2788


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Internal Revenue Service Wyoming 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 Wyoming 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 – Friday, 7 a.m. – 7 p.m. your local time (Wyoming & Wyoming follow Pacific Time)

IRS Wyoming 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, Wyoming, District of Wyoming, DC, United States


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Useful Links of IRS Wyoming 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 Wyoming customer service representatives, kindly you can contact to the your local customer service support by following the above mentioned IRS Wyoming 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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1 Comment

  1. Hello, please I’d need check the status of my forms. One form 2553 for Fink Fashion LLC and second W-7 for Michael Fink. I sent this documents at 3/30(31)/2016 and still I did not recieved any response from IRS. I need to know, if everything is ok and they recieved domucents. That is all.

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