Offices, Mailing Addresses, and Contact Information

Utah State Tax Commission

Office Hours

Monday through Friday, 8:00 a.m. to 5:00 p.m. Closed Saturdays, Sundays and legal holidays.
Many services are available online at

Telephone Assistance

  • 801-297-2200, option "0" (Salt Lake local calling area)
  • 800-662-4335, option "0" (toll free outside Salt Lake area)
  • TDD 801-297-2020

Email Assistance

Caution: Email is not secure. Do not send account numbers, ask about specific account information, or request account changes through email.

Automated Forms Ordering

  • Local calls: 801-297-6700
  • Toll free: 1-800-662-4335, ext. 6700

Note: The Tax Commission does not print the TC-40 Income Tax booklet. Get all forms and instructions at our Current Forms page.

ADA Accommodations

If you need an accommodation under the Americans with Disabilities Act, email, or call 801-297-3811 or Telecommunication Device for the Deaf (TDD) 801-297-2020. Please allow three working days for a response.

Internal Revenue Service (IRS)

  • Toll-free customer service: 1-800-829-1040
  • TTY/TDD customer service: 1-800-829-4059
  • Visit the IRS Where's My Refund? page, or call 1-800-829-1954
  • Prerecorded messages on tax topics: 1-800-829-4477
  • Forms by fax: 1-703-368-9694
  • Forms by phone: 1-800-TAX-FORM (1-800-829-3676)
  • A list of VITA and TCE sites that offer free tax preparation help: dial 211 or 1-800-829-1040
  • The IRS offers content in a variety of file formats to accommodate people who use assistive technology such as screen reading software, refreshable Braille displays, and voice recognition software. See IRS Accessible Forms & Publications.