Taxpayer Assistance Information
The Department of Revenue Taxpayer Assistance Offices located in St. Louis, Kansas City, Springfield, St. Joseph, Joplin, Cape Girardeau, and Jefferson City are permanently closed. Please consider searching our website for answers to your questions or you may call (573) 751-3505. Correspondence and packages may be mailed to the address provided on any notice received or return filed. If no return address was provided, mail to Missouri Department of Revenue, Harry S Truman State Office Building, Taxation Division, 301 West High St. PO Box 3366, Jefferson City, MO 65101.
The drop off location for mail in the Truman Building is Room 330, Truman Building from 8:00 a.m. to 5:00 p.m. The mailing address for Express/Overnight packages is 301 West High St, Room 102, Jefferson City, MO 65101. Do not enclose cash with mail delivered to the Missouri Department of Revenue.
For more contact information including e-mail addresses, visit http://dor.mo.gov/contact/