If you have a question regarding tax information, please feel free to contact MDES at:     Mississippi Department of Employment Security Office of the Governor 1235 Echelon Parkway P.O. Box 1699 Jackson, MS 39215-1699 General Tax Questions: 866-806-0272 Access MS Questions: 800-224-1388   Be sure to address your question to the UI Tax Department   Email your question to: cands@mdes.ms.gov   For assistance, contact any Mississippi WIN Job Center  or call 1-888-844-3577   Privacy & Security Disclaimer | Accessibility Policy | Internal Security The Mississippi Department of Employment Security is an equal opportunity employer. Auxiliary aids and services are available upon request to individuals with disabilities.