Scheduled Maintenance Notice: Michigan Treasury Online (MTO)

Michigan Department of Treasury sent this bulletin at 12/09/2025 08:45 AM EST

Scheduled Outage

Michigan Treasury Online

Maintenance and Updates

Michigan Treasury Online (MTO) will undergo year-end changes this weekend. As a result, MTO will be unavailable from 5 p.m. ET on Friday, December 12 through 8 p.m. ET on Sunday, December 14. Business tax stakeholders may be impacted by this outage, particularly monthly sales and use tax filers initiating a payment on December 12 to qualify for the early payment discount. To avoid any disruption, please complete all MTO activities—including scheduling same-day payments—by 4:45 p.m. ET on Friday, December 12.

This service is provided to you at no charge by the Michigan Department of Treasury.

Lansing, Michigan 48922 | 517-335-7508 | Contact Us

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