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Streamlined Sales and Use Tax Project
File your Streamlined Sales Tax Electronic Return in MTO
Certified Service Providers (CSPs), sellers who utilize Certified Automated Systems (CASs), and sellers who utilize Treasury’s on line fillable form may submit SST SERs to Treasury
About the Streamlined Sales and Use Tax Project
Michigan's Petition for Membership in the Streamlined Sales and Use Tax Agreement and Michigan's Certificate of Compliance were posted to the Michigan Department of Treasury website as of January 31, 2005, and were filed with the Co-Chairs of the Streamlined Sales Tax Implementing States on January 31, 2005. On July 29, 2022, the State Treasurer submitted the following documents to the executive director of the Streamlined Sales Tax Governing Board: Michigan's re-certification letter, a revised Taxability Matrix, and the revised Certificate of Compliance. The most current version of Michigan’s Taxability Matrix can be found at http://sst.streamlinedsalestax.org/otm/. Click on the tab for Michigan to view, print or download the Taxability Matrix. The most current version of Michigan’s Certificate of Compliance can be found at http://sst.streamlinedsalestax.org/coc/. Click on the tab for Michigan to view, print or download the Certificate of Compliance. If you are interested in becoming a new Certified Service Provider please email Treasury at email@example.com.