Taxes - Michigan Business Tax Forms

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Michigan Business Tax (MBT)

Special Notice:
Unbeknownst to the Michigan Department of Treasury, a software company recently released copies of an early draft version of Michigan Business Tax (MBT) forms. The drafts were provided to the software company for internal use only as it works to develop its software product.

The company is now notifying customers that the forms were not intended for public release and do not reflect either recently enacted legislation or legislation that is pending.

Department of Treasury representatives will not be answering any questions regarding these forms, as they are drafts and should not have been released publicly.

Forms & Instructions

• 4548, 2008 Michigan Business Tax Quarterly Return PDF icon
- 4548, 2008 Michigan Business Tax Quarterly Return Instructions
- Financial Institutions Special Instructions

• 4563, 2008 Insurance Company Quarterly Return for MBT and Retaliatory Tax PDF icon
- 4563 Instructions

• MBT Estimated and Annual Return Due Dates PDF icon

Quarterly estimated Michigan Business Tax forms will be mailed to taxpayers starting in early January 2008 for payment of their Michigan Business Tax estimates.

We anticipate the paper forms and instructions for the Michigan Business Tax 2008 Annual return will be available for distribution to the public in January 2009.

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