MI SB0383

Amends definitions in the Michigan Business Tax Act, including adding "professional employer organization" and clarifying "purchases from other firms" to include staffing company compensation and film rental payments.

Modifies motorsports entertainment complex tax credits: reduces credit cap from $2.1 million to $1.58 million for 2011-2012 tax years and extends eligibility through 2016 with additional $32 million capital expenditure requirements.

Grants Michigan Film Office discretionary authority to determine film production tax credit rates (up to 42% for core communities, 40% elsewhere, and 30% for qualified personnel) instead of fixed rates, effective retroactively to May 26, 2011.

Modifies film infrastructure investment and job training credits to allow Film Office discretion in setting credit rates (up to 25% and 50% respectively) and extends authorization through September 30, 2015.

Creates new refundable credit option allowing taxpayers with brownfield or historic preservation certificates issued after December 31, 2011 to claim 90% of certificate value as refundable credit instead of standard payment terms, effective January 1, 2012.