MI SB1222

Amends the Michigan Business Tax Act to expand the definition of "purchases from other firms" to include additional categories of business expenses deductible from the tax base.

Adds payments to subcontractors for construction projects (for entities in major groups 15, 16, or 17) and payments to subcontractors for motor freight transportation (for entities classified under North American Industrial Classification System number 484) as deductible purchases.

Includes film rental and royalty payments paid by theater owners to film distributors and producers as deductible purchases beginning in the 2008 tax year.

Adds payments to independent contractors licensed under articles 25 or 26 of the occupational code as deductible purchases for certain licensed taxpayers.

Includes definitions for key terms including "partner," "partnership," "person," "professional employer organization," "staffing company," and "revenue mile" for purposes of the Michigan Business Tax.