Malpass v. Dept. of Treasury (Opinion - Leave Granted)
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The Supreme Court combined several taxpayers' appeals for the purpose of this opinion. In each, taxpayers owned two (or more) separate S-corporations, and attributed profits and losses from each businesses to their Michigan tax returns, arguing that the multiple businesses were unitary corporations. In each case, plaintiffs owned a Michigan company and a foreign company, but combined the profits and losses from both for credits on their Michigan returns. The Department of the Treasury disallowed the unitary classification. The Supreme Court held that under Michigan tax law, individual taxpayers may combine the profits and losses from unitary flow-through businesses and then apportion that income on the basis of those businesses’ combined apportionment factors.
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