Michigan Compiled Laws — Tax Chapters 205-208, 211
MCL 207.1134 — Refusal to allow inspection or audit
(1) A person who refuses to permit any inspection or audit authorized by this act is subject to a civil penalty of $5,000.00, in addition to any other penalty imposed by this act.
(2) A person who, for the purpose of evading tax, refuses to allow an inspection authorized by this act is guilty of a felony, in addition to any other penalty imposed by this act.
Source: official text