Minn. Stat. § 181.03
Subd. 1. Prohibited practices.
An employer may not, directly or indirectly and with intent to defraud:
Subd. 2. Commissions.
Except as otherwise provided in section 181.13, an employer or a person, firm, corporation, or association may not alter the method of payment, timing of payment, or procedures for payment of commissions earned through the last day of employment after the employee has resigned or been terminated if the result is to delay or reduce the amount of payment.
Subd. 3. Civil action.
An employer who violates this section is liable in a civil action brought by the employee for twice the amount in dispute.