Wisconsin Statutes Employment, Compensation and Mining (Ch. 101 to 109) § 103.457. Listing deductions from wages

An employer shall state clearly on the employee's pay check, pay envelope, or paper accompanying the wage payment the amount of and reason for each deduction from the wages due or earned by the employee, except such miscellaneous deductions as may have been authorized by request of the individual employee for reasons personal to the employee. A reasonable coding system may be used by the employer.