“Provider” means a nonstock corporation organized under ch. 181 that is a nonprofit corporation, as defined in s. 181.0103 (17), and that contracts under this section to provide client services on the basis of a unit rate per client service or a county department under s. 46.215, 46.22, 46.23, 51.42, or 51.437 that contracts under this section to provide client services on the basis of a unit rate per client service.

“Rate-based service” means a service or a group of services, as determined by the department, that is reimbursed through a prospectively set rate and that is distinguishable from other services or groups of services by the purpose for which funds are provided for that service or group of services and by the source of funding for that service or group of services.

1. If revenue under a contract for the provision of a rate-based service exceeds allowable costs incurred in the contract period, the contract shall allow the provider to retain from the surplus up to 5 percent of the revenue received under the contract unless a uniform rate is established by rule under subd. 5., in which case the contract shall allow the provider to retain the uniform percentage rate established by the rule. The retained surplus is the property of the provider. 4. If on December 31 of any year the provider’s accumulated surplus from all contract periods ending during that year for a rate-based service exceeds the allowable retention rate under subd. 1., the provider shall provide written notice of that excess to all purchasers of the rate-based service. Upon the written request of such a purchaser received no later than 6 months after the date of the notice, the provider shall refund the purchaser’s proportional share of that excess. If the department determines based on an audit or fiscal review that the amount of the excess identified by the provider was incorrect, the department may seek to recover funds after the 6-month period has expired. The department shall commence any audit or fiscal review under this subdivision within 6 years after the end of the contract period. 5. The department, in consultation with the department of health services and the department of corrections, shall promulgate rules to implement this subsection including all of the following: a. Requiring that contracts for rate-based services under this subsection allow a provider to retain from any surplus revenue up to 5 percent of the total revenue received under the contract, or a different percentage rate determined by the department. The percentage rate established under this subd. 5. a. shall apply uniformly to all rate-based service contracts under this subsection. b. Establishing a procedure for reviewing rate-based service contracts to determine whether a contract complies with the provisions of this subsection.

Notwithstanding par. (b), a county department under s. 46.215, 51.42, or 51.437 providing client services in a county having a population of 750,000 or more or a nonstock, nonprofit corporation providing client services in such a county may not retain a surplus generated by a rate-based service or accumulate funds from more than one contract period for a rate-based service from revenues that are used to meet the maintenance-of-effort requirement under the federal temporary assistance for needy families program under 42 USC 601 to 619.