An action for contribution based on tort, if the right of contribution does not arise out of a prior judgment allocating the comparative negligence between the parties, shall be commenced within one year after the cause of action accrues or be barred.
Wis. Stat. § 893.92
A claim for contribution accrues when payment is made. Milwaukee Mutual Insurance Co. v. Priewe, 118 Wis. 2d 318, 348 N.W.2d 585 (Ct. App. 1984).