Montana Title 19. Public Retirement Systems § 19-20-1215. Statute of limitations

(1) If overpaid benefits or unpaid contributions resulted solely from an error made by the retirement system, the retirement system may recover amounts owed for overpayments or unpaid contributions only for benefits or other amounts actually paid by the retirement system or for contributions that were actually due in the timeframe beginning 24 months prior to the date on which the retirement system issues an initial notice and ending when all amounts owed for overpayments or unpaid contributions are fully paid.

(2) If overpaid benefits or unpaid contributions resulted solely or partially from an error made by an employer, a member, or a benefit recipient, the retirement system may recover all amounts owed for the overpayment or unpaid contributions beginning on the date that the first erroneous payment was made or that contributions were first due. The retirement system may not recover amounts owed under this subsection unless the retirement system issues an initial notice no later than 24 months after the date on which the last payment of a retirement benefit or other amount was made by the retirement system on behalf of the member.

(3) No other statute of limitations or legal or equitable defense to the application of a statute of limitations may be applied to shorten the timeframes in which or for which the retirement system may seek recovery of amounts owed for overpayments or unpaid contributions.