Interest on MSP Recovery Claims

70 – Interest on MSP Recovery Claims (Rev.11755, Issuance:12-21-2022, Effective: 01-23-2023, Implementation: 01-23-23) Section 1862(b)(2)(B)(i) of the Social Security Act (the Act) and 42 C.F.R. 411.24(m) provide express authority to assess interest on MSP debts. Interest is calculated on the MSP debts using the method applicable to Non-MSP Medicare overpayments and underpayments as stated in 42 C.F.R. 405.378. For Medicare overpayments and underpayments and MSP debts, interest is calculated in full 30-day periods. Interest instructions for Medicare overpayments and underpayments are found in Chapter 4, Pub. 100-06, Medicare Financial Management Manual.