The Merit-based Incentive Payment System is the CMS program that adjusts Medicare Part B payments up or down based on a clinician's or group's performance across four categories. Quality, Cost, Promoting Interoperability, and Improvement Activities.
MIPS has operated since 2017 under MACRA, the Medicare Access and CHIP Reauthorization Act of 2015. The 2026 performance year raised the penalty ceiling to negative 9 percent of Medicare Part B
reimbursement. That penalty applies two years later in payment year 2028. A practice collecting $800,000 annually in Medicare Part B faces up to $72,000 in penalties if they score below the performance threshold. The threshold itself also increased. The 2026 performance threshold is 75 points on a 100-point scale, up from 60 points in 2022. Score below 75 and the practice takes a penalty proportional to the distance below the threshold. Score above 75 and the practice earns a positive adjustment, though the positive adjustment amounts have compressed as more practices hit the threshold. The financial reality is that MIPS is no longer optional for any practice with significant Medicare revenue. Failing to report or scoring below threshold is a direct revenue loss.