Medicare
Medicare Prescription Payment Plan (M3P)
The M3P program, launched in 2025, smooths Part D drug costs throughout the year so beneficiaries are not hit with large out-of-pocket payments early in the year.
Last reviewed: May 2026 · Editorial methodology
Definition
The Medicare Prescription Payment Plan (M3P), created by the Inflation Reduction Act and launched January 1, 2025, allows Medicare Part D and MAPD plan enrollees to opt in to a monthly payment arrangement for their out-of-pocket prescription drug costs. Rather than paying the full cost-sharing amount at the pharmacy counter — which can be very high at the start of the year before the deductible is met — beneficiaries who elect M3P pay a capped monthly installment calculated by dividing their expected annual out-of-pocket costs by the remaining months in the year. The plan pays the pharmacy the full amount due and then bills the enrollee monthly. M3P is particularly beneficial for beneficiaries who take expensive specialty medications early in the year, as it prevents large lump-sum payments while the $2,100 out-of-pocket maximum accrues. Enrollment is optional and can be elected at any time during the year. The program does not reduce total out-of-pocket costs but changes the timing of when those costs are paid, improving cash flow management for beneficiaries on fixed incomes.
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Cover Forge USA Editorial Team
Editorial Lead
This article was researched and written by the Cover Forge USA editorial team against federal sources (NAIC, CMS, FEMA, DOL, SSA, state DOIs) and standard policy forms. Bylines organize content by topic — they do not assert individual licensure. See our editorial-policy for details.
Reviewed 2026-06-14
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