CMS medicare plan rates 2027 moved forward in an advance notice that proposes capping Medicare Part D out-of-pocket prescription costs at $2,400 for 2027, up from $2,100 in 2026.
The proposal appears in CMS’s CY 2027 Advance Notice and Rate Announcement documents released during early 2026; KHA noted the agency “proposed to cap” out-of-pocket Part D costs at $2,400 in 2027.
CMS’s Advance Notice also projects a near-flat change to Medicare Advantage payments for 2027: the agency estimated a net 0.09% expected average payment change, a figure industry summaries have cited as effectively flat year-over-year.
The Advance Notice and related materials outline how CMS sets Medicare plan rates: the agency combines a national base beneficiary premium and program growth assumptions to calculate Part D and MA payments, then publishes proposed rates in the CY 2027 package released in early 2026.

For beneficiaries, the Part D out-of-pocket cap is the most concrete change flagged in the proposal. An AOL summary of 2027 Part D changes reported the agency’s national base beneficiary premium calculation and said many beneficiaries would see modest premium increases.
The CMS materials that industry trackers and legal analysts reviewed also describe changes to risk-adjustment and plan payment methodology that could influence insurer pricing and benefits design for Medicare Advantage plans in 2027.

What happens next: the Advance Notice is a proposal that informed stakeholders and plan sponsors use to comment and to set 2027 bids; CMS typically publishes final payment rates after a comment period and a subsequent Rate Announcement, as noted in the agency timeline documents cited in the CY 2027 package.
Consumers tracking CMS medicare plan rates 2027 should expect CMS to finalize rates after the regulatory process; plan premiums, deductibles and benefit designs will reflect those final numbers when insurers file their 2027 plan bids.
For related coverage on costs retirees may face next year, see Medicare rates 2027: CMS confirms $700 Part D deductible, premiums rising and Social Security Administration 2027 COLA projected at 3.6%.
Sources
- Kaiser Health News — noted CMS “proposed” a $2,400 cap on Part D out-of-pocket prescription costs for 2027.
- Health Management Associates — summarized the CY 2027 Advance Notice and its timing and payment-change figures.
- AOL — reported on 2027 Part D changes including the national base beneficiary premium context for beneficiaries.
- downloads.regulations.gov — the CY 2027 Advance Notice package (agency attachment) showing the proposed payment and policy tables.











