2028 Medicare Premiums — CMS Planning Estimates

Published CMS estimates

The report’s 2028 Part D amounts are projections even though certain 2027 Part D values have already been finalized. Do not interpret a projected decrease between report years as a promised reduction in an individual plan’s costs. Plan premiums, formularies and cost-sharing arrangements vary.

Worked example: a basic Part B budget

At the estimated $224.50 monthly standard premium, 12 months would cost $2,694. Adding the estimated $313 deductible gives $3,007 before coinsurance, supplemental coverage, drug coverage or other costs. A couple paying the standard premium for both spouses would budget $5,388 in annual Part B premiums alone.

This is a premium-and-deductible example, not a maximum spending amount. Original Medicare does not provide a general annual Part A/B out-of-pocket cap. The Part A deductible applies per benefit period rather than simply once per year, and separate coverage can change what the beneficiary pays.

2028 IRMAA usually looks at 2026 income

Income-related premium adjustments generally use the tax return from two years earlier, so 2028 premiums commonly look back to 2026 MAGI. Tax-exempt interest is part of the Medicare MAGI calculation. A large conversion or asset sale in 2026 may therefore affect 2028 Medicare costs.

The final 2028 income brackets and charges are not available here as confirmed figures. We do not relabel a prior-year bracket table as 2028. Some qualifying life-changing events can support a request for a new determination; routine investment gains are not automatically such an event. Check SSA’s current process and documentation requirements.

The base Part D premium is not your plan quote

The $43.81 base beneficiary premium is a program reference used in calculations such as late-enrollment penalties. It does not mean that every drug plan will charge that amount. Compare the actual plan premium, covered drugs, pharmacy network and cost-sharing when 2028 offerings become available.

Keep the out-of-pocket threshold distinct from premiums and from spending on drugs that do not qualify under the applicable benefit rules. Revisit this budget after CMS finalizes the annual parameters and again when individual plan documents are available.

Method, assumptions and release timing

CMS 2026 Trustees Report intermediate estimates, Table V.E1 (Part A) and Table V.E2 (Parts B/D). The Part D base beneficiary premium is not a quoted plan premium. No editorial 3% factor is applied to these agency estimates.

2028 Part D parameters are normally released during 2027; final Part A/B amounts and IRMAA information usually arrive in autumn 2027.