2027 Medicare costs (projected): CMS's own Trustees Report estimate
CMS will not publish the real 2027 Medicare Parts A & B fact sheet until around mid-November 2026. Until then, the best available figures come from CMS's own 2026 Medicare Trustees Report — a 10-year "intermediate estimates" projection of Part A, B and D costs. Every number below is clearly labelled 2027 (projected) against the confirmed 2026 figure.
Not yet official. The confirmed 2026 Medicare costs are on the 2026 Medicare costs reference. CMS's real 2027 fact sheet typically publishes in mid-November 2026 — the Social Security wage base for 2027 is projected on the same schedule; see the 2027 Social Security wage base (projected).
2027 Medicare Part A costs (projected)
Part A covers inpatient hospital care, skilled nursing facility stays, hospice, and some home health care. Most people never pay a Part A premium at all — that does not change under this projection.
| Part A cost | 2026 (confirmed) | 2027 (projected) | Change |
|---|---|---|---|
| Premium — 30 to 39 quarters of coverage | $311 | $330 | +$19 |
| Premium — fewer than 30 quarters of coverage | $565 | $600 | +$35 |
| Inpatient hospital deductible (per benefit period) | $1,736 | $1,788 | +$52 |
| Daily coinsurance, hospital days 61-90 | $434 | $447 | +$13 |
| Daily coinsurance, lifetime reserve days | $868 | $894 | +$26 |
| Skilled nursing facility daily coinsurance, days 21-100 | $217.00 | $223.50 | +$7 |
Source: 2026 Medicare Trustees Report, Table V.E1 (HI Cost-Sharing and Premium Amounts, Intermediate estimates).
2027 Medicare Part B costs (projected)
Part B covers outpatient care — doctor visits, durable medical equipment, preventive care, and outpatient procedures. Almost everyone pays a Part B premium, so this is the figure with the most attention every year.
| Part B cost | 2026 (confirmed) | 2027 (projected) |
|---|---|---|
| Standard monthly premium | $202.90 | $209.50 |
| Annual deductible | $283 | $292 |
| Coinsurance after the deductible | 20% | 20% |
Source: 2026 Medicare Trustees Report, Table V.E2 (SMI Cost-Sharing and Premium Amounts, Intermediate estimates).
The report states this projection directly: "In 2026 the monthly Part B premium rate is $202.90... The estimated monthly premium for 2027 is $209.50." The Trustees do not publish a projected immunosuppressive-drug-only premium, so that figure is intentionally left off this page rather than estimated.
2027 Medicare Part D standard benefit (projected)
Part D covers prescription drugs through private plans. CMS sets a "standard benefit" design every plan must at least match in value; actual plan premiums vary widely and are not projected here.
| Part D standard benefit | 2026 (confirmed) | 2027 (projected) |
|---|---|---|
| Standard benefit annual deductible | $615 | $700 |
| Annual out-of-pocket / catastrophic threshold | $2,100 | $2,400 |
| Initial coverage phase coinsurance | 25% | 25% |
| Catastrophic phase enrollee cost sharing | $0 | $0 |
| National base beneficiary premium | $38.99 | $41.33 |
Source: 2026 Medicare Trustees Report, Table V.E2; report prose (p.213): "For 2027, the initial deductible and the catastrophic threshold will be set at $700 and $2,400 respectively."
The Social Security wage base is projected for 2027 too — same Trustees Report cycle, same "not yet official" caveat.
See the 2027 wage base projection →What stays the same even as a projection
Part A stays free for almost everyone
40+ quarters of Medicare-covered work still means no Part A premium in 2027 under this projection — the $330/$600 tiers shown above only apply to the small minority who fall short.
Part B coinsurance holds at 20%
The statutory coinsurance share after the Part B deductible does not move in this projection — only the dollar deductible and premium do.
Part D catastrophic cost-sharing stays at $0
The Inflation Reduction Act's redesign eliminated cost-sharing above the out-of-pocket threshold starting in 2024 — the projection carries that forward unchanged into 2027.
Medicare premiums stay a deductible medical expense
On a standard return this only helps once itemized medical costs exceed 8% of AGI — run the numbers on the Schedule A calculator. Self-employed filers can instead use the self-employed health insurance deduction, above the line.
Frequently asked questions
How much will Medicare Part B cost in 2027?
Not yet finalized — CMS announces the real 2027 Parts A & B fact sheet around mid-November 2026. Until then, the best available figure is CMS's own Trustees Report projection: $209.50 a month, up $6.60 (3.3%) from the confirmed 2026 premium of $202.90. This is not a ustax.tools estimate.
Where does the $209.50 Part B premium figure come from?
CMS's own Office of the Actuary. The 2026 Medicare Trustees Report — the same annual report that projects the Social Security wage base — includes Table V.E2, a 10-year "intermediate estimates" projection of Part B and Part D costs produced under the same assumptions used to project the trust funds' finances. The report states directly: "In 2026 the monthly Part B premium rate is $202.90... The estimated monthly premium for 2027 is $209.50."
What is the projected Medicare Part A deductible for 2027?
$1,788, per the intermediate-estimates row of Table V.E1 in the 2026 Medicare Trustees Report — up from the confirmed $1,736 in 2026. Like every year, this deductible resets per BENEFIT PERIOD, not per calendar year, so a beneficiary readmitted after a 60-day gap could face it twice in 2027.
What is the projected Part D deductible and out-of-pocket cap for 2027?
The Trustees Report's 10-year projection puts the Part D standard-benefit deductible at $700 and the catastrophic (out-of-pocket) threshold at $2,400 for 2027, up from $615 and $2,100 in 2026. Above the threshold, enrollee cost-sharing for covered drugs stays at $0 under the Inflation Reduction Act's redesign — unchanged from 2026.
Is this projection as reliable as the CMS fact sheet?
No — treat it as CMS's own best estimate, not a determination. CMS Office of the Actuary intermediate-assumptions 10-year projection, Tables V.E1 (Part A) and V.E2 (Part B/D) of the 2026 Medicare Trustees Report — not a ustax.tools estimate and not a CMS fact-sheet determination. CMS announces the real 2027 figures in its Parts A & B fact sheet, typically mid-November 2026. CMS has historically landed close to its own Trustees Report projection, but the actual fact sheet depends on more current cost data that only exists closer to the November announcement. Bookmark this page; it will be updated with the confirmed figures once CMS publishes them.
Why did my Part B premium go up more than the standard amount?
Either an IRMAA income tier or a late-enrollment penalty — neither is projected here, since IRMAA brackets are announced with the fact sheet, not the Trustees Report. See the current, confirmed 2026 IRMAA bracket chart for the exact add-on structure; the 2027 income tiers themselves will use 2025 MAGI once announced.
Sources
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