What Is Medicare?
Medicare is the federal health insurance program primarily for people 65 and older (and some younger people with qualifying disabilities). It has four parts, and most retirees mix and match coverage from several of them:
- Part A (Hospital Insurance): Covers inpatient hospital stays, skilled nursing facility care, and hospice. Premium-free for most people who paid Medicare payroll taxes for at least 10 years.
- Part B (Medical Insurance): Covers doctor visits, outpatient care, and preventive services. Carries a monthly premium that rises with income via IRMAA.
- Part C (Medicare Advantage): A private-insurer alternative that bundles Parts A and B (and usually D) into one plan, often with extra benefits.
- Part D (Prescription Drug Coverage): Optional drug coverage through private insurers, also subject to an income-based IRMAA surcharge.
2027 Part B Premiums & IRMAA Surcharges (Projected)
The IRMAA income thresholds below are projected to increase approximately 6% from 2026 levels (CMS typically adjusts thresholds for inflation). The premium amounts are projected with a ~3% increase from confirmed 2026 figures.
| Single MAGI (Projected) | MFJ MAGI (Projected) | 2027 Projected Monthly Premium | 2026 Confirmed |
|---|---|---|---|
| ~$112,000 or less | ~$225,000 or less | ~$209.00 | $202.90 |
| ~$112,001 – ~$141,000 | ~$225,001 – ~$282,000 | ~$292.60 | $284.10 |
| ~$141,001 – ~$176,000 | ~$282,001 – ~$352,000 | ~$418.00 | $405.80 |
| ~$176,001 – ~$211,000 | ~$352,001 – ~$422,000 | ~$543.30 | $527.50 |
| ~$211,001 – ~$515,000 | ~$422,001 – ~$772,000 | ~$668.70 | $649.20 |
| Above ~$515,000 | Above ~$772,000 | ~$710.60 | $689.90 |
The projected 2027 Part B annual deductible is approximately ~$291, up from $283 in 2026.
2027 Part A Costs (Projected)
Part A deductibles and coinsurance are also adjusted annually. Applying a ~3% adjustment to 2026 confirmed amounts:
| Cost Type | 2027 Projected | 2026 Confirmed |
|---|---|---|
| Hospital deductible (per benefit period) | ~$1,788 | $1,736 |
| Days 1–60 coinsurance | $0/day | $0/day |
| Days 61–90 coinsurance | ~$432/day | $419/day |
| Lifetime reserve days (91–150) coinsurance | ~$863/day | $838/day |
| Beyond 150 days | All costs (patient responsibility) | All costs |
2027 Part D IRMAA Surcharges (Projected)
Part D surcharges are also projected to increase approximately 3% from 2026 confirmed amounts:
| Single MAGI (Projected) | MFJ MAGI (Projected) | 2027 Projected Part D Surcharge | 2026 Confirmed |
|---|---|---|---|
| ~$112,000 or less | ~$225,000 or less | $0.00 (plan premium only) | $0.00 |
| ~$112,001 – ~$141,000 | ~$225,001 – ~$282,000 | ~$14.90 | $14.50 |
| ~$141,001 – ~$176,000 | ~$282,001 – ~$352,000 | ~$38.60 | $37.50 |
| ~$176,001 – ~$211,000 | ~$352,001 – ~$422,000 | ~$62.20 | $60.40 |
| ~$211,001 – ~$515,000 | ~$422,001 – ~$772,000 | ~$85.80 | $83.30 |
| Above ~$515,000 | Above ~$772,000 | ~$93.70 | $91.00 |
How IRMAA Is Calculated
IRMAA is determined by the Social Security Administration (SSA) using your modified adjusted gross income (MAGI) from your IRS tax return two years prior. For 2027 Medicare premiums, your 2025 tax return is used.
Your MAGI for IRMAA purposes includes your adjusted gross income (AGI) plus any tax-exempt interest income (such as municipal bond interest).
Life-Changing Events
If your income has dropped significantly since 2025 due to a qualifying life-changing event, you can request a reduction by filing Form SSA-44 with the Social Security Administration. Qualifying events include:
- Marriage, divorce, or death of a spouse
- Work stoppage or work reduction
- Loss of income-producing property
- Loss of pension income
- Employer settlement payment
Plan your retirement income and Medicare costs with our free FIRE calculator
Open FIRE Calculator →See Confirmed 2026 Limits: For official CMS-published figures, see our 2026 Medicare Premiums page.
Source: CMS 2026 Parts A & B fact sheet (Part A/B premiums and deductibles) and SSA POMS HI 01101.020 (2026 Part B and Part D IRMAA sliding scales). These 2027 figures are projections computed from those confirmed 2026 amounts; the IRS, SSA and CMS publish official 2027 numbers in October–November 2026.
Frequently Asked Questions
What is the projected standard Medicare Part B premium for 2027?
The projected 2027 standard Medicare Part B monthly premium is approximately $209.00, up from the confirmed $202.90 in 2026. The official amount will be announced by CMS in November 2026.
What is IRMAA and how does it affect Medicare premiums?
IRMAA (Income-Related Monthly Adjustment Amount) is a surcharge added to Medicare Part B and Part D premiums for higher-income beneficiaries. It is based on your MAGI from your tax return two years prior. For 2027 premiums, your 2025 tax return is used. At the projected highest tier (single MAGI above ~$530,000), the Part B premium could reach approximately $648 per month.
What is the projected Medicare Part A deductible for 2027?
The projected 2027 Medicare Part A hospital deductible is approximately $1,788 per benefit period, up from $1,736 in 2026. A benefit period begins when you are admitted to a hospital and ends when you have been out of the hospital for 60 consecutive days.
Can I appeal my IRMAA surcharge if my income has decreased?
Yes. If you have experienced a qualifying life-changing event (such as retirement, divorce, death of a spouse, or significant income reduction), you can file Form SSA-44 with the Social Security Administration to request that your IRMAA be recalculated based on your more recent, lower income rather than the two-year-old tax return.
How this page is reviewed
See methodology, assumptions & sources
| Risk tier | High YMYL |
|---|---|
| Author | Calculover Editorial Team Finance and legal education |
| Editorial owner | Calculover Tax & Payroll Desk Tax and wage methodology owner |
| Reviewer | Calculover Editorial Review High-risk source and limitation review |
| Last reviewed | 2026-07-31 |
| Last verified | 2026-07-31 |
| Data effective date | 2026-01-01 |
Methodology
2027 Medicare Premiums, Deductibles & IRMAA Surcharges (Projected) applies the tax-rate, threshold, and taxable-base logic documented in the calculator formula section, then separates user-entered assumptions from statutory or source-linked rate inputs.
Assumptions
- 2027 Medicare Premiums, Deductibles & IRMAA Surcharges (Projected) relies on the values the user enters and does not independently verify income, balances, legal status, policy terms, or market quotes.
- Taxable income, deductions, credits, filing status, jurisdiction, and timing are simplified to the fields available in the calculator.
- Federal, state, local, and international tax rules can change after the listed last-verified date.
Limitations
- 2027 Medicare Premiums, Deductibles & IRMAA Surcharges (Projected) does not prepare a tax return, determine final liability, apply every credit or deduction, or account for all state, local, foreign, penalty, or surtax rules.
- Confirm current forms, thresholds, and filing obligations with the IRS, the relevant tax authority, or a qualified tax professional before filing or paying tax.
Sources
- Federal Income Tax Rates and Brackets, Internal Revenue Service
- Estimated Taxes, Internal Revenue Service
Professional guidance: 2027 Medicare Premiums, Deductibles & IRMAA Surcharges (Projected) is for tax education and planning only and is not tax, legal, accounting, or filing advice. Verify current rules with the relevant tax authority or a qualified tax professional.