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 | ~$224,000 or less | ~$190.00 | $185.00 |
| ~$112,001 – ~$141,000 | ~$224,001 – ~$282,000 | ~$267.00 | $259.00 |
| ~$141,001 – ~$177,000 | ~$282,001 – ~$354,000 | ~$381.00 | $370.00 |
| ~$177,001 – ~$212,000 | ~$354,001 – ~$424,000 | ~$495.00 | $480.90 |
| ~$212,001 – ~$530,000 | ~$424,001 – ~$795,000 | ~$610.00 | $591.90 |
| Above ~$530,000 | Above ~$795,000 | ~$648.00 | $628.90 |
The projected 2027 Part B annual deductible is approximately ~$265, up from $257 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) | ~$1,726 | $1,676 |
| 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 | ~$224,000 or less | $0.00 (plan premium only) | $0.00 |
| ~$112,001 – ~$141,000 | ~$224,001 – ~$282,000 | ~$14.10 | $13.70 |
| ~$141,001 – ~$177,000 | ~$282,001 – ~$354,000 | ~$36.40 | $35.30 |
| ~$177,001 – ~$212,000 | ~$354,001 – ~$424,000 | ~$58.70 | $57.00 |
| ~$212,001 – ~$530,000 | ~$424,001 – ~$795,000 | ~$81.00 | $78.60 |
| Above ~$530,000 | Above ~$795,000 | ~$88.40 | $85.80 |
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.
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 $190.00, up from the confirmed $185.00 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 $1,726 per benefit period, up from $1,676 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.