Annual Enrollment Period5 min read

2025 Annual Updates for Medicare Part A and Part B Programs, and the Part D Income-Related Monthly Adjustment Amounts

Published on 03 Nov 2025

Medicare Part B Premium and Deductible

In 2025, Medicare Part B will increase to $185.00 from 2024’s $174.70 monthly premium—a $10.30 increase from last year. The annual deductible for Medicare Part B will also increase to $257 from $240 in 2024.1

Medicare Part B 2025 vs 2024 Premiums and Deductibles

Medicare Part B

2025

2024

Monthly Premium

$185.00

$174.70

Annual Deductible

$257

$240

Medicare Part B and Part D Income-Related Monthly Adjustment Amounts (IRMAA)

Don’t forget that Medicare Part B and Part D have a surcharge on premiums for higher income earners. Income-Related Monthly Adjustment Amounts(IRMAA) are applied to Part B and Part D premiums based on your modified adjusted gross income (MAGI) of two years ago. This means that your 2023 tax return will determine your IRMAA surcharge for 2025. Roughly 8% of Medicare Part B enrollees are affected by IRMAA.2

The income brackets for IRMAA increased between brackets. In 2024, the first tier of single income earners making between $103,001 and $129,000 paid an IRMAA charge of $69.90 on their Part B premium for a total of $244.60 per month. In 2025, this same income range shifted to $106,001-$133,000—an increase from 2024—with an IRMAA charge of $74.00, making the monthly total $259.00. That’s an increase of $14.40 in IRMAA changes for the first tier for single earning taxpayers grossing above the base Part B premium. The subsequent changes in surcharges between income brackets range from $20.60 to $34.90 more per month than in 2024, as outlined in the chart below.3

Part B and Part D Monthly IRMAA Surcharges

Single Filer

Married Filing Jointly

Part B Premium

Part D Premium

$106,000 or less

$212,000 or less

$185.00

$0

$106,001 to $133,000

$212,001 to $266,000

$259.00 (+ $74.00 surcharge)

$13.70 + Plan Premium

$133,001 to $167,000

$266,001 to $334,000

$370.00 (+ $185.00 surcharge)

$35.30 + Plan Premium

$167,001 to $200,000

$334,001 to $400,000

$444.00 (+ $259.00 surcharge)

$78.60 + Plan Premium

$200,001 to $499,999

$400,001 to $749,999

$591.90 (+ $406.90 surcharge)

$78.60 + Plan Premium

$500,000 or greater

$750,000 or greater

$628.90 (+ $443.90 surcharge)

$85.80 + Plan Premium

For couples that are married but filing separately, their total monthly Part B premium will be:4

  • $591.90 if income is $106,001 to $393,999 (+ $406.90 surcharge) and a $78.60 surcharge on their Part D plan premium

  • $628.90 if income is $394,000 or greater (+ $443.90 surcharge) and a $85.80 surcharge on their Part D plan premium

Medicare Part A Premium

About 99 percent of Medicare enrollees do not have to pay a premium for Part A since they have contributed at least 40 quarters in Medicare taxes or receive premium-free eligibility from their spouse. However, if you don’t qualify for premium-free Medicare Part A, here’s the increase you’ll pay:5

Medicare Part A Monthly Premium

Quarters

2025

2024

40 or more

Free

Free

30 to 39

$285

$278

29 or less

$518

$505

Medicare Part A Deductibles and Coinsurance

Medicare Part A deductibles and coinsurance will both increase in 2025 for any inpatient hospital admissions and time spent in a skilled nursing facility.6 

Medicare Part A Deductibles and Coinsurance 2024 vs 2025

2025

2024

Difference

Inpatient Hospital Deductible

$1,676

$1,632

+ $44

Daily Coinsurance for 61 to 90 Days

$419

$408

+ $11

Daily Coinsurance for Lifetime Reserve Days

$838

$816

+ $22

Skilled Nursing Facility Coinsurance

$209.50

$204

+ $5.50

Increases were seen in Medicare Parts A & B, as well as Part D IRMAA across all premiums, deductibles, and coinsurance. If you’re in the middle of picking your plan, be sure to calculate your total costs including all plan premiums, supplements, and out-of-pocket costs to see how much you’ll need to budget for healthcare.

Need help deciding what’s best for you? 

It can be very helpful to work directly with a licensed insurance advisor who can help you choose the plan that is right for you.

Your partners at Silvur Insurance are here to help and can meet with you one-on-one, over the phone, or even virtually - all, at no cost to you!


SOURCES:

1. “2025 Medicare Parts A & B Premiums and Deductibles.” CMS.gov, 8 November 2024, https://www.cms.gov/newsroom/fact-sheets/2025-medicare-parts-b-premiums-and-deductibles. Accessed 12 November 2024. 

2. “Medicare Premiums 2025: IRMAA for Parts B and D.” Kiplinger, 9 November 2024, https://www.kiplinger.com/retirement/medicare/medicare-premiums-2025-irmaa-for-parts-b-and-d. Accessed 12 November 2024.

3. “2025 Medicare Parts A & B Premiums and Deductibles.” CMS.gov, 8 November 2024, https://www.cms.gov/newsroom/fact-sheets/2025-medicare-parts-b-premiums-and-deductibles. Accessed 12 November 2024. 

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