The highest Medicare premium depends on your income, not your age

Medicare Part B and Part D premiums increase for people whose income exceeds certain thresholds. In 2024, the highest Part B premium is $174.70 per month for a single person with income above $194,000, and the highest Part D premium varies by plan but can reach $100 or more monthly. These amounts change each year. The income limits that trigger higher premiums also shift annually, so what counts as "high income" this year may differ next year.

You pay higher premiums through a process called Income-Related Monthly Adjustment Amount (IRMAA). Medicare calculates this based on your tax return from two years prior. If your income was high in 2022, you would see the adjustment on your 2024 premiums. This two-year lag matters because your circumstances may have changed since that tax return was filed.

Key Takeaways

  • Medicare Part B premiums in 2024 reach $174.70 monthly for single people earning over $194,000 annually, with higher amounts for married couples filing jointly.
  • Part D prescription drug premiums vary by plan and insurer, but the highest plans can exceed $100 per month before any IRMAA adjustment.
  • IRMAA uses your tax return from two years before the current year, so changes in your income take time to show up in your premiums.
  • You can request a review if your income dropped due to retirement, job loss, or death of a spouse, and Medicare may lower your premiums when ready rather than waiting two years.

How Part B premiums climb with income

Part B covers doctor visits and outpatient care. The standard premium in 2024 is $164.90 per month for most people. But if your modified adjusted gross income (MAGI) exceeds $194,000 as a single filer or $388,000 as a married couple filing jointly, you pay more. Medicare sets five income brackets, each with a higher premium tier.

A single person earning $250,000 per year would pay roughly $230 monthly for Part B instead of $164.90. A married couple with combined income of $500,000 would pay around $290 each. These figures are based on 2024 rates and will increase in 2025. The exact amounts depend on which income bracket you fall into, and Medicare publishes the brackets each October for the following year.

Part D prescription drug premiums and income adjustments

Part D premiums are set by individual insurance companies, so they vary widely. A basic plan might cost $15 to $30 monthly, while a plan with more generous coverage could cost $80 to $120 monthly. When IRMAA applies, you pay an additional amount on top of your plan's base premium. For the highest income bracket in 2024, that adjustment can add $80 or more per month to your Part D cost.

Unlike Part B, which has a single standard premium that everyone in the same income bracket pays, Part D premiums depend on which plan you choose. Two people with identical incomes might pay different total Part D costs if they selected different plans. This is why comparing plans during the annual enrollment period matters, especially if you know your income will be high enough to trigger IRMAA.

When IRMAA kicks in and how to request a review

IRMAA applies automatically if your income exceeds the threshold. You do not have to do anything to trigger it — Medicare calculates it based on your tax return. However, if your income dropped significantly since that tax return was filed, you can request a review. Common reasons include retirement, job loss, death of a spouse, or a major reduction in investment income.

To request a review, contact Social Security at 1-800-772-1213 or visit your local Social Security office. You will need to provide documentation of the income change, such as a termination letter from your employer or a death certificate. If Medicare approves your request, they can adjust your premiums when ready rather than waiting for the next tax year to cycle through. This process typically takes a few weeks.

Married couples and how income is counted

If you are married and file taxes jointly, Medicare counts your combined income to determine IRMAA. This means even if only one spouse has high income, both spouses may pay higher premiums if the household total exceeds the threshold. The income limit for married couples filing jointly is roughly double the single filer limit, but not quite — in 2024, it is $388,000 for couples versus $194,000 for singles.

If you are married but file separately, Medicare uses your individual income, and the income threshold is much lower — only $97,000 in 2024. Filing separately can sometimes result in lower Medicare premiums, but it often increases your overall tax burden. Before changing your filing status to lower Medicare costs, speak with a tax professional about the full impact on your taxes and benefits.

How premiums change year to year

Medicare announces new premium amounts and income thresholds each October for the following year. Part B premiums can increase significantly if Medicare's costs rise. In recent years, Part B premiums have jumped by $10 to $20 per month from one year to the next. Part D premiums are set by each insurance company and can change even more dramatically.

The income thresholds for IRMAA also adjust annually, usually increasing slightly to account for inflation. If your income stays the same but the threshold rises, you might move into a lower IRMAA bracket and pay less. Conversely, if your income grows faster than the threshold increases, you could move into a higher bracket. Reviewing your estimated income each fall helps you anticipate what your premiums will be.

Strategies to manage high premiums

If you know your income will be high, you have limited options to reduce Medicare premiums directly. IRMAA is based on your tax return, so legal tax-reduction strategies might help. Contributions to traditional IRAs, 401(k)s, or health savings accounts can lower your MAGI. However, these strategies work best when planned in advance with a tax advisor, not after you have already filed your return.

Another consideration is timing major income events. If you are planning to retire or sell an asset, the year you do so affects your MAGI for the following two years of Medicare premiums. Someone retiring mid-year might have lower income that year, which would lower their Medicare premiums two years later. Again, this requires planning with a tax professional to weigh all the consequences.

Frequently Asked Questions

What is the absolute highest Medicare premium anyone pays?

In 2024, the highest Part B premium is $174.70 monthly for single filers earning over $194,000. Part D premiums vary by plan but can exceed $100 monthly before IRMAA. Combined with IRMAA adjustments, some people pay $250 or more monthly for Part B and Part D together. These amounts increase each year.

Can I appeal my IRMAA if I think it is wrong?

Yes. Contact Social Security at 1-800-772-1213 to request a review. If your income has genuinely changed since the tax return Medicare used, you can provide documentation and ask for an adjustment. Social Security will determine whether your circumstances may have access to for a review and may adjust your premiums when ready.

Does my spouse's income affect my Medicare premiums if we file separately?

No. If you file taxes separately, Medicare uses only your individual income to calculate IRMAA. However, filing separately often increases your overall tax burden significantly, so consult a tax professional before making this change solely to lower Medicare premiums.

What happens to my premiums if I retire mid-year?

Your premiums two years from now will be based on your income for the current year. If you retire mid-year, your total income that year will be lower, which may result in lower IRMAA adjustments starting two years later. Planning the timing of retirement with a tax advisor can help you understand the full impact.

Are there any programs that help pay high Medicare premiums?

Medicaid may cover Medicare premiums for people with low income and assets, even if their Medicare income is high. Some states also have programs that help with Medicare costs. Contact your state Medicaid office or local Area Agency on Aging to learn what programs may be available in your area.