Medicare premiums come directly out of your Social Security payment, which means a premium increase lowers the money you actually receive each month
If you receive Social Security and are enrolled in Medicare Part B (medical insurance) or Part D (prescription drug coverage), your monthly Social Security payment is reduced by the amount of those premiums. When Medicare premiums rise — which happens most years — your net Social Security income falls even if your benefit amount itself did not change. This is different from other expenses you pay; Medicare straightforward deducts its cost before you see the money.
The amount deducted depends on your income level. Medicare uses a formula called Income-Related Monthly Adjustment Amounts (IRMAA) that can raise your premiums significantly if your income exceeds certain thresholds. For 2024, those thresholds start at $97,000 for single filers and $194,000 for married couples filing jointly, based on your income from two years prior. If you cross these lines, you pay a higher percentage of the actual cost of Part B and Part D coverage.
The reduction happens automatically through what is called premium withholding. Medicare sends the bill to Social Security, Social Security deducts it from your payment, and you receive the remainder. You do not have a choice to pay the premium separately if you want to keep your Social Security intact.
Key Takeaways
- Medicare Part B and Part D premiums are deducted directly from your monthly Social Security payment, reducing the amount of money you take home.
- Income-Related Monthly Adjustment Amounts (IRMAA) can double or triple your Medicare premiums if your income exceeds $97,000 (single) or $194,000 (married), based on your tax return from two years ago.
- Premium increases happen most years, and when they do, your Social Security payment shrinks by that amount unless your benefit itself increased.
- You can request a Medicare premium reduction if your income dropped due to retirement, divorce, or death of a spouse, but you must file a form with Social Security within 60 days of the event.
How much Medicare premiums reduce your Social Security payment
The standard Part B premium for 2024 is $174.70 per month for most beneficiaries. Part D premiums vary by plan and region, typically ranging from $7 to $100 per month depending on which drug plan you choose. If you have both, you are looking at roughly $180 to $275 per month in total premiums, though some people pay less and some pay significantly more.
If your income triggers IRMAA, the reduction is steeper. Someone with income between $97,001 and $123,000 (single filer) pays an additional surcharge on top of the standard premium. The highest income tier pays roughly three times the standard Part B premium. These surcharges explore to both Part B and Part D, so the total monthly deduction from your Social Security can reach $500 or more for high-income beneficiaries.
The exact amount you pay depends on your Modified Adjusted Gross Income (MAGI) from your tax return filed two years before the current year. Social Security and Medicare use that historical income figure to set your premiums for the current year. This means a large income event — such as selling a home or taking a lump-sum distribution from a retirement account — can affect your premiums for years after the event itself.
When Medicare premiums increased and reduced Social Security payments
Medicare premiums have risen nearly every year for the past two decades. Part B premiums increased by $12.50 in 2023 and by $10.30 in 2024. Part D premiums also typically increase annually, though the amount varies by plan. When these increases happen, they are automatically deducted from your Social Security payment the following month.
In some years, Social Security cost-of-living adjustments (COLA) have been smaller than the Medicare premium increase. This means your benefit went up, but your net payment — the amount after Medicare premiums — actually went down. For example, if your Social Security increased by $25 but your Medicare premiums rose by $35, you would receive $10 less than you did the previous month, despite the benefit increase.
The relationship between COLA and premium increases is not may provide to work in your favor. Social Security COLA is based on inflation measured by the Consumer Price Index. Medicare premiums are based on the actual cost of providing medical services, which can rise faster or slower than general inflation. There is no rule that says COLA must exceed premium increases.
Income thresholds that trigger higher Medicare premiums
Medicare calculates your premium surcharge using your Modified Adjusted Gross Income (MAGI) from two years prior. For 2024, the income thresholds are:
| Filing Status | Income Threshold | Premium Surcharge Applies |
|---|---|---|
| Single | $97,000 | Yes, if income exceeds this amount |
| Married filing jointly | $194,000 | Yes, if income exceeds this amount |
| Married filing separately | $97,000 | Yes, if income exceeds this amount |
MAGI includes your adjusted gross income plus tax-exempt interest, half of your Social Security benefits, and certain other income sources. This means Social Security itself counts toward the threshold that determines whether you pay a surcharge on Medicare. If you have other retirement income — pensions, investment income, rental income — those also count.
The surcharge is tiered. The lowest surcharge tier begins just above the threshold. The highest tier applies to single filers with income over $500,000 and married filers with income over $750,000. At the highest tier, you pay approximately three times the standard Part B premium and roughly double the standard Part D premium.
How to request a reduction in Medicare premiums if your income dropped
If your income decreased after the year Medicare used to calculate your premiums, you can request a reduction. Common reasons include retirement, divorce, death of a spouse, or loss of income from an investment or business. You must file a request within 60 days of the event that caused your income to drop.
The form you need is Form CMS-L564, titled "process to Request an Adjustment to Your Medicare Part B Premium Amount Due to Life-Changing Event." You submit it to Social Security, not directly to Medicare. Social Security will forward it to Medicare on your behalf. You will need to provide documentation of the income-reducing event — a divorce decree, a death certificate, a termination letter from an employer, or a recent tax return showing the lower income.
If Social Security approves your request, your premium adjustment takes effect the month after approval. The reduction applies only to the current year; Medicare will recalculate your premiums the following year based on your updated income. If you do not request an adjustment within the 60-day window, you will pay the higher premium for the full year.
Strategies to manage the impact of Medicare premiums on Social Security
One approach is to time large income events carefully. If you are planning to sell a home, take a retirement account distribution, or realize investment gains, doing so in a year when you are not yet on Medicare can reduce the impact on your future premiums. However, this requires advance planning and may not be possible for everyone.
Another consideration is the type of retirement account you withdraw from. Withdrawals from traditional IRAs and 401(k)s count as income for IRMAA purposes. Withdrawals from Roth IRAs do not count as income, though you must have held the Roth for at least five years. If you have both types of accounts, withdrawing from a Roth in a year when you are close to an IRMAA threshold can help you stay below it.
Some people delay Social Security to reduce the total amount of income counted toward IRMAA. If you are still working and have not yet claimed Social Security, your current employment income will trigger higher Medicare premiums once you turn 65 and enroll in Medicare. Waiting to claim Social Security until after you retire can lower your MAGI in the years you are on Medicare.
You can also review your Medicare plan choices each year during the annual enrollment period (October 15 to December 7). Different Part D plans have different premiums, and switching to a lower-cost plan can reduce the total amount deducted from your Social Security. Part B has no plan choices, but understanding how much it will cost helps you budget for the reduction.
How Social Security and Medicare coordinate the premium deduction
When you first enroll in Medicare Part B at age 65, Medicare sends your premium information to Social Security. Social Security then deducts the premium from your monthly benefit payment starting the month after you turn 65 (or the month after you become may be able to access, if you delay enrollment). The deduction continues every month you receive both Social Security and Medicare.
If your premium changes, Medicare notifies Social Security of the new amount. Social Security updates the deduction in your next payment. You receive a notice from Medicare explaining the change, but the actual reduction happens automatically through Social Security's payment system.
If you have questions about the amount being deducted, you can contact Social Security to verify the premium amount Medicare reported. Social Security's role is only to deduct what Medicare bills; Social Security does not set the premium amount. To dispute a premium amount or request an adjustment, you must work with Medicare or file a request with Social Security if you believe a life-changing event qualifies you for a reduction.
Frequently Asked Questions
Can I refuse Medicare Part B to keep my full Social Security payment?
You can decline Part B when you first turn 65, but if you wait to enroll later, you will face a permanent penalty on your premiums for as long as you have Medicare. The penalty is 10 percent of the standard Part B premium for each year you delayed enrollment. For most people, the penalty over time costs more than the premiums you would have paid if you enrolled on time.
What if my Medicare premium is more than my entire Social Security payment?
This is rare, but if it happens, Social Security will deduct the maximum amount it can without reducing your payment below zero. Medicare will bill you directly for any remaining balance. Contact Social Security and Medicare when ready to review your income and request an adjustment if a life-changing event reduced your income.
Do I have to pay Medicare premiums if I am still working and receiving Social Security?
Yes. If you are enrolled in Medicare, you pay premiums regardless of whether you are working. Your premiums may be higher if your current work income pushes you into a higher IRMAA tier. The income used for IRMAA is from your tax return filed two years prior, so your current year's work income will not affect your premiums until two years later.
Can I appeal a Medicare premium increase?
You can request a review if you believe Medicare calculated your IRMAA incorrectly or if a life-changing event reduced your income after the year Medicare used. You have 60 days from the date on your premium notice to request an appeal. Contact Medicare directly or file Form CMS-L564 with Social Security if the income change qualifies as a life-changing event.
Will my Social Security COLA increase cover my Medicare premium increase?
Not always. Social Security COLA is based on inflation, while Medicare premiums are based on the cost of medical services. In years when medical costs rise faster than general inflation, your COLA may not fully offset the premium increase, and your net Social Security payment could decrease despite receiving a benefit increase.