Yes. A drop in income can reduce what you pay for Medicare, particularly if you are currently paying an income-related surcharge on Medicare Part B or Part D. But the reduction does not always happen immediately, and simply earning less this year does not automatically cause Medicare to recalculate next month's premium.
The key is something called the Income-Related Monthly Adjustment Amount, or IRMAA. Medicare normally uses tax information from two years earlier to determine whether you owe this additional amount. If your income has fallen because of certain major life events, however, Social Security may be able to use more recent income information instead. And if your income falls substantially, a Medicare Savings Program may offer a different form of help with premiums.
The Short Answer: IRMAA Is Where Income Matters Most
Most people with Medicare Part B pay the standard monthly premium. For 2026, that premium is $202.90.
Higher-income beneficiaries pay more through IRMAA. The surcharge applies to both Part B and Part D, although Part D works slightly differently because the IRMAA amount is added to whatever premium your prescription drug plan charges.
For 2026, the first IRMAA threshold begins above:
- $109,000 in modified adjusted gross income for an individual filer
- $218,000 for a married couple filing jointly
Above those levels, Part B premiums increase through several income brackets. At the highest 2026 bracket, the total monthly Part B premium reaches $689.90. Part D IRMAA ranges from $14.50 to $91 per month in addition to the prescription plan's premium.
You can see the current brackets in CMS's official 2026 Medicare premium amounts.
Only a minority of beneficiaries pay IRMAA, but for those who do, an income drop can make a noticeable difference.
A lower income can reduce a Medicare surcharge, but Medicare needs a reason to stop relying on the older tax return it normally uses.
Why Medicare May Still Be Looking at Your Old Salary
For 2026 premiums, Social Security generally looks at your 2024 tax return.
That two-year lag can create an obvious problem around retirement.
Imagine Patricia earned $165,000 in 2024. She retired in early 2026 and now expects annual income of about $78,000.
Her 2024 income can place her in an IRMAA bracket even though her financial situation today looks completely different.
If nothing else happens, future Medicare premium determinations should eventually reflect lower income as newer tax returns enter the normal two-year cycle. But Patricia may not necessarily have to pay the higher surcharge while waiting for that to happen.
Retirement, or what Social Security calls a work stoppage, is one of the events that may support a request for a new IRMAA determination.
That distinction is important. Medicare is not necessarily making a mistake by using Patricia's old income. It is following its standard process. What Patricia needs to show is that a recognized life-changing event makes the old tax return a poor reflection of her current income.
Not Every Income Drop Qualifies for an Immediate Reduction
This is one of the most useful details to understand before completing paperwork.
Social Security recognizes specific life-changing events for IRMAA purposes. These include situations such as:
- Marriage
- Divorce or annulment
- Death of a spouse
- Stopping work
- Reducing work hours
- Losing income-producing property because of circumstances beyond your control
- Loss or reduction of certain pension income
- Certain employer settlement payments connected with an employer's closure, bankruptcy, or reorganization
If one of these events causes household income to fall, you can ask Social Security to reconsider your IRMAA using more recent income information through its process to request a lower IRMAA.
A lower investment portfolio value by itself, a disappointing year in the stock market, or simply deciding to spend less does not automatically fit the same rules.
Likewise, moving from one IRMAA bracket to another matters only if the income Social Security accepts for the determination falls into the lower bracket.
This is why I would start with why the income changed, not merely how much it changed.
How the IRMAA Reconsideration Process Works
If your income dropped after a qualifying life-changing event, Social Security uses Form SSA-44, Medicare Income-Related Monthly Adjustment Amount, Life-Changing Event.
The form asks for information about the event and your reduced modified adjusted gross income.
Documentation matters. Depending on the situation, that might include a retirement letter, pay statements, proof of a pension reduction, a death certificate, divorce documentation, tax information, or other evidence related to both the event and your new income.
Suppose David stops working in May 2026. His 2024 income was high enough to trigger IRMAA, but his expected 2026 income after retirement will be well below the applicable threshold.
He would not simply tell Medicare, “I'm retired now.”
He would provide Social Security with evidence of the work stoppage and information supporting the lower income estimate.
If Social Security accepts the request, his Part B and Part D IRMAA can be recalculated using the lower income rather than forcing him to wait until the ordinary tax-return cycle catches up.
There is another route if the problem is an amended tax return rather than a qualifying life event. Social Security specifically instructs beneficiaries with amended tax information to contact the agency about lowering IRMAA rather than assuming SSA-44 is the appropriate route.
IRMAA relief is less about proving that retirement feels expensive and more about documenting why the income used for Medicare no longer reflects your circumstances.
What Medicare Means by Income
Another source of confusion is the phrase modified adjusted gross income, or MAGI.
For IRMAA, the calculation generally starts with adjusted gross income from the federal tax return and adds tax-exempt interest.
That means income planning can behave differently from what someone expects based solely on whether an investment is taxable for federal income tax purposes.
For example, municipal bond interest is often exempt from federal income tax, but tax-exempt interest is generally added back for the Medicare IRMAA calculation.
Other events can also push income higher for IRMAA purposes.
A large taxable retirement-account withdrawal, capital gain, pension payment, or Roth conversion may raise the income Medicare eventually sees. Charles Schwab's overview of common IRMAA income triggers highlights examples including Roth conversions, municipal bond income, required minimum distributions, and certain home-sale gains.
This does not mean those financial moves are mistakes.
A Roth conversion, for instance, might make excellent sense within someone's broader retirement and tax strategy even if it temporarily raises Medicare premiums two years later.
The mistake is making the decision while assuming Medicare will ignore the income.
Be Careful With Popular “Reduce Your MAGI” Advice
There is plenty of retirement advice built around avoiding IRMAA thresholds, and some of it is too simplistic.
A particularly important example is Roth conversions.
Converting traditional IRA money to a Roth IRA generally creates taxable income in the year of conversion. That means a conversion can increase, not reduce, the MAGI used for a future IRMAA determination.
The potential long-term advantage is different: qualified Roth distributions generally are not included in taxable income. So building Roth assets earlier can sometimes provide more flexibility over taxable retirement income later.
Timing matters.
Qualified charitable distributions can also affect taxable retirement income differently from withdrawing IRA money personally and then making a charitable gift. Current IRS rules explain how IRA distributions and QCDs are treated for federal income-tax purposes.
These are tax-planning decisions, not Medicare tricks. The right approach depends on taxes, retirement withdrawals, charitable plans, cash flow, and other financial considerations. For substantial transactions, I would involve a qualified tax or financial professional rather than making a decision solely to move below an IRMAA line.
There is also a common HSA misconception. Once someone is enrolled in Medicare, that person generally can no longer contribute to a traditional HSA, although existing HSA money remains available under applicable rules. So “increase HSA contributions” is not normally a Medicare-age IRMAA strategy after enrollment.
Crossing an IRMAA Threshold Can Matter More Than the Amount Over It
IRMAA does not phase in dollar by dollar.
It works through income brackets.
That means someone whose income moves just beyond a threshold can face the full surcharge associated with the next bracket.
For example, for an individual filer in 2026:
- At $109,000 or less, the standard $202.90 Part B premium applies.
- Above $109,000 through $137,000, the total rises to $284.10 per month.
- Above $137,000 through $171,000, it rises to $405.80.
- Additional brackets continue from there.
Part D adds its own income-related amount at the same income breakpoints.
For married couples filing jointly, the corresponding first threshold is $218,000.
Special rules apply to people who are married, lived with their spouse during the tax year, and file separately, so I would not assume that halving the joint-filer thresholds gives the right answer.
With IRMAA, being slightly above a bracket can matter more than the number of dollars by which you crossed it.
This does not mean people should distort an otherwise sound financial plan simply to avoid a surcharge. But if income is naturally close to a threshold, recognizing the Medicare consequence can be useful when planning discretionary taxable transactions.
A Four-Step Check After Your Income Falls
1. Confirm whether you are actually paying IRMAA.
Look at the Social Security notice explaining your Part B and Part D income-related adjustment.
Do not confuse IRMAA with your ordinary Part B premium, a Medicare Advantage premium, a Medigap premium, or a Part D plan premium.
An income reduction does not automatically make all of those costs fall.
2. Identify the tax year Medicare is using.
For 2026, Social Security generally relies on 2024 income.
Compare that income with what you realistically expect after the change.
If the difference is temporary or small, the result may be different from a permanent retirement-related reduction.
3. Ask whether the reason qualifies for faster reconsideration.
Retirement and reduced work hours commonly create this situation.
If you experienced a qualifying life-changing event, gather the evidence and review SSA-44 rather than waiting for the two-year tax lag to resolve itself.
4. Recheck your next tax return.
Even after an IRMAA adjustment, keep an eye on the income actually reported.
Investment gains, retirement distributions, conversions, business income, pension payments, and other taxable events can change the final number.
An estimate used during an IRMAA reconsideration should be realistic rather than simply aimed at reaching a lower bracket.
A Much Larger Income Drop Can Open Another Door
IRMAA is mainly a higher-income surcharge. But if someone's retirement income falls much further, another Medicare program may become relevant.
Medicare Savings Programs are state-administered programs that can help eligible people with limited income and resources pay Medicare costs.
Depending on the program, assistance can include the Part B premium and, in some cases, Medicare deductibles, coinsurance, and copayments.
Federal income and resource limits are updated periodically, and states can use rules that are more generous than the federal baseline. Medicare's current Medicare Savings Program limits list the 2026 figures and explain how to apply through the state.
This is fundamentally different from an IRMAA appeal.
An IRMAA reconsideration says, in effect, “The older income Medicare used no longer reflects my circumstances.”
A Medicare Savings Program says, “My current finances may qualify me for assistance paying Medicare costs.”
Someone whose income falls substantially after retirement may want to investigate both questions rather than assuming premium help begins and ends with IRMAA.
What Income Does Not Change
A useful Medicare budget separates income-related premiums from costs that follow other rules.
For example, Part A is premium-free for most beneficiaries because they or a spouse paid Medicare taxes long enough while working. A drop in current income does not make premium-free Part A “more free,” and people who must buy Part A face premiums based primarily on Medicare-covered work history rather than IRMAA.
A Medicare Advantage plan's own additional premium is also established by the plan, not directly recalculated according to your income. You still owe the applicable Part B premium and any IRMAA while enrolled in Medicare Advantage.
Likewise, a Medigap insurer does not lower its premium simply because your income fell. Medigap pricing follows the policy's rating and state rules.
Knowing which premium you are looking at can save a great deal of confusion.
The Quote Check!
If your income has dropped and your Medicare bill still looks high, I would check these five things:
- Check whether the extra charge is IRMAA: Identify the standard Part B premium, Part B IRMAA, Part D IRMAA, and any private-plan premiums separately.
- Check the tax-year lag: For 2026, Medicare generally looks at 2024 MAGI. A high premium may be reflecting working income you no longer receive.
- Check why the income fell: Retirement, reduced work, divorce, death of a spouse, and certain other events can support a request for a new determination.
- Check the income calculation itself: Tax-exempt interest and taxable retirement transactions can affect IRMAA even when they do not feel like ordinary wages.
- Check for broader premium assistance: If income and resources have fallen substantially, investigate Medicare Savings Programs rather than focusing only on IRMAA.
When an Old Tax Return No Longer Tells the Whole Story
A Medicare premium can go down after your income falls, but the path depends on why it fell and which Medicare cost you are trying to reduce.
If you are paying IRMAA, lower income will ordinarily work its way into future Medicare calculations as newer tax returns become available. A qualifying life-changing event such as retirement may allow Social Security to recognize the change sooner. And if your income drops into a much lower range, a Medicare Savings Program may provide a separate form of premium assistance.
I would start with the notice showing exactly what you are paying, identify the tax year behind the surcharge, and then match the income change to the correct Medicare or Social Security process. The old income figure may explain the quote, but it does not always have to determine what you keep paying now.
Marlowe Quinn