A retired teacher in suburban Phoenix sells the house she bought in 1987, pockets a six-figure gain, and moves into a smaller condo. Two years later, her Medicare Part B premium jumps by nearly $1,000 for the year. She has not gone back to work. Her pension has not changed. The only thing different on her 2024 tax return was the home sale, and now the Social Security Administration is treating her as a higher-income beneficiary.
This is how the Income-Related Monthly Adjustment Amount, known as IRMAA, works in practice. For 2026, the surcharge kicks in at the first dollar above $109,000 in modified adjusted gross income for individual filers, and it is calculated using 2024 tax returns. A one-time spike from selling property, converting a retirement account, or cashing out investments can trigger a full year of higher premiums. The first-tier surcharge works out to about $974 per year (the headline rounds to “about $900” because the exact figure depends on whether a beneficiary also faces Part D adjustments and on rounding conventions across CMS publications). The SSA does allow appeals through Form SSA-44, but a home sale does not fit neatly into the agency’s list of qualifying events, and there is almost no public data on how often these appeals succeed.
How the 2026 IRMAA brackets work
Every Medicare beneficiary pays a standard Part B premium. For 2026, the Social Security Administration set that amount at $202.90 per month. Beneficiaries whose modified adjusted gross income on their 2024 federal tax return exceeds $109,000 (individual) or $218,000 (married filing jointly) pay a monthly surcharge on top of that base.
At the first IRMAA tier, the total monthly premium rises to $284.10, an increase of $81.20 per month, or about $974 over a full year. The surcharge escalates through several brackets. According to the U.S. Railroad Retirement Board, the highest-income beneficiaries (individual MAGI above $500,000 or joint MAGI above $750,000) pay $689.90 per month in 2026, nearly $5,850 more per year than someone at the standard rate. The 2026 Part B annual deductible is $283.
IRMAA also applies to Medicare Part D prescription drug coverage, adding a separate monthly surcharge that follows the same income brackets. At the first tier, the Part D IRMAA surcharge is $13.70 per month, or about $164 per year. Combined with the Part B surcharge, a beneficiary at the lowest IRMAA tier faces roughly $1,138 in total additional annual premiums. At the highest tier, the Part D surcharge reaches $81.00 per month, or about $972 per year.
The timing mechanism is what catches people off guard. The SSA determines 2026 premiums based on IRS data from tax year 2024, which most filers submitted in early 2025. That two-year lookback means a large capital gain realized in 2024, whether from selling a home, liquidating investments, or converting a traditional IRA to a Roth, will inflate the income figure the SSA uses even if the retiree’s regular annual earnings are well below the threshold. Medicare Advantage enrollees are not exempt: they still pay Part B premiums, including any IRMAA surcharge, on top of their plan’s own costs.
Why home sales create a particular problem
Federal tax law (Internal Revenue Code Section 121) excludes up to $250,000 of capital gain on a primary residence for single filers, or $500,000 for married couples filing jointly, from taxable income. But if the profit exceeds the exclusion, or if the homeowner does not meet the ownership and use requirements, some or all of the gain lands on the tax return as part of MAGI.
Even a partially excluded gain can push MAGI past the first IRMAA threshold. A single filer with $80,000 in pension and Social Security income who reports $50,000 in taxable home-sale profit above the exclusion would show $130,000 in MAGI, enough to trigger the first surcharge tier. That retiree would pay roughly $974 more in Part B premiums for 2026, despite having no lasting change in annual income.
Because IRMAA is recalculated every year, the surcharge typically drops off once the high-income year falls out of the lookback window. But for the 12 months it applies, the added cost can strain a fixed-income budget, especially when it coincides with moving expenses, closing costs, and other transition costs around a home sale.
What Form SSA-44 can and cannot do
The SSA acknowledges that a single high-income year does not always reflect a person’s ongoing ability to pay. Beneficiaries can request a reduction by reporting a “life-changing event that reduced your household income.” The agency’s published list of qualifying events includes:
- Marriage, divorce, or death of a spouse
- Work stoppage or work reduction
- Loss of income-producing property
- Loss of pension income
- Receipt of a settlement from an employer or former employer due to the employer’s closure, bankruptcy, or reorganization
Form SSA-44 can be submitted online through the SSA’s IRMAA reduction page, by fax, by mail, or in person at a local SSA field office. Applicants must identify the qualifying event, provide the date it occurred, and estimate their MAGI for the relevant year and the following year. Supporting documentation, such as a letter from an employer confirming retirement or a pension statement showing reduced payments, strengthens the case. Filing is free, and a denied request carries no penalty.
Here is where home sales get complicated. Selling a primary residence is not explicitly listed among the qualifying life-changing events. A retiree whose income spiked solely because of a home sale would need to argue that the event falls under “loss of income-producing property” (a stronger argument if the home had been generating rental income) or demonstrate that a separate qualifying event, such as retirement, occurred in the same period and drove income down. Without a clean match to one of the listed categories, the appeal rests on the SSA reviewer’s interpretation.
Tax professionals and financial planners who regularly file these appeals say that requests tied to clear-cut events like retirement, job loss, or the death of a spouse tend to be approved when documentation is strong and the income decline is obvious. Requests connected to investment gains or property sales draw closer scrutiny, particularly when the asset was not clearly income-producing before it was sold. The SSA has not published approval rates for IRMAA appeals, so no official statistics exist to confirm or quantify these observations.
Beneficiaries whose SSA-44 request is denied do have further recourse. They can request a formal reconsideration, and if that is also denied, they can appeal to an administrative law judge. These later stages are uncommon for IRMAA disputes, but the right to pursue them exists under the same appeals framework that covers other Social Security and Medicare decisions.
Why there is so little data on IRMAA appeals
Neither the SSA nor the Centers for Medicare & Medicaid Services has released detailed data on how many IRMAA determinations are appealed each year, how frequently Form SSA-44 requests are granted, or which life-changing events most often lead to a reduction. Public reporting focuses on premium levels and the number of beneficiaries subject to IRMAA, not on outcomes when someone contests the surcharge.
That gap leaves individual retirees guessing about whether filing an appeal is worth the effort. It also makes it difficult for policymakers and advocates to evaluate whether IRMAA is functioning as intended. The surcharge is designed to ask more of beneficiaries with genuinely higher incomes, but without data on appeals, there is no clear picture of how often people with only a temporary income spike are swept into higher brackets or how consistently SSA field offices interpret the qualifying-event categories.
As of June 2026, no pending federal legislation or CMS rulemaking would change the IRMAA bracket structure or expand the list of qualifying life-changing events. The thresholds are adjusted annually for inflation, but the two-year lookback and the appeal framework have remained largely unchanged since IRMAA took effect in 2007.
How to respond to a surprise IRMAA notice
Retirees who received a 2026 IRMAA notice tied to a one-time income event have several concrete options:
File Form SSA-44 if any qualifying event applies. Pair the form with the strongest available documentation: a closing statement from the home sale, proof of retirement or reduced work, and a written estimate of current-year income showing the spike was temporary. Scheduling a phone or in-person appointment at a local SSA office can sometimes be more effective than mailing the form, because a representative can review the paperwork in real time and flag missing items.
If no qualifying event fits, plan for the cost. The surcharge lasts one calendar year. For someone at the first tier, that is roughly $974 in additional Part B premiums. Budgeting for it as a known, temporary expense is often the most realistic approach.
Plan future transactions with IRMAA in mind. Strategies that tax advisors commonly recommend include spreading Roth conversions across multiple tax years, timing asset sales to stay below IRMAA thresholds, and coordinating the sale of a home with a year in which other income is lower. None of this helps retroactively, but it can prevent a repeat.
IRMAA’s two-year lookback means the financial consequences of a 2024 decision land in 2026, long after the transaction is done. The SSA offers a formal appeals process, but until the agency publishes clearer data on outcomes or Congress revisits the qualifying-event list, retirees caught by a single unusual tax year are left navigating a system that provides a path to relief without much guidance on where that path actually leads.
Warren Cohen is a finance writer based in Phoenix, Arizona, covering personal finance topics including credit, banking, and beginner investing. He earned his degree in business administration from Arizona State University and began his career working in consumer finance, where he gained direct experience with lending and credit systems. He now writes for personal finance websites and fintech platforms, focusing on clear, practical content that helps readers make informed financial decisions.
