So, you’ve finally done it. You’ve traded the sprawling traffic of North Austin or the humidity of Houston for the limestone bluffs and quiet cypress-lined banks of Wimberley. You’ve found the perfect Hill Country home: maybe one with a view of the Blanco River or a porch perfect for watching the deer wander by at dusk.
But while you’re picking out furniture and finding your new favorite spot for coffee in the Square, there’s a quiet “gotcha” waiting for many retirees who sell a high-value home to make their Wimberley dreams a reality.
It’s called IRMAA.
If you haven’t heard the term yet, don’t worry: most people don’t until they get a surprising letter in the mail from the Social Security Administration. IRMAA stands for Income-Related Monthly Adjustment Amount, and if you aren’t careful, selling your long-term family home could trigger a massive spike in your Medicare premiums for years to come.
Here is why IRMAA should be a central part of your retirement relocation strategy and how to keep your move to Wimberley from becoming a tax-time headache.
What Exactly is IRMAA?
Most retirees pay a standard premium for Medicare Part B (medical insurance) and Part D (prescription drug coverage). However, if your income exceeds certain thresholds, the government decides you can afford to pay a bit more. That “bit more” is the IRMAA surcharge.
The catch? Medicare doesn’t look at your current income. They look at your Modified Adjusted Gross Income (MAGI) from two years ago. This is known as the “two-year look-back.”
For example, if you are planning your retirement budget for 2026, Medicare is actually looking at the tax return you filed for 2024. This delay is exactly where the home sale trap is set.
The Connection Between a Home Sale and Medicare Premiums
You might be thinking, “Wait, I thought capital gains on a primary residence were tax-free?”
You’re partially right. The IRS allows for a “Section 121 Exclusion,” which lets individuals exclude up to $250,000 (or $500,000 for married couples filing jointly) of gain from the sale of their primary home, provided they’ve lived in it for at least two of the last five years.
In many parts of the country, that exclusion covers the entire profit. But if you are selling a home in a hot market like Austin, California, or Seattle to move to the peace of Wimberley, your profit might easily exceed that $500,000 mark: especially if you’ve owned the home for twenty or thirty years.
Any profit above that exclusion amount is considered taxable capital gains. And taxable capital gains are added to your Adjusted Gross Income, which creates your MAGI.
If that one-time windfall from your home sale pushes your income over the IRMAA thresholds (which start around $109,000 for singles and $218,000 for couples in 2026), your Medicare premiums could double or even triple for the year.
The Wimberley Math: A Real-Life Example
Let’s look at a hypothetical couple, Sarah and David. They sold their home in West Lake Hills for $1.5 million to retire to a beautiful $900,000 property near the Blue Hole in Wimberley.
- Original Purchase Price: $400,000
- Sale Price: $1,500,000
- Total Gain: $1,100,000
- IRS Exclusion (Joint): -$500,000
- Taxable Gain: $600,000
Even if Sarah and David have a relatively modest retirement income of $100,000 from Social Security and pensions, that $600,000 home-sale gain gets tacked on top. Their MAGI for that year is now $700,000.
Because of the two-year look-back, two years after they move into their quiet Wimberley retreat, they’ll receive a notice that their Medicare Part B premiums have jumped from the standard rate to the highest possible bracket. For a couple, this could mean paying thousands of dollars extra in premiums for that year alone.
Timing is Everything (The 2-Year Rule)
Because the move to Wimberley often happens right at the start of retirement, the timing of the home sale is critical.
If you sell the home while you are still working high-income years, you might already be in an IRMAA bracket. If you sell it the year you retire, you might accidentally create a “cliff” where your income is massive for one year, affecting your premiums exactly when you want to start preserving your nest egg.
This is why strategic wealth protection is so vital during the transition phase. You aren’t just managing investments; you are managing the timing of income to avoid these hidden tax “surprises.”
Can You Appeal an IRMAA Surcharge?
There is some good news. The Social Security Administration recognizes that “life happens.” They allow you to file an appeal (Form SSA-44) if you have experienced a Life-Changing Event (LCE).
Common LCEs include:
- Marriage or Divorce
- Death of a spouse
- Work stoppage or work reduction
- Loss of income-producing property (due to disaster)
- Loss of pension income
Note: Simply selling your home for a profit is not considered a Life-Changing Event on its own. However, if you sell your home in the same year you retire (a “work stoppage”), you may be able to appeal the IRMAA surcharge by proving that your future income will be significantly lower than the income reported on the tax return with the home sale.
Navigating this appeal process is something a professional retirement planner can help you coordinate, ensuring you have the right documentation to show Medicare that your “big income year” was a one-time event.
Strategies to Manage the Move
If you are planning to relocate to Wimberley soon, here are three things you should discuss with your advisor:
- Staggering Income: If you know a home sale will push you into a high IRMAA bracket, it might not be the best year to also do a large Roth conversion or take a massive discretionary withdrawal from your IRA.
- The “Work Stoppage” Appeal: If you are retiring and selling your home in the same window, make sure you are prepared to file the SSA-44 appeal immediately.
- Cost Basis Adjustments: Don’t forget to include every renovation, new roof, and kitchen remodel you did over the years in your home’s cost basis. The higher your basis, the lower your taxable gain, and the less likely you are to trip over an IRMAA threshold.
Why Wimberley is Still Worth It
Despite the complexities of Medicare surcharges and capital gains, retiring in Wimberley remains one of the best decisions you can make. The “Wimberley Way” is about a slower pace, a connection to nature, and a community that values the arts and the outdoors.
Whether you are spending your Saturdays at Wimberley Market Days or enjoying a glass of Hill Country wine on your new patio, the lifestyle here is worth the effort of a well-executed financial plan.
Managing IRMAA isn’t about avoiding the move; it’s about making sure that more of your money goes toward your new life in the Hill Country and less toward avoidable surcharges.
Ready to plan your Wimberley retirement without the surprises?
Schedule a call with a fiduciary financial advisor today: https://calendly.com/portafoliocapital/15min
Portafolio Capital Management dba Mau Sanchez Capital is a Registered Investment Adviser. This content is for informational purposes only and does not constitute investment advice or a solicitation to buy or sell any security. Advisory services are provided only pursuant to a written advisory agreement.
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