Over-55 Home Sale Exemption: Rules, Gains, and Medicare Impact

The over-55 home sale exemption no longer exists. Congress repealed the one-time $125,000 age-based exclusion in 1997 and replaced it with a residency-based rule under Internal Revenue Code Section 121 that applies to homeowners of any age. Under the current law, you can exclude up to $250,000 of gain from the sale of a principal residence, or up to $500,000 if you’re married and filing jointly, and you can use the exclusion repeatedly rather than just once. Several pieces of Section 121, though, matter far more to older sellers than to anyone else, and missing them can cost tens of thousands of dollars.

How the Current Exclusion Works

Section 121 uses a residency test instead of an age test. To claim the full exclusion, you must have owned the home and lived in it as your principal residence for at least two of the five years before the sale.¹ The 24 months don’t have to be consecutive. You could live in the home 14 months, move away for a year, come back for 10 months, and still qualify as long as all of that falls within the five-year window. Vacations and short seasonal absences still count as time in the home.

The exclusion is $250,000 for a single filer and $500,000 for a married couple filing jointly.¹ For the joint amount, both spouses must meet the use test, though only one needs to meet the ownership test. You also can’t claim the exclusion more than once every two years.

Special Rules for Surviving Spouses

This is the single biggest thing an older homeowner can miss. When a spouse dies, the survivor can still claim the full $500,000 exclusion, but only if the home sells within two years of the date of death. The surviving spouse must be unmarried at the time of the sale, and the couple must have met the standard ownership and use tests immediately before the death.¹ Sell after the two-year window closes, and the exclusion drops to $250,000.

The deceased spouse’s ownership and use periods carry over to the survivor, so the surviving spouse does not need to satisfy those tests independently.¹ If the couple owned the home together for 20 years, the survivor gets credit for all 20.

A separate rule works alongside the exclusion. When a spouse dies, the surviving spouse’s basis in the deceased spouse’s share of the home resets to fair market value at the date of death.² In community property states, the entire home may receive a full step-up. In common law states, typically only the deceased spouse’s half gets the adjustment. Either way, the step-up often reduces the taxable gain so dramatically that the exclusion covers whatever’s left.

If your spouse recently passed and you’re thinking about selling the family home, the two-year clock is already running. Waiting past it doesn’t just shrink your exclusion; it can create a tax bill that didn’t need to exist.

Moving Into a Nursing Home or Assisted Living

The standard use test is relaxed for homeowners who move into a care facility. If you become physically or mentally unable to care for yourself, you only need to have lived in the home for one year (rather than two) during the five-year period before the sale. Any time you spend in a state-licensed care facility while you still own the home counts as though you were living in it.¹

This provision addresses a common situation: an older homeowner moves to a facility, the house sits empty for a few years, and by the time it sells, the standard use test would fail. The facility must be licensed by the state, which covers most nursing homes and many assisted living communities.

Selling Before You Meet the Two-Year Test

You may still qualify for a partial exclusion if you sell early because of a health issue, a job change, or certain unforeseen circumstances.¹ The partial amount is calculated by multiplying the full exclusion by the fraction of the two-year requirement you completed. A single filer who lived in the home for 12 months before a qualifying health-related move would be eligible for roughly $125,000 instead of $250,000.

Treasury regulations list specific safe harbors for unforeseen circumstances:³

Condemnation or destruction of the home
Natural disasters or acts of terrorism causing damage to the residence
Death of a resident or co-owner
Job loss qualifying for unemployment compensation
Inability to afford housing costs after an employment or self-employment change
Divorce or legal separation
Multiple births from the same pregnancy

For older homeowners, the health trigger is the most common path. A doctor-recommended move to a different climate, closer to a medical center, or into a relative’s home for caregiving all fall under this category.

Calculating Your Gain

Your taxable gain is the sale price minus your adjusted basis and selling expenses. Adjusted basis starts with what you paid for the home and increases with qualifying improvements you’ve made over the years. An improvement adds value, extends the home’s useful life, or adapts it to a new purpose; routine maintenance that just keeps things functional doesn’t count.⁴ Additions, a new roof, updated wiring, central air, kitchen remodels, landscaping, and a new driveway all raise basis. Painting, patching, and fixing leaks don’t, unless they’re part of a larger remodeling project, in which case the whole job counts as an improvement.

Every dollar you add to basis is a dollar less of taxable gain, so hold on to receipts for major work going back as far as you can.

If You Ever Used the Home for Business or Rental

Two rules can carve into your exclusion. Depreciation you claimed after May 6, 1997 (for a home office, rental period, or business use) cannot be excluded; it gets recaptured and taxed at a maximum rate of 25%. Separately, if the home was used for something other than your principal residence during any part of your ownership after 2008, a portion of the gain is allocated to “non-qualified use” and cannot be excluded.¹ Time after you stop using the home as your residence doesn’t count against you, so renting the house for a couple of years right before selling doesn’t create non-qualified use. Buying a rental and later converting it to a primary residence does.

What You Owe on Gain Above the Exclusion

Anything above your exclusion amount is taxed as a long-term capital gain if you owned the home for more than a year. The federal rate is 0%, 15%, or 20% depending on your overall taxable income.⁵ Retirees with modest income should note the 0% bracket: if your taxable income including the gain stays below roughly $49,450 (single) or $98,900 (married filing jointly) in 2026, you may owe nothing on the excess. Most filers land at 15%. The 20% rate applies only at very high income levels.

There’s also a 3.8% Net Investment Income Tax that catches many sellers off guard. It applies when modified adjusted gross income exceeds $200,000 for a single filer or $250,000 for a married couple filing jointly.⁶ Those thresholds are not indexed for inflation and have not changed since 2013. The 3.8% applies to the lesser of your net investment income or the amount your MAGI exceeds the threshold. A large gain, even after the exclusion, can push you past those numbers for one year.

The Medicare Premium Hit Most Sellers Don’t See

Medicare Part B premiums are based on your modified adjusted gross income from two years earlier. A large home sale gain in 2024 sets your 2026 premiums. Any gain above your Section 121 exclusion is added to MAGI and can push you into a higher premium bracket under the Income-Related Monthly Adjustment Amount (IRMAA).

For 2026, the standard Part B premium is $202.90 per month. Surcharges start when MAGI exceeds $109,000 for a single filer or $218,000 for a married couple filing jointly:⁷

$109,001–$137,000 single / $218,001–$274,000 joint: $284.10 per month
$137,001–$171,000 single / $274,001–$342,000 joint: $405.80 per month
$171,001–$205,000 single / $342,001–$410,000 joint: $527.50 per month
$205,001–$499,999 single / $410,001–$749,999 joint: $649.20 per month
$500,000+ single / $750,000+ joint: $689.90 per month

The surcharges apply per person, so a married couple who both have Part B can face double the hit. The spike lasts only the year affected by the elevated income. If the sale is tied to a life-changing event such as the loss of income-producing property, you can request a premium adjustment by filing Form SSA-44 with the Social Security Administration.

Reporting the Sale

If you exclude your entire gain and did not receive a Form 1099-S from the closing agent, you don’t need to report the sale on your tax return at all.⁸ You must report the sale if you received a Form 1099-S or if you can’t exclude all of your gain.⁹ Form 1099-S reports the gross proceeds to both you and the IRS, so the agency already knows the sale happened. When reporting is required, use Form 8949 to record the transaction and carry the results to Schedule D of your Form 1040. If the exclusion applies, enter it as an adjustment against the gain.

Ignoring a 1099-S is a reliable way to generate an automated IRS notice. Keep your closing statement, purchase records, and improvement receipts for at least three years after filing the return that reports the sale.

State Property Tax Programs for Seniors

The federal age-based break is gone, but many states still run programs specifically for homeowners over 55. The most valuable are property tax basis transfer programs, which let eligible seniors carry their current assessed value to a new home. Without them, downsizing or relocating can trigger reassessment at current market value and sharply raise annual property taxes even when the new home costs less.

Eligibility varies. Some states limit transfers to homes of equal or lesser value, some allow statewide transfers, and some restrict transfers to the same county. Most require an application with the local assessor within a set window after buying the replacement home. These benefits are separate from the federal exclusion and are claimed through your local jurisdiction.

1
Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence
2
Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent
3
eCFR. 26 CFR 1.121-3 – Reduced Maximum Exclusion for Taxpayers Failing to Meet Certain Requirements
4
Internal Revenue Service. Publication 523, Selling Your Home
5
Internal Revenue Service. Topic No. 409, Capital Gains and Losses
6
Office of the Law Revision Counsel. 26 USC 1411 – Imposition of Tax
7
Centers for Medicare and Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles
8
Internal Revenue Service. Important Tax Reminders for People Selling a Home
9
Internal Revenue Service. Topic No. 701, Sale of Your Home