The house made sense when there were four of you in it. Now it is two people, or one, and a set of stairs you think about more than you used to. Somebody mows two-thirds of an acre every week that nobody walks on.
Almost every Dayton-area retiree we sit down with has thought about downsizing. Most of them are stuck on the same worry, and it is usually the wrong one.
The Question Behind the Question
The worry we hear most often sounds like this: we bought this place in 1991 for eighty-some thousand and it is worth three-forty now — are we going to get destroyed on taxes?
For the large majority of Miami Valley sellers, the answer is no. Not a little tax. Usually none at all. The federal rule on selling a main home is more generous than most people expect, and Dayton-area home values, welcome as their growth has been, rarely come close to testing it.
The thing that does cost people real money is a timing rule almost nobody knows about — and it tends to bite the families who are already having the hardest year. We will get to that. First, the good news.
The $250,000 / $500,000 Exclusion
When you sell your main home at a gain, the IRS lets you exclude a large chunk of that gain from your income entirely:
- Up to $250,000 of gain if you file single.
- Up to $500,000 of gain if you file a joint return with your spouse.
Excluded means excluded. It is not deferred, and you do not have to buy another house to get it. That last part is a leftover from an older rule that was replaced years ago, and we still meet people who believe they have to roll the money into a new home to avoid tax. You do not.
To qualify you have to pass two tests, both measured against the five-year period ending on the date you sell:
- Ownership test — you owned the home for at least 24 months out of those 5 years.
- Use test — you lived in it as your residence for at least 24 months out of those 5 years.
The 24 months do not have to be consecutive, and the ownership and use periods do not have to be the same two years — but both tests have to be satisfied inside that same five-year window. On a joint return, either spouse can satisfy the ownership test, but both spouses have to meet the use test individually.
One more limit: you generally cannot use the exclusion if you already excluded gain on the sale of another home during the two years before this sale.
A Kettering Example, With Real Numbers
Say Jim and Carol bought their Kettering split-level in 1992 for $88,000. Over thirty-four years they put on a new roof, redid the kitchen, added a bathroom, and replaced the furnace and windows — $45,000 in improvements, and they kept the receipts. They sell in 2026 for $340,000 and pay $24,000 in commission and closing costs.
The math:
- Adjusted basis: $88,000 purchase + $45,000 improvements = $133,000
- Amount realized: $340,000 sale price − $24,000 selling costs = $316,000
- Gain: $316,000 − $133,000 = $183,000
Their joint exclusion is $500,000. The gain is $183,000. The entire thing is excluded, and they owe nothing in federal capital gains tax on the sale.
Now suppose Carol had passed away and Jim sold as a single filer. His exclusion drops to $250,000 — still comfortably above a $183,000 gain. He is fine too.
Notice what those improvement receipts did. Without the $45,000 in documented improvements, the gain would have been $228,000 instead of $183,000. In this example it does not change the tax bill, because both numbers fit under the exclusion. But if the sale price had been much higher, or if a surviving spouse were selling alone years later, that folder of receipts is the difference between a clean return and a real bill. Keep it.
Two reporting notes. If you receive a Form 1099-S from the closing, you must report the sale on your return even if every dollar of gain is excluded. And a loss on the sale of a personal residence is not deductible — that surprises people who sold in a soft year.
The Trap That Actually Costs People
Here is the one to watch, and it has nothing to do with how much your house appreciated.
The use test requires 24 months of living in the home within the 5 years ending on the sale date. Picture a widow in Huber Heights who moves in with her daughter in 2026 because the stairs became unsafe. The family does not sell the house right away — there is furniture to sort, siblings to consult, nobody wants to rush. It sits. In 2032 they finally list it.
By then she has not lived in that house for six years. She fails the use test. The exclusion that would have wiped out her entire gain is gone, and the tax bill on a house she owned for forty years is now very real.
This is the most expensive procrastination in retirement, and it happens quietly, to people who are grieving or exhausted or simply being careful. If you or a parent has moved out of a long-time home, put a date on the calendar. The clock is running.
There is an important exception, and it is worth knowing before you assume the worst. If you become physically or mentally unable to care for yourself, and you used the home as your main home for at least 12 months during the 5 years before the sale, then time spent in a care facility counts toward the 2-year use requirement — as long as that facility is licensed by a state or other political entity to care for people with your condition.
That is a meaningful safety net for a move into a licensed assisted living or nursing facility. It is not a safety net for moving in with family, or into an independent living apartment that is not licensed for care. If a parent has moved, find out exactly what kind of facility it is before anyone assumes there is no rush.
A Special Rule for Wright-Patterson Families
If you or your spouse served on qualified official extended duty in the uniformed services, the Foreign Service, or the intelligence community, you may elect to suspend the five-year test period for up to 10 years.
You are on qualified official extended duty if, for more than 90 days or for an indefinite period, you were stationed at a duty station at least 50 miles from your main home, or living under government orders in government housing.
In a community shaped by Wright-Patterson, this matters. A career that included long assignments elsewhere can leave someone looking like they failed the use test on a Fairborn or Beavercreek house they always considered home. The suspension election can fix that. If this describes your service history, do not read the two-year rule and conclude you are out of luck — bring it to a tax professional.
Your Ohio Homestead Exemption
If you have been receiving Ohio’s Homestead Exemption on your current house, understand that it does not follow you automatically.
The exemption applies to the dwelling you own and occupy as your principal place of residence on January 1 of the year you are applying for. Move to a new home, and you file a new application — form DTE 105A — with the auditor in the county where the new home sits. If you are moving from Montgomery County to Greene County, that is a different auditor’s office. Real property applications are due by December 31 of the year the exemption is sought.
A few eligibility points that come up when people move: you must be at least 65 by December 31 of the year you are seeking the exemption, or qualify as permanently and totally disabled, or as a surviving spouse who was at least 59 when your spouse died. Property owned by a corporation, partnership, or LLC does not qualify. And unless you already qualified back in 2013, there is an income test based on modified adjusted gross income.
The exemption amount and income limit are adjusted over time, so rather than quote a number that may have shifted, call your county auditor — Greene, Montgomery, Miami, or Clark — and ask for the current figures. They answer this question constantly.
The practical warning: people downsize in the spring, get busy, and forget to reapply. That is a full year of property tax relief left on the table for a form that takes ten minutes.
Moving Can Shake Up Your Medicare
This one catches people who move even a short distance. If you are in a Medicare Advantage plan or a Medicare drug plan and you move to an address outside your plan’s service area, you get a Special Enrollment Period to switch plans or return to Original Medicare.
The timing is specific:
- If you tell your plan before you move — your window opens the month before the month you move and runs for 2 full months after the move.
- If you tell them after — the window starts when you move and runs 2 full months after.
Telling them first buys you an extra month. If you let the window close without choosing a new plan, you will be dropped from the old Medicare Advantage plan and enrolled in Original Medicare — possibly without drug coverage, and possibly without the supplement you would have wanted alongside it.
Even a move inside the Miami Valley can cross a county line, and Medicare Advantage service areas are drawn county by county. Kettering to a condo in Xenia is a short drive and a real change in plan availability. Check before you sign anything.
Before You Call a Realtor
Four things, in this order:
Find the receipts. Every capital improvement since the day you bought raises your basis and lowers your gain. Roof, additions, HVAC, windows, finished basement. Repairs do not count, improvements do.
Check your two-year window. Especially if you or a parent has already moved out. This is the one with a deadline attached.
Look at the new address on a Medicare plan finder before you commit to it, so the plan question is settled while you still have choices.
Put the homestead reapplication on your calendar for the year after you move.
Downsizing is rarely only a financial decision, and we would not pretend otherwise. But the financial part should not be the part that surprises you. If you are thinking about selling in the next year or two and want to walk through how it touches your income plan, your taxes, and your Medicare coverage, we are in Beavercreek and happy to sit down with you. The consultation is free and there is nothing to sign. Call us or reach out through medretiregroup.com.
This article is general educational information, not individualized tax, insurance, or investment advice. Rules and figures change and individual circumstances vary — please confirm details with your plan, or speak with a qualified professional, before acting.
Official Sources
- IRS — Topic no. 701, Sale of your home
- IRS — Publication 523, Selling Your Home
- IRS — About Form 1099-S, Proceeds From Real Estate Transactions
- Ohio Department of Taxation — Form DTE 105A, Homestead Exemption Application
- Medicare.gov — Special Enrollment Periods
Figures verified against these sources on September 7, 2026.
