Selling a primary residence can still shelter up to $250,000 of profit from tax, or $500,000 for a married couple filing jointly, exactly as the exclusion has read since Congress wrote it into the tax code nearly three decades ago, in 1997. What has changed is everything around that number. Home prices in most of the country have climbed for years, so a cap that once covered almost any ordinary sale now leaves a growing share of longtime owners, especially in high-appreciation markets, owing capital gains tax on part of the profit when they finally sell a home they may have purchased decades earlier for a fraction of its current value.
A 1997 Law Set the $250,000 and $500,000 Caps, and Congress Never Indexed Them
The exclusion traces to the Taxpayer Relief Act of 1997, which replaced two older and more complicated rules: an unlimited rollover that deferred tax when a seller bought a similarly priced new home, and a one-time $125,000 exclusion available only to sellers who had reached age 55. In their place, Congress wrote a flat $250,000 exclusion for an individual seller and $500,000 for a married couple filing a joint return, according to the current text of the federal tax code. There is no age requirement and no once-in-a-lifetime limit under the new structure; a homeowner can use the exclusion repeatedly over a lifetime, spaced out over time. But unlike many tax figures that rise with inflation each year, this cap was written as a flat dollar amount and has never been adjusted since the law took effect for sales after May 6, 1997, even as home values in most of the country have moved a great deal since then.
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Qualifying Requires Passing an Ownership Test and a Use Test
The exclusion is not automatic on every home sale. A seller has to have owned and used the property as a main home for at least two of the five years leading up to the sale, according to the IRS’s guidance on the exclusion, known as the ownership and use tests. A married couple filing jointly can claim the full $500,000 only if at least one spouse meets the ownership test and both spouses meet the use test individually; couples who do not meet both conditions fall back to a lower combined limit based on each spouse’s own eligibility. The exclusion also generally cannot be claimed twice within a two-year span, so a seller who already excluded gain on a different home sale in the prior two years typically has to wait before using it again on a second property. A seller who has kept records of major home improvements has a separate way to soften the cap’s bite, since documented capital improvements add to the home’s basis and reduce the taxable gain before the exclusion is even applied.
A Widowed Seller Can Lose Half the Exclusion Within Two Years
One of the sharpest edges in the frozen cap shows up after a spouse dies. Under the federal tax code, an unmarried surviving spouse can still claim the full $500,000 exclusion, rather than dropping straight to $250,000, but only if the home is sold within two years of the spouse’s death and the couple would have met the joint ownership and use requirements immediately before that death. Once that two-year window closes, a surviving spouse selling the same home as a single filer is limited to the $250,000 cap, even though the home’s value has not changed at all. For a widow or widower in a home that has appreciated significantly since it was purchased, that timing alone can determine whether the eventual sale triggers a real tax bill or none, which makes the two-year clock one of the more consequential deadlines in the entire tax code for an older seller.
Sellers Who Exceed the Cap Still Have to Report the Sale
A seller whose profit is fully covered by the exclusion generally owes nothing extra, but reporting obligations do not disappear just because the gain is tax-free. The IRS requires a seller who receives Form 1099-S, Proceeds From Real Estate Transactions, to report the sale even when the entire gain is excludable, and anyone who cannot exclude the full gain must report the sale on Schedule D and Form 8949. The taxable portion above the exclusion is treated as a capital gain, taxed at long-term capital gains rates for a home owned more than a year, which can still be meaningfully lower than ordinary income tax rates even after the exclusion runs out. A seller approaching the cap, particularly one who has owned a home for decades in a market where values have risen sharply, has real reason to calculate the actual gain well before closing rather than assuming the sale will be entirely tax-free.
This article was produced with the assistance of AI and reviewed by The Financial Wire editorial team.
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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.
