Did the 2025 tax law change how you sell a family home?

Every few years, a tax bill makes headlines and families ask the same worried question about the family home: did they change the rules on us? It is a fair question, because the home is both the largest asset most families hold and the most emotional one. The honest answer, after careful review of the 2025 law, is gentler than the headlines: the core protections are intact, and for California seniors the situation is even more favorable than many realize.

What the 2025 tax law did, and did not, change

The One Big Beautiful Bill Act, signed into federal law on July 4, 2025, generated plenty of discussion about the home sale exclusion. As H&R Block and the Tax Foundation document, the enacted law left the exclusion untouched. For sales in 2026, the rule is unchanged: up to $250,000 of gain is excluded for a single filer, and up to $500,000 for married couples filing jointly.

For most senior sellers this is excellent news. The gain on a long-held primary residence usually falls comfortably inside the exclusion, which is why selling a family home is typically far more tax-friendly than families fear.

The two-of-five-year rule, in plain language

To use the exclusion, you must have owned the home and used it as your principal residence for at least 24 months total during the five years ending on the sale date. The two years do not need to be continuous, and they do not need to be the final two years before the sale.

A couple who has lived in the same house for thirty years has met this test many times over. The rule mostly matters when a home served as a second residence or rental, or when a sale follows shortly after purchase. In either case, a tax adviser can help with the timing, including partial exclusions for health-driven moves.

When a parent has passed: stepped-up basis

Inherited homes follow a different, often kindlier set of rules. Under the stepped-up basis rule, the home's tax basis is reset to its fair market value on the date of death, rather than the price paid decades ago. When heirs or a trustee sell soon after, the taxable gain is usually small, and often zero.

There is one catch worth naming gently: the home sale exclusion generally does not apply to heirs, because it requires living in the home two of the past five years. That is exactly why the stepped-up basis matters so much. Our inherited property tax guide brings the federal and California rules together in one place.

"Taxes are rarely the reason a family sells, but understanding them calmly lifts a heavy layer of worry."

California's Prop 19: the benefit seniors often miss

On the state side, California homeowners 55 and older can transfer the assessed value of their current home to a replacement principal residence anywhere in California, up to three times in a lifetime. When the replacement home is of equal or lesser value, the full base year value transfers, which means the property tax bill does not jump to today's market level. For a family downsizing from a large home to a smaller one, the savings can be substantial.

Timing is the part to plan around. The sale and the purchase generally must happen within two years of each other, and the claim (form BOE-19-B) is filed with the county assessor of the replacement property, usually within three years of the purchase. An experienced adviser can confirm your family's specific dates.

A gentle plan for the family

• Gather the ownership record. The deed, purchase documents, closing statements, and improvement records, in one folder before you list.
• Run the numbers with a tax adviser before escrow opens. An accountant applies the exclusion and the basis to your exact dates.
• Keep the sale and the move on one calendar. The two-year Prop 19 window works best when selling, sorting, and purchasing are planned together.
• Ask about the survivor's rule. A surviving spouse may still claim the full exclusion on a home sold within two years of their spouse's passing, when the ownership and use tests were met and the exclusion was not used on another home in the prior two years.

Every family's situation is different, and we are not tax advisers. What we do well is keep the pieces moving on one timeline: our home sales team prepares, prices, and markets the family home while the sorting and packing plan flows around it, and we bring your tax adviser into the conversation before the listing goes live.

If you have been quietly wondering what selling, downsizing, or inheriting the family home would mean for your family in 2026, you do not have to sort it out alone. A free, private conversation with a senior transitions specialist is a gentle place to start, with no obligation and no pressure at all.