2026-06-09 · 5 min read · Playa del Rey
Capital Gains and Taxes When Selling a Long-Held Home in Los Angeles

Why this move is different
The call I get most often from sellers who have owned their home for two or three decades goes something like this: I know I am going to owe a lot in taxes. Should I even sell?
Tax worry freezes more good decisions than almost anything I see in this business. So let me walk through what you actually need to understand. I am not your CPA. This is not tax advice. But you deserve to know the framework before you ever call an accountant.
Your profit is called a capital gain
When you sell a home for more than you paid for it, the difference is a capital gain. The IRS and the state of California both want a piece of it.
The number that matters is not the sale price. It is the difference between the sale price and your cost basis. Your basis starts at what you originally paid for the home, then rises with capital improvements you made over the years. A new roof, a kitchen remodel, an addition, structural work: these raise your basis and reduce your eventual taxable gain. Repairs and routine maintenance do not count.
Example: you bought in 1999 for $350,000 and put $120,000 in improvements into the home over the years. Your basis is $470,000. If you sell today for $1,400,000, your capital gain before any exclusions is $930,000. That is the number your accountant works from.
The federal exclusion most sellers underestimate
If you have owned the home and lived in it as your primary residence for at least two of the last five years, federal law allows you to exclude up to $250,000 in gain from federal income tax if you file as a single person, or up to $500,000 if you are married filing jointly. California follows the same exclusion for state income tax.
In the example above: a married couple excludes $500,000 from the $930,000 gain. That leaves $430,000 federally taxable. A single filer excludes $250,000 and owes tax on $680,000.
This exclusion resets. You can use it again on a future home, subject to conditions. Your CPA confirms whether you qualify and whether any exceptions apply to your situation.
Federal rates on long-term capital gains
If you have owned the home for more than one year, the gain is taxed at long-term capital gains rates, which are lower than ordinary income rates for most people. The specific rate depends on your total income for the year. Some higher-income sellers also owe an additional net investment income tax on a portion of the gain. Your accountant calculates your bracket and applies the right rates.
California taxes capital gains differently
California does not have a preferential rate for long-term capital gains the way the federal government does. The state taxes them as ordinary income.
For homeowners in higher California income brackets, the state tax adds significantly to the combined bill. That is not a reason to avoid selling. It is a reason to plan ahead with a CPA before you choose your closing date or structure the sale. Starting that conversation early keeps your options open.
Prop 19: a major tool for California homeowners 55 and older
California's Proposition 19, which took effect in April 2021, allows homeowners who are 55 or older to transfer their current property tax assessment to a replacement home anywhere in California. You can use this benefit up to three times in your lifetime, and the replacement home must be bought within two years of the sale. Confirm the details with your CPA.
This matters because many tenured Westside homeowners have been paying property taxes on a low assessed value for 20 or 30 years. Under Prop 19, when you sell and buy a replacement home in California, you do not automatically lose that low tax base. You carry it with you to the new property.
This one provision changes the financial math of selling for a lot of the people I work with. It is worth a full conversation with your CPA before you decide whether to move or stay. The full picture of selling a long-held home is here: selling a home you have lived in for decades.
What about an inherited home?
If you inherited the property rather than bought it yourself, your basis is generally set at the fair market value of the home on the date of the original owner's death. This is called a stepped-up basis.
If someone left you a home worth $900,000 when they passed, and you sell it today for $1,000,000, your taxable gain is $100,000, not the $650,000 the original owner had accumulated over decades.
This is one of the most commonly misunderstood pieces of real estate tax law I encounter. If you are selling an inherited home, start the accountant conversation well before you list. For more on the full process, read selling an inherited home in Los Angeles County.
What to track to establish the right basis
The longer you have owned a home, the easier it is to underestimate your basis because improvements from 15 years ago are easy to forget. Look for:
- Your original purchase settlement statement
- Contractor receipts and permits for major work
- Escrow statements from any prior refinance that documented improvements
- Home warranty records indicating major system replacements
A higher basis means lower taxable gain. Spending an afternoon reconstructing this before your CPA meeting is usually worth it.
Planning decisions you can make before closing
A few strategies are worth discussing with your accountant before the sale closes, not after.
Timing the close around the calendar year end can shift income between tax years. Closing December 31 versus January 2 lands the gain in a different year, which may matter depending on your other income.
An installment sale, where you carry back a small portion of the purchase price as a seller loan to the buyer, can spread taxable income over several years and potentially keep you in lower brackets.
If the home has been used partly or fully as a rental, different rules apply and the math changes materially. That conversation with your CPA needs to happen early.
None of these decisions happen at the closing table. They require planning months in advance. The earlier you start, the more options you have.
My take after seven years in real estate
Tax fear keeps more people in homes they were ready to leave than almost anything else I see. Sometimes the actual number is better than they feared. Sometimes a CPA finds a strategy that shifts the outcome. In almost every case, people who get the real number make better decisions than people who avoided the conversation entirely.
Get the numbers first. Then decide.
If you want to talk through what a sale might look like for your specific home, including what has sold nearby and how to think about the full financial picture, reach out for a consultation. No pressure, just real answers.
Where to start
Taxes are a planning question, not a reason to freeze. If you own a long-held home in Playa del Rey and want to see the real numbers, talk to me when you are ready. First Key Pacific moves at your pace, not a deadline's.
Common questions
- What is the capital gains exclusion for a primary residence in California?
- Federal law allows you to exclude up to $250,000 in capital gain from taxes if you file as a single person, or $500,000 if married filing jointly, provided you have owned and lived in the home as your primary residence for at least two of the last five years. California conforms to this federal exclusion, though the state taxes any remaining gain as ordinary income.
- Do I owe California taxes on the profit from my home sale?
- Yes, after applying the federal primary residence exclusion, any remaining taxable gain is subject to California income tax. California does not offer a preferential rate for long-term capital gains; the state taxes them as ordinary income, which can add significantly to the combined bill for higher earners. A CPA familiar with California real estate taxation can calculate your specific situation.
- How does Prop 19 affect my taxes when selling a long-held home?
- Proposition 19 does not directly reduce your capital gains tax. What it does is allow homeowners 55 and older to transfer their current low property tax assessment to a replacement home anywhere in California, up to three times in a lifetime, with the replacement bought within two years of the sale. If you have been paying taxes on a low assessed value for decades, Prop 19 means you can carry that advantage to your next home rather than having the new home reassessed at current market value. Confirm the details with your CPA.
- What counts as a capital improvement when calculating my cost basis?
- Capital improvements are permanent additions or changes that increase the value or useful life of the property. Examples include a kitchen or bathroom renovation, a room addition, new HVAC or roofing, a deck or pool, or other structural work. Routine repairs and maintenance, like painting or fixing a broken window, do not add to your basis. Keep receipts and permits for any significant work you have done.
- Does inheriting a home change my capital gains situation?
- Yes, significantly. When you inherit a property, your basis is generally reset to the fair market value at the time of the original owner's death, known as a stepped-up basis. This means you typically owe capital gains tax only on appreciation that occurred after you inherited the home, not the full amount the original owner had accumulated over their lifetime.