The federal capital gains exclusion is one of the more valuable tax benefits available to a home seller, but it’s also one of the most assumed and least verified, especially for LA homeowners sitting on decades of appreciation.
What the Exclusion Actually Covers
Under IRC Section 121, a single filer can generally exclude up to $250,000 of capital gain on the sale of a primary residence from federal taxes, and a married couple filing jointly can generally exclude up to $500,000. This applies to the gain itself, meaning the difference between your adjusted cost basis and your sale price, not to the full sale price of the home.
The Ownership and Use Tests You Need to Meet
To qualify, you typically need to have owned and lived in the home as your primary residence for at least 2 of the last 5 years before the sale. There are some exceptions that allow a partial exclusion in specific circumstances, such as a job change, a health issue, or another unforeseen event, though the details of these exceptions depend on your situation and are worth confirming with a tax professional rather than assuming you qualify.
This Is for a Primary Residence, Not an Investment Property
This exclusion applies to a primary residence, not an investment property or a vacation home. If you’re selling a rental or investment property instead, a 1031 exchange is the relevant mechanism, and it works by deferring gain into a replacement property rather than excluding it outright. Our California real estate law guide covers how a 1031 exchange works and who it’s actually for.
Why This Matters More in LA Given High Values and Long Hold Times
An LA homeowner who’s owned for decades may have appreciated well beyond the $250,000 or $500,000 exclusion amount, meaning some of the gain could still be taxable even after the exclusion applies. This isn’t automatically a “no tax owed” situation for every seller. It depends entirely on your actual gain relative to the exclusion limit, and given how much LA home values have moved over a long hold, that gap can be significant.
Your Cost Basis Is Not Just What You Paid
The gain that gets measured against the exclusion is your sale price minus your adjusted cost basis, and your basis is not simply your original purchase price. It generally includes the purchase price plus the cost of capital improvements made over the years, a new roof, a room addition, a kitchen remodel, adjusted for certain items along the way. Keeping records of major improvements over decades of ownership can meaningfully raise your basis and lower your taxable gain, so pulling together receipts and permits before you list is worth the effort, especially for a long-held property where the paper trail has scattered over the years.
California Doesn’t Have a Matching State Exclusion
California doesn’t have its own separate home-sale exclusion at the state level matching the federal one. State capital gains tax treatment is a separate question, and it’s worth asking a tax professional about specifically rather than assuming the federal exclusion takes care of everything.
Talk to a Tax Professional Before You List, Not at Closing
If you own a highly appreciated home in LA, talk to a CPA or tax advisor well before you list, not at closing. There can be planning strategies worth exploring ahead of a sale, and those options shrink or disappear once you’re already under contract.
If you want help understanding what a sale might actually net you before you list, get in touch and Efrat can walk through the numbers with you alongside your tax advisor.
