The home sale capital gains exclusion is one of the biggest tax breaks available to homeowners, and in California, where many people have owned their homes for decades and watched values climb, it matters a lot. If you qualify, you may be able to exclude a large part of your profit from federal income tax when you sell your main home.

We’ve been buying houses in California since 2003, and taxes come up in almost every conversation with sellers. We’re not CPAs or tax attorneys, and this is general information, not tax advice. Please run your numbers with a tax professional before you sell. Here’s a plain-English overview so you know what to ask.

How the Home Sale Capital Gains Exclusion Works

Under federal law, if you sell your main home and meet the requirements, you can generally exclude:

• Up to $250,000 of gain if you’re single
• Up to $500,000 of gain if you’re married filing jointly

“Gain” isn’t the same as the sale price. It’s roughly your sale price, minus your selling costs, minus your adjusted basis (what you paid for the home plus the cost of qualifying improvements over the years). The IRS explains the basics in Topic 701, Sale of Your Home and in more detail in Publication 523.

Do You Qualify? The 2-out-of-5-Year Test

To claim the full exclusion, you generally need to pass two tests during the five years before the sale:

1. Ownership test: you owned the home for at least 2 years.
2. Use test: you lived in it as your main home for at least 2 years.

The two years don’t have to be in a row. You also generally can’t have used the exclusion on another home sale in the two years before this one.

For married couples to get the full $500,000, generally either spouse can meet the ownership test, but both need to meet the use test, and neither can have used the exclusion in the prior two years.

What if you don’t meet the full test?

You may still qualify for a partial exclusion if you sold because of a job change, a health reason, or certain unforeseen circumstances. A tax professional can tell you whether your situation fits.

What About California State Taxes?

California generally follows the federal home sale exclusion, so the same gain you exclude federally is usually excluded for state purposes too. The difference is what happens to gain above the exclusion: California doesn’t have a special lower rate for capital gains, so any taxable gain is generally taxed as regular income at your state rate.

There’s also California real estate withholding. When you sell California property, escrow may be required to withhold a percentage of the sale price for state taxes unless an exemption applies. Selling your principal residence and qualifying for the exclusion is one of the common exemptions, which is claimed on FTB Form 593. Your escrow officer will walk you through it.

Common Situations and Traps

Long-time owners in high-value areas

If you bought decades ago, your gain may be larger than the exclusion even after improvements. Keep receipts for major improvements (a new roof, an addition, a remodel), because they can raise your basis and lower your taxable gain. Routine repairs usually don’t count.

Rentals and home offices

If part of the time you rented the house out, or claimed depreciation for a home office or rental, part of the gain may not qualify for the exclusion, and depreciation you claimed may be taxed. Rules for “nonqualified use” can also reduce the exclusion for time the home wasn’t your main residence.

Divorce

Divorce can change who qualifies and for how much, depending on when you sell and who lived in the home. Our guide to selling a house during divorce in California covers the other parts of that process.

Surviving spouses

A surviving spouse may still be able to claim up to $500,000 if the home is sold within two years of the spouse’s death and other conditions are met. Ask a tax professional before you list.

Inherited homes are different

If you inherited the house, the exclusion usually isn’t the main rule that helps. Instead, an inherited home’s tax basis generally steps up to its value at the date of death. Our article on the tax consequences of selling an inherited house explains that rule.

Selling Costs Can Lower Your Gain

Many of the costs of selling, like commissions, escrow and title fees, and transfer taxes, can generally reduce the amount realized from the sale, which lowers your gain. Our guide to seller closing costs in California breaks down what those usually are. Keep your final closing statement for your tax records.

When a Quick Cash Sale Isn’t the Best Option

Taxes are one more reason not to rush if you don’t have to. If you’re a few months short of meeting the 2-year test, waiting until you qualify could save you a significant amount, and that may matter more than a fast closing. A cash sale tends to make the most sense when the house needs work, you’re facing a deadline, or the costs of holding and listing the home would eat into your proceeds. Talk to your tax professional about timing first, then compare your options.

Frequently Asked Questions

Know Your Numbers Before You Sell

If you’re thinking about selling and want a clear number to bring to your tax professional, we’re happy to give you an honest, no-obligation cash offer. You can compare it with listing and decide on timing with all the facts. Call Lawrence at (510) 824-8710 or fill out the form below.