Stepped-up basis and inherited California real estate, explained.

Stepped-up basis is one of the more genuinely helpful concepts in real estate, and it's also one of the most misunderstood, especially when it gets tangled up with Proposition 19. Ratowsky Group at Compass hears about it most often when a family is sorting out a home that's been passed down, or when an heir is deciding whether to keep or sell it.

Here's the calm framing. Stepped-up basis is an income-tax idea. When you inherit real estate, your cost basis, the number you'll subtract from the sale price to figure out your taxable gain, generally resets to the home's fair market value as of the date of death. That reset is the step-up, and it can make a real difference if you sell. The rest of this page walks through how it works, the California community-property wrinkle, and why it's a completely separate track from Prop 19. None of this is tax or legal advice, and the rules turn on your specific facts, so a CPA or attorney is the right person to apply them.

Start with how gain normally works. When you sell a home, your taxable capital gain is roughly the sale price minus your basis, and basis usually starts with what you originally paid plus qualifying improvements. The lower your basis, the larger your taxable gain. That's the whole reason longtime owners with a low original purchase price can face a big gain on a sale.

Inheritance changes the starting point. When real estate passes to an heir, the basis generally steps up to the fair market value as of the date of death, instead of carrying over the original owner's lower purchase price. So if a parent bought a Huntington Beach home decades ago at a price that sounds made-up today, and it's worth far more now, the heir's basis generally becomes that current value, not the old one. If the heir sells soon after, the gain measured from the stepped-up basis can be small or close to nothing, because the basis and the sale price are close together. That's why the step-up matters so much, and why the timing and the date-of-death value are worth getting right with a professional.

California is a community-property state, and that opens up a wrinkle worth knowing about. In many states, when one spouse passes away, only that spouse's half of a jointly owned home gets a basis step-up. The surviving spouse's half keeps its old basis. But for property held as community property, California rules may allow a step-up on the full value, not just half, for the surviving spouse in some situations. People sometimes call this a double step-up.

If that applies, it can meaningfully reduce the taxable gain a surviving spouse would face on a later sale, because the entire basis, not just half, resets to the date-of-death value. The catch is that whether it applies depends on exactly how title is held and the specific facts, and the difference between community property, joint tenancy, and other forms of ownership is precisely the kind of detail that changes the answer. This is well past anything a web page should try to decide for you. It's a strong reason to have how your home is held reviewed by an estate attorney and a CPA, ideally before it matters rather than after.

This is the mix-up that comes up almost every time. People hear the word basis in two different conversations and assume they're the same thing. They're not. Stepped-up basis is an income-tax concept about capital gains when you sell. Proposition 19 is a property-tax rule about your assessed value, the number behind your annual property-tax bill.

They can both touch the same inherited home at the same time, which is exactly why they get blurred. An heir might benefit from a stepped-up basis on the income-tax side, while separately facing a reassessment of the property's tax base under Prop 19 if they don't make the home their primary residence. Two different tracks, two different outcomes, two different sets of professionals. Keeping them in separate boxes is half the battle. Ratowsky Group is not a tax or legal advisor, and we're glad to point you toward the right professional for the question you're actually asking.

If you've inherited a home, or expect to, the practical move is to understand the framework and then get your specific numbers from people who do this for a living. The fair market value as of the date of death is the anchor for the step-up, so establishing that value carefully matters, and a CPA or appraiser is the right resource for it. From there, decisions about whether and when to sell can be made with eyes open, rather than guessing.

Craig and Justin Ratowsky have worked with families navigating an inherited home, and the calm approach is always the same: there's no rush, get a realistic read on value, and loop in a CPA and an estate attorney before making decisions. The goal is no surprises, just a clear picture of what keeping or selling actually looks like, with the right professionals running your real numbers.