TL;DR

• Protecting the home from Medi-Cal is only half the job — a transfer done for Medi-Cal reasons can trigger a Proposition 19 property-tax reassessment and forfeit the step-up in basis.
• Under Prop 19, passing the home to a child no longer automatically keeps the low tax base; the child generally must make it their principal residence, meet the requirements, and even then the exclusion is capped.
• The step-up in basis can save heirs large amounts in capital-gains tax — but some transfers (like gifting the home during life) lose it.
• Good planning solves all three at once: Medi-Cal protection, property taxes, and income-tax basis.
• This is the intersection where general advice falls short and coordinated, California-specific planning pays off.

Why protecting the home is only half the job

Families focused on protecting the home from long-term care costs often solve that problem and accidentally create two others. A transfer made purely to address Medi-Cal can trigger a Proposition 19 property-tax reassessment that raises the annual tax bill sharply, and it can forfeit the step-up in cost basis that would have spared the children a large capital-gains tax. Protecting the home from Medi-Cal, in other words, is only one of three goals — and the three can pull against each other. The art of this planning is satisfying all three at once.

This is the part of the picture that purely benefits-focused advice tends to skip, and where a combined estate, real estate, and tax-coordinated approach matters most. Below is how the three pieces interact. 

Proposition 19 and the family home

Many California parents assume their low property-tax base passes automatically to their children along with the home. Since Proposition 19 took effect in 2021, that is generally no longer true. To keep a parent’s tax base on a transferred home, the child generally must make the home their principal residence, meet the filing and timing requirements, and even then the protected amount is capped — value above the cap is added to the taxable value. A home transferred to a child who will not live in it as a primary residence is generally reassessed to market value, which in much of California means a dramatically higher property-tax bill.

The consequences for Medi-Cal planning are direct. A transfer structured to protect the home from long-term care costs, but made without accounting for Prop 19, can hand the next generation a property-tax increase large enough to force a sale — defeating the goal of keeping the home in the family. The specific cap amount and the requirements are set by the state and adjusted on a schedule, so they should be confirmed at the time of any transfer. 

The step-up in basis

The second tax piece is the step-up in cost basis, and it is one of the most valuable benefits in the entire system. When heirs inherit appreciated property, the property’s tax basis is generally “stepped up” to its value at the date of death. If they later sell, capital-gains tax is calculated from that stepped-up value, not from what the parent originally paid — which on a long-held California home can erase hundreds of thousands of dollars of taxable gain. In a community-property situation, California’s rules can make this benefit even more powerful for a surviving spouse.

The trap is that some moves made to protect the home forfeit this benefit. Gifting the home to a child during life, for example, generally gives the child the parent’s original (carryover) basis instead of a stepped-up one — so when the child sells, they may owe capital-gains tax on decades of appreciation that inheritance would have erased. A plan that protects the home from Medi-Cal but loses the step-up can cost the family more in income tax than it saved.

Solving all three at once

The reason this is lawyer’s work, coordinated with a tax professional, is that the three goals have to be solved together rather than one at a time:

• A structure that removes the home from the countable estate for Medi-Cal purposes,
• without triggering a Proposition 19 reassessment, and
• while preserving the step-up in basis (and, where relevant, the home-sale capital-gains exclusion).

A well-designed plan can often achieve all three — for example, certain irrevocable trust structures are drafted with the goal of protecting the home for Medi-Cal while aiming to preserve the step-up, and transfers can sometimes be structured to fit within Prop 19’s rules. But “often” and “can be” are doing real work in those sentences: the right answer depends on the family’s facts, the home’s value, the timing, and the tax situation, and the wrong combination produces exactly the tax disaster this planning is meant to avoid. This is not a place for a one-size-fits-all form.

If you are thinking about protecting your home and want to be sure you are not trading a Medi-Cal win for a property-tax or capital-gains loss, this is precisely the intersection we help families navigate. For guidance on your specific situation, call (650) 668-8000 or schedule a consultation at baylegal.com/contact.

Frequently Asked Questions

Does transferring my home to my kids trigger a property-tax reassessment?

Often, yes, under Proposition 19. Since 2021, passing a home to a child generally does not automatically keep the parent’s low tax base. The child usually must make the home their principal residence and meet the requirements, and even then the protected amount is capped. A transfer to a child who will not live there is generally reassessed to market value. Confirm the current rules before any transfer.

What is the step-up in basis and why does it matter for my home?

When heirs inherit appreciated property, its tax basis is generally stepped up to the value at the date of death, so a later sale is taxed from that higher value rather than what the parent paid — often erasing large amounts of taxable gain on a long-held California home. Some lifetime transfers forfeit this benefit, which is why protecting the home should be coordinated with the tax consequences.

Can I protect my home from Medi-Cal without losing the step-up in basis?

Often, with careful planning. Certain irrevocable trust structures are designed to protect the home for Medi-Cal purposes while aiming to preserve the step-up. Whether it works depends on the drafting and your circumstances, and it should be coordinated with your tax professional, so this is a decision to make with an attorney rather than a template.

Will Proposition 19 force my children to sell the family home?

It can, if a transfer triggers reassessment to market value and the resulting property-tax bill is more than the children can carry. That is exactly why a Medi-Cal-driven transfer should account for Prop 19 — protecting the home from one threat while exposing it to another defeats the purpose. Planning that coordinates both is the way to avoid it.

Do I need a CPA or a lawyer for this?

Generally both, working together. The legal structure — trusts, deeds, transfers — is the lawyer’s work, while the tax calculations and filings are the tax professional’s. Because the Medi-Cal, property-tax, and income-tax pieces interact, coordinating the two is what produces a plan that protects the home without creating a tax problem.