If you’re a homeowner in California—or expect to inherit property from a parent—Proposition 19 could have a big impact on your family’s finances. Passed in November 2020 and fully effective as of February 16, 2021, Prop 19 changed the rules on how property tax works when a home is passed down from parent to child.

This article breaks down what Prop 19 is, how it affects inherited properties, and what you can do to prepare or protect your family home.

What Was the Law Before Prop 19?

Before Prop 19, parents (and grandparents, in limited cases) could transfer their primary residence to their children without any change in property tax—regardless of how the children used the home.

In addition to the primary residence, parents could also transfer up to $1 million of assessed value of other property (like a second home or a rental property) to their children with no property tax reassessment.

This meant if your parents bought a house in the 1980s and were paying $2,000 a year in property taxes, and the home was worth $1.5 million today, you could inherit the home and still pay $2,000 a year—even if you rented it out or left it vacant.

What Did Prop 19 Change?

Prop 19 narrowed these reassessment exclusions significantly. Here’s how:

1. Only a parent’s primary residence can be transferred without full reassessment.
2. The child must make the home their primary residence within one year.
3. There’s a $1 million cap on the benefit.

If the child does not move into the home and make it their primary residence, the property will be reassessed to market value, and property taxes will increase.

Even if the child moves in, the parent’s low property tax base only transfers up to $1 million of current market value. Any value above that gets reassessed.

Let’s walk through an example.

Example: Inheriting a Family Home Under Prop 19

Say your mom bought a house in 1985 for $200,000. Her property tax base is about $250,000 today, and she pays about $3,000 a year in property taxes. Today, that home is worth $1.8 million.

Scenario A: You keep the house, but don’t move in.

• The property is reassessed to $1.8 million.

• You now pay property taxes on $1.8 million, which could be $20,000+ a year.

• The old tax base is lost entirely.

Scenario B: You move in and make it your primary residence within 1 year.

• You get to keep $1 million of the value without reassessment.

• The remaining $800,000 gets added to the tax base.

• Your new assessed value is $250,000 + $800,000 = $1.05 million.

• Your new property tax is around $13,000/year, instead of $3,000.

• You still pay more, but it’s a big savings compared to full reassessment.

What About Other Properties Like Rentals or Vacation Homes?

Under Prop 19, there’s no longer any tax break when inheriting a non-primary residence.

So if your parents leave you a cabin in Tahoe or a rental property in Los Angeles, it will be fully reassessed to market value—regardless of how you use it.

This change can hit families hard, especially when multiple siblings inherit a property they can’t afford to keep due to rising property taxes.

Why Did This Law Pass?

Prop 19 was marketed as a way to help wildfire victims, seniors, and disabled homeowners move without losing their low property tax base. And it does offer expanded benefits for older or disabled homeowners who want to sell and move.

But to pay for that expansion, Prop 19 tightened the rules on inherited properties. The result is that many Californians will face much higher property tax bills when inheriting homes, especially if they don’t plan to live in them.

What You Can Do About It

Here are some strategies families are exploring to deal with Prop 19:

1. Plan Early With a Trust and Legal Advice

Estate planning attorneys can help you explore options like:

• Gifting strategies

• Restructuring ownership

• Creating LLCs for income properties

• Using irrevocable trusts

These tools may or may not avoid reassessment—but early planning gives you more options.

2. Decide If You’ll Keep or Sell

If you inherit property, you’ll need to decide:

• Can you afford the new property tax bill?

• Are you willing to live in the home?

• Do you want to sell and split proceeds with siblings?

Make sure to file the proper claim forms within the deadline to preserve any exclusion. Typically, this must be done within 3 years, but to avoid back taxes or penalties, filing within 1 year of the transfer is best.

3. Get Clear on the Property Tax Impact

Use the market value and current tax base to estimate what your new property taxes might be under Prop 19. That can inform your decision about keeping, selling, or renting.

The Bottom Line

California’s Prop 19 dramatically changed the landscape of property inheritance. It replaced generous tax breaks with stricter rules, higher taxes, and limited exemptions.

If your family has real estate, now is the time to:

• Understand how these rules apply to your situation,

• Think carefully about what you want to happen with the property,

• And take action—before the tax bill shows up.

The home your parents bought for $100,000 in 1990 might be worth $2 million now. But under Prop 19, it’s not just the market value that matters—it’s the tax strategy that determines whether you can afford to keep it in the family.