Scott Stollar is a REALTOR® (DRE #02136497) licensed since 2021, with 7 years of pre-license experience in San Diego real estate, focused on inherited and probate homes.
Prop 19 inherited home California rules boil down to one deadline: you can only keep a parent’s lower property tax base on an inherited home if you move in as your primary residence within one year of the transfer. If you don’t move in, the county reassesses the property at current fair market value, which in San Diego can mean a significant jump. You still keep the step-up in basis either way, which resets the home’s taxable value to its market value on the date of death.
When a parent’s home becomes your responsibility, the laws around taxes, Prop 19, inherited property, and capital gains can feel confusing. Navigating these rules can seem like a maze. California is one of the most beautiful places on earth, but our tax code is not exactly known for its simplicity.
And when grief, responsibility, and family expectations hit all at once, a clear answer becomes priceless. I wanted to provide that. So, I sat with San Diego tax advisor Amanda Bettencourt of Leiman & Associates. She specializes in inheritance-related tax planning. What follows is the California-specific guide families like yours wish they had on day one.
California’s Proposition 19, passed in November 2020, reshaped property taxes for inherited homes. The biggest shift?
You can only keep the lower property tax base if you move into the home as your primary residence within one year of transfer.
If you don’t move in, the county will reassess the property at current fair market value, which in San Diego can mean a significant jump.
Key Prop 19 rules for beneficiaries:
Reference:
California Board of Equalization – Prop 19 guidance
https://www.boe.ca.gov/prop19/
Yes, if you want the property tax benefit.
If you inherit a home, keep your loved one’s tax base, and later decide the property doesn’t truly fit your life… the moment you move out or convert it to a rental, you lose Prop 19 protection. The home is reassessed, and property taxes adjust upward.
But that doesn’t mean you lose all tax benefits. You still receive the step-up in basis.
A step-up in basis resets the home’s taxable value to its market value on the date of death.
This is one of the most powerful tax protections California beneficiaries have.
Example
If your grandmother bought a Carlsbad home for $50,000 in the 1970s and it’s now worth $1,000,000:
This is why selling soon after inheritance often leads to the cleanest tax outcomes.
Reference:
IRS Publication 551 – Basis of Assets
https://www.irs.gov/publications/p551
If you hold the home and the value climbs (from $1,000,000 to $1,150,000, for example), that $150,000 increase may be taxable.
The IRS generally recognizes the date of death value as the basis, and any appreciation after that may be treated as capital gain.
But you can offset gains with:
As Amanda shared: “Contractor receipts from 1968 aren’t realistic. But having basic documentation, like photos, titles of work done, and estimates, can help protect you if the IRS ever asks questions.”
Most California families have a revocable living trust, like The Smith Family Trust.
Good news:
Trust-owned properties can still qualify for Prop 19’s benefits.
But the successor trustee must file the correct exemption forms within one year of the transfer date. If timelines are missed, the county assessor is not generous in fixing mistakes.
This is where many beneficiaries unintentionally lose thousands.
If you move into the home to keep the Prop 19 tax base, and then later decide to rent it out:
For some San Diego homes, that can mean going from $2,000/year to $18,000+/year. So before renting an inherited home, run the numbers with a tax professional. Rental income doesn’t always offset the tax consequences.
Inherited real estate puts you at the intersection of:
No one expects you to be an expert. But the IRS and the County Assessor will still expect accuracy.
That’s why most families bring in a tax professional, a trust/probate attorney, and a real estate specialist who understands this niche, not just San Diego housing trends.
As Amanda put it: “The most important thing is that you go to a professional who has the experience to share all the information you need to avoid problems, minimize capital gains, and stay in good standing with the IRS.”
If you inherited a home in California and you’re trying to figure out:
You deserve answers, not confusion.
If your situation involves moving a family member into the home to keep this tax base, our multigenerational Prop 19 guide walks through that specific scenario. And if you decide to sell instead, capital gains on an inherited home in San Diego covers how the numbers work, or download the Inherited Home Playbook to compare your options.
Yes, under Prop 19 you can only keep the lower property tax base if you move into the home as your primary residence within one year of transfer. If you don’t move in, the county will reassess the property at current fair market value, which in San Diego can mean a significant jump.
A step-up in basis resets the home’s taxable value to its market value on the date of death. For example, if a home was bought for $50,000 in the 1970s and is worth $1,000,000 at inheritance, your basis becomes $1,000,000, not the original purchase price, which is why selling soon after inheritance often leads to the cleanest tax outcome.
No. If you move into the home to keep the Prop 19 tax base and later move out or convert it to a rental, you lose that protection at that point. This is where many beneficiaries unintentionally lose thousands, so it’s worth planning the timeline before deciding to rent it out.
How the step-up in basis works when you inherit a San Diego home, how to establish date-of-death value, and what changes if you rent it out first.
The 7 steps to sell a house held in a trust in California, from confirming title to closing escrow, plus the Heggstad petition fix for trusts.
