What Proposition 19 changed about property tax reassessment

Proposition 19, which took effect February 16, 2021, narrowed the circumstances under which you can transfer property to a family member without triggering a reassessment. Before Prop 19, you could pass real estate to a child or grandchild and the county assessor would not raise the assessed value — even if market value had climbed significantly. Prop 19 ended that blanket exemption for most transfers.

Under Prop 19, transfers to children and grandchildren now receive a reassessment exemption only if the property is your primary residence or agricultural land, and only up to $1 million in value. Any value above $1 million gets reassessed at current market value. Non-primary residences — rental properties, vacation homes, investment land — no longer may have access to for the family transfer exemption at all and will be reassessed when you transfer them.

The law also changed the rules for transfers between spouses and domestic partners, and created new reassessment triggers for certain transfers that previously avoided one. Understanding which properties you own and how you plan to transfer them is the first step in determining whether reassessment will affect you.

Key Takeaways

  • Prop 19 eliminated the family transfer exemption for non-primary residences, meaning rental properties and vacation homes will be reassessed when transferred to children or grandchildren.
  • Primary residences and agricultural land can still transfer to children or grandchildren without reassessment, but only up to $1 million in value; anything above that gets reassessed.
  • You cannot avoid reassessment by transferring property to a trust, corporation, or partnership if you retain control or beneficial interest in the property.
  • Reassessment happens based on the market value at the time of transfer, not the old assessed value, which can significantly increase your annual property tax bill.
  • Some transfers — between spouses, to disabled persons, for conservation purposes — still have exemptions, but the rules are specific and require documentation.

Why you cannot simply transfer property to avoid reassessment

Many property owners have tried to work around reassessment by transferring property into trusts, limited liability companies, or family partnerships, thinking that if the property itself does not change hands, the assessor cannot reassess. Prop 19 closed this loophole. The law now looks at whether you retain control or a beneficial interest in the property, not just the legal title.

If you create a trust and put rental property into it, but you remain the trustee or retain the right to income from the property, the assessor will treat that as a change in ownership and reassess. The same applies to transfers to LLCs or partnerships where you keep a stake. The county assessor has the authority to look past the legal structure and identify who actually controls and benefits from the property.

This means that restructuring ownership to avoid reassessment is not a practical strategy for most people. The assessor's job is to identify when real property changes hands in a meaningful way, and Prop 19 gave them clearer tools to do that.

Properties that still transfer without reassessment

Not all transfers trigger reassessment under Prop 19. Transfers between spouses or registered domestic partners remain exempt from reassessment, as long as the property is not later transferred to someone else. If you own a home with your spouse and one spouse passes it to the other, no reassessment occurs.

Transfers to disabled persons for purposes of providing care or support may also avoid reassessment in some cases, though the rules are narrow and require proof of the disability and the relationship. Transfers for conservation purposes — placing land into a conservation easement or transferring it to a nonprofit for open space — can avoid reassessment if the transfer meets specific legal requirements.

Transfers between co-owners who are splitting ownership (for example, one spouse buying out the other's share) may be partially exempt, but only for the portion of ownership that was already held by the person receiving it. The new portion acquired will be reassessed. These exemptions require documentation and often require you to file a claim with the county assessor within a specific timeframe.

How reassessment affects your property tax bill

When a property is reassessed, the county assessor determines its current market value. That value becomes the new assessed value, which is then multiplied by the local property tax rate (usually around 1 percent, plus local voter-approved bonds and assessments). The difference between the old assessed value and the new one can be substantial, especially if you have owned the property for many years.

For example, if you bought a rental house in 2005 for $400,000 and it is now worth $900,000, your old assessed value might be around $450,000 (adjusted annually by inflation, capped at 2 percent per year). When you transfer it to your child under Prop 19, the new assessed value becomes $900,000. At a 1.25 percent tax rate, that is a difference of roughly $5,625 per year in property taxes.

The reassessment takes effect on the date of transfer, and you will see the new tax bill in the next property tax bill cycle. There is no phase-in period; the full reassessed value applies immediately. If you are planning a transfer, you should calculate the tax impact before you proceed.

Documenting transfers to claim exemptions

If you believe your transfer qualifies for an exemption — such as a primary residence transfer to a child, or a transfer between spouses — you must file a claim with the county assessor. The assessor does not automatically know the nature of your transfer; you have to tell them and provide proof.

For a primary residence transfer to a child, you will need to document that the property was your principal place of residence at the time of transfer. This usually means providing a driver's license, voter registration, or utility bills showing your address at the property. You will also need to prove the relationship — a birth certificate or adoption papers for adult children.

For transfers between spouses, you need a marriage certificate or domestic partnership registration. For conservation transfers, you need the conservation easement document or the nonprofit's tax-exempt status letter. The county assessor's office can tell you exactly what documents they require; requirements vary slightly by county.

The deadline to file a claim is usually 60 days after the transfer is recorded with the county recorder, though some counties allow longer. If you miss the deadline, you lose the exemption and the property will be reassessed. It is worth filing the claim even if you are uncertain whether you may have access to; the assessor will review it and tell you if it does not meet the requirements.

When reassessment happens even without a transfer

Prop 19 also created new situations where reassessment occurs even if you do not transfer the property. If you own a primary residence and purchase a second home, that second home will be reassessed every eight years, rather than remaining at its old assessed value indefinitely. This applies only to properties you own for personal use, not investment properties.

Additionally, if you own property as a tenant in common with someone else and one of you buys out the other's share, the buyout triggers a reassessment of the entire property. Previously, this was sometimes treated as a partial transfer that did not trigger full reassessment. Now it does.

These rules are less commonly encountered than the family transfer rules, but they can affect you if you are planning to buy additional property or restructure ownership with a co-owner. Understanding when reassessment is triggered helps you plan the timing and structure of these transactions.

Frequently Asked Questions

Can I transfer my primary residence to my child without reassessment?

Yes, if the property is your primary residence and its value does not exceed $1 million. You must file a claim with the county assessor within 60 days of the transfer and provide proof that it was your principal residence — such as a driver's license or utility bills. If the home is worth more than $1 million, the value above $1 million will be reassessed.

What counts as a primary residence for Prop 19 purposes?

A primary residence is the property where you live most of the time and claim as your principal place of residence. You can have only one primary residence at a time. A vacation home, investment property, or home you own but do not live in does not count, even if you visit it regularly.

If I put my house in a trust before I transfer it to my child, does that avoid reassessment?

No. Prop 19 looks at whether you retain control or beneficial interest in the property, not just the legal title. If you create a trust, remain the trustee, and retain income from the property, the assessor will treat it as a change of ownership and reassess. The structure of the transfer does not matter; what matters is who controls and benefits from the property.

Can my spouse and I transfer property between ourselves without reassessment?

Yes. Transfers between spouses and registered domestic partners are exempt from reassessment under Prop 19. You will still need to file a claim with the county assessor and provide a marriage certificate or domestic partnership registration to document the relationship.

How much will my property taxes increase if my rental property is reassessed?

The increase depends on the difference between the old assessed value and the current market value, multiplied by your local property tax rate. If your old assessed value was $400,000 and the property is now worth $800,000, and your tax rate is 1.25 percent, the annual increase would be about $5,000. You can contact your county assessor's office to get an estimate based on your specific property.