Prop 19 Trust Loans for Sibling Buyouts

When siblings inherit a California family home and one wants to keep it while the others want their share in cash, a trust loan is typically the only financing vehicle that preserves the parents’ low Proposition 13 property tax base with Proposition 19. Without it, the buyout often triggers a reassessment and the retaining sibling inherits a property tax bill that can be several times higher than what the parents paid. North Coast Financial originates trust loans throughout California for this exact scenario. The structure of the loan, specifically that it must be made to the trust rather than to the individual heir, is what makes the parent-to-child exclusion work.

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Why Sibling Buyouts Under Prop 19 Are So Difficult

The Shift from Proposition 58 to Proposition 19

Before February 16, 2021, Proposition 58 allowed an unlimited transfer of a parent’s property tax base to a child for the family home, plus up to $1 million of assessed value on other real property. Many California families relied on this to keep inherited homes affordable across generations, and trust loans under Prop 58 were a routine part of estate administration.

Proposition 19 replaced that framework. The unlimited transfer is gone. The exclusion for non-primary residences was eliminated entirely. For the family home, the parent-to-child exclusion now applies only if the child occupies the property as their principal residence within one year of the transfer and files for the homeowners’ or disabled veterans’ exemption. Even then, the exclusion is capped.

The $1,044,586 Exclusion Cap

Under Prop 19, the exclusion is limited to the parents’ factored base year value plus $1,044,586 (February 16, 2025 – February 15, 2027) Source: California State Board of Equalization. If the property’s fair market value at the time of transfer exceeds that sum, the excess is added to the new assessed value. In high-priced markets along the California coast and in the Bay Area, this cap is reached frequently. A home with a factored base year value of $300,000 and a market value of $1.8 million would see roughly $455,000 of value added to the new tax base, which translates to thousands in additional annual property taxes for as long as the property is held.

For families dealing with homes valued below the cap, the full parent-to-child exclusion can still apply, but only if the transaction is structured correctly. This is where most sibling buyouts go wrong.

The Sibling Buyout Problem

Consider a typical inheritance. Two siblings receive their parents’ home through a trust. One sibling wants to live in the home and keep it. The other wants their inheritance in cash. The retaining sibling needs to pay the equalization amount, which is the value of the non-retaining sibling’s interest in the property.

Most siblings first attempt to obtain a conventional mortgage or a HELOC in their own name to fund this payment. This is a costly mistake. The California State Board of Equalization treats funds the retaining sibling personally borrows as the sibling’s own money, not as a trust distribution. The result is that a portion of the property is considered a sibling-to-sibling transfer, which is not protected by the parent-to-child exclusion and triggers reassessment on that portion. By the time the tax bill arrives, the mistake typically cannot be reversed.

The Critical Rule: Loan to the Trust, Not the Sibling

The fix is structural. The loan must be made to the trust itself, with the trust as the borrower on the promissory note and the trustee signing on behalf of the trust. The trust uses the loan proceeds to fund the equalizing cash payment to the non-retaining sibling. The trust then distributes the home to the retaining sibling under the terms of the trust, subject to the new loan.

Because the equalization payment to the non-retaining sibling came from the trust and not from the retaining sibling personally, the entire distribution is treated as a parent-to-child transfer for property tax purposes. The Board of Equalization has been consistent on this point under Prop 58, and that interpretation carries forward with Prop 19. This is the only commonly used structure that keeps the parents’ tax base intact for the full value of the home, up to the Prop 19 cap.

Prop 19 Example: A $900,000 Home with Two Siblings

Consider an estate with the following facts:

• Parents’ factored base year value: $220,000
• Annual property tax under Prop 13 (approximate): $2,750
• Current fair market value: $900,000
• Two siblings as equal beneficiaries under the trust
• One sibling intends to occupy the home as their primary residence

To equalize, the retaining sibling owes the non-retaining sibling roughly $450,000 (half of the $900,000 fair market value). The trust borrows $450,000 from a private lender, secured by the home. The trust distributes that $450,000 in cash to the non-retaining sibling, which satisfies that beneficiary’s interest in the estate. The trust then deeds the home, subject to the loan, to the retaining sibling, who refinances the trust loan into long-term financing after taking title.

Because the home’s value of $900,000 is well below the parents’ factored base of $220,000 plus the $1,044,586 cap (a combined ceiling of $1,264,586), the entire transfer qualifies for the parent-to-child exclusion. The retaining sibling continues paying property tax based on the $220,000 assessed value, not on the $900,000 market value. The annual property tax savings versus a fully reassessed scenario are typically substantial, and benefit of this lower tax bill is realized every year the property is held.

If the loan had instead been made to the retaining sibling personally, the BOE would likely treat the equalization payment as a sibling-to-sibling transfer for the portion funded by personal borrowing. The result is a partial reassessment, a permanently higher property tax bill, and no way to unwind the structure after the fact.

How North Coast Financial Structures Trust Loans

North Coast Financial has experience originating private money loans throughout California since 1981. Our trust loans are made directly to the trust, secured by the inherited property in order to fund the equalization payment to the non-retaining beneficiaries. The structure is designed to satisfy Board of Equalization requirements so the parent-to-child exclusion applies to the full distribution.

Key features of a North Coast Financial trust loan:

• Loan is made to the trust, with the trustee signing in their fiduciary capacity, which is the critical requirement for preserving the property tax base
• Designed for the short window between trust distribution and refinance into long-term financing (or cash payoff), with terms typically running up to 12 months
• Closings often complete in seven to ten business days, which matters when the trustee is working under a tight administration timeline
• No prepayment penalties, so the retaining sibling can refinance to a conventional mortgage as soon as title is in their personal name and they have occupied the home

Payment Structure

Payment terms on a trust loan are set on a case-by-case basis, based on the borrower’s plan and the expected payoff timeline. We discuss the right structure with the trustee and the retaining beneficiary during the loan scenario review, and the terms are documented clearly in the loan agreement before closing.

Frequently Asked Questions

Does the retaining sibling have to move into the home for the exclusion to apply?

Yes. Under Proposition 19, the parent-to-child exclusion for the family home requires the child to occupy the property as their principal residence within one year of the transfer and to file for the homeowners’ exemption or disabled veterans’ exemption. Failure to meet the occupancy and filing requirements results in reassessment regardless of how the buyout was funded.

What happens if the home is worth more than the parents’ base plus the $1,044,586 cap?

The excess fair market value above the parents’ factored base plus the cap is added to the new assessed value. The parents’ base is not lost entirely, but the new property tax bill will reflect a higher assessed value than the parents paid on. The cap is adjusted by the Board of Equalization on a periodic basis, so the figure you see in any article should be confirmed against the current BOE publication.

Can the trust loan be refinanced after the buyout is complete?

Yes. Once the property is titled to the retaining sibling and they have occupied it as their primary residence, they can refinance the trust loan into a conventional mortgage. This is the typical exit strategy, and our trust loans carry no prepayment penalty to accommodate it.

Why can’t the retaining sibling use a HELOC or conventional mortgage to fund the buyout?

Because those loans are made to the individual, not to the trust. When the individual personally borrows money to buy out a sibling, the Board of Equalization views the transaction as a sibling-to-sibling transfer for the portion funded by personal borrowing. That portion is not covered by the parent-to-child exclusion and is reassessed at fair market value.

How long does it take to close a trust loan with North Coast Financial?

Typical closings occur within seven to ten business days. Faster closings are possible when the trustee, the title company, and the beneficiaries are prepared and aligned. We will give you a realistic timeline during the scenario review.

Is the trust loan interest deductible for the retaining sibling?

Tax treatment varies based on individual circumstances and the timing of the transfer. Consult a CPA familiar with trust administration and California property tax law before relying on any deduction. We are happy to coordinate with your tax professional during the loan review.

Next Steps

If you or your siblings are working through a buyout of a California family home held in a trust, the structure of the financing determines whether your parents’ low property tax base survives the transfer. A trust loan made directly to the trust is the only commonly used vehicle that satisfies the Board of Equalization’s requirements for preserving the parent-to-child exclusion under Proposition 19.

To review your scenario, including the home’s current value, your parents’ factored base year value, and the equalization math, call North Coast Financial at (760) 722-2991. We will walk through the numbers, confirm whether a trust loan is the right solution, and outline the timeline before any commitments are made.

The information provided herein is for educational purposes only. North Coast Financial is not providing any legal, tax or financial advice.