Here is the honest starting point, and it is not what most articles on this topic lead with: almost no California family owes estate tax. The 2026 federal exemption is $15 million per person, and California has no state estate tax of its own. So if a trust is going to save your family money, it will almost certainly do it through three other taxes, not that one.
Written by Trust Law Legacy Group, APC, an Estate Planning, Trust & Probate Law Firm in San Jose, California. Updated August 2026.
Quick Answer: For most Bay Area families the tax that matters is not estate tax. It is capital gains, where the basis step-up at death can erase decades of appreciation, and property tax, where Proposition 19 now reassesses most inherited homes. A revocable trust does not change your income tax at all. Irrevocable structures do real estate tax work, but only for households near the $15 million federal exemption.
Table of Contents
Start With Whether You Owe Anything
Add up everything. House, retirement accounts, brokerage, business interest, and the death benefit on any life insurance you own. That last one catches people out. A policy you own is counted in your estate even though you never see a dollar of it.
Compare the total to the federal estate tax exemption of $15 million per person for 2026. A married couple who plan properly can shelter twice that. If you are comfortably under, estate tax planning is not your problem, and any adviser steering you toward complex irrevocable structures on that basis is solving something you do not have.
Near or above it? Or holding concentrated employer equity that could get you there? The second half of this article is written for you.
The Tax That Actually Saves Your Family Money
Capital gains. For a Bay Area family, this is where the real number lives.
When someone dies, the assets in their taxable estate generally receive a new cost basis equal to the date-of-death value. Take a house bought in 1988 for $220,000 and worth $1.8 million today. Sell it during life and the gain is taxable. Inherit it and the basis resets. The gain can simply disappear.
California adds something most states cannot. Because it is a community property state, property that is properly characterized as community property can receive a full basis adjustment on both halves when the first spouse dies, not just on the deceased spouse’s half. For a long-married couple holding a highly appreciated home, that single distinction is often worth more than every other tax feature of the plan combined.
How the trust is drafted and how the property is characterized both matter here. It is one of the few places where a template genuinely costs you money.
Property Tax and Proposition 19
The second tax that reaches ordinary California families is property tax, and the rules changed under Proposition 19 in February 2021.
The old parent-to-child exclusion was broad. The current one is narrow: in most cases the child has to make the inherited home their own principal residence, and the amount excluded from reassessment is capped. Rental properties and vacation homes generally get reassessed to market value.
The practical effect is blunt. A family home carrying a 1990s assessed value can arrive with a property tax bill several times what the parents were paying. Plans written before 2021 assumed the old rules. That assumption no longer holds. We cover the current Prop 19 rules in detail here.
If your plan was written before 2021 and leaves a rental to your children, the assumption behind it has changed.
What a Revocable Trust Does Not Do
A revocable living trust is tax-neutral during your lifetime. It uses your Social Security number, its income goes on your personal return, and it files nothing separate. You have not moved anything out of your estate, because you kept the power to take it all back.
So a revocable trust does not reduce your income tax, and it does not reduce your estate tax. It also does not protect assets from your own creditors: California Probate Code section 15304 makes a spendthrift restraint invalid against the person who created the trust for their own benefit. Genuine asset protection is a separate exercise with separate tools.
None of that makes the revocable trust less valuable. It just means its value is probate avoidance, privacy, incapacity planning, and control over timing, rather than a tax deduction.
When Irrevocable Structures Earn Their Keep
Once a household is genuinely near the exemption, irrevocable planning starts to pay for itself. The mechanism is the same in every case. You give up control. In exchange, the asset and its future growth sit outside your taxable estate.
- Irrevocable life insurance trust (ILIT): the trust owns the policy, so the death benefit is not counted in your estate. It also gives heirs liquidity to pay taxes without selling the business or the house.
- Spousal lifetime access trust (SLAT): moves assets out of the estate while a spouse retains indirect access. Often used to lock in exemption before appreciation.
- Grantor retained annuity trust (GRAT): transfers future appreciation on a concentrated position at a low transfer-tax cost.
- Charitable remainder trust: converts a highly appreciated asset into an income stream with a charitable deduction, which suits founders sitting on low-basis stock.
Two cautions. These are permanent. And the basis step-up you would have received at death is generally the thing you trade away. For families under the exemption, keeping the step-up usually beats avoiding an estate tax they were never going to owe.
The Cost That Is Not a Tax
For most readers the largest avoidable number is not a tax at all. It is statutory probate fees.
California sets attorney and executor compensation as a percentage of the gross probate estate. A $1M gross estate generates about $23,000 in statutory attorney fees, plus an equal $23,000 to the personal representative, before court costs, referee fees, and publication. Note the word gross. The mortgage does not reduce it. A funded trust takes those assets out of the calculation entirely.
Frequently Asked Questions
Does California have an estate or inheritance tax?
No to both. Only the federal estate tax applies. If you own property in another state, that state may impose its own estate tax even though you live in California.
Will putting my house in a trust change my property taxes?
Transferring your own home into your own revocable trust is not a change in ownership for reassessment purposes, so it does not trigger a new assessment. What can trigger reassessment is the later transfer to your children, which is where Proposition 19 applies.
Does an irrevocable trust file its own tax return?
Usually yes. It generally has its own taxpayer identification number and files a fiduciary return, and trust tax brackets compress quickly, so income left inside the trust can be taxed at a high rate. California also taxes trust income based on the residence of fiduciaries and non-contingent beneficiaries, which is worth knowing before naming an out-of-state trustee.
Is a trust worth it if I will never owe estate tax?
For most Bay Area homeowners, yes, but for the probate, privacy, and incapacity reasons rather than the tax ones. Judge it on that basis, not on a tax saving you were never going to realize.
About the Firm
Trust Law Legacy Group, APC is an estate planning, trust, and probate law firm in San Jose, California, serving families across Santa Clara County and the greater Bay Area. Our team includes a specialist certified by the State Bar of California Board of Legal Specialization in Estate Planning, Trust and Probate Law.
This article is general information about California law, not legal advice, and it is not tax advice. Reading it does not create an attorney-client relationship. Tax outcomes depend on facts that change from one household to the next. Talk to a lawyer and a tax adviser about yours.
Ready to put a plan in place? See how our San Jose estate planning attorneys help families with wills, trusts, powers of attorney, and healthcare directives.
