An irrevocable trust in California is a trust that, by its own express terms, cannot be revoked or amended by the person who created it. Once assets are transferred in, they leave the settlor’s estate for good, which is what allows the structure to reduce estate tax exposure and shield property from most creditors. California Probate Code Section 15400 controls the threshold question of whether a trust is irrevocable at all, and the Probate Code sets the rules for how the trust is administered, taxed, and (in limited situations) later changed.
What Makes a Trust Irrevocable Here
California’s default rule catches many people off guard. Under Probate Code Section 15400, a trust is treated as revocable unless the instrument expressly states that it is irrevocable.1Justia. California Probate Code 15400-15414 – Modification and Termination of Trusts Silence favors flexibility. If you want irrevocability, the trust document has to say so in clear language.
Once a trust is validly irrevocable, the settlor gives up nearly all control over the transferred assets. No pulling property back. No swapping beneficiaries because a relationship soured. No redirecting distributions on a change of heart. That loss of control is not a side effect; it is the mechanism. It is what lets the trust operate as a separate legal entity for tax and asset-protection purposes.
Creating and Funding the Trust
California recognizes several ways to form a trust: a written declaration that the owner holds property as trustee, a lifetime transfer of property to another person as trustee, or a transfer that takes effect at death through a will. Two requirements apply in every case. The settlor must clearly intend to create a trust, and there must be identifiable trust property at the moment of creation.2Justia. California Probate Code 15200-15212 – Creation and Validity of Trusts
The practical sequence usually looks like this:
- Draft the trust document. It names the settlor, the trustee, and the beneficiaries; it sets distribution terms, investment powers, and any restrictions; and it expressly states that the trust is irrevocable.
- Execute the document, typically before a notary. California does not always require notarization for trust creation itself, but real property transfers into the trust require notarized deeds.
- Fund the trust. The settlor retitles bank accounts, investment portfolios, real estate, and life insurance policies into the trust’s name.
- Obtain an Employer Identification Number from the IRS. Because the trust is a separate tax entity, it needs its own EIN to open accounts and file returns.3Internal Revenue Service. Instructions for Form 1041 and Schedules A, B, G, J, and K-1
Funding is where most plans quietly fail. A trust that exists only on paper, with no assets actually retitled, provides no protection and no tax benefit. Real estate transfers need new deeds recorded with the county. Financial accounts need formal reregistration. Skipping either step leaves the assets exposed and inside the settlor’s estate.
Common Types of Irrevocable Trusts
Californians use different irrevocable trust structures depending on whether the goal is tax reduction, asset protection, benefit preservation, or charitable giving.
Irrevocable Life Insurance Trust
An ILIT owns a life insurance policy on the settlor’s life. Because the settlor no longer owns the policy, the death benefit is excluded from the settlor’s taxable estate. The trustee pays premiums using gifts from the settlor and distributes the proceeds to beneficiaries free of estate tax when the settlor dies. If the settlor transfers an existing policy into the ILIT and dies within three years, the IRS pulls the proceeds back into the estate.
Charitable Remainder Trust
A charitable remainder trust pays income to the settlor or other named beneficiaries for a set period or for life, then passes the remaining assets to a qualified charity. The settlor takes a partial charitable deduction at contribution, and the trust generally does not pay income tax. The charity’s remainder interest must equal at least 10 percent of the initial value of the assets contributed.4Internal Revenue Service. Charitable Remainder Trusts
Special Needs Trust
A special needs trust holds assets for a disabled beneficiary without disqualifying that person from means-tested public benefits like Medi-Cal or Supplemental Security Income. The trust pays for supplemental needs the government programs do not cover, while the assets stay out of the beneficiary’s countable resources. In California these trusts are closely regulated by the Department of Health Care Services.
Spendthrift Provisions
Any irrevocable trust can include a spendthrift clause that prevents beneficiaries from pledging or assigning their trust interest and blocks most creditors from reaching it. Under Probate Code Section 15300, if the instrument restricts voluntary and involuntary transfers of a beneficiary’s income interest, creditors generally cannot attach that interest until money is actually paid out to the beneficiary.5California Legislative Information. California Probate Code PROB 15300 Child support, spousal support, and certain government claims are exceptions.
What the Trustee Has to Do
A trustee of a California irrevocable trust holds one of the more demanding fiduciary roles in state law. Breach of any one duty can expose the trustee to personal liability.
The duty of loyalty prohibits the trustee from using trust property for personal profit or engaging in any transaction where the trustee’s interests conflict with the beneficiaries’. Any transaction between the trustee and a beneficiary during the trust’s existence that benefits the trustee is presumed to be a fiduciary violation, and the trustee bears the burden of proving otherwise.6California Legislative Information. California Probate Code 16004
The duty of prudent administration requires the trustee to manage the trust with the care, skill, and caution a prudent person would use in similar circumstances.7California Legislative Information. California Probate Code 16040 Investment decisions fall under California’s version of the Uniform Prudent Investor Act, which requires evaluating investments as part of the total portfolio, and weighing risk tolerance, beneficiary needs, inflation, tax consequences, and liquidity.
Under Probate Code Section 16061.7, the trustee must serve a written notification within 60 days whenever a revocable trust becomes irrevocable (typically because the settlor died), whenever the trustee of an irrevocable trust changes, or whenever a settlor’s retained power of appointment takes effect or lapses at death. The notification goes to each beneficiary, and, if the trigger is the settlor’s death, to each of the deceased settlor’s heirs. A settlor cannot waive this requirement; any such waiver is void as a matter of public policy.8California Legislative Information. California Probate Code 16061.7
The trustee also has an ongoing duty to keep beneficiaries reasonably informed. On a beneficiary’s reasonable request, the trustee must provide a report covering trust assets, liabilities, receipts, disbursements, and relevant actions taken.9Justia. California Probate Code 16060-16064 – Trustee’s Duty to Report Information and Account to Beneficiaries Most well-run trusts issue formal accountings annually even without a specific request, because waiting for a dispute to force one usually means the dispute is already serious.
Federal and California Tax Rules
Tax planning is usually why people set these trusts up, and the rules are more layered than most people expect. The critical distinction is whether the trust is a grantor trust or a non-grantor trust.
Grantor Versus Non-Grantor Treatment
An irrevocable trust can still be treated as a grantor trust for income tax purposes if the settlor retains certain powers under Internal Revenue Code Sections 671 through 677, such as the power to control beneficial enjoyment, the power to substitute assets, or a reversionary interest greater than 5 percent of the trust’s value.10Office of the Law Revision Counsel. 26 U.S. Code 671 – Trust Income, Deductions, and Credits Attributable to Grantors and Others as Substantial Owners When a trust is a grantor trust, the IRS ignores it as a separate tax entity and taxes all income directly to the settlor. That is often intentional: the settlor paying the trust’s tax bill effectively makes a tax-free gift to the beneficiaries because it depletes the settlor’s estate without counting as a taxable transfer.
A non-grantor irrevocable trust files its own federal return on Form 1041 and pays tax on income it retains.3Internal Revenue Service. Instructions for Form 1041 and Schedules A, B, G, J, and K-1 Income distributed to beneficiaries is reported on Schedule K-1 and taxed at the beneficiary’s rate, and the trust gets a deduction for what it distributes.
The Compressed Trust Brackets
The biggest tax trap is the compressed federal rate schedule. In 2026, a non-grantor trust that retains income hits the top 37 percent marginal rate at just $16,000 of taxable income. An individual does not reach that rate until well over $600,000. The full 2026 schedule for trusts and estates:
- 10 percent on taxable income up to $3,300
- 24 percent from $3,301 to $11,700
- 35 percent from $11,701 to $16,000
- 37 percent above $16,000
That compression makes it almost always better to distribute trust income to beneficiaries with lower personal rates than to accumulate it inside the trust.
California’s Layer
California taxes trusts through the Franchise Tax Board on Form 541. A trust must file if it has gross income over $10,000 or net income over $100. California trust rates are graduated from 1 percent to 12.3 percent, with the top rate hitting around $743,000 of income. Trusts with taxable income over $1 million owe an additional 1 percent behavioral health surcharge on the excess.11California Franchise Tax Board. 2025 Instructions for Form 541 Fiduciary Income Tax Booklet Between the federal and state layers, a California trust that accumulates income can face a combined top marginal rate approaching 50 percent.
Estate and Gift Tax
The core estate-planning benefit is that assets transferred into an irrevocable trust are no longer part of the settlor’s taxable estate. For 2026, the federal estate tax exemption is $15 million per person, and only estates above that amount face the 40 percent federal estate tax.12Office of the Law Revision Counsel. 26 U.S. Code 2010 – Unified Credit Against Estate Tax Properly planned, a married couple can shelter up to $30 million combined. Even for estates below the exemption, moving appreciating assets in early keeps future growth outside the taxable estate.
Funding an irrevocable trust is a gift for federal gift tax purposes. The 2026 annual gift tax exclusion is $19,000 per recipient, so a settlor can contribute up to that amount per beneficiary each year without filing a gift tax return or using any lifetime exemption.13Internal Revenue Service. Frequently Asked Questions on Gift Taxes Larger contributions eat into the unified estate and gift tax exemption.
Property Tax Reassessment Risk
Moving California real estate into an irrevocable trust can trigger reassessment under Propositions 13 and 19. Placing property into an irrevocable trust where someone other than the settlor is the beneficiary counts as a change in beneficial ownership, and the county assessor may reassess to current market value. For a home held for decades at a low assessed value, that can double or triple the annual property tax bill.
Proposition 19 narrowed the parent-to-child exclusion. It now applies only to a primary residence (and family farms), and only if the child uses the property as their own primary residence within one year. A transfer to an irrevocable trust where children are beneficiaries but no one occupies the home generally will not qualify. Get a preliminary read from a tax professional or the county assessor’s office before recording any deed.
Medi-Cal Long-Term Care Planning
Assets inside a properly structured irrevocable trust are generally not counted toward the applicant’s resources for Medi-Cal eligibility. California applies a look-back period to asset transfers: a 30-month look-back for cash and liquid assets, and a longer look-back for real property. Transfers into an irrevocable trust within those windows can produce a penalty period during which Medi-Cal will not cover long-term care costs, calculated by dividing the transfer amount by the average monthly cost of nursing home care in California. Planning around these rules works only if it starts years before care is needed.
Changing or Ending an Irrevocable Trust Later
Irrevocable does not mean permanent under every circumstance. California provides several routes, none of them fast.
If the settlor is alive and all beneficiaries agree, the trust can be modified or terminated by written consent, no court involvement required. If some beneficiaries do not consent, the settlor and the consenting beneficiaries can petition the court, so long as the non-consenting beneficiaries’ interests are not substantially impaired.14California Legislative Information. California Probate Code 15404
When the settlor is gone, all beneficiaries can petition the court under Probate Code Section 15403. The court will grant the petition unless the trust still serves a material purpose, and even then it has discretion to approve the change if the reasons outweigh that purpose.1Justia. California Probate Code 15400-15414 – Modification and Termination of Trusts The court cannot terminate a trust with a valid spendthrift clause absent good cause.
Courts can also modify a trust when circumstances have changed enough that enforcing the original terms would defeat the settlor’s intent. For charitable trusts, California applies the cy pres doctrine, allowing the court to redirect trust assets to a similar charitable purpose when the original one has become impossible or impractical.15Internal Revenue Service. The Cy Pres Doctrine: State Law and Dissolution of Charities Cy pres does not apply to non-charitable trusts.
Any of these routes means legal fees, filing costs, and possibly months of litigation if a beneficiary objects. Careful drafting at the start, including trust protector provisions and decanting powers, avoids most of that pain later.