Technical LibraryBriefings

How Do I Disinherit Someone in California?

All Briefings

Jurisdiction: California Primary Statutes: Cal. Prob. Code §§ 21310–21315 (No-Contest Clauses); §§ 21600–21612 (Omitted Heirs); §§ 6400–6455 (Intestate Succession); §§ 100–101 (Community Property at Death); § 15300 et seq. (Spendthrift and Protective Trusts) Last Reviewed: 2026 Category: Wills | Trusts | Estate Litigation


Executive Summary

Disinheritance is legally available in California for most potential beneficiaries. An adult child, a sibling, a parent, a prior spouse — none of these has a legal right to inherit from you, and you may exclude them from your estate plan without explanation, legal justification, or their consent.

Two categories of person cannot be fully disinherited under California law: a surviving spouse (who retains community property rights regardless of what any will or trust says) and certain omitted heirs (a spouse who married after the will was executed, or a child born or adopted after the will was signed) unless specific disinheritance language addresses them expressly.

Beyond those categories, the mechanics of effective disinheritance involve more than simply omitting a name. Assets that pass outside of a will or trust — retirement accounts, life insurance, joint tenancy property — are unaffected by estate planning documents and require separate attention. A no-contest clause can reinforce the plan but, since 2010, its deterrent effect in California is significantly weaker than most clients assume.


Governing Law

Community Property Rights: Cal. Prob. Code §§ 100–101

California is a community property state. All income earned by either spouse during the marriage, and all property acquired with that income, is owned equally by both spouses — regardless of whose name appears on the account or deed. At death, the decedent may dispose of only their one-half of community property. The surviving spouse already owns the other half; it does not pass through the estate at all, and no will or trust can reach it.

A testator who attempts to leave the surviving spouse’s half of community property to someone else has no legal authority to do so. The transfer is void as to that half. In practice, this means a surviving spouse cannot be “disinherited” with respect to community property — the legal question does not arise because the property was never solely the decedent’s to give.

The decedent may, however, dispose of their one-half of community property and all separate property (property owned before marriage, or acquired during marriage by gift or inheritance) as they choose — including leaving it entirely to someone other than the surviving spouse.

Omitted Heirs: Cal. Prob. Code §§ 21600–21612

An omitted heir is a person who would be entitled to inherit under California law but who is not mentioned in the will or trust — not because the testator intended to exclude them, but because the will predates their arrival in the family. California law presumes, in certain circumstances, that the omission was inadvertent and awards the omitted heir a share of the estate regardless of the will’s terms.

The omitted heir categories are:

  • A surviving spouse who married the testator after the execution of all testamentary instruments (wills and revocable trust instruments)
  • A child born or adopted after the execution of all testamentary instruments
  • A child living at the time the testamentary instruments were executed who was omitted solely because the testator believed the child to be dead or was unaware of the child’s birth

If a testator intends to exclude any of these persons — knowing of their existence or anticipating the possibility — the will or trust must expressly say so. Silence is interpreted as inadvertent omission, not intentional disinheritance. A general disinheritance clause that addresses this category by name eliminates the ambiguity.

Intestate Succession: Cal. Prob. Code §§ 6400–6455

Assets that are not disposed of by a valid will or trust, and that do not pass by beneficiary designation or operation of law, pass by intestate succession to the decedent’s heirs in a fixed statutory order. A disinheritance plan that fails to account for every asset — leaving any asset without a designated disposition — risks inadvertently delivering property to the person the testator intended to exclude, by default operation of the intestacy statutes. A residuary clause in the will, or a catch-all provision in the trust, prevents this by sweeping up unallocated assets.

No-Contest Clauses: Cal. Prob. Code §§ 21310–21315

A no-contest clause (also called an in terrorem clause) is a provision in a will or trust that penalizes a beneficiary who contests the instrument by forfeiting what they would otherwise receive under it. California law recognizes no-contest clauses but, following a significant statutory overhaul effective January 1, 2010, substantially limits their enforceability.

Under the current statutory scheme, a no-contest clause is enforceable only against a direct contest — a pleading that alleges the invalidity of the instrument or a part of it on grounds such as lack of capacity, undue influence, fraud, duress, or forgery. It is not enforceable against:

  • A contest brought with probable cause — if a beneficiary has objectively reasonable grounds for their challenge, the no-contest clause does not apply even if they lose
  • A petition to determine the character, title, or ownership of property (not a challenge to the instrument itself)
  • A creditor’s claim
  • A request for an accounting
  • A challenge to the manner of trust administration
  • A claim that a document is not the instrument referred to in the no-contest clause

The statutory changes, codified at Cal. Prob. Code § 21311, reflect a deliberate legislative policy choice to preserve access to the courts for meritorious challenges, even at the cost of reducing the deterrent effect of no-contest clauses.


Who Can and Cannot Be Disinherited

Person Can Be Disinherited? Key Rule
Adult child Yes No legal right to inherit; omit from will/trust without explanation
Minor child Yes (financially) No inheritance right, but may have separate support obligations during life
Parent Yes No legal right to inherit from an adult child
Sibling, other relative Yes No legal right to inherit
Prior spouse Yes Prior divorce severs most inheritance rights automatically; confirm deed and beneficiary designations
Surviving spouse (community property) No Owns half of community property regardless of testamentary documents
Surviving spouse (separate property) Yes Decedent may dispose of separate property to others
Omitted spouse (married after will executed) Not without express language Must include specific disinheritance language; silence treated as inadvertent omission
Omitted child (born/adopted after will executed) Not without express language Same rule; will must address post-execution children expressly

Mechanics of Effective Disinheritance

Will or Trust: Omission vs. Express Exclusion

For most potential beneficiaries — adult children, siblings, parents, other relatives — the correct approach is simply to omit them. There is no legal requirement to name someone in order to exclude them, and no obligation to explain the exclusion. A will or trust that distributes all assets to other beneficiaries, with a properly drafted residuary clause, accomplishes the disinheritance without mentioning the excluded person.

Whether to include an express disinheritance clause — “My daughter [Name] shall receive nothing under this will” — is a judgment call with considerations on both sides. Some attorneys include it to foreclose any argument that the omission was inadvertent, particularly where other children are named and the excluded person could claim they were overlooked. Others avoid it on the theory that naming the excluded person is inflammatory and more likely to provoke a contest than to deter one. The correct choice depends on the specific family circumstances and the risk profile of the situation.

For omitted heirs — a post-marriage spouse, a child born after the will was executed — an express disinheritance clause is not optional. It is legally required for the exclusion to be effective.

Assets That Pass Outside the Will or Trust

A will governs only probate assets — property in the decedent’s name alone, without a joint tenant or beneficiary designation. A trust governs only assets that have been transferred into the trust. Neither instrument reaches:

  • Retirement accounts and IRAs — pass by beneficiary designation directly to the named beneficiary
  • Life insurance — passes by beneficiary designation, outside the estate entirely
  • Joint tenancy property — passes automatically to the surviving joint tenant by right of survivorship
  • Payable-on-death and transfer-on-death accounts — pass by contractual designation
  • Community property held in the surviving spouse’s name — the surviving spouse’s half is already theirs

An effective disinheritance requires a review of every asset category. If the person to be excluded is named as a beneficiary on a retirement account or life insurance policy, changing the estate planning documents accomplishes nothing as to those assets. Beneficiary designations must be updated separately and confirmed in writing with the financial institution.

⚠️ CRITICAL ISSUE: The most common disinheritance failure is not a defect in the will or trust — it is a beneficiary designation that was never changed. A testator who disinherits an adult child through a carefully drafted trust but leaves a retirement account naming that child as beneficiary has created exactly the result they sought to avoid, for that asset.

Capacity and Execution Formalities

A will or trust executed for the purpose of disinheriting someone is, by definition, a high-stakes document from the perspective of the excluded person. These are the instruments most likely to be contested on grounds of lack of testamentary capacity or undue influence. The drafting attorney should:

  • Document the circumstances of the client’s retention and the instructions given, in a memorandum maintained in the file
  • Conduct at least one meeting with the client without any potentially interested party present
  • Obtain a physician’s assessment or other capacity evidence if there is any question of cognitive impairment
  • Ensure that the will is executed with two disinterested witnesses and, for trusts, that all formalities are observed
  • Consider a contemporaneous video recording of the signing ceremony, particularly for elderly clients or those with contested capacity

These precautions protect against a successful contest, which is the only tool available to the excluded person once the instrument is properly executed.


No-Contest Clauses: Effectiveness and Limitations

What a No-Contest Clause Does

A no-contest clause operates as a conditional forfeiture: a beneficiary who receives something under the instrument but then challenges it risks losing what they would have received. The mechanism is grounded in contract-like logic — the testator’s offer of a bequest comes with a condition of non-contest.

The strategic use is obvious. A testator who disinherits one child but leaves something to the others can include a no-contest clause that operates against the favored children. If the excluded child persuades a sibling to join in a contest, the sibling risks their own bequest. This creates a structural disincentive to coalition-building among potential contestants.

It is also sometimes recommended — precisely for this reason — to leave a small bequest to the disfavored person. A person who receives nothing under the instrument has nothing to lose by contesting it; the no-contest clause has no leverage. A modest bequest gives the excluded person something at stake and makes the clause operable against them directly.

What California Law Actually Enforces: The Probable Cause Exception

The critical limitation is Cal. Prob. Code § 21311(a)(1): a no-contest clause does not apply to a direct contest brought with probable cause. Probable cause means objectively reasonable grounds for the contest — evidence that, if believed, would support the legal theory asserted. A disgruntled beneficiary with a credible claim of undue influence can contest the instrument without triggering the forfeiture, even if they ultimately lose, so long as their grounds were not frivolous.

This exception substantially limits the practical deterrent effect of no-contest clauses in California. A well-resourced excluded person with any colorable claim — and in most contested family situations, the facts supply at least some basis for one — can challenge the instrument without personal financial risk, as long as they can articulate probable cause for the challenge.

The result, in practice, is that a no-contest clause deters only bad-faith or frivolous contests — the kind that would likely be disposed of on a motion in any event. It does not reliably deter a motivated challenger with a lawyer and a plausible theory.

⚠️ COMMON ERROR: Clients sometimes treat a no-contest clause as a primary defense against challenges to a disinheritance. Under California’s post-2010 statutory scheme, it is not. The better defense is a properly documented, carefully executed instrument with contemporaneous evidence of testamentary capacity and independent volition. A no-contest clause is a supplementary tool, not a substitute for rigorous drafting and execution.

What a No-Contest Clause Cannot Reach

Even setting aside the probable cause exception, California law expressly exempts several categories of proceeding from no-contest clause enforcement:

  • Creditor claims — a beneficiary-creditor may file a creditor’s claim without triggering forfeiture
  • Accountings — a beneficiary may demand a trust accounting without contest risk
  • Property characterization disputes — challenges to whether specific assets are community or separate property, or whether they belong in the trust at all
  • Administrative petitions — petitions regarding trustee conduct, fee disputes, or procedural matters
  • Instruments not named — a challenge to a document other than the one containing the clause (e.g., a challenge to a deed, a beneficiary designation, or a different trust instrument)

A contestant’s attorney who understands Cal. Prob. Code §§ 21310–21315 can often find a procedural path that achieves the litigation objective without technically triggering the clause.

📌 PLANNING NOTE: The strategic value of a no-contest clause today is less about legal deterrence and more about psychology. Many family members — even those with grievances — are deterred by the clause’s presence, not because they have analyzed the probable cause exception but because they do not want to risk losing their bequest. For clients whose goal is to reduce the probability of a contest without necessarily winning every contest, the clause still serves a purpose. It should simply not be relied upon as the primary mechanism of protection.

Trusts vs. Wills: Application of No-Contest Clauses

No-contest clauses in California apply equally to wills and trust instruments. Cal. Prob. Code § 21310 defines “instrument” to include both. A testator who uses a revocable living trust as the primary estate planning vehicle can include a no-contest clause in the trust, and it will be governed by the same §§ 21310–21315 framework. Because most California estate plans use a trust as the primary instrument with a pour-over will, the clause typically appears in the trust — where the substantive assets are held — and may also appear in the will for completeness.


Practice Notes

Drafting

  • Include a residuary clause in both the will and the trust to prevent any asset from falling to the excluded person through intestacy
  • For each omitted heir category, address the exclusion expressly in the instrument, not by implication
  • When including a no-contest clause, specify clearly which instruments it covers and what conduct constitutes a “direct contest” under the instrument’s terms — courts construe ambiguous clauses narrowly
  • Consider whether to leave a nominal bequest to the disfavored person to give the no-contest clause operative leverage; the size of the bequest must be sufficient that a rational person would think twice before forfeiting it
  • Document the client’s instructions in a dated memorandum, kept in the file, describing the client’s reasons for the exclusion in their own words — this is the most valuable evidence if capacity or undue influence is later alleged

Non-Probate Assets

  • Obtain a complete inventory of all accounts with beneficiary designations (retirement accounts, IRAs, 401(k)s, 403(b)s, life insurance, annuities, payable-on-death accounts)
  • Confirm in writing with each institution that the designations have been updated and that the confirmation reflects the current beneficiary
  • For joint tenancy real property, confirm whether a severance or re-titling is needed and address it by deed

Capacity Documentation

  • If the client is elderly or there is any family conflict that could generate a capacity challenge, consider a contemporaneous physician’s letter confirming capacity at or near the time of execution
  • A video recording of the signing ceremony, while not legally required, provides powerful evidence of a client who is oriented, articulate, and acting independently
  • Conduct at least one client meeting without family members present and document that the instructions were given privately

NOT LEGAL ADVICE. This article is prepared for professional reference and educational purposes only. It does not constitute legal advice and does not create an attorney-client relationship. Legal and tax professionals must conduct their own independent research and due diligence before relying on any analysis contained in this article. Laws, regulations, and administrative interpretations are subject to change. Application of these principles to specific facts requires professional judgment that this article cannot substitute for.

Questions about your situation? Schedule a no-obligation consultation.

Schedule a Free Consultation
Free Consultation (805) 703-2282