TL;DR — Key Takeaways

• You can put conditions on an inheritance, structure it through a trust, or disinherit a child entirely. California gives you broad authority over how your assets pass.
• A spendthrift trust is the most common solution. The child receives distributions over time at the trustee’s discretion, and creditors generally cannot reach trust assets.
• California allows you to legally disinherit an adult child. Children are not forced heirs in California.
• If you disinherit a child, the will or trust must say so explicitly. Silence creates ambiguity that leads to litigation.
• Update your trust after every major life event. A trust written ten years ago when the child was struggling may no longer reflect your wishes if circumstances have changed.

Why Some Parents Plan Differently for Different Children

Most estate plans split assets equally among children. That’s the default for a reason — it’s simple, it’s expected, and it usually preserves family relationships.

Equal distribution isn’t right for every family. A child with active addiction may use a $300,000 inheritance in ways that accelerate harm. A child with significant creditor problems may see the inheritance disappear into judgments before they can use it. A child whose marriage is unstable may see inherited assets divided in a divorce. A child with developmental disabilities may lose government benefits if they inherit outright.

Estate planning has tools for each of these. The hard part isn’t the legal mechanism. It’s making the decision and communicating it well enough that it doesn’t blow up the family.

Can I Put Conditions on an Inheritance in California?

Yes. California courts generally enforce conditions placed on inheritances, as long as the conditions are not illegal, against public policy, or so vague they can’t be administered.

Common conditions: distributions tied to age (a fraction at 25, more at 30, the balance at 35), distributions tied to milestones (graduating from college, completing rehab, holding a job for a defined period), or distributions tied to behavior (passing a drug test, maintaining sobriety).

Conditions that won’t work: requirements that violate public policy (forcing a beneficiary to divorce or to convert religion), requirements that are impossible to administer (requirements based on subjective judgment with no clear standard), or restraints that are so absolute they amount to forfeiture without due process.

The trustee enforces the conditions. That’s why trustee selection matters — someone has to make the call about whether the beneficiary completed rehab successfully or lost a job for cause.

What Is a Spendthrift Trust and How Does It Work?

A spendthrift trust is a trust that limits a beneficiary’s ability to assign or encumber their interest, and limits creditors’ ability to reach trust assets. California recognizes spendthrift trusts under Probate Code § 15300 and following sections.

Here’s how it works in practice. The beneficiary doesn’t own the trust assets — the trust does. The trustee makes distributions according to the trust’s terms, often at the trustee’s discretion. The beneficiary can’t pledge their future distributions as collateral, can’t sell their interest, and generally can’t have their interest seized by creditors.

A spendthrift trust isn’t bulletproof. California recognizes exceptions for child support, spousal support, and certain government claims. A creditor with a judgment for child support can usually reach trust distributions; a credit card company generally cannot. [VERIFY: Probate Code § 15305 and related provisions on spendthrift exceptions.]

The protection works best when distributions are at the trustee’s discretion (discretionary support) rather than fixed (“pay $5,000 per month”). Discretionary trusts give creditors much less to grab onto.

Can I Legally Disinherit an Adult Child in California?

Yes. California is not a forced-heirship state. Adult children have no automatic right to inherit from their parents.

To disinherit cleanly, the will or trust must say so explicitly. “I intentionally make no provision for my son [Name]” is the standard formulation. Avoid leaving the child out by silence — California’s omitted child statute (Probate Code § 21620 et seq.) protects children who appear to have been forgotten, particularly children born after the will was signed. Explicit disinheritance forecloses that argument. [VERIFY: current Probate Code § 21620 omitted child statute.]

Some attorneys recommend a small bequest ($1, $1,000, or some token amount) instead of full disinheritance, on the theory that it shows the child wasn’t forgotten. This isn’t legally necessary — the explicit disinheritance language does the same job — but it can defuse a contest argument.

Minor children are different. California law requires support for minor children regardless of estate planning. You can’t disinherit a minor child in a way that leaves them without support if you have the means.

How Do I Protect an Inheritance From My Child’s Creditors?

A discretionary spendthrift trust is the most reliable tool. The child receives distributions only when the trustee decides to make them, and creditors generally cannot force distributions.

Pair the spendthrift trust with a careful trustee selection. A corporate trustee or independent professional trustee can hold firm against creditor pressure better than a sibling or family friend who feels the relational weight.

Avoid “support and maintenance” mandatory standards if creditor protection is the goal. Mandatory distribution standards (“the trustee shall distribute as needed for support”) give creditors more leverage than purely discretionary standards (“the trustee may distribute in the trustee’s sole discretion”).

If the child has imminent creditor problems, talk to an attorney before the inheritance happens. Sometimes accelerating planning — funding the trust before the child has a judgment against them — matters.

What Happens if I Disinherit a Child and Don’t Update My Trust?

Whatever the trust says today is what controls. If you signed a trust ten years ago when your son was estranged and disinherited him, and you’ve since reconciled, the trust still excludes him unless you update it.

The reverse is also true. A trust that names a child equally with siblings will distribute equally, even if circumstances have changed dramatically since the trust was signed.

Trust amendments are straightforward in most cases. A revocable living trust can be amended at any time during the settlor’s life with capacity. Updating a trust after a major change in family circumstances — addiction recovery, marriage or divorce, birth of grandchildren, the child’s death — is the right move. Don’t rely on “my family knows what I want.”

Communicating the Plan

Most family conflicts after a death come from surprise, not from the plan itself. A child who learns at the funeral that they’ve been disinherited or put into a discretionary trust handles it worse than one who knew years earlier.

Whether to communicate, and how much, is a personal decision. Some parents send a letter to be opened with the trust. Some have direct conversations. Some choose silence and let the trust speak. There’s no right answer.

If you’re disinheriting or treating children unequally, document your reasoning in a separate signed letter to be reviewed with the trust. The letter doesn’t change the legal effect, but it gives the trustee context and reduces the chance of a contest based on “the parent must have been confused.”

Call us at 650-668-8000 or schedule a consultation to discuss your habitability situation.

This article is for informational purposes only and does not constitute legal advice. California real estate law is complex and changes frequently. Contact Bay Legal, PC to discuss your specific situation.