Probate

Disinheriting A Child?

August 18, 2026

You might be thinking this article is about setting up a trust to avoid probate. It’s not, as an estate planning lawyer can explain.

Don’t misunderstand: a trust that avoids probate is a great thing to have. Depending on the state you’re in, it can save your children months, if not years, of headache. But if you’ve done even a little research on trusts, you’ve already heard that message ad nauseam.

What you probably haven’t heard enough about is this: a trust that isn’t drafted carefully can create problems instead of preventing them.

The Real Risk With Disinheriting A Child

One of the biggest issues created around estate planning, usually by accident, lives inside a trust. That issue is disinheriting a child.

This comes up most often in blended families, where a surviving spouse chooses to leave the children from the deceased spouse’s prior relationship out of the plan. On the surface, that might look cruel. But there are plenty of circumstances where it’s actually the more moral and ethical decision. The deceased spouse, for example, may have endured years of manipulation and never had the ability, mentally or emotionally, to stand up for themselves.

Whatever the reasoning, ethical or not, there are specific steps you should take to prevent years of legal fees and courtroom battles after you and your spouse are gone as our friends at Voyant Legal can share.

Step 1: Document Everything

Write down the reasons behind the decision and the steps taken to reach it. Who did you talk to? Who helped you think it through? What was the final decision, and when did you make it? A clear paper trail, created before you pass away, is your best defense against a future challenge.

Step 2: Get a Capacity Evaluation on the Record

Have a mental competency evaluation completed and attached to your trust documents. This can come from a medical professional, or your legal team can perform a testamentary capacity review as part of the process. Either way, document it thoroughly.

This step matters even more than most people realize. In most states, capacity to sign a will or trust boils down to a few basic things: can you identify the people in your life, do you understand your relationship to them, do you understand what you own, and can you form a plan for how to distribute it? Courts generally presume capacity exists at the time a document is signed, even for someone who has some cognitive decline or is under a guardianship. But that presumption can be challenged and overcome. A well-documented capacity evaluation is what stands between “presumed capacity” and a drawn-out fight over whether that presumption should hold.

Step 3: Understand What A No-Contest Clause Can And Can’t Do

Many people assume adding a “no-contest” (or “in terrorem”) clause to a trust will scare off a disinherited child from ever challenging it. That’s only partially true. In most states, a penalty clause for contesting a will or trust is unenforceable if the challenger had probable cause, which is a legitimate legal basis, to bring the case. In other words, a no-contest clause isn’t a shield on its own. It only holds up if there’s no legitimate basis for a challenge in the first place. This is exactly why Steps 1 and 2 matter so much: solid documentation is what removes the “probable cause” a court would otherwise need to let a challenge move forward.

Step 4: Leave A Letter Explaining Your Reasons

Consider leaving a message for the disinherited child explaining the decision and the reasoning behind it. Written in a constructive, non-hostile tone, this kind of letter lets the beneficiary understand your reasons directly from you, rather than filling in the blanks themselves which is usually where resentment and litigation start.

Step 5: Act Alone

This is the most important step. Don’t lean on the surviving beneficiaries to make this decision for you, and don’t let them appear to be behind it. If it looks like someone else pushed for the disinheritance, it starts to look like an attack rather than a deliberate, independent decision, and that’s exactly the kind of appearance that invites a court challenge.

Disinheriting a child is a significant decision that deserves careful thought, not an afterthought. Handle it independently, so no one can credibly argue you were pressured or influenced. Be direct, and don’t waver once you’ve decided. The clearer and more thorough you are now, the smoother things will be for the beneficiaries you leave behind.

Choose to work with an attorney who takes this decision seriously and doesn’t let anything slide just to get the paperwork signed. This issue isn’t going away, as we are headed into the largest generational wealth transfer in history. Taking it seriously now will be the difference between a peaceful transfer or starting a legal war. Contact a lawyer near you for help.