Disinheritance is not complicated in principle. A person has broad freedom to leave their estate to whoever they choose and to exclude whoever they choose. But the gap between intending to disinherit someone and actually doing it correctly is where estates go wrong. Simply not mentioning someone in a will does not always disinherit them. In some cases it can trigger legal protections that give them a share anyway. And a disinheritance that is poorly documented or that looks like the product of undue influence is a disinheritance that gets contested.
Here is how to disinherit someone effectively, who cannot be fully disinherited under state law, and how to make the decision hold up if it is challenged.
The basic rule: freedom of testation
American law gives people making wills (people who make a will) broad freedom to dispose of their property as they see fit. With limited exceptions, a person can leave their estate to strangers, charities, distant relatives, or anyone else, while excluding their own children, siblings, or other close relatives. This principle is called freedom of testation, and it is the foundation of the U.S. approach to estate planning.
The exceptions matter, and they vary by state. Spouses have the most significant statutory protections. Minor children have some protections in specific circumstances. Adult children have almost none in most states. Understanding which category applies to the person you want to disinherit determines how much freedom you actually have and what steps are required.
How to disinherit an adult child
In most states, an adult child has no automatic right to inherit from a parent. A parent can exclude an adult child entirely from their will without any special procedure, statement, or explanation. The will simply does not name the child as a beneficiary.
However, simply omitting a child's name creates a specific legal risk: the pretermitted heir doctrine. Most states have pretermitted heir statutes that protect children who were accidentally omitted from a will. The statute presumes that a child not mentioned in the will was omitted by mistake, not by intent, and awards them an intestate share unless the will affirmatively demonstrates the omission was intentional.
To avoid a pretermitted heir claim from an adult child, the will should expressly acknowledge the child by name and state that they are intentionally receiving nothing. A simple provision works: "I intentionally make no provision for my son [Name], and this omission is not the result of accident or mistake." This language demonstrates that the person making the will knew the child existed and chose to exclude them, which defeats the pretermission argument.
The provision does not need to explain the reason for the exclusion. Reasons are not legally required and can actually create problems: a stated reason that turns out to be factually questionable gives a contesting heir something to attack. A clean statement of intentional omission without explanation is typically the stronger approach.
How to disinherit a spouse: the forced share problem
Disinheriting a spouse is significantly harder than disinheriting a child, and in most states it is not fully possible without the spouse's cooperation. Every state except Georgia gives a surviving spouse some form of forced share: a statutory minimum of the estate that the spouse receives regardless of what the will says.
In common law property states, the forced share (called an elective share in most states) typically ranges from one-third to one-half of the estate. The specific amount and calculation method vary by state. A surviving spouse who is left less than their elective share by the will can elect against the will and take their statutory minimum instead. A will-maker who leaves their entire estate to their children and nothing to their spouse will find that the spouse can claim their elective share, reducing what the children receive.
In community property states (Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin), the forced share concept works differently. Each spouse automatically owns half of all community property acquired during the marriage. A will-maker can freely dispose of their half of the community property and their separate property, but they cannot will away their spouse's half of the community property. A California will-maker who tries to leave the family home entirely to their children cannot succeed if the home is community property: the surviving spouse already owns half of it.
The only reliable way to disinherit a spouse in a common law state is through a valid prenuptial or postnuptial agreement in which the spouse waives their elective share rights. Without such an agreement, the forced share applies regardless of what the will says.
Protecting minor children's interests
Minor children have some protections against disinheritance, though they are narrower than spousal protections. Most states do not give minor children an absolute right to inherit from a parent. However, several states, including Florida, have homestead laws that restrict how the family home can be devised when the person making the will has a surviving spouse or minor children.
Florida's homestead law is particularly significant. A Florida homeowner cannot devise their homestead to anyone other than their spouse if they have a surviving spouse, and cannot devise it in any way that would leave a minor child without a place to live. These restrictions apply regardless of what the will says and can override express disinheritance provisions as to the homestead property.
Beyond homestead rules, pretermitted child statutes in many states give minor children (and in some states, all children born after the will was executed) a share of the estate if they were omitted from the will. The same approach used for adult children applies: acknowledge the child by name and state that the omission is intentional.
Disinheriting other relatives
Siblings, parents, grandchildren, and other relatives have no statutory right to inherit from a living person's estate in any state. A will-maker can exclude any of these relatives entirely without any special language or procedure, simply by not naming them as beneficiaries. The pretermitted heir doctrine does not apply to relatives other than children in most states, so there is no need for an express acknowledgment of the exclusion unless the will-maker wants to make the intent unambiguous for the record.
That said, even when not legally required, an express acknowledgment of the intended exclusion can reduce the chance of a successful contest. A sibling who is excluded without mention has a slightly easier time arguing undue influence or incapacity than one who is named and deliberately excluded.
Making the disinheritance stick: reducing contest risk
A disinheritance that is legally valid can still be challenged in probate on grounds of undue influence, lack of capacity, or fraud. These challenges are most likely when the person being disinherited is a close relative who expected to inherit, when the disinheritance is recent, and when the person had a health condition that could be characterized as affecting capacity.
Several steps reduce contest risk. Having the will drafted and executed with professional involvement, whether an attorney or a guided platform with clear instructions, creates a record of careful deliberate planning. Executing the will while the person making the will is clearly healthy and competent is better than executing it during an illness. A self-proving affidavit with notarization creates a contemporaneous record that they signed knowingly and voluntarily.
A capacity letter from the the will-maker's physician, obtained around the time of execution, provides contemporaneous evidence of mental competency. This is most valuable when the person making the will has any health condition that a contesting heir might point to as evidence of incapacity, and most attorneys recommend it when disinheritance of close relatives is involved.
A no-contest clause (also called an in terrorem clause) can add another layer of protection. This provision states that any beneficiary who contests the will forfeits their bequest. It is only effective if the contesting party stands to receive something under the will, since a person who receives nothing has nothing to lose by contesting. For a disinherited person who receives a small bequest specifically to make the no-contest clause effective, the clause creates a financial disincentive to challenge. No-contest clauses are enforceable in most states, though California, Florida, and a handful of others have restricted their enforceability in certain circumstances.
A simple approach using a guided platform
For most adults disinheriting adult children or other relatives, the steps are straightforward: name the person expressly in the will, state the omission is intentional, and execute the will correctly with a self-proving affidavit. Quicken WillMaker & Trust by Nolo allows the will-maker to name individuals and specify that they are intentionally excluded, generating the correct language for the state and the proper execution instructions. Attorney involvement is worth considering when the disinheritance is likely to be contested, when it involves a spouse in a common law state, or when there are significant assets at stake.
A real-world example
Eleanor has three adult children. She is estranged from her son David and wants to leave her entire estate to her daughters. Her will names her two daughters as equal beneficiaries and includes the following provision: "I intentionally make no provision for my son David [Last Name]. This omission is not the result of accident or mistake." She executes the will before two unrelated witnesses and a notary who notarizes the self-proving affidavit. Her physician provides a brief letter confirming she was mentally competent at the time. When Eleanor dies, David contests the will on grounds of undue influence, claiming his sisters pressured Eleanor to exclude him. The express disinheritance language, the self-proving affidavit, and the physician's letter combine to make the contest difficult. The probate court upholds the will. If Eleanor had simply not mentioned David, he could have claimed pretermission and received an intestate share regardless of what she intended.
State variations worth knowing
California allows people making wills to disinherit adult children freely with express acknowledgment language. California's elective share for spouses is governed by community property rules rather than a statutory elective share percentage. California enforces no-contest clauses but only against contests brought without probable cause.
Texas follows community property rules for spousal rights. A Texas resident can disinherit adult children with express language. Texas enforces no-contest clauses broadly, making them a useful tool in Texas estate plans that involve disinheritance.
Florida has a homestead law that restricts disinheritance of spouses and minor children as to the homestead property, regardless of what the will says. Florida does not enforce no-contest clauses, making them unavailable as a disinheritance protection tool in Florida estates.
New York has an elective share statute giving a surviving spouse the right to one-third of the augmented estate. New York allows disinheritance of adult children with express language. New York enforces no-contest clauses against contests that lack probable cause.
Illinois has an elective share giving a surviving spouse one-third of the estate. Illinois allows disinheritance of adult children. Illinois enforces no-contest clauses, though courts interpret them narrowly.
Frequently Asked Questions
Do I need to give a reason for disinheriting someone in my will?
No. A reason is not legally required in any state and is generally not recommended. A stated reason that is factually debatable gives a contesting heir something to attack: if the reason is "my son has not spoken to me in ten years" and the son can produce evidence of contact, the stated basis for the disinheritance becomes a liability. A clean statement of intentional omission without explanation is legally sufficient and strategically cleaner. If the will-maker wants to document their reasons for personal reasons, doing so in a separate private letter rather than in the will itself keeps the reasoning out of the probated document, which becomes public record.
Can I disinherit my spouse completely?
Not in most states without their cooperation. Every state except Georgia gives a surviving spouse a forced share or elective share that they can claim regardless of what the will says. In community property states, the surviving spouse already owns half of all community property acquired during the marriage, which the will-maker cannot will away. The only reliable path to disinheriting a spouse in a common law property state is a valid prenuptial or postnuptial agreement in which the spouse waives their statutory inheritance rights. Without that agreement, the forced share survives any attempt at disinheritance through the will alone.
What happens if I accidentally leave someone out of my will?
If the omitted person is a child, they may be able to claim a pretermitted heir share under the state's statute, which gives them the share they would have received if the person had died without a will. The claim is available specifically because the law presumes accidental rather than intentional omission. To defeat the claim, the estate would need to show the omission was intentional, which is harder without express disinheritance language in the will. For other relatives, accidental omission is generally not actionable since they have no statutory right to inherit.
Can a disinherited person still contest the will?
Yes. A disinherited person can contest a will on grounds of lack of testamentary capacity, undue influence, fraud, or improper execution. The fact that the will expressly disinherits them does not prevent a contest; it just establishes that the disinheritance was intentional if the will is upheld. Whether a contest succeeds depends on the evidence available. Express disinheritance language, a self-proving affidavit, a capacity letter, and careful execution all make a successful contest less likely but do not eliminate the possibility.
Is a no-contest clause always enforceable?
Not everywhere. Florida does not enforce no-contest clauses at all, making them useless in Florida estates. California enforces them only against contests filed without probable cause, meaning a person with a reasonable basis to contest can do so without triggering the clause. Most other states enforce no-contest clauses to varying degrees, with some requiring that the contest lack probable cause before the forfeiture applies. The practical value of a no-contest clause depends entirely on whether the potentially contesting person stands to receive something meaningful under the will, since a person who receives nothing has no financial stake to lose.