Contesting a Will: Grounds, Process, and What Families Need to Know

By James K. Boyles, CLU, CFS | Published March 23, 2026 | Reviewed by James K. Boyles, CLU, CFS

Key Takeaways

Contesting a will is one of the most emotionally difficult and legally complex actions a family member can take. It pits relatives against each other in court, often at a time when grief and financial stress are already running high. But there are situations where a will contest is not only justified — it is necessary. When a loved one's final wishes were the product of manipulation, confusion, or outright fraud, the legal system provides a mechanism to challenge the document and seek a fair outcome.

The process of contesting a will is not simple. It requires legal grounds, legal standing, evidence, and a willingness to endure what can be a costly and time-consuming court proceeding. This guide explains what is required, what the process looks like, and what families should consider before filing a challenge.

What Does It Mean to Contest a Will?

Contesting a will means formally objecting to the validity of a will during the probate process. The contestant files a legal challenge with the probate court arguing that the will — or a specific provision in it — should not be enforced because it was created or executed improperly. If the contest is successful, the court may invalidate the will entirely (in which case a prior will or intestacy laws govern the estate) or invalidate only the contested provision.

It is important to understand that contesting a will is not the same as being disappointed with it. A person cannot challenge a will simply because they received less than they expected or because they disagree with the deceased person's choices. The law requires specific, recognized grounds.

The Four Grounds for Contesting a Will

Lack of testamentary capacity. The person who signed the will (the testator) must have been of sound mind at the time the will was executed. This means they understood the nature and extent of their property, knew who their natural heirs were, understood they were signing a will, and understood how the will distributed their assets. Dementia, Alzheimer's disease, or other cognitive impairments can be grounds for a capacity challenge — but the standard is measured at the moment the will was signed, not before or after.

Undue influence. This is the most common ground for will contests. Undue influence occurs when someone in a position of trust or authority over the testator exerts pressure — emotional, psychological, or physical — that overcomes the testator's free will. The classic scenario involves a caregiver or family member who isolates the testator from other relatives, controls access to information, and manipulates the testator into changing the will to benefit themselves.

Fraud. Fraud occurs when the testator is intentionally deceived about the nature or contents of the document they are signing. For example, if someone tells the testator the document is a power of attorney when it is actually a will, or if someone lies about a family member's behavior to induce the testator to disinherit them.

Improper execution. Every state has specific requirements for how a will must be signed and witnessed. Most states require two witnesses who are present when the testator signs the will and who then sign the will themselves. If these formalities are not followed, the will may be invalid regardless of what the testator intended.

Who Can Contest a Will?

Not everyone can contest a will — only people with legal "standing." Standing generally requires that the person has a financial interest in the outcome. This includes beneficiaries named in the current will, beneficiaries named in a prior will who were removed or had their share reduced, and intestate heirs — people who would inherit under state law if there were no valid will.

A friend, neighbor, or distant relative who is not named in any will and would not inherit under intestacy laws generally does not have standing to file a will contest, regardless of how strongly they believe the will is invalid.

The Timeline and Process

Will contests must be filed within a specific window, which varies by state. In many states, the deadline is measured from the date the will is admitted to probate or the date the interested party receives formal notice of the probate filing. Deadlines range from as short as 30 days to as long as one year. Missing this window almost always bars the contest permanently.

The process typically begins with filing a formal objection with the probate court. Discovery follows — both sides gather evidence, take depositions, and may retain expert witnesses (such as a physician who examined the testator or a handwriting expert). Many will contests are resolved through mediation or settlement before reaching trial. Those that go to trial are decided by a judge, and in some states, by a jury.

The Cost of Contesting a Will

Will contests are expensive. Attorney fees, expert witness fees, court costs, and the time investment can add up quickly. Costs of $10,000 to $50,000 or more are common, and complex cases involving large estates can cost significantly more. Some attorneys handle will contests on a contingency basis (they receive a percentage of any recovery), but many require hourly fees paid upfront.

The emotional cost is equally significant. Will contests often fracture families permanently. Even when a contest is successful, the relationships damaged by the process may never recover.

No-Contest Clauses

Many wills include a no-contest clause — also called an "in terrorem" clause — that provides that any beneficiary who contests the will forfeits their inheritance. The purpose is to discourage frivolous challenges. If a beneficiary stands to receive $100,000 under the will, the no-contest clause forces them to weigh whether the potential recovery from a successful contest is worth the risk of losing their guaranteed inheritance.

The enforceability of no-contest clauses varies significantly by state. Some states enforce them strictly. Others — including Florida — refuse to enforce them entirely. Still others take a middle approach, enforcing the clause only if the contestant lacked "probable cause" for the challenge. Understanding the rules in the applicable state is essential before deciding whether to contest.

The Bottom Line

Contesting a will is a serious step that should not be taken lightly. It requires specific legal grounds, legal standing, and a realistic assessment of the costs — both financial and emotional. But when a will is the product of manipulation, fraud, or cognitive impairment, the legal system provides a path to challenge it. The key is to act quickly, consult with an experienced probate litigation attorney, and make an informed decision based on the facts, the law, and the family's circumstances.

Frequently Asked Questions

What are the grounds for contesting a will?

The four primary grounds are lack of testamentary capacity, undue influence, fraud, and improper execution. You cannot contest a will simply because you disagree with how assets were distributed.

Who can contest a will?

Only people with legal standing — typically beneficiaries named in the current or a prior will, and intestate heirs who would inherit under state law if the will were invalidated.

How long do you have to contest a will?

The deadline varies by state but is typically between 30 days and one year after the will is admitted to probate. Missing this deadline generally bars the contest permanently.

What is a no-contest clause in a will?

A no-contest clause says any beneficiary who challenges the will forfeits their inheritance. Enforceability varies by state — some enforce them strictly, others do not enforce them at all.

Learn More in the Book

This topic is covered in depth in A Consumer's Guide to Estate Planning Issues: What Every Family Needs to Know — 25 chapters on wills, trusts, probate, Medicaid planning, and more.

Available on Amazon
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James K. Boyles, CLU, CFS | Estate Planning Author & Expert Reviewer

Published author of the Consumer's Guide to Estate Planning series. Expert reviewer for Legacy Assurance Plan, reviewing 418+ estate planning articles for accuracy across trusts, wills, probate, Medicaid planning, and more. jameskboyles.com