How to Contest a Will: Grounds, Standing, and Deadlines

Contesting a will means asking a court to declare it — or part of it — legally invalid. Courts take these challenges seriously, but they also set a high bar. Simply being unhappy with what a will says, or feeling a distribution is unfair, is not enough. To succeed, you generally need a recognized legal ground, the legal standing to bring the challenge, and you must act before a strict deadline. All of these requirements are governed by state law and vary significantly from state to state.

Who Can Contest a Will: Standing

Not everyone can challenge a will — only a person with legal standing can do so. Standing in a will contest typically means you are an "interested party": someone who would be financially affected by the outcome. That usually includes:

• A person who would inherit under the state's intestacy law if there were no valid will — a spouse, child, or other heir
• A person who was named as a beneficiary in an earlier version of the will
• A beneficiary named in the current will who believes they were shortchanged due to fraud or undue influence

Distant relatives, friends, or neighbors who would not inherit under intestacy generally do not have standing to contest, even if they believe something went wrong. The exact definition of standing varies by state.

The Four Main Grounds for Contesting a Will

Lack of Testamentary Capacity

To make a valid will, the person signing it (the testator) must have been of sound mind at the time of signing. Courts generally interpret this to mean the testator understood: the nature and extent of their property, who their natural heirs were, what a will does, and how those elements fit together into a coherent plan. A diagnosis of dementia, Alzheimer's, or mental illness does not automatically mean a person lacked testamentary capacity — courts look at the specific moment the will was signed. Capacity is a fact-intensive inquiry and one of the most commonly raised — and most difficult to prove — grounds for a will contest.

Undue Influence

Undue influence means someone exerted so much pressure on the testator — through threats, manipulation, isolation, or domination — that the resulting will no longer reflects the testator's own free wishes, but rather the influencer's desires. It is different from ordinary persuasion or family advocacy. Courts look for evidence that the influencer had the opportunity to control the testator, that the testator was vulnerable to that control (due to age, illness, or dependency), and that the will benefited the influencer in ways that are difficult to explain otherwise. Caregivers, new romantic partners, or family members who suddenly become the sole beneficiary late in a testator's illness are common subjects of undue influence claims.

Fraud

Fraud in will contests typically takes two forms. Fraud in the inducement occurs when someone lied to the testator to influence the will's terms — for example, falsely telling a parent that a child had committed a crime or had died. Fraud in the execution occurs when the testator was tricked into signing a document they did not know was a will. Fraud claims require specific evidence that a material misrepresentation occurred and that it affected the will's content.

Improper Execution

Every state has formalities that a will must meet to be valid. Generally, a will must be in writing, signed by the testator, and witnessed by a minimum number of witnesses — typically two — who are present at signing and who sign the will themselves. Some states recognize handwritten (holographic) wills without witness requirements; many do not. Requirements vary by state. If the required formalities were not followed, the will may be declared invalid regardless of the testator's intent. Improper execution is often one of the cleaner grounds to litigate because it turns on objective facts about how the will was signed.

Deadlines: Act Without Delay

Will contests are subject to strict deadlines, and missing them typically bars your claim forever. The deadline begins to run from a triggering event, most commonly:

• When the will is filed with the probate court
• When you receive formal notice that probate has been opened
• When the court admits the will to probate

The time you have varies by state — it can be as short as a few weeks or extend considerably longer, depending on where you are and what type of notice you received. Some states have very short windows that catch people off guard. If you believe you have grounds to challenge a will, consult a licensed probate attorney in the relevant state immediately. Do not wait to see how things unfold.

How a Will Contest Works

A will contest is typically filed as a formal objection during the probate proceeding — in the same probate court handling the estate. The person contesting files a written objection stating the grounds, and the court schedules a hearing or trial.

The burden of proof generally falls on the person contesting the will. You must present evidence — witness testimony, medical records, financial records, prior drafts of the will — to support your claim. The executor and the beneficiaries named in the challenged will typically oppose the contest and defend its validity.

If the court finds in favor of the contestant, it may invalidate the entire will — leaving the estate to be distributed under state intestacy law or under an earlier valid will — or it may invalidate only the affected portion if the challenge is limited in scope. If the contest fails, the will stands and is administered as written.

What Contesting a Will Does Not Mean

Being unhappy with a will's outcome is not a legal ground for a contest. A parent has the right to leave more to one child than another, or to leave everything to a charity and nothing to family. Children generally can be disinherited if the will clearly expresses that intent, though some states have pretermitted heir protections for children who were accidentally omitted. The law protects a testator's right to dispose of property as they choose — as long as they had capacity, were free from undue influence, and followed the required formalities.

No-Contest Clauses

Many wills include a no-contest clause — sometimes called an in terrorem clause — stating that any beneficiary who challenges the will forfeits their inheritance. Whether these clauses are enforceable, and to what extent, varies significantly by state. If you are a named beneficiary considering a contest, ask a licensed attorney in the relevant state whether no-contest clauses are enforced there and what the risk is before you file anything.

What You Can Do Now

• Act immediately. If you believe you have grounds to contest a will, consult a licensed probate attorney in the state where the will is being probated without delay. Deadlines are strict and can be very short.
• Gather evidence. Medical records around the time the will was signed, prior versions of the will, financial records, and people who knew the testator and can speak to their state of mind can all be relevant.
• Understand the cost and risk. Will contests are litigation — they can be expensive and time-consuming, and success is not guaranteed. A licensed attorney can give you a realistic assessment of the strength of your potential claim before you commit to it.
• Check no-contest clauses. If you are a named beneficiary, find out what your state says about no-contest provisions before filing anything — the clause could cost you the inheritance you already have.
• Find out the exact deadline. Ask an attorney when the contest window opened in your situation and how long you have under your state's law.

This article is general legal information, not legal advice. Will contest procedures, standing requirements, grounds, deadlines, and the enforceability of no-contest clauses are all governed by state law and vary significantly from state to state. Consult the probate code for the relevant state or a licensed probate attorney in that state for guidance on your specific situation.