Can You Contest a Will? Grounds, Process, and Realistic Odds

Who Can Contest a Will: Legal Standing

Not everyone who disagrees with a will can challenge it. Courts require "legal standing" — meaning you have a direct financial interest in the outcome. Without standing, your case will be dismissed before it begins.

People who typically have standing include:

• Named beneficiaries in the current will
• Heirs-at-law — people who would inherit under state intestacy laws if the will were thrown out (typically a spouse, children, or other close relatives)
• Beneficiaries named in a prior version of the will who stand to receive more if the later will is invalid
• Creditors of the estate in limited circumstances

If you were not in the will and would not inherit anything under state intestacy laws, you likely do not have standing. A family friend, a distant relative, or someone who expected to be in the will but never was may not qualify.

Spouses occupy a special category. In most states, a surviving spouse has a statutory "elective share" right — typically one-third to one-half of the estate — regardless of what the will says. This is a separate protection that does not require a will contest. If the will leaves a spouse less than their elective share, the remedy is claiming that share, not contesting the document.

The Four Legal Grounds for Contesting a Will

Courts recognize four categories of argument that can invalidate a will. Each requires evidence — the burden of proof is on the person contesting, not on the estate to prove the will is valid.

1. Lack of testamentary capacity

The person signing the will must have been of "sound mind" at the time of signing. Legally, that means they understood what a will is, what property they owned, who their natural heirs are, and how the will would distribute that property. They do not need to have been in perfect health or memory.

Dementia, severe mental illness, or cognitive impairment can form the basis of a capacity challenge — but only if the condition was severe enough to affect understanding at the specific moment of signing. A person with early-stage dementia may still have legal capacity on a good day. Courts and juries look at medical records, testimony from the signing witnesses, and accounts from people who interacted with the person near the time of signing.

2. Undue influence

Undue influence means someone pressured, manipulated, or coerced the person into making or changing a will in a way that substituted that person's wishes for the testator's own. This is the most commonly alleged ground and one of the hardest to prove.

Evidence of undue influence typically involves a pattern: the influencer had a close relationship with the person and control over their daily life; isolated the person from family and friends; was present during the will signing; and received an unusually large share compared to previous wills or family expectations.

Undue influence does not mean the person was manipulated into leaving someone more than they would have otherwise. Courts look for whether the person's free will was overridden. A caregiver who received a large inheritance is not automatically evidence of undue influence.

3. Fraud or forgery

Fraud in the will context means the person was deceived about what they were signing (for example, told it was a different document) or deceived about facts that led them to change their estate plan. Forgery means the signature is not the person's.

Forgery cases typically require handwriting experts and forensic document examination. Fraud cases often rely on circumstantial evidence about who had access to the person and what they were told. Both are serious and relatively rare compared to capacity and undue influence claims.

4. Improper execution

Every state has specific formal requirements for a valid will: number of witnesses, their age and independence, whether the will must be notarized, and how the signature must be witnessed. If these requirements were not followed, the will may be invalid regardless of whether the person intended it.

Improper execution claims often arise with homemade wills. A handwritten will (holographic will) may be valid in some states and invalid in others. A typed will witnessed by only one person is invalid in states requiring two. Courts sometimes apply a harmless error doctrine to overlook minor technical defects — but this is not universal.

For a fuller picture of how a valid will works and what the signing requirements are, see our overview of wills.

How to Contest a Will: The Process

Contesting a will happens inside the probate process. Most states do not allow you to challenge a will before it has been filed with the court. Once the executor files the will and petitions for probate, the clock starts.

Step 1: Consult an attorney immediately

Will contests are not DIY matters. You need a probate litigation attorney — specifically someone who handles contested matters, not just routine estate administration. Most offer a free or low-cost initial consultation. The attorney will assess whether you have standing, which grounds are viable, and what evidence would be needed.

Step 2: File within the deadline

State deadlines range from 30 days to several years depending on the ground and when the will was admitted to probate. Most states give 3 to 6 months. Missing the deadline is almost always fatal — courts are strict about it. Once you decide to contest, act quickly.

Step 3: Discovery and evidence gathering

After filing, both sides exchange evidence through formal discovery. This may include the person's medical records, financial records, communications with the attorney who drafted the will, testimony from the signing witnesses, and depositions of people who were around the person near the end of life. This phase alone can take 6 to 18 months.

Step 4: Settlement or trial

The majority of will contests settle before trial. Settlement might mean a revised distribution, payment to the contestant, or some other negotiated outcome. If no settlement is reached, the matter goes to a jury or judge, which can add years to the process.

During the contest, probate is typically paused — assets cannot be distributed until the dispute is resolved. This creates pressure on all parties to reach a settlement.

How Long Does a Will Contest Take?

Simple contested cases that settle relatively early may resolve in 6 to 12 months. Cases that proceed to trial typically take 2 to 5 years. High-value estates with multiple claimants, complex family dynamics, or significant medical evidence can take longer.

The standard probate timeline is already 6 to 18 months in most states. A contested probate can add years on top of that. Any family member expecting to receive inheritance should understand that contesting a will means the estate is essentially frozen until resolution.

How Much Does It Cost to Contest a Will?

Will contests are among the most expensive legal matters in estate law. Common cost ranges:

• Initial consultation and evaluation: $0–$500
• Filing and early litigation through discovery: $10,000–$30,000
• Full trial: $50,000–$150,000 or more, depending on complexity

Many probate litigation attorneys handle will contests on contingency — they take a percentage of what you recover rather than billing hourly. Others use hybrid arrangements. Make sure you understand the fee structure before proceeding.

Keep in mind that attorney's fees may come from the estate if you are the executor defending the will, or from your own pocket if you are the contestant. In some states, a losing contestant can be required to pay the estate's attorney fees. Ask about this risk up front.

For general attorney cost context, see probate lawyer costs by state. Will contest fees are typically higher than routine probate fees.

Realistic Odds: Most Contests Don't Succeed at Trial

Comprehensive data on will contest outcomes is limited, but the broad consensus among probate attorneys is that most will contests settle before trial, and most that go to trial do not result in the will being entirely thrown out.

This is not because judges favor wills over challengers. It is because the legal standards are demanding. Courts require clear evidence — not suspicion or family feeling — that one of the four grounds was met. A general sense that the distribution was unfair, that a caregiver had too much influence, or that the person "wasn't themselves at the end" is not enough without medical records, witness testimony, or documentary evidence to support it.

The most successful contests tend to involve: a sudden, unexplained change from a longtime estate plan made close to death; medical records documenting severe cognitive decline at the time of signing; isolation of the person from family by a single individual who then received most of the estate; or a will with technical defects in execution.

Is Contesting a Will Worth It?

That depends on three things: the value of what you stand to gain, the strength of your evidence, and whether you can afford to lose.

Contesting makes sense when the estate is large enough that your potential gain significantly exceeds the cost of litigation, you have specific, documentable evidence supporting at least one legal ground, and you have consulted a probate litigation attorney who believes the case has merit.

Contesting rarely makes sense when the estate is small, the only evidence is family feeling that the distribution was unfair, you have no access to medical records or witness support, or you are motivated primarily by anger rather than a genuine belief the will is invalid.

There is also a human cost. Will contests damage family relationships, sometimes permanently. Any family members on the other side of the dispute are likely receiving legal notice and being deposed. Consider whether you can live with that outcome regardless of how the case resolves.

If you are unsure whether you need formal legal help or what to do first, see Do You Need a Probate Lawyer? for guidance on when an attorney is essential versus optional.

Frequently Asked Questions

What are the legal grounds for contesting a will?

Courts recognize four main grounds: lack of testamentary capacity (not of sound mind when signing), undue influence (someone pressured them), fraud or forgery (the will was faked or the person was deceived), and improper execution (the will was not signed or witnessed correctly under state law). Unhappiness with the distribution is not a ground on its own.

Who has the right to contest a will?

Only people with legal standing can contest a will. Standing means you have a direct financial interest — you are named in the will, you would inherit under intestacy law if the will is thrown out, or you were named in a prior version of the will. People with no financial stake in the outcome have no standing, regardless of their relationship to the deceased.

How long do I have to contest a will?

Deadlines vary by state. Most states allow 30 days to 6 months after the will is admitted to probate. A few states allow longer periods for fraud claims. Missing the deadline is almost always fatal to the claim. If you suspect a problem, consult a probate litigation attorney immediately after the will is filed.

What happens if you win a will contest?

If the court invalidates the will, the estate passes under an earlier valid will or — if no valid will exists — under the state's intestacy laws. Winning does not guarantee you receive anything; it depends on what the prior will said or who qualifies as an heir under intestacy.

Can you contest a will if you were left out?

Being left out of a will is not itself a ground to contest it. You must have legal standing and a recognized legal ground. A parent is free to leave a child nothing, and courts will not overturn a will simply because an heir feels the distribution was unfair. The exception is a surviving spouse, who has separate statutory rights in most states regardless of the will.

How much does it cost to contest a will?

Will contests are expensive. Attorney fees typically run $10,000 to $30,000 through the discovery phase, and $50,000 to $150,000 or more if the case goes to trial. Many attorneys handle contests on contingency or hybrid arrangements. In some states, a losing contestant may be required to pay the estate's legal fees — ask your attorney about this risk before filing.