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Iowa Will Contests
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Iowa Will Contests

How to contest a will in Iowa: the grounds, who has standing under section 633.308, the District Court process, and the deadline to file under section 633.309.

By Settled Editorial

To contest a will in Iowa, an interested person files a written petition in the District Court that admitted the will and states a legal ground for setting it aside: lack of testamentary capacity, undue influence, fraud, duress, or a signing that broke Iowa's execution rules. The window is short. You must act within the later of four months after the second published notice of probate or one month after that notice is mailed to you. (See Iowa Code 633.308 and Iowa Code 633.309.)

Most Iowa wills move through probate with no challenge at all. A contest is not a way to reargue how someone chose to split their property, and disappointment is not a ground. But when the facts raise real concern, a caregiver who showed up late and took most of the estate, a signing during serious illness, or a signature that looks wrong, a contest may be the right path. This guide covers the grounds, who has standing, where and when you file, no-contest clauses, and what the process involves.

A contest often turns on whether Iowa's signing rules were met, so read this page next to the Iowa will requirements guide, which sets out valid execution. If a challenge succeeds and no earlier valid will exists, the estate passes under the Iowa intestate succession guide.

What a Will Contest Is (and Is Not)

A will contest asks the court to declare that the will, or part of it, is invalid. If the challenge wins, the admitted will is set aside, and the estate passes either under an earlier valid will or, when there is none, under Iowa's intestacy rules. A contest is the wrong tool when the real complaint is that you expected more, you dislike the split, or the executor is handling the estate poorly. That last problem belongs in an objection to the executor or to the accounting filed with the court, not in an attack on the will itself. For the job the executor takes on once a will is admitted, see the Iowa executor duties guide.

Iowa gives you two moments to act. You can object before the will is admitted, or you can move to set the will aside after it is admitted. Both routes run in the District Court, and each has its own timing, which the sections below spell out.

Who Can Contest a Will in Iowa

Only an interested person can bring a contest. Iowa Code 633.308 lets any interested person petition to set aside the probate of a will, and the petition has to state the grounds for the challenge. An interested person is someone with a financial stake, meaning a person who would receive more if the will were thrown out. (Source: Iowa Code 633.308.) The most common contestants are:

  • Heirs at law. People who would inherit under Iowa's intestacy statute if there were no valid will. Iowa ties the class of heirs entitled to notice back to who would take an intestate share, so a spouse, children, and other close kin usually qualify.
  • Beneficiaries under an earlier will. If a prior will left you more than the current one, you have a stake in setting the later will aside.
  • Beneficiaries named in the challenged will who fared better under an earlier document.

Friends, distant relatives who would not inherit under intestacy, and groups named in no version of the will generally lack standing. The test is simple: would you be better off financially if the will were declared invalid? If not, the court will not hear the challenge. A surviving spouse also holds a separate right to claim an elective share that overrides the will, which is a different remedy from a contest; see the Iowa surviving spouse rights guide for that path.

The Grounds for Contesting an Iowa Will

Iowa allows a handful of grounds for invalidating a will, and the person bringing the contest states them in the petition. A will admitted to probate is presumed valid, and the contestant carries the burden of overcoming that presumption with evidence. How that burden is split can shift with the ground you raise, so confirm the standard for your facts with a licensed Iowa attorney. Suspicion alone is not enough.

Lack of Testamentary Capacity

Iowa Code 633.264 lets any person of full age and sound mind dispose of property by will. A challenge on this ground argues the maker lacked a sound mind at the moment of signing. (Source: Iowa Code 633.264.) Sound mind means the testator understood, when the will was signed, that they were making a will, the general nature of what they owned, and the people who would normally inherit from them. Capacity is measured at the exact time of signing. A dementia diagnosis does not by itself prove incapacity, because a person with cognitive decline can sign validly during a lucid interval. Contestants usually build this ground with medical records from around the signing date, testimony from doctors and caregivers, and observations from people who saw the testator near that time.

Undue Influence

Undue influence is the most commonly raised ground and one of the hardest to prove. It applies when someone in a position of trust used pressure that overpowered the testator's free will, so the will reflects the influencer's wishes rather than the testator's own. Ordinary persuasion, even forceful persuasion, does not count. Courts look for a confidential relationship between the testator and the beneficiary, activity by that beneficiary in getting the will made, and a result that favors them. Common red flags include a caregiver or new companion who appeared shortly before the will changed, a testator cut off from family, an unexplained break from an earlier plan, and a beneficiary who picked the drafting attorney or sat in on the signing.

Fraud or Forgery

Fraud means the testator was deliberately deceived in a way that changed the will. Two forms come up. Fraud in the execution tricks the testator about what the document is, such as telling them they are signing a power of attorney when it is a will. Fraud in the inducement feeds the testator a lie that changes a gift, such as a false claim that a child stole from them. Forgery is a separate claim that the signature is not the testator's or that the document was made up, and it usually calls for a forensic document examiner to compare the disputed signature against known samples.

Improper Execution

An Iowa will is valid only when it was signed the way Iowa Code 633.279 requires: in writing, signed by the testator or by another person at the testator's direction and in the testator's presence, declared by the testator to be their will, and signed by two competent witnesses in the presence of the testator and of each other. (Source: Iowa Code 633.279.) A contest on this ground argues that a formality was missed: only one witness signed, the witnesses were not together, a witness never actually saw the signing, or a handwritten page with no witnesses was passed off as a will. Iowa has no holographic (unwitnessed handwritten) will, so an execution defect is often easier to prove than a mental-state ground because it rests on facts rather than the testator's state of mind. The full signing rules sit in the Iowa will requirements guide.

A Later Will or Revocation

A will can also be attacked as no longer operative because the testator revoked it. Iowa Code 633.284 says a will is revoked only by canceling or destroying it, by the testator or at the testator's direction, with the intent to revoke, or by signing a later will. (Source: Iowa Code 633.284.) If a valid later will or codicil exists, the earlier admitted document should not govern. A divorce is a related trigger, because Iowa revokes will provisions in favor of a former spouse by operation of law.

Tortious Interference With Inheritance

Iowa also lets a party claim the will was procured, in whole or in part, by tortious interference with inheritance, meaning a third party wrongfully steered the estate away from an expected heir. Under a 2023 change to Iowa Code 633.309, that claim must be joined with a timely will contest when the party had notice of the probate, and it runs on the same clock as the contest. (Source: Iowa Code 633.309.) Raise it with the contest, not on its own, or you can lose it.

Where and When You File

Iowa has no separate "Probate Court." Estates open, run, and close as a docket of the District Court for the county where the decedent lived, and the Clerk of the District Court keeps the file. A contest is brought in the same District Court that admitted the will. Iowa Code 633.310 also lets an interested person object before the will is admitted, and when that objection is filed, the will is not admitted to probate until the court decides whether the document is the decedent's last will. (Source: Iowa Code 633.310.)

Timing is where contests are won or lost. Iowa Code 633.309 says an action to contest or set aside the probate of a will must be commenced in the court that admitted the will within the later to occur of four months from the date of the second publication of the notice of admission or one month after that notice is mailed to all heirs and devisees whose identities are reasonably ascertainable. After that, the right is forever barred. The clock is tied to the notice the executor sends under Iowa Code 633.309 and 633.304: the executor publishes the notice of probate once a week for two weeks and mails it to the surviving spouse, each heir, and each devisee at their last known address, and the notice itself states the set-aside deadline. (Source: Iowa Code 633.309 and Iowa Code 633.304.) Confirm the exact dates on the notice in your estate with a licensed Iowa attorney before you rely on any deadline, and do not wait, because building a contest takes time to gather records, find witnesses, and retain an expert. For how a dispute stretches the estate calendar, see the Iowa probate timeline guide.

No-Contest Clauses in Iowa

Some wills include a no-contest clause, also called an in terrorem clause, that tries to disinherit any beneficiary who challenges the will. A typical version reads: if any beneficiary contests this will, that person's gift is forfeited. The point is to scare beneficiaries out of court. The general rule across many states enforces such a clause but declines to apply it against a challenger who had a real, good-faith basis for the contest rather than a fishing expedition. That good-faith exception is common but not uniform, so confirm how an Iowa court would treat a no-contest clause on your facts with a licensed Iowa attorney before you file. The stakes rise when a clause is present, because a beneficiary who challenges without a solid basis can lose a gift they would otherwise have kept.

How a Contest Moves Through Court

Iowa Code 633.311 makes an action to object to a will, or to set one aside, triable in the probate side of the District Court as an action at law, and the rules of civil procedure apply, including the right to demand a jury trial. (Source: Iowa Code 633.311.) Iowa Code 633.312 then requires that every known interested party who does not join the contestants as a plaintiff be brought in as a defendant, and the court adds more parties as they become known. (Source: Iowa Code 633.312.) Here is the path a contest usually follows:

  1. Talk with a probate litigator. A contest is litigation, not routine estate paperwork. Find an Iowa attorney who handles contested probate and have them review standing, grounds, and the deadline first.
  2. Confirm the will was admitted. Identify the District Court and the Clerk of the District Court for the correct county, confirm the will was admitted, and pin down the second-publication and mailing dates that set your deadline.
  3. File the petition. The petition to set aside is filed in the District Court that admitted the will, within the Iowa Code 633.309 window, and it states the grounds.
  4. Join the parties. All known interested parties are joined, the contestants as plaintiffs and everyone else as defendants, and served under the rules of civil procedure.
  5. Discovery. Both sides exchange evidence: depositions of the drafting attorney, the witnesses, caregivers, and family; subpoenas for medical and financial records; and expert reports on capacity or handwriting.
  6. Mediation and settlement. Many contests settle. A negotiated split often costs far less than a trial and lets the family keep some control over the result.
  7. Trial. If the case does not settle, it goes to trial, where a judge or a jury decides whether the will stands.

What a Contest Costs and Whether It Is Worth It

Will contests run slow and expensive. Even a fairly clean case can take a year or more and reach well into five figures in attorney fees, plus costs for experts, depositions, and records, and relatives often testify under oath about a loved one's mental state and private affairs. Before you file, weigh a few questions honestly:

  • Do you have standing? Would you actually inherit more if the will were set aside?
  • Do you have a real ground? Is there evidence of incapacity, undue influence, fraud, forgery, or a signing defect, and not just disappointment?
  • Is there a no-contest clause, and how strong is your good-faith basis?
  • Is the likely recovery worth the cost and the family strain, or could mediation resolve it faster and for less?

If the answers point to a genuine claim, move quickly. The deadline after the will is admitted is unforgiving, and the evidence is easiest to gather early. For the full path an estate takes through the District Court, start at the Iowa probate guide or the Iowa county probate directory.

Related Iowa Guides

This guide is general information about contesting a will in Iowa. A will contest is court litigation on a short clock, so confirm your grounds, your standing, and the exact deadline on the probate notice with the Clerk of the District Court or a licensed Iowa attorney before you file.

Sources:

It is not legal advice.

Information current as of July 15, 2026

Settled Estate is not a law firm, and this content is for informational purposes only and does not constitute legal advice. Probate laws and procedures in Iowa can change. Consult with a qualified attorney for advice specific to your situation. Full disclaimer.

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