Contesting a will: who can challenge, and when

Wills & Estates4 November 20256 min read

A will feels final, and usually it is. But the law recognises that a document does not always reflect a fair or fully considered set of wishes, and that a person can be pressured, mistaken, or forgetful of those who depended on them. So in defined circumstances a will can be challenged. This is a delicate area, because a contest arrives at the worst possible time, among grieving people, and often between family. Understanding who can challenge, on what basis, and within what window helps everyone approach it with less heat and more clarity.

Two different kinds of challenge

It helps to separate two things that are often muddled. One is a challenge to the will’s validity, an argument that the document should not stand at all. The other is a claim by a person who was left out or left too little, arguing that adequate provision should have been made for them even though the will is otherwise valid. They involve different grounds, different people, and different remedies, and confusing them is a common early misstep.

Grounds for saying a will is invalid

A will can be attacked as invalid where the person lacked the mental capacity to make it, where they did not know and approve of its contents, where it was not signed and witnessed as the law requires, or where it was procured by undue influence or fraud, genuine coercion, not merely persuasion or a strong-willed relative. These grounds are demanding to prove and turn heavily on evidence: medical records, the circumstances in which the will was made, and the account of those who were there.

Claims by those left without adequate provision

Separately, many jurisdictions allow certain people, commonly a spouse or partner, children, and sometimes others who were dependent on the deceased, to claim that the will (or the intestacy rules) failed to make adequate provision for their proper maintenance. These are not about wrongdoing; they ask whether the outcome is fair given the claimant’s needs and relationship to the deceased. Who qualifies, and what “adequate” means, varies considerably from place to place.

Why the clock matters so much

The single most important practical point is time. Claims against an estate are subject to strict limitation periods, often running from the date of death or the grant of probate, and they can be short. Miss the window and even a strong claim can be lost, while an executor who distributes the estate too quickly can create problems of their own. If you think you may have a claim, or you are an executor facing one, the priority is to get advice before the deadline, not after.

A word on avoiding the fight

Most estate disputes are better resolved by negotiation or mediation than by a contested hearing, which is slow, costly, and corrosive to whatever family relationships remain. The surest protection, though, is upstream: a carefully drafted, current will that anticipates the pressure points, particularly in blended families, prevents far more disputes than it ever causes. Reviewing the basics of your own estate plan is the best insurance against your own will being contested. This article is general information only and is not legal advice; succession law varies by jurisdiction, so seek advice on your specific circumstances promptly.