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Contesting a Will UK: Grounds & Court Process (2026)

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Part ofWill Disputes

Written by Brad Askew Solicitor (non-practising)
Brad is on the roll of solicitors of England & Wales but does not hold a practising certificate and does not provide legal advice.
Updated June 2026 · England & Wales
Few family disputes are as painful or as complicated as a fight over someone's will. When a loved one dies and the terms of their will feel wrong, unfair, or simply out of character, the people left behind are often unsure what they can actually do about it. This guide walks through how will disputes work in England and Wales, the legal grounds that can support a challenge, and the practical steps involved in bringing a claim through the courts. I have written it for people who suspect something is not right with a will they are named in, left out of, or acting as executor for, and who want to understand their options before they commit to a formal fight.

What this document is

A will dispute is a contested probate matter where one or more people ask the court to decide that a will should not stand, or that it should be interpreted differently, or that reasonable financial provision has not been made for someone who depended on the deceased. These claims sit in the High Court, usually in the Chancery Division or the Family Division depending on the type of claim, and they are governed by a mixture of common law, the Wills Act 1837, the Administration of Justice Act 1982, and the Inheritance (Provision for Family and Dependants) Act 1975.

Disputes can arise before probate is granted or afterwards, and the timing matters because different procedural tools apply at different stages. Some challenges attack the validity of the will itself. Others accept the will is valid but argue the outcome is unjust for a particular family member or dependant.

Knowing which category your concern falls into is the first step towards understanding what you can realistically ask a court to do.

How to use this document

  1. Work out what you are actually challenging. Before anything else, be clear about whether you are attacking the validity of the will, asking for it to be interpreted, or claiming that reasonable provision was not made for you as a family member or dependant. These are legally distinct routes with different evidence and different time limits, and confusing them wastes money and momentum early on.
  2. Gather the evidence while it is still fresh. Start collecting medical records, GP notes, care home logs, witness accounts, earlier wills, solicitor files, and any correspondence that shows what the testator was thinking or how they were behaving around the time the will was signed. Memories fade quickly and documents get destroyed, so early preservation of evidence often makes or breaks a case years later.
  3. Enter a caveat at the Probate Registry if needed. If probate has not yet been granted and you want to prevent the estate being distributed while you investigate, you can enter a caveat which lasts for six months and can be renewed. This is a protective step rather than a claim in itself, but it buys you time to take proper guidance and decide whether to issue proceedings.
  4. Attempt resolution before issuing court proceedings. The courts expect parties to engage seriously with negotiation, mediation, or a roundtable meeting before running up legal costs at trial. Many contentious probate disputes settle this way, and judges can penalise a party on costs if they refused reasonable attempts at alternative dispute resolution without a good reason.
  5. Issue proceedings in the appropriate court. If settlement is not possible, the formal claim is issued in the High Court under the relevant civil procedure rules, with witness statements, disclosure, expert evidence on capacity where needed, and ultimately a trial. The losing party usually pays a significant portion of the winner's costs, so the decision to issue should be made with a clear head about the financial exposure.

Common questions

If you're dealing with this kind of situation, speak to an experienced legal adviser who can walk you through it — from £89.

Common questions

Q Who is allowed to contest a will in England and Wales?
The people who can bring a challenge usually fall into one of a few groups: beneficiaries named in the current or an earlier will, close family members who would inherit under the intestacy rules if the will failed, and certain dependants who can claim under the Inheritance (Provision for Family and Dependants) Act 1975. Creditors of the estate may also have standing in limited circumstances. Whether you personally qualify depends on your relationship to the deceased and what you are asking the court to decide.
Q How long do I have to bring a claim?
Time limits vary depending on the type of claim. A claim under the Inheritance Act 1975 must generally be brought within six months of the grant of probate, though the court has discretion to extend this in limited cases. Challenges to validity on grounds like lack of capacity or undue influence are not subject to the same strict six-month window but should still be raised promptly, because delay can weaken evidence and prejudice other beneficiaries who have relied on the will.
Q What is a caveat and when should I enter one?
A caveat is a formal notice lodged at the Probate Registry that prevents a grant of probate being issued without you being told first. It is used when you have concerns about the will's validity and need time to investigate before the estate is distributed. A caveat lasts for six months and can be extended. It is not a substitute for a full legal claim but it is often a sensible early protective step.
Q Do I have to go to court to resolve a will dispute?
No, and in most cases you should try not to. The courts actively encourage mediation and other forms of alternative dispute resolution, and a large proportion of contentious probate matters settle before trial. Mediation can be faster, cheaper, more private, and better for preserving family relationships than a contested hearing. Court should generally be treated as a last resort once other routes have been exhausted or refused.
Q How much does it cost to challenge a will?
Costs vary enormously depending on the complexity, the value of the estate, whether expert evidence is needed, and how far the dispute runs. Straightforward cases that settle early may cost relatively little, while a full High Court trial can run into tens of thousands of pounds or more. The losing party typically pays a significant share of the winner's costs, so the financial risk cuts both ways and should be weighed carefully before issuing proceedings.
Q What happens if a will is declared invalid?
If the court finds the will is invalid, the estate is usually distributed under an earlier valid will if one exists. If there is no earlier valid will, the estate passes under the intestacy rules, which set out a fixed order of who inherits based on family relationships. This means the outcome of a successful challenge is not always what the claimant expected, which is another reason to think carefully about the likely result before issuing.
Q Can I contest a will if I was simply left out?
Being left out, on its own, is not a ground to invalidate a will. English law gives people broad freedom to decide who inherits from them. However, if you are a spouse, civil partner, former spouse, child, or someone who was being maintained by the deceased, you may be able to claim under the Inheritance Act 1975 on the basis that reasonable financial provision was not made for you. This is a separate route from attacking the will's validity.
If you're dealing with this kind of situation, speak to an experienced legal adviser who can walk you through it — from £89.

Sources

This guide is based on primary UK law and official guidance.

Brad Askew, Solicitor (non-practising)

Written & reviewed by

Brad Askew Solicitor (non-practising)

Brad is on the roll of solicitors of England & Wales but does not hold a practising certificate and does not provide legal advice. LegalDocuments.co.uk is not a law firm and does not provide regulated legal advice.

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Legal disclaimer
This article is for general information only. It is a tool to help you find your way — not legal advice, and not a substitute for speaking to a qualified adviser about your situation.