Contesting a will in the UK can feel urgent and personal, especially when a family is grieving and the estate is already moving through probate. A disappointing inheritance is not, by itself, enough to overturn a will. The key question is whether the document is legally valid, reflects the deceased’s genuine intentions, or leaves an eligible person with a separate claim for financial provision.
The rules below mainly apply to England and Wales. Scotland and Northern Ireland have different succession and probate systems, so advice must be obtained under the correct jurisdiction.
What does contesting a will mean?
The phrase covers several legal routes. A probate claim challenges the validity of the will itself. If it succeeds, an earlier valid will may take effect; if none exists, the estate may pass under the intestacy rules.
An inheritance act claim is different. It normally accepts that the will is valid but argues that the estate failed to make reasonable financial provision for an eligible applicant. Rectification is another route, used where a clerical error or failure to understand instructions means the wording does not carry out the deceased’s intentions.
Legal grounds for challenging a will
The will was not properly executed
In England and Wales, a will generally must be in writing, signed with the intention of giving effect to it, and witnessed by two people present at the same time. Each witness must sign or acknowledge their signature in the testator’s presence. A document that fails these formal requirements may be invalid.
The person lacked testamentary capacity
A person making a will must understand what it does, have a sufficient grasp of the property being disposed of, appreciate those who may reasonably expect consideration, and not be affected by a mental disorder or delusion that influences the gifts. Dementia does not automatically invalidate a will; capacity is assessed at the relevant time.
Medical records, solicitor notes, witness evidence and the complexity of the will can all matter. A sudden departure from a long-standing estate plan may raise questions, but it is not proof on its own.
Lack of knowledge and approval
The testator must know and approve the document’s contents. Concerns may arise where the person could not read the will, it contained unexpected provisions, or a major beneficiary was heavily involved in its preparation.
The court considers the whole picture, including how instructions were taken, whether the will was explained and why changes were made. Unusual gifts are not automatically invalid, but suspicious circumstances may require a convincing explanation.
Undue influence, fraud or forgery
An undue influence will claim alleges coercion so serious that the document reflects another person’s wishes rather than the testator’s free decision. Persuasion or family pressure is not necessarily enough; the evidence must show that independent choice was overborne.
Fraud may involve deliberate deception that caused a change, while forgery concerns a document or signature that is not genuine. These are serious allegations requiring detailed facts, not speculation based only on an unexpected inheritance.
The wording does not reflect the instructions
Rectification may be available where a clerical error or failure to understand instructions caused the will to be expressed incorrectly. It is not a way to rewrite a will merely because the outcome seems unfair.
Who can contest a will?
For a validity challenge, the claimant normally needs a genuine interest in the estate, such as an entitlement under an earlier will or intestacy if the disputed will is rejected.
Eligibility for an inheritance act claim is more specific. Potential applicants include a spouse or civil partner, certain former spouses or civil partners, a qualifying cohabitant, a child, someone treated as a child of the family, or a person maintained by the deceased. Eligibility does not guarantee success. The court considers financial needs, resources, obligations, the estate’s size and the relationship with the deceased.
Time limits for contesting a will UK
There is no single deadline for every type of will dispute, which makes early advice essential.
An inheritance act claim should normally be issued within six months from the date the grant of representation is first taken out. A court can permit a late claim, but permission is discretionary and should never be assumed.
An application to rectify a will also normally has a six-month period from the first grant of representation, unless the court allows a later application.
A validity challenge does not operate under the same universal six-month rule. However, delay can weaken evidence, allow the estate to be distributed and create additional limitation issues where property, trusts, fraud or related civil claims are involved.
If probate has not been granted, an interested person may consider entering a caveat. It stops a grant from being issued for six months and can be extended. A caveat should not be used simply to pressure executors or delay administration, because an unjustified caveat can lead to court action and costs.
What to do when a will dispute begins
First identify the legal basis of the concern. Feeling excluded is different from alleging invalid execution, lack of capacity or undue influence. Evidence may include the disputed will, earlier wills, correspondence, medical records, drafting notes and information about the estate.
A contentious probate solicitor may seek documents and explanations before proceedings are issued. Negotiation or mediation can sometimes resolve the dispute while preserving more of the estate, but discussions must not cause a statutory deadline to be missed.
Costs also require care. It is unsafe to assume the estate will pay everyone’s legal fees. The court has discretion and may order an unsuccessful party to pay a substantial share of the other side’s costs.
Frequently asked questions
Can you contest a will because it is unfair?
Not simply because the gifts are unequal or disappointing. You usually need a recognised ground affecting validity or an eligible claim for reasonable financial provision.
Can a will be challenged after probate is granted?
Yes, in some circumstances. A court can revoke a grant, and certain claims can be brought after probate, but deadlines and estate distribution make prompt action important.
How long does a caveat last?
In England and Wales, a caveat initially lasts six months. It can be extended under the required procedure, although the probate applicant may challenge it.
What happens if a will is declared invalid?
The estate will usually be administered under the most recent earlier valid will. If none exists, the intestacy rules determine who inherits.
Conclusion
Contesting a will UK is not one process. A validity claim, inheritance act claim and rectification application have different tests, evidence requirements and deadlines. The strongest first step is to identify the correct route, preserve evidence and act before the estate is distributed. Early specialist advice can protect a genuine claim while helping families avoid litigation where the evidence does not support a challenge.