In England and Wales, challenging a will typically takes between 6 and 18 months if the dispute settles through negotiation or mediation. If the case proceeds to a High Court trial, the process takes between 18 months and 3 years from the initial challenge to a final judgment.
Uncertainty about timelines is one of the most common reasons people delay contacting a solicitor about a will dispute — and delay is one of the most costly mistakes in contentious probate. Time limits apply strictly, and in some cases missing a deadline ends any prospect of a claim. Understanding what the process actually looks like, and how long each stage takes, allows you to make informed decisions rather than putting them off.
The honest answer is that timelines vary significantly depending on how the dispute is resolved. The vast majority of will disputes settle before trial — only around 2% of contested probate cases reach a final High Court hearing. But settling quickly requires early action, good preparation, and usually a willingness to engage with mediation.
Read our complete guide on contesting a will for lack of capacity.
Stage 1: Taking Legal Advice and Initial Investigation (Weeks 1–8)
The process begins with a consultation with a contentious probate solicitor who will assess the strength of your position, identify the relevant legal grounds, and advise on the most appropriate course of action. This stage includes reviewing the will and any earlier versions, obtaining a copy of the grant of probate if issued, and considering whether a caveat needs to be entered urgently.
If the grant of probate has not yet been issued, entering a caveat at the Probate Registry is a critical first step — it prevents the estate from being distributed whilst you investigate. A caveat lasts six months and can be renewed. This stage typically takes two to eight weeks depending on the complexity of the case and how quickly documents can be obtained.
Stage 2: Pre-Action Protocol and Letters of Claim (Weeks 4–16)
Before court proceedings can be issued, parties are expected to follow the Pre-Action Protocol for Inheritance Act Claims and the general practice guidance for contentious probate. This involves exchanging letters of claim and response, setting out the basis of each party’s position, and exploring whether the matter can be resolved without litigation.
This stage also typically involves requesting the solicitor’s file under a Larke v Nugus request, obtaining relevant medical records and financial documents, and in appropriate cases commissioning expert evidence — such as a psychiatric report on the deceased’s mental capacity at the time the will was made.
This stage takes between four and twelve weeks in straightforward cases. In complex cases involving multiple parties, foreign assets, or contested medical evidence, it can take considerably longer.
Stage 3: Mediation (Months 3–9)
Mediation is now effectively mandatory in contentious probate disputes. Following the April 2026 CPR reforms, courts actively penalise parties who unreasonably refuse to engage with alternative dispute resolution. A party who refuses mediation without good reason risks an adverse costs order — meaning they may be required to pay the other side’s legal costs even if they win at trial.
Mediation sessions typically take one to two days, but scheduling and preparing for them can add four to eight weeks to the timeline. If both parties are willing to negotiate in good faith, a resolution can often be reached within a few months.
The statistics are compelling. Around 60–70% of mediated inheritance disputes settle at or shortly after mediation. The financial case is also strong: mediation costs approximately £1,000–£3,000 per party, compared to £40,000–£100,000 or more for a contested High Court trial.
Where mediation succeeds, the settlement terms are recorded in a legally binding document. The entire process from initial instruction to settlement can be as short as three to six months for straightforward cases where both parties engage constructively.
Stage 4: Court Proceedings (Months 6–36+)
If mediation fails or is not appropriate, the case proceeds to the High Court — almost always the Chancery Division. Court proceedings are issued and the case is placed into the court’s case management system.
At the first case management conference, the court sets a directions timetable. This covers the exchange of witness statements, disclosure of documents, filing of expert evidence, and the listing of a trial date. The time from issue to trial is typically 18 months to 3 years for a moderately complex probate dispute — for example, a contested will on grounds of lack of capacity or undue influence. Complex multi-party disputes involving significant estates can take longer.
The main factors affecting the timeline are: the complexity of the legal and factual issues, the number of parties involved, the availability of medical or financial expert evidence, and court listing delays. The UK court system regularly experiences backlogs, and hearing dates can be delayed by six months or more beyond the estimated listing window.
It is worth noting that cases do not have to run all the way to trial. The pre-trial process — disclosure, witness statements, expert reports — creates multiple opportunities for settlement, and many cases that enter the court system settle before a final hearing.
The Time Limits You Cannot Miss
Understanding timelines is not only about how long the process takes — it is also about the deadlines that govern when you can act at all.
Inheritance Act claims: 6 months from grant of probate. Under section 4 of the Inheritance (Provision for Family and Dependants) Act 1975, an application must be issued in the High Court within six months of the date of the grant of probate or letters of administration. This deadline is strict. The court has power to extend it, but extensions are rarely granted and require the applicant to demonstrate compelling reasons. Missing this deadline without court permission is fatal to the claim.
Validity challenges: no fixed statutory limit — but delay is dangerous. There is no statutory time limit for challenging the validity of a will on grounds such as lack of capacity, undue influence, or fraud. However, the court treats unexplained delay as prejudicial, and an unreasonable delay in bringing a claim can result in it being dismissed or the claimant being penalised on costs. The 12-year limitation period under the Limitation Act 1980 applies to some beneficiary claims against an estate.
Caveats: 6 months, renewable. A caveat entered at the Probate Registry lasts six months and must be renewed before expiry if the dispute is still unresolved.
Standstill agreements. In Inheritance Act cases, parties may agree to a standstill agreement to extend deadlines by mutual consent whilst negotiation or mediation takes place. This can protect a claimant’s position without requiring immediate court proceedings, but requires the cooperation of the other side.
What Affects How Long Your Case Takes?
Several practical factors consistently affect timelines in contentious probate cases:
Complexity of the estate. A large estate with multiple properties, business interests, pension assets, or foreign elements will almost always take longer — both to investigate and to resolve — than a simple estate with liquid assets only.
Number of parties. The more people involved in the dispute, the harder it is to coordinate and the more difficult it becomes to reach a negotiated settlement. Multi-party cases often take significantly longer than two-party disputes.
Availability of evidence. If key medical records are incomplete, witnesses are elderly or ill, or documents have been lost, gathering the evidence needed to support a claim takes time and may require court applications for disclosure.
Whether the estate has already been distributed. If assets have been distributed to beneficiaries before a challenge is brought, the process of recovery is considerably more complex and adds both time and cost.
Willingness to engage constructively. This is the single factor most within the parties’ control. Cases where both sides engage in good faith with pre-action correspondence and mediation resolve far more quickly — and far more cheaply — than those where one party stonewalls or refuses to negotiate.
Frequently Asked Questions
What is the very fastest a will dispute can be resolved?
Where the facts are clear, the parties cooperate, and mediation is agreed upon early, a will dispute can settle within three to four months of initial instruction. This typically involves a straightforward Inheritance Act claim or a validity challenge where both sides recognise the strength of the evidence and agree to negotiate without litigation. Cases that settle this quickly are the exception — but they are not rare, particularly where both parties have taken early legal advice and approached the dispute pragmatically.
Does contesting a will delay the distribution of the estate?
Yes, in most cases. Where a caveat is entered, the grant of probate cannot be issued until the caveat is withdrawn or the dispute is resolved. Where court proceedings are issued after probate has been granted, the executor is typically advised not to distribute the estate until the claim is resolved or the court makes an order permitting distribution. In urgent cases — for example, where estate assets are at risk of deteriorating or being wasted — it is possible to apply to the court for an order permitting partial distribution or preserving specific assets.
Can I speed up the process by being more flexible about the outcome?
Significantly, yes. The single most effective way to shorten a will dispute is to approach it with a realistic assessment of the likely outcome and a willingness to accept a negotiated settlement rather than insisting on every available legal remedy. A claimant who enters mediation with a defined range of acceptable outcomes and a genuine willingness to compromise will almost always reach resolution faster — and at lower cost — than one who treats the process as a fight to the last penny. A specialist contentious probate solicitor can help you assess what outcome is realistic and what a court is likely to award, giving you the informed basis you need to negotiate effectively.
Conclusion
Contesting a will in England and Wales is not a quick process — but it is rarely as slow as people fear. The majority of disputes resolve within 12 to 18 months, and many settle considerably faster when both parties engage constructively. What makes the difference is taking specialist legal advice at the earliest possible stage, understanding the time limits that apply to your specific claim, and approaching the dispute with clear objectives rather than open-ended litigation.
Contest a Will Today has more than 30 years of experience resolving inheritance disputes across England and Wales, including cases that have settled swiftly through mediation and complex multi-party litigation that has proceeded to trial. If you are concerned about a will or an estate and want to understand your options — and your deadlines — call us on 0333 800 2929 for a free initial conversation, or visit contestawilltoday.com.
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Meet Our Founder
With over 30 years of experience across civil litigation and dispute resolution, DS Bal brings a deep, broad understanding of the legal process to every case. His background spans complex disputes involving individuals, families, and estates. LinkedIn
