What is the Success Rate of Contesting a Will in the UK?

Is the success rate of contesting a Will in the UK worth it? Contesting a Will isn’t easy, and the process can certainly be challenging. It’s important to recognise that successful contests can be quite rare. However, in some cases where clear grounds are met and evidence is strong, the success rate can be high. 

To learn more about the success rate of contesting a Will in the UK, read on. 

What are the Legal Grounds to Contest a Will?

Challenging a Will in the UK is entirely possible if certain legal grounds are met: 

• Lack of Capacity: The testator (person making the will) lacked mental capacity to understand their actions 
• Invalidity: The Will doesn’t meet the set requirements to be valid 
• Undue Influence or Coercion: The testator was pressured by another person to make changes 
• Fraud or Forgery: The signature on the Will or the Will itself has been forged by someone other than the deceased
• Financial Dependency: Under the Inheritance (Provision for Family and Dependants) Act 1975, individuals who were financially dependent on the deceased at the time of death, but haven't been left enough (or anything at all), can challenge their Will

Can You Contest a Will if You’re Unhappy With it? 

You can challenge a Will, but only if you have valid legal grounds and evidence to support your claim. Simply feeling unhappy or disappointed with the terms isn’t enough. The law requires specific reasons for a challenge, and a solicitor can help you understand whether those grounds exist and how strong your position may be.

What Percentage of Contested Wills are Successful?

There are no official statistics on how many contested Wills succeed, as most disputes are resolved privately before reaching court. What we do know is that Will challenges are becoming more common, with reports suggesting that around 10,000 people a year raise concerns or disputes about a Will.

Success Rate Explained

Success depends entirely on the strength of the legal grounds and the evidence available. With the right legal advice and a well‑prepared case, many people are able to achieve a positive outcome - whether through negotiation, settlement or a court decision.

Is it Worth Contesting a Will? Challenges to Consider 

Losing a loved one is hard enough. When their Will doesn’t reflect what you believe they truly wanted, it can feel confusing, unfair, and deeply upsetting. In those moments, many people ask whether it’s worth contesting a Will - and the answer is yes, if you have genuine concerns and the right legal support behind you.

Contesting a Will can help ensure your loved one’s wishes are respected, but it’s important to understand the challenges involved before deciding how to move forward.

Meeting Legal Grounds

A Will can only be challenged if it falls within recognised legal grounds. If those grounds aren’t met, the claim cannot proceed. Understanding whether your situation qualifies is the first and most important step.

Gathering Strong Evidence 

Even when legal grounds exist, you’ll still need clear evidence to support your case. This can be difficult, especially when events happened behind closed doors or over long periods of time. A solicitor can help identify what evidence is needed and how to obtain it.

Managing Emotions

Disputes over a loved one’s estate can be emotionally draining. Grief, family tensions, and uncertainty often make the process feel overwhelming. Having a supportive legal team can make a significant difference.

Considering the Financial Impact

Any legal dispute carries costs. Before starting the process, it’s important to understand the likely costs involved and whether you feel ready to commit to them.

How to Improve Your Chances of a Successful Will Challenge

Although many Will disputes settle before reaching court, success depends on preparation, evidence, and acting quickly. Here are key steps that can strengthen your position:

Act Promptly

Some claims, such as those under the Inheritance Act, must be brought within six months of the grant of probate. Even where deadlines are longer, acting early helps protect your position.

Ensure You Meet Valid Legal Grounds

Understanding the legal basis for your claim is essential. A solicitor can explain the grounds clearly and help you determine whether your situation qualifies.

Gather Solid Evidence

Medical records, witness statements, emails, and other documents can all help build a strong case. The earlier you start gathering evidence, the better.

Be Open to Alternative Solutions

Not every case ends in court. Mediation, negotiation, or lodging a caveat to pause probate can often lead to fair and practical outcomes without the stress of a full trial.

How to Reduce the Risk of Someone Successfully Contesting Your Will

If you’re planning ahead and want to protect your estate from future disputes, there are steps you can take to reduce the risk of a successful challenge:

Create a Legally Valid Will

A properly drafted Will that meets all legal requirements is the strongest protection against future disputes.

Choose Trusted Executors

Reliable executors can help defend your estate if a challenge arises.

Provide for Financial Dependents

If someone relies on you financially, consider making a reasonable provision for them to reduce the risk of an Inheritance Act claim.

Destroy Old Wills

Keeping only your most recent Will helps avoid confusion and prevents others from relying on outdated versions.

We Can Help You Contest or Defend a Will

Whether you’re thinking about contesting a Will or you’re facing a challenge to a loved one’s estate, you don’t have to navigate it alone.

Contested probate can be complex, emotional, and stressful — but with the right guidance, it becomes far more manageable. At Bell Lamb & Joynson, our specialist contentious probate solicitors have over two decades of experience helping families:

• Contest Wills where something has gone wrong
• Defend estates against unfair or unfounded claims
• Protect loved ones’ wishes
• Find practical, compassionate solutions during difficult times

Speak to Our Supportive Team Today 

If you’re unsure about your next steps, we’re here to listen, guide, and help you make the right decision for you and your family.

Contact our friendly and supportive team today. 

FAQs  

What is the average cost of contesting a Will?

The cost can vary depending on how complex the case is and how far the dispute goes. Some cases settle early, while others require more detailed work. A solicitor can explain the likely costs upfront so you know what to expect.

How likely is it to win when contesting a Will?

Your chances of success depend on the strength of your legal grounds, the quality of the evidence, and the support you have. When those three things line up - clear grounds, solid evidence, and expert guidance, your prospects are much stronger.

Can I contest a Will without legal help?

You can, but it’s much harder to succeed on your own. Will disputes can be legally and emotionally complex, and without specialist support, it’s easy to miss important steps. Getting legal advice gives you a far better chance of achieving the outcome you’re hoping for.

Does working with a solicitor improve the chances of a successful Will challenge?

Yes. A contentious probate solicitor understands the legal tests, the evidence required, and the best way to present your case. Their expertise can make a significant difference to the strength of your claim, or your defence if someone is challenging a Will you’re responsible for.

Still got a question? Contact us!