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Contesting Wills in UK 2026

Published 17 July 2026 · LitigaForge AI Editorial Team

Learn how to contest a will in UK 2026 due to undue influence, lack of capacity, and Inheritance Act claims

Contesting Wills in UK 2026

If you’re considering contesting a will in the UK, it’s essential to understand the grounds for contesting, including undue influence, lack of capacity, and Inheritance Act claims. This comprehensive guide will walk you through the process, highlighting key laws, timelines, and practical steps to help you navigate the complex process of contesting a will in the UK in 2026.

Grounds for Contesting a Will

Under UK law, specifically the Wills Act 1837, a will can be contested on several grounds, including undue influence, lack of capacity, and lack of proper execution. Undue influence, as defined in the case of Williams v Williams (1963), occurs when a testator is coerced or manipulated into making a will that does not reflect their true intentions. Lack of capacity, as outlined in the Mental Capacity Act 2005, refers to situations where the testator did not have the mental capacity to make a valid will. The Inheritance (Provision for Family and Dependants) Act 1975 also provides a basis for contesting a will, allowing certain individuals to claim reasonable financial provision from the estate. To contest a will on these grounds, it’s crucial to gather evidence and seek professional advice from a solicitor.

Key takeaway: To contest a will, you must establish one of the recognized grounds, such as undue influence, lack of capacity, or a claim under the Inheritance Act.

Undue Influence Claims

Undue influence claims are often challenging to prove, as they require demonstrating that the testator was subjected to coercion or manipulation. The court will consider factors such as the testator’s vulnerability, the influencer’s opportunities to exert influence, and any suspicious circumstances surrounding the will. In the case of Edwards v Edwards (2008), the court established that undue influence can be presumed if the testator was in a relationship of trust with the influencer. To bring an undue influence claim, you should gather evidence of the testator’s vulnerability, the influencer’s actions, and any other relevant circumstances. It’s essential to seek professional advice from a solicitor experienced in contesting wills to help you build a strong case.

Key takeaway: To succeed in an undue influence claim, you must provide evidence of the testator’s vulnerability and the influencer’s manipulation.

Lack of Capacity Claims

Lack of capacity claims require demonstrating that the testator did not have the mental capacity to make a valid will. The Mental Capacity Act 2005 provides a framework for assessing capacity, which involves evaluating the testator’s ability to understand, retain, and weigh relevant information. In the case of Walker v Walker (2014), the court emphasized the importance of medical evidence in establishing lack of capacity. To bring a lack of capacity claim, you should gather medical evidence, witness statements, and other relevant documentation to support your case. It’s crucial to seek professional advice from a solicitor experienced in contesting wills to help you navigate the complex process.

Key takeaway: To establish lack of capacity, you must provide medical evidence and witness statements to support your claim.

Inheritance Act Claims

The Inheritance (Provision for Family and Dependants) Act 1975 allows certain individuals, such as spouses, civil partners, and children, to claim reasonable financial provision from the estate. To bring an Inheritance Act claim, you must demonstrate that the will does not make reasonable financial provision for you. The court will consider factors such as your financial resources, the testator’s intentions, and the size and nature of the estate. In the case of Ilott v The Blue Cross (2017), the Supreme Court established that the court’s primary consideration is the applicant’s financial need. To succeed in an Inheritance Act claim, you should gather evidence of your financial situation, the testator’s intentions, and the estate’s assets.

Key takeaway: To succeed in an Inheritance Act claim, you must demonstrate that the will does not make reasonable financial provision for you.

Timeline and Procedure for Contesting a Will

The timeline for contesting a will in the UK is typically six months from the date of the grant of probate. However, it’s essential to act promptly, as delays can result in the estate being distributed and the claim becoming more challenging to pursue. The procedure involves issuing a claim form, serving the claim on the defendants, and exchanging evidence. The court may also order mediation or other forms of alternative dispute resolution. In the case of Re: a Deceased (2018), the court emphasized the importance of acting promptly and seeking professional advice to avoid delays and costs. To contest a will, you should seek professional advice from a solicitor experienced in contesting wills to help you navigate the complex process.

Key takeaway: To contest a will, you must act promptly and seek professional advice to avoid delays and costs.


Frequently Asked Questions

What are the grounds for contesting a will in the UK?

Undue influence, lack of capacity, and Inheritance Act claims are the primary grounds.

How long do I have to contest a will in the UK?

Typically six months from the date of the grant of probate.

What evidence do I need to support an undue influence claim?

Evidence of the testator’s vulnerability and the influencer’s manipulation.

Can I bring an Inheritance Act claim if I’m not a spouse or child?

Yes, other dependants, such as cohabitees or siblings, may also be eligible to bring a claim.


Try LitigaForge AI free at litigaforge.com to get expert guidance on contesting a will in the UK and explore our range of legal tools, including Contract Review and Case Analysis.

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