How to Challenge a Will With Business Interests

A will that includes business interests - such as company shares, partnership stakes, commercial property or goodwill in a family enterprise - adds a layer of legal complexity to any dispute over inheritance. These assets often have significant financial and emotional value, and disagreements can arise not only over whether the will is valid but also over how business assets should be valued, managed or transferred. This detailed guide explains the legal context, the rights of interested parties, practical steps for challenging a will involving business interests, relevant time limits, risks and common questions under the law of England and Wales.

Why Business Interests Create Complexity in Probate Disputes

Business assets differ from straightforward personal property because:

• They may be held through companies, partnerships or trusts with their own legal rules and governance structures.
• Ownership interests like shares or partnership rights may not pass automatically by will without complying with corporate or partnership documents.
• The valuation of a business or goodwill can be disputed, affecting estate value and distribution.
• Agreements such as shareholders' agreements or partnership contracts may contain provisions about succession that conflict with a will's terms.
• Promises about succession in the business may give rise to proprietary estoppel or equitable claims if they are not honoured in the will.

This complexity often means disputes go beyond a simple challenge to the will's validity and extend into commercial, trust and equitable law.

Grounds for Challenging a Will With Business Interests

There are several legal bases on which a will may be challenged in relation to business assets:

1. Invalidity of the Will

A basic challenge is that the will itself is invalid because:

• The testator lacked mental capacity when the will was made.
• The testator did not know and approve the contents.
• The will was subject to undue influence, coercion or fraud.
• The will was not properly executed under the Wills Act 1837.

Where business interests are involved, evidence of undue influence or lack of understanding often centres on the testator's intentions about future control and ownership of the business.

2. Reasonable Financial Provision Claims

If the will is valid but a beneficiary or dependant, such as a spouse, child or financial dependant, is materially disadvantaged by how business assets are dealt with, they may claim under the Inheritance (Provision for Family and Dependants) Act 1975 for reasonable financial provision. This claim can include seeking a share of business value or compensation from the estate.

3. Proprietary Estoppel and Equitable Claims

A person may make a proprietary estoppel claim if they relied on assurances about receiving a business interest and acted to their detriment. For example, a long‑serving manager or family member promised a share in the business may claim that failing to honour that promise in the will is unjust. To succeed, they must demonstrate:

• A clear assurance was made.
• They relied on that assurance.
• They suffered detriment as a result of their reliance.

This principle is often relevant in family businesses and farming estates where informal promises are made over many years.

4. Business Law and Shareholder Rights

Where the will deals with company shares, other legal claims may overlap with probate. If a shareholder believes the will's distribution of shares causes harm to the company or breaches shareholders' agreements, corporate law remedies (such as claims under the Companies Act 2006 for unfair prejudice) may arise. These are technically separate from will challenges but can intersect with estate disputes.

Who Can Challenge a Will Involving Business Interests

To challenge a will you must have a legal interest in the estate or asset in question. Typical claimants include:

• Beneficiaries under the will who are disadvantaged or excluded.
• Eligible relatives and dependants under the Inheritance Act 1975.
• Persons claiming under proprietary estoppel, constructive trust or equitable rights.
• People who would inherit under intestacy rules if the will were invalid.

Executors can initiate or defend disputes, but an executor who challenges a will may need to step down because they must administer the estate in accordance with its terms.

Step‑by‑Step Guide to Challenging a Will With Business Interests

Step 1: Obtain the Will and Business Documents

Secure a copy of the will and any relevant business documentation, including:

• Articles of association or partnership agreements.
• Share certificates or partnership deeds.
• Business valuation reports, if available.
• Copies of prior wills or estate planning documents.

These provide essential context for assessing how business assets were intended to be dealt with.

Step 2: Seek Specialist Advice

Challenges that involve business interests often intersect with commercial and trust law. Early advice from solicitors experienced in contentious probate and business law helps identify the most appropriate grounds for challenge and evidence required.

Step 3: Consider a Caveat

Before probate is granted, it may be possible to lodge a caveat with the Probate Registry. A caveat prevents the grant of probate for six months, giving you time to prepare your claim. This is particularly important to preserve business assets and prevent premature distribution.

Step 4: Gather Evidence

Evidence may include:

• Financial records and valuations of the business or shares.
• Testimony and correspondence about the testator's intentions.
• Expert reports on the business's value or structure.
• Medical or capacity evidence if validity is contested.

Experts in valuation and corporate structure can be critical in cases involving business interests.

Step 5: Attempt Negotiation or Mediation

Many disputes are resolved before court proceedings through negotiation or mediation. These approaches can reduce cost and delay and help preserve business continuity.

Step 6: Issue Court Proceedings

If settlement fails, your solicitor will issue proceedings in the civil court. The nature of your claim - whether under the Inheritance Act, a validity challenge or proprietary estoppel - will dictate the court process. Complex business disputes may go to the High Court.

Time Limits and Practical Considerations

• Inheritance Act claims generally must be brought within six months of the grant of probate.
• Validity challenges based on fraud, undue influence or lack of capacity have no strict time limit, but delay can weaken evidence.
• Proprietary estoppel claims also lack fixed statutory limits but are subject to equitable principles; undue delay may weaken the claim.

Disputes involving business interests are often costly and complex, requiring commercial valuation expertise and careful strategy. Early legal and financial advice is essential.

Risks and Costs

Litigation involving business assets can be expensive, as it may require:

• Valuation experts and financial advisers.
• Specialist corporate and probate legal teams.
• Court fees and possible costs awards if the challenge fails.

There is a risk that costs may be paid from the estate, reducing the value of assets passed to beneficiaries.

Common Questions

Can I claim if I was promised a business interest informally?
Yes. A proprietary estoppel claim may succeed if you can show you relied on a promise to your detriment and were not provided for in the will.

What happens to business operations while a dispute is ongoing?
Executors or trustees generally must continue to manage the business in the estate's best interests. Courts may appoint independent accountants or managers if necessary.

Can valuation disagreements be resolved independently of the will challenge?
Often valuation experts are instructed jointly, or the court may decide valuation as part of the dispute. Agreement on valuation can facilitate settlement.

Key Takeaways

Challenging a will involving business interests in England and Wales requires understanding both estate law and commercial/legal structures associated with business assets. Common legal grounds include will invalidity, Inheritance Act claims and proprietary estoppel. The process involves obtaining relevant documents, gathering evidence, timely procedural steps such as caveats, negotiation, and potentially court proceedings. Given the complexity and potential costs, early specialist legal advice and careful planning are crucial to protect rights and achieve an effective resolution.

James William Steven Parker

James is the founder of UKLegalGuides.com and a former agent at the Ministry of Justice (UK). With a background in processing legal claims, he launched this platform to make the laws of England and Wales accessible to everyone.