Inheritance Disputes in the UK: What to Do When Families Disagree

Nobody wants to argue about money after someone dies. But inheritance disputes are more common than most people realise, and they tend to surface at the worst possible moment — when everyone is grieving, exhausted, and emotionally raw.

If you are facing a disagreement over a will, an estate, or how assets should be divided, you are not alone. Here is what you need to know about inheritance disputes in the UK, and what you can do about them.

Why Do Inheritance Disputes Happen?

Most inheritance disputes are not really about money. They are about fairness, recognition, and the complicated dynamics that exist in every family. Common triggers include:

• Unequal distribution in a will. One sibling receives more than another, and the reasons are unclear or feel unjust.
• No will at all. When someone dies intestate (without a will), the estate is divided according to strict legal rules that may not reflect what the family expected.
• A new or changed will. A will altered shortly before death, especially if the deceased was elderly or unwell, can raise questions about whether they were pressured.
• Second marriages and blended families. Tensions between a surviving spouse and children from a previous relationship are among the most common causes of disputes.
• Executor disagreements. The person appointed to administer the estate may clash with beneficiaries over decisions, timing, or transparency.
• Promised gifts not in the will. Someone was told they would inherit the house, the car, or a specific item, but the will says otherwise.

Grounds for Contesting a Will in the UK

Not every disagreement gives you legal grounds to challenge a will. In England and Wales, the main routes are:

Lack of Testamentary Capacity

The person who made the will must have understood what they were doing. If they were suffering from dementia, severe illness, or cognitive decline at the time the will was written, it may be challenged on the grounds that they lacked mental capacity.

Undue Influence

If someone pressured or manipulated the deceased into changing their will, this can be grounds for a challenge. Proving undue influence is difficult — the burden of proof rests on the person making the claim.

Lack of Knowledge and Approval

The person making the will must have known and approved its contents. If there is evidence they signed something without understanding it, or if the will was prepared in suspicious circumstances, this may apply.

The Inheritance Act 1975

The Inheritance (Provision for Family and Dependants) Act 1975 allows certain people to claim that a will — or the intestacy rules — did not make reasonable financial provision for them. Eligible claimants include:

Who Can Claim	Typical Situation
Spouse or civil partner	Left significantly less than expected
Former spouse (not remarried)	No provision made after divorce
Child of the deceased	Adult children left out entirely
Person treated as a child of the family	Stepchildren raised by the deceased
Person maintained by the deceased	A dependant who relied on financial support
Cohabitant (2+ years)	Unmarried partner with no legal inheritance right

Claims under the Inheritance Act must typically be made within six months of the grant of probate.

What to Do If You Are Facing a Dispute

1. Pause Before Reacting

Emotions run high after a death. Before escalating, give yourself time. What feels deeply unfair in the first week may look different after a month. That said, do not ignore genuine concerns — there are time limits on legal claims.

2. Communicate Openly

Many disputes can be resolved through honest conversation. If a sibling or family member is upset about the will, try to understand their perspective before defending your own. A facilitated family meeting — perhaps with a neutral third party — can sometimes prevent matters from going further.

3. Get Independent Legal Advice

If the dispute cannot be resolved informally, consult a solicitor who specialises in contentious probate. Many offer a free initial consultation. They can tell you whether you have a valid claim and what the realistic outcomes might be.

Key things a solicitor will assess:

• The strength of your legal position
• The likely cost of pursuing a claim
• Whether mediation might resolve things faster and cheaper
• The time limits that apply

4. Consider Mediation

Mediation involves a trained, neutral mediator helping both sides reach an agreement. It is significantly cheaper than going to court, faster, and less adversarial. Many families find it preserves relationships that litigation would destroy.

Mediation is not binding unless both parties agree to make it so, and it can be attempted at any stage — even after court proceedings have started.

5. Court as a Last Resort

If all else fails, the dispute may need to go to court. Contentious probate cases are heard in the Chancery Division of the High Court or the County Court. Be aware that:

• Costs can be substantial. Legal fees for contested probate cases often run into tens of thousands of pounds.
• Cases can take years. Court backlogs mean significant delays.
• The outcome is uncertain. A judge may not rule the way either party expects.
• It is public. Court proceedings are not private.

For these reasons, most solicitors will advise exhausting every alternative before going to court.

How to Prevent Inheritance Disputes

If you are thinking about your own estate planning, there are steps you can take to reduce the risk of disputes after your death:

• Write a clear, professionally drafted will. Ambiguity is the single biggest cause of disputes.
• Update your will regularly. After marriage, divorce, the birth of children or grandchildren, and after acquiring significant assets.
• Talk to your family. Difficult as it is, explaining your wishes while you are alive can prevent shock and resentment later.
• Consider a letter of wishes. This is not legally binding but can explain the reasoning behind your decisions.
• Use a professional executor. If family dynamics are complicated, appointing a solicitor or professional executor can remove the burden from relatives.

The Emotional Cost

Inheritance disputes are rarely just legal problems. They sit at the intersection of grief, money, and family history. Even when a claim is justified, the process is draining. And when it is not — when the dispute is driven by greed or old resentments — it can cause damage that lasts far longer than the legal case.

If you are involved in a dispute, look after yourself. Speak to a counsellor or a trusted friend. The legal process will take time, and you need support through it.

Getting Help

If you are an executor dealing with a disputed estate, or a beneficiary who feels the will is unfair, start by getting legal advice. Many solicitors offer fixed-fee consultations for inheritance disputes.

GetPassage can help you stay organised through the probate process, track what needs doing, and manage the practical side of estate administration — leaving you more capacity to handle the human side of things.