The Claim That Outlives the Will: Adult Children and the 1975 Act in 2026

Most estate plans begin with a simple premise: the testator decides who receives what. That principle, often called testamentary freedom, remains the starting point of succession law in England and Wales. It is not, however, an absolute right. The Inheritance (Provision for Family and Dependants) Act 1975 allows certain people, including adult children, to ask the court to alter the distribution of an estate where the will, or the rules of intestacy, fail to make reasonable financial provision for them.

For families thinking about legacy, the Act is a reminder that a carefully drafted will can still be contested after death. The question is not whether a child is disappointed. It is whether the provision made is reasonable in all the circumstances. Understanding that distinction is central to managing risk, particularly as property values, blended families and later-life responsibilities continue to reshape expectations in 2026.

Testamentary freedom and its boundaries

The law starts from the assumption that a capable adult may leave their assets as they choose. The 1975 Act does not sweep that away. It creates a limited route for specified applicants to seek provision from the estate. The court is not asked to rewrite a will simply because a different distribution would seem fairer to an observer. It is asked whether the applicant has been left with reasonable financial provision.

That distinction matters. A child who receives less than a sibling, or nothing at all, must first bring themselves within the Act and then show that the estate fails to meet the statutory standard. The size of the estate, the applicant's means and the deceased's obligations all feed into the analysis.

Who may bring a claim

Adult children are eligible applicants under the 1975 Act. There is no upper age limit and no requirement in the statute that an adult child must be financially dependent on the deceased. The court will, however, look closely at need and resources. A child in stable housing with substantial income may find it difficult to establish that the estate has failed to make reasonable provision for maintenance. A child with a disability, caring responsibilities or acute housing need may be in a stronger position.

The Act also covers spouses and civil partners, former spouses who have not remarried, cohabitants who lived with the deceased for at least two years before death, and certain dependants. This article focuses on adult children, but the same estate can generate competing claims. Executors should therefore consider the full range of possible applicants rather than only the immediate family members named in the will.

What reasonable financial provision means

For an adult child, the statutory standard is not an automatic share of the estate. The court asks whether the will makes reasonable provision for the applicant's maintenance. Maintenance is a narrower concept than inheritance. It is concerned with what is needed to live at a reasonable level, not with equalising gifts among siblings or fulfilling an expectation of a windfall.

The court weighs a range of factors: the applicant's financial resources and needs, the deceased's obligations to other beneficiaries, the size and nature of the estate, any physical or mental disability, and the conduct of the applicant or others. The list is not a checklist to be scored mechanically. It is a framework for a fact-sensitive judgment.

That is why two apparently similar families can reach different outcomes. An adult child who is financially secure may struggle to show need. An adult child who has been left in precarious housing, or whose health limits earning capacity, may persuade a court that some provision is required even where the relationship was difficult.

Estrangement and unequal treatment

Estrangement is often the central emotional issue in these claims. It is relevant, but it is not a automatic bar. The court may consider the applicant's conduct, including the reasons for the breakdown and whether the deceased contributed to it. A long period of silence can reduce the weight given to the child's expectations. It does not necessarily extinguish the claim.

The well-known Ilott litigation, which reached the Supreme Court in 2017, illustrated the point. The case concerned an estranged adult daughter who had been left out of her mother's will. The court upheld an award, although at a lower level than had been granted at first instance. The lesson is not that estrangement always leads to a successful claim. It is that the court will examine the whole relationship and the applicant's circumstances rather than applying a single rule.

Testators who wish to leave an adult child out should take advice. A will that records reasons in measured terms, supported by a letter of wishes, may help to explain the intention without inflaming the dispute. An angry recital is unlikely to assist and may provide material for the other side.

The six-month clock and the executor's dilemma

In England and Wales, a claim under the 1975 Act must normally be brought within six months of the date on which representation is taken out, meaning the grant of probate or letters of administration. The court has discretion to extend the period, but relying on that discretion is risky. Delay makes evidence harder to gather and can prejudice beneficiaries who have already received assets.

Executors face a practical tension. They are expected to administer the estate efficiently, but distributing everything immediately after the grant can expose them to difficulty if a claim later emerges. A cautious executor will identify potential claimants, take legal advice where the family history is complicated, and consider whether to wait out the six-month period before making final distributions. Communication with beneficiaries about the timetable is part of good administration.

Mediation before litigation

Courts in 2026 expect parties to consider alternatives to a contested hearing. Mediation is not compulsory in every 1975 Act claim, but a refusal to engage can influence costs and the court's view of the parties' conduct. Early mediation can be particularly valuable where the dispute is really about recognition, fairness or a single asset such as the family home.

Mediation does not require the parties to agree that the will was unjust. It allows them to explore practical outcomes: a life interest, a capital sum, a transfer of property, or an agreement about how sale proceeds will be shared. For executors, a mediated settlement can reduce the cost and delay of litigation and preserve family relationships where that remains possible.

Practical steps for families and executors

For testators, the priority is clarity. Take advice on any adult child who may be vulnerable, estranged or financially dependent. Review the will after divorce, remarriage, the birth of grandchildren or a significant change in the estate. Consider whether lifetime gifts or trusts are appropriate, and remember that a letter of wishes can explain the thinking behind the will without altering its legal effect.

For executors, keep a record of potential claimants and the reasons for key decisions. Do not assume that a child who has not spoken to the deceased for years is outside the Act. If a claim is threatened, seek legal advice promptly and consider mediation before positions harden. Beneficiaries should be told that the estate is being administered carefully, not that distribution is guaranteed on a fixed date.

A legacy of clarity, not certainty

No will can guarantee that it will never be challenged. The 1975 Act exists because the law recognises that testamentary freedom can produce hardship, and because adult children remain within the class of people the court may protect. The aim for families in 2026 should be clarity: a will that reflects informed intentions, an executor who understands the risks, and a willingness to resolve differences before they become proceedings.

This article is general information and does not constitute legal advice. Anyone facing a potential claim should take advice from a solicitor qualified in England and Wales.