Yes. In England and Wales you can leave your entire estate to one child and nothing to your other children or relatives, because the law gives you freedom to decide who inherits.
That freedom is not absolute. Certain people, including a spouse, a former spouse who has not remarried, and a child, can ask a court for provision from the estate under the Inheritance (Provision for Family and Dependants) Act 1975, s.1 (as at August 2026, subject to change). So the practical question is rarely whether you can leave everything to one child, but how to record that choice clearly and reduce the chance of a later dispute. This guide sets out how it works, what other family members can and cannot do, and the inheritance tax points that often come up.
Can you legally leave everything to one child?
England and Wales follow a principle often described as testamentary freedom: a person making a will can choose who benefits and who does not. There is no rule that an estate must be split equally between children, and no rule that every child must receive something. A parent can leave the whole estate to one child, to a charity, or to someone outside the family altogether.
For that choice to take effect, the will itself has to be valid. In broad terms it must be made in writing by someone aged 18 or over who has mental capacity, signed in the presence of two witnesses who also sign, and made freely without pressure from anyone else (gov.uk, Making a will, as at August 2026, subject to change). Our guide on how to write a will covers those formalities in more detail. Where a will is not valid, the estate can pass under the intestacy rules instead, which may produce an equal split you did not intend.
What about your other children?
A child who is left out of a will has no automatic entitlement to a share. Adult children in particular are not guaranteed anything simply because they are related to the person who died. What they can do is ask the court to consider whether the will made reasonable financial provision for them, under the 1975 Act. The court does not rewrite the will to be fair in a general sense. It looks at whether reasonable provision for maintenance was made, taking account of factors such as the person's financial needs, any disability, and the size of the estate.
Two points are worth holding in mind. First, a claim is possible but not guaranteed to succeed, and adult children without financial need often face a harder task than a dependent minor child or a spouse. Second, the prospect of a claim is one of the main reasons families take care over how a decision to favour one child is recorded, rather than a reason the decision cannot be made.
Who can make a claim against the estate?
The 1975 Act sets out defined categories of people who may apply to the court for provision. It is not open to anyone who feels aggrieved.
| Category of applicant | In outline |
|---|---|
| Spouse or civil partner | The husband, wife or civil partner of the person who died. |
| Former spouse or civil partner | Provided they have not formed a new marriage or civil partnership. |
| Cohabiting partner | A person who lived with the deceased as a couple for at least two years immediately before the death. |
| Child of the deceased | Including adult children, though provision is judged against their circumstances. |
| Person treated as a child of the family | For example a stepchild treated as the deceased's own. |
| Person maintained by the deceased | Someone who was being financially supported immediately before the death. |
Source: Inheritance (Provision for Family and Dependants) Act 1975, s.1, as at August 2026, subject to change.
A claim must usually be brought within six months of the grant of representation (the grant of probate or letters of administration), under section 4 of the Act (as at August 2026, subject to change). The court can allow a late claim in some circumstances, but the time limit is a strong reason for anyone considering a claim to act promptly.
How to reduce the risk of a challenge
Leaving everything to one child is more settled when the reasons are clear and the will is soundly made. Families often consider the following, and where the situation is sensitive many choose to take professional advice before finalising anything.
- A letter of wishes. A separate, signed note explaining why the estate is left as it is. It is not binding, but it can help a court and an executor understand the reasoning.
- Evidence of capacity. Where age or health might later be questioned, a contemporaneous note from a medical practitioner about mental capacity can support the will.
- No undue influence. Making the will independently, without the benefiting child arranging or sitting in on the drafting, helps show the choice was freely made.
- A properly executed will. Correct signing and witnessing removes the simplest ground of challenge. Home-made wills are a common source of later dispute.
- Keeping it current. Reviewing the will after events such as a new relationship, a birth or a change in health helps it keep reflecting your wishes.
A clear will decides who inherits. A clear explanation of why can make that decision far harder to unsettle.
Inheritance tax when you leave everything to one child
Leaving your estate to one child does not increase the inheritance tax due compared with splitting it between several children. Inheritance tax is charged on the value of the estate above the available tax-free thresholds, not on the number of people who inherit. The standard rate is 40%, charged only on the part of an estate above those thresholds, with a reduced rate of 36% where at least 10% of the net estate passes to charity (gov.uk/inheritance-tax, as at August 2026, subject to change).
| Allowance or rate | Level (August 2026) |
|---|---|
| Nil-rate band | £325,000 |
| Residence nil-rate band | Up to £175,000 |
| Standard rate | 40% |
| Reduced rate (10%+ to charity) | 36% |
| Taper threshold for the residence band | £2,000,000 |
Source: gov.uk/inheritance-tax. These figures are frozen until the end of the 2030-31 tax year (5 April 2031) following the extension announced at Autumn Budget 2025 (gov.uk, Inheritance Tax thresholds, published 26 November 2025). As at August 2026, subject to change.
One point works in favour of leaving a home to a child. The residence nil-rate band, worth up to £175,000, applies where a main residence passes to a direct descendant, which includes a child, grandchild, stepchild or adopted child (gov.uk, Passing on a home, as at August 2026, subject to change). Leaving your home to one child can therefore keep that extra allowance available. The residence band is reduced by £1 for every £2 by which the estate exceeds £2,000,000, so larger estates may lose part or all of it. Our inheritance tax guide works through how the bands combine.
Some families instead consider gifting to a chosen child during their lifetime. Most lifetime gifts fall outside the estate if the person lives for seven years afterwards, and there is an annual exemption of £3,000 (gov.uk, Gifts, as at August 2026, subject to change). Gifting also removes the asset from your control, so it suits some situations and not others.
What happens if you leave no will at all?
If there is no valid will, the estate passes under the intestacy rules rather than by your choice. Those rules follow a fixed order of relatives and do not let you favour one child over another (gov.uk, Intestacy rules, as at August 2026, subject to change). Where there is no surviving spouse or civil partner, children usually inherit the whole estate in equal shares. So the only reliable way to leave everything to one child is to say so in a valid will. Without one, the law will most likely divide the estate equally. Our guide on what probate involves explains how an estate is administered in either case.
Scotland and Northern Ireland
This guide describes the law of England and Wales. The position in Scotland is materially different. Scots law gives a spouse, civil partner and children protected legal rights over the deceased's moveable estate, such as money and possessions, which cannot be removed by a will. That means a child in Scotland generally cannot be entirely disinherited from the moveable estate, even if the will leaves everything to a sibling. Northern Ireland has its own succession law that is broadly similar to England and Wales, including a comparable route for family and dependants to seek provision. Where an estate touches more than one jurisdiction, it can be worth taking advice in each.
Practical steps to consider
- Decide clearly what you want each child to receive, and why.
- Make a properly executed will that records the decision in plain terms.
- Consider a signed letter of wishes explaining the reasoning.
- Where capacity or pressure might be questioned later, gather supporting evidence at the time.
- Review the arrangement after major life events, and revisit the inheritance tax position as thresholds and rules change.
A will is one part of a wider plan. Alongside it, many people put a lasting power of attorney in place so that someone they trust can act for them if they lose capacity, which is registered with the Office of the Public Guardian for a fee of £82 per document (gov.uk, Register a power of attorney, as at August 2026, subject to change). Our overview of estate planning shows how these pieces fit together.
The nil-rate band, frozen until 5 April 2031. Source: gov.uk/inheritance-tax, as at August 2026, subject to change.
Frequently asked questions
Can I leave everything to one child in my will?
Yes. In England and Wales you can leave your whole estate to one child and nothing to others, because the law allows you to choose who inherits. The will has to be valid, and certain people can still ask a court for provision under the Inheritance (Provision for Family and Dependants) Act 1975 (as at August 2026, subject to change), so the decision is best recorded clearly.
Can my other children contest the will if I leave them out?
They cannot claim a share simply for being related, but an adult or dependent child can ask the court to consider whether reasonable provision was made, under the 1975 Act. Such a claim is possible rather than certain to succeed, and it must usually be brought within six months of the grant of representation (1975 Act, s.4, as at August 2026, subject to change).
Do I have to explain why I left everything to one child?
There is no legal requirement to give a reason. Many people still choose to write a separate letter of wishes setting out their thinking. It is not binding on a court, but it can help an executor and a judge understand the decision if the will is later questioned.
Is it better to give money to one child before I die instead?
It depends on the circumstances rather than being better or worse in general. Most lifetime gifts fall outside the estate for inheritance tax if you live for seven years, and there is an annual exemption of £3,000 (gov.uk, Gifts, as at August 2026, subject to change). A gift also gives up control of the asset, so it suits some situations and not others.
Does leaving my home to one child affect inheritance tax?
Leaving a main residence to a child, who counts as a direct descendant, can keep the residence nil-rate band of up to £175,000 available, on top of the £325,000 nil-rate band (gov.uk, Passing on a home, as at August 2026, subject to change). The residence band is reduced for estates above £2,000,000. The tax due does not change simply because one child inherits rather than several.
Can I disinherit a child in Scotland?
Not fully. Scots law gives children protected legal rights over the deceased's moveable estate, such as money and possessions, which a will cannot remove. A child in Scotland can therefore generally claim a share of the moveable estate even where the will leaves everything to a sibling. The position in England and Wales is different, and this guide describes England and Wales.