Can I leave everything to one child?
Yes. England and Wales has testamentary freedom, so you can leave your entire estate to one child and nothing to the others. But "can" is not the same as "without risk": an excluded spouse, civil partner, or a child who depended on you financially may claim reasonable provision under the Inheritance (Provision for Family and Dependants) Act 1975. A letter of wishes helps defend your decision.
Detailed explanation
Unlike some countries that impose "forced heirship," England and Wales lets you choose who inherits. You are entitled to leave everything to one child, to a friend, or to charity, and to leave other children out entirely. The will is valid as written.
The limit comes from the Inheritance (Provision for Family and Dependants) Act 1975. Certain people can ask a court to award them reasonable financial provision if the will (or intestacy) does not provide for them. Eligible applicants include your spouse or civil partner, a former spouse who has not remarried, a cohabiting partner of at least two years, your children (including adult children), and anyone you were financially maintaining.
For most adult children, a claim is not a foregone conclusion — the court looks at their financial needs and resources, the size of the estate, any disability, and your reasons for the exclusion. A financially independent adult child usually faces a harder claim than a dependent or vulnerable one. The leading case, Ilott v The Blue Cross, confirmed that adult children can succeed in some circumstances but that testamentary freedom carries real weight.
To strengthen your will, prepare a signed letter of wishes explaining why you have made these choices, keep it with the will, and take legal advice. This does not block a claim, but it gives your executors evidence to defend your intentions.
Margaret has two daughters. One has cared for her for years; the other is estranged and financially comfortable. Margaret leaves everything to the carer daughter and writes a letter of wishes explaining her reasons. The estranged daughter could bring a 1975 Act claim, but because she is financially secure and the reasons are well documented, the will is far easier to defend.
Sources
- Inheritance (Provision for Family and Dependants) Act 1975 — legislation.gov.uk
- Ilott v The Blue Cross and others [2017] UKSC 17
- GOV.UK — Make a will
- Reviewed by
- ClearLegacy editorial team
- Last reviewed
- June 2026
- Next review
- December 2026
- Jurisdiction
- England & Wales
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