Trusts for Children in Wills: Protecting an Inheritance Until They Are Ready

If you are leaving money to children, the hardest question is not who inherits but when, and in what state of readiness. A large sum landing on an 18th birthday, with no guidance and no guardrails, can do more harm than good. A trust for children in your Will lets you protect that inheritance until the child is genuinely ready for it, rather than simply old enough in law.

This article explains why a trust is used for children, the main options available, and how to think about the age and the people you put in charge.

Why Leave a Child’s Inheritance in Trust?

Under the law of England and Wales, a child cannot receive their inheritance outright until they turn 18. Left without a trust, that is exactly what happens: on their 18th birthday, the whole sum is theirs. For a modest amount that may be fine. For a serious inheritance, most parents pause, because 18 is very young to manage a life-changing sum sensibly. A trust for children is one of the main types of Will Trust.

A trust changes that. It lets you set the age at which your child inherits, release money gradually rather than all at once, and give trustees the power to help with the things that matter, education, a first home, a genuine need, while the rest stays protected. You are not withholding the inheritance; you are making sure it arrives in a way that helps rather than overwhelms.

What Are the Main Types of Trusts for Children in Wills?

Three structures cover almost every family. A bereaved minor’s trust holds a child’s inheritance until they reach 18 and receives favourable tax treatment where the child has lost a parent. An 18-25 trust lets you delay full inheritance to any age up to 25, which many parents prefer, in return for a limited tax cost on the portion held beyond 18. A discretionary trust gives your trustees the widest flexibility, holding the money for a group of children and deciding how and when each benefits, which suits families where needs differ or circumstances are hard to predict.

Each carries its own tax treatment, and the differences matter. The right structure is the one that matches how much you are leaving, the ages of your children, and how much flexibility you want your trustees to have.

How Do You Choose the Age and the Trustees?

The age is a judgment only you can make. Eighteen is the default in law, twenty-one and twenty-five are common choices, and the right answer depends on the child and the size of the inheritance. Many parents settle on an age where they believe a young adult would have enough life behind them to handle money well, while using the trust to help with sensible needs in the meantime.

Whoever you choose, your trustees are the people who will carry out your wishes long after you are gone. They should be people you trust completely, and you should always name replacements in case your first choice cannot act. A letter of wishes, guiding how you would want them to use their powers, is one of the most valuable things you can leave alongside the trust.

Is a Trust for Your Children Right for You?

A trust for children earns its place wherever the inheritance is large enough, or the children young enough, that handing it over outright at 18 would worry you. Blended families, young children, and sizeable estates are the clearest cases. It gives you control over timing and protection without cutting anyone out.

If your children are already capable adults and the amounts are modest, a straightforward gift may be all you need. A free consultation is there to work out which structure fits your family, and to help you settle on the right age and the right people.

Frequently Asked Questions

At what age can a child inherit from a Will?

Under the law of England and Wales, a child cannot receive an inheritance outright until they turn 18. Without a trust, the whole sum passes to them at 18. A trust lets you delay full inheritance beyond that, commonly to 21 or 25, while allowing trustees to help with genuine needs in the meantime.

What is the best type of trust for leaving money to children?

There is no single best type; it depends on your family. A bereaved minor’s trust holds an inheritance to 18 with favourable tax treatment where a child has lost a parent, an 18-25 trust delays inheritance to as late as 25, and a discretionary trust gives trustees the widest flexibility across a group of children.

Can I decide what my children’s inheritance is used for?

You can guide it. Trustees can be given the power to help with things like education, a first home, or a genuine need before the child inherits in full. A letter of wishes tells your trustees how you would want their powers used, so the money supports your children in the way you intended.

TL;DR: Trusts for Children in Wills

A trust for children in your Will protects their inheritance until they are genuinely ready for it, letting you set the age, release money sensibly, and put trusted people in charge.

• A child cannot inherit outright until 18, and many parents feel that is too young.
• A bereaved minor’s trust holds an inheritance to 18 with favourable tax treatment after losing a parent.
• An 18-25 trust delays full inheritance to as late as 25 for a limited tax cost.
• A discretionary trust gives trustees the widest flexibility across a group of children.
• Choose the age, the structure, and the trustees to fit your family; a consultation helps you decide.