Wills for Blended Families: Protecting Your Partner and Children

The question is who needs protection—and when

Blended family Will planning involves more than dividing everything into percentages. You may want a current partner to remain secure in the home, children from an earlier relationship to benefit eventually, and all involved to understand who will make decisions. Different families answer those questions differently.

Start by writing down the outcome you want after the first death and after the second. Then check whether your current Wills, property ownership and any other arrangements would actually produce it. Our Will writing service begins with those circumstances.

Five assumptions worth checking

1. “My old Will still works after remarriage”

In England and Wales, marriage or civil partnership generally revokes an earlier Will, unless it was made in contemplation of that particular marriage or partnership and meets the relevant requirements. Do not assume an older Will still protects children from an earlier relationship. Check it before marriage or promptly afterwards. HMRC explains the general rule.

2. “My stepchildren inherit automatically”

Do not rely on a family label to decide inheritance. Stepchildren who have not been legally adopted do not automatically inherit under the ordinary intestacy rules simply because they are stepchildren. If you want to include them, record the intention in a valid Will and get the wording checked. GOV.UK explains who can inherit without a Will.

3. “My Will decides what happens to our jointly owned home”

If a home is held as joint tenants, the deceased owner’s interest normally passes to the surviving owner by survivorship; the Will cannot redirect that interest. If held as tenants in common, the deceased owner’s beneficial share can generally pass under the Will. See our joint tenants versus tenants in common guide and check the actual title before making decisions.

4. “Mirror Wills settle what happens after both of us die”

Mirror Wills are separate documents with similar wishes. They do not by themselves guarantee that the surviving person cannot change their Will later, or that an inheritance will reach children from the first relationship. They can be suitable for some couples, but the actual aim needs discussing. Read our Mirror Wills guide.

5. “A Trust is always the answer”

A Will Trust can sometimes help balance a partner’s needs with eventual inheritance for children. The terms, trustees, property ownership, costs, tax and administration all matter. It is not an automatic solution or a promise to avoid care costs or Inheritance Tax. Our Trust planning overview explains the broader considerations.

The family home often needs its own conversation

Consider whether your partner needs to continue living in the property, for how long, who would pay for upkeep, and what you intend if they move, remarry or need care. Then consider when and how children should benefit. Some families can express their wishes through straightforward Wills; others may need coordinated property and Trust advice.

These are the kinds of questions considered in Advanced Family Legacy Planning. If you are in the Cardiff area, our blended family Cardiff page explains the local service. Suitable clients elsewhere in England and Wales can also enquire.

A practical four-step review

Bring existing Wills, details of the home and a simple list of people you want to protect. You do not need to choose a particular Trust or legal structure before the first conversation. If a Will is being changed, follow the formal requirements; GOV.UK explains updating a Will.

Common questions

This article gives general information for England and Wales. It is not individual legal or tax advice. The correct Will and property arrangements depend on your circumstances.