Wills and Blended Families, Planning for Children and Partners
A blended family can create a very human tension.
A blended family can create a very human tension.
You may want a husband, wife or partner to be secure if you die, while also wanting children from an earlier relationship to inherit eventually. Your partner may have children too. You may own a home together but have contributed different amounts.
There is nothing unusual about those wishes. What is risky is assuming that a simple sentence such as “my partner gets everything and the children will get it later” guarantees that outcome.
Start by describing the family you actually have
Before thinking about legal documents, map the relationships.
Who is married or in a civil partnership? Who is cohabiting? Which children are yours, your partner’s or shared? Is anybody financially dependent? Does somebody have additional needs? Who owns the home and how?
The legal position can differ sharply from the way a family describes itself socially.
Why leaving everything to the survivor can create uncertainty
If assets pass outright to a surviving partner, they generally become that person’s assets.
Life then continues. The survivor may remarry, change their own will, spend money on care, sell a property or experience financial difficulties.
That does not mean leaving assets to a partner is wrong. It means the assumption that “the children automatically get whatever is left later” should not be treated as a legal plan unless professional advice confirms the arrangements achieve the person’s intentions.
Why bypassing the partner can create a different problem
The opposite approach can also create difficulties.
If somebody tries to protect an inheritance for children without considering the surviving partner’s housing or financial needs, the survivor may face insecurity or conflict with beneficiaries.
The useful planning question is therefore not simply “partner or children?” It is what the person wants to happen for each of them and what assets are actually available.
Stepchildren and intestacy
Family language can conceal legal differences.
A stepchild is not automatically treated as a biological or legally adopted child for the ordinary intestacy rules simply because there has been a close parental relationship.
Likewise, an unmarried partner does not automatically inherit under intestacy.
Where a family includes stepchildren, unmarried partners or children from previous relationships, relying on default inheritance rules can therefore produce unexpected results.
The home often sits at the centre
Ask how the home is owned before assuming a will controls it.
If joint owners hold as joint tenants, the property normally passes automatically to the survivor. A tenant-in-common share can pass under a will or intestacy.
That ownership question can materially affect any plan involving a surviving partner and children.
Do not design a trust from an internet article
Trusts are sometimes discussed in connection with blended families, but there are different types with different legal and tax consequences.
MH360 can explain the questions that may need considering. It should not tell somebody which trust or will structure to use.
Take a clear family map, property information, existing wills and your intended outcomes to a professionally qualified legal adviser. That allows advice to be built around the family rather than around a generic product.
Last reviewed
5 September 2026
Important legal informationThis guide provides general information only and does not constitute legal advice. It is not intended to recommend any particular legal arrangement, course of action or solution. Wills, inheritance, trusts, powers of attorney, mental capacity and related matters can have significant legal and financial consequences, and the appropriate approach will depend on individual circumstances. Professionally qualified legal advice should be sought before making, changing or acting upon important legal arrangements or decisions.