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Will Splitting Estate: Spouse & Children UK Guide

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Part ofPersonal Legal Documents UK

Updated June 2026 · England & Wales
Writing a will is one of those jobs that sits on the to-do list for years, and then suddenly feels urgent. If you want your estate divided between your husband, wife or partner and your children, there's a bit more to think about than simply naming the people you love. You're balancing two generations, potentially with different needs, and you want the document to hold up without triggering family arguments after you're gone. This guide walks through how a split-share will works in England and Wales, the decisions you'll need to make along the way, and the common pitfalls I see when people try to DIY this kind of plan. It's written for ordinary families, not tax lawyers, so the language stays plain throughout.

What this document is

A will that divides your estate between a partner and children (often called a balanced or proportional will) is simply a last will and testament where the residue (what's left after debts, taxes, funeral costs and any specific gifts) is split between two or more named groups. The proportions are entirely up to you.

Some people go 50/50 between spouse and children. Others leave a larger share to a surviving partner with the children inheriting the remainder, or give the partner a life interest in the home with the underlying value passing to the children later.

You can also carve out smaller gifts for grandchildren, siblings, friends or charities before the residue is divided. The will names executors to carry out your instructions, guardians for any children under 18, and trustees if money needs to be held for minors or vulnerable beneficiaries.

Done properly, it gives you full control over who gets what, in what proportions, and on what terms, within the limits set by English succession law and the Inheritance (Provision for Family and Dependants) Act 1975.

How to use this document

  1. List what you own and what you owe. Before you can divide anything, you need a realistic picture of your estate. Write down property, savings, pensions, life policies, investments, business interests and significant personal items, then subtract mortgages and other debts. Remember that jointly owned assets and pension death benefits often pass outside the will, so flag those separately.
  2. Decide on the split and name your beneficiaries. Work out the proportions you want between your spouse or partner and your children, and whether any specific gifts come off the top first. If a child has died before you, decide whether their share passes to their own children or is redistributed. Think carefully about stepchildren, as they do not inherit automatically under intestacy rules and must be named.
  3. Choose executors, trustees and guardians. Executors handle the estate administration and should be people you trust to be organised and even-handed. If any beneficiary is under 18, trustees will hold their share until they reach the age you specify. For children under 18, guardians step in if both parents die, so pick someone willing and practical, and have the conversation with them first.
  4. Get the will drafted and properly executed. The will must be in writing, signed by you in the presence of two independent adult witnesses who also sign, and none of those witnesses (or their spouses) can be beneficiaries. Poorly worded clauses cause real problems after death, so getting the drafting right matters more than saving a few pounds on a supermarket template.
  5. Store it safely and review it regularly. Tell your executors where the original is kept, whether that's with a will storage service, your solicitor or at home in a fireproof box. Review the will after any major life event: marriage (which usually revokes an existing will), divorce, a birth, a death, buying property, or receiving an inheritance yourself.

Common questions

If you're dealing with this kind of situation, speak to an experienced legal adviser who can walk you through it — from £89.

Common questions

Q Can I leave everything to my spouse and cut the children out?
You can, but adult children and anyone financially dependent on you may still bring a claim under the Inheritance (Provision for Family and Dependants) Act 1975 if they feel reasonable provision hasn't been made. That's why many people prefer a balanced will, which reduces the risk of a contested estate. If you want to exclude someone deliberately, a short letter of wishes explaining your reasoning can help defend the will later.
Q What happens if a child is under 18 when I die?
Minor children cannot inherit directly. Their share is held on trust by the trustees you appoint until they reach the age stated in the will, which is commonly 18, 21 or 25. The trustees can usually apply money earlier for education, maintenance or benefit. Choosing trustees who get on with your guardians, and who understand money, makes a real difference to how smoothly this works.
Q Does my unmarried partner inherit automatically?
No. Under the intestacy rules in England and Wales, an unmarried partner (sometimes called a common-law partner, though that status doesn't legally exist) inherits nothing by default, no matter how long you've been together. If you want your partner to benefit, you must name them in a valid will. This is one of the most common and painful surprises after a death.
Q How do I protect children from a previous relationship?
Leaving everything outright to a new spouse carries a risk: they can later change their own will and divert assets away from your children. Options include a life interest trust (your partner enjoys income or use of assets for life, then the capital passes to your children) or fixed shares set out in your will. Which works best depends on the family dynamic and the value of the estate.
Q Do I need to worry about inheritance tax?
Possibly. Estates above the nil-rate band may pay inheritance tax at the prevailing rate, with an additional residence nil-rate band sometimes available when a home passes to direct descendants. Transfers between spouses and civil partners are generally exempt. Thresholds and rules change over time, so check gov.uk for the current figures or take proper tax advice if your estate is substantial.
Q What if I get married after writing the will?
In England and Wales, getting married or entering a civil partnership normally revokes any earlier will automatically, unless the will was specifically made in contemplation of that marriage. Divorce doesn't revoke the whole will, but it treats your ex-spouse as if they had died before you for the purposes of gifts and appointments. Either event is a trigger to review and usually rewrite your will.
Q Can I write my own will at home?
Legally yes, provided it meets the signing and witnessing rules in the Wills Act 1837. In practice, home-made wills are behind a large share of contested estates and failed gifts. Ambiguous wording, missing residue clauses, witnesses who are also beneficiaries, and poorly thought-through trust provisions cause expensive problems. If your situation involves children, property or a blended family, it's worth getting it done properly.
If you're dealing with this kind of situation, speak to an experienced legal adviser who can walk you through it — from £89.

Sources

This guide is based on primary UK law and official guidance.

Brad Askew, Solicitor (non-practising)

Written & reviewed by

Brad Askew Solicitor (non-practising)

Brad is on the roll of solicitors of England & Wales but does not hold a practising certificate and does not provide legal advice. LegalDocuments.co.uk is not a law firm and does not provide regulated legal advice.

Legal disclaimer
This article is for general information only. It is a tool to help you find your way — not legal advice, and not a substitute for speaking to a qualified adviser about your situation.