When Life Doesn't Go to Plan
Protecting your children's inheritance after remarriage, and why a Life Interest Trust could be the most important document you ever sign.
In England and Wales, remarrying automatically cancels any existing Will. If you own a property and have children from a previous relationship, this means your home could pass entirely to your new spouse, and ultimately to their children, rather than your own. A Life Interest Trust, written into a new Will, protects both your children's inheritance and your new spouse's right to remain in the home. This guide explains how it works, who it protects, and why acting now matters.
How Do Most Families End Up in This Situation?
He was in his late twenties when he met her. A few years later, they married. Then came the house, a semi-detached in a quiet street, the kind with a driveway and a garden big enough for a trampoline. Then came the children.
For a while, it was everything they had planned.
Why Do Marriages Break Down?
It doesn't happen overnight. It rarely does.
It starts with the mortgage stress. Then the long hours. The conversations that get shorter. The evenings spent on separate sofas. The children's schedules that somehow become the only thing holding the calendar together.
Finances. Exhaustion. Resentment. Distance.
From the outside, everything looks fine. The Christmas card still goes out. The family photos still get posted. But behind closed doors, two people who once chose each other are quietly becoming strangers.
Then one day, it happens.
How Common Is Divorce in the UK?
Divorce is more common than most people realise, and it touches families at every income level, in every postcode.
| UK Divorce Statistic | Figure |
|---|---|
| Marriages ending in divorce | |
| Median marriage length before divorce | 13.0 years (2025) |
| Divorces involving dependent children | |
| Children affected by parental divorce annually | |
| Adults who remarry after divorce |
Sources: Office for National Statistics, Resolution
Nobody saw it coming from the outside. But life can go that way sometimes. One of them moves out. The family home, the one with the scuff marks on the skirting board and the height chart pencilled on the kitchen doorframe, stays with one parent as part of the settlement.
What Happens After Divorce When Both Parents Move On?
The children grow up. They get through it, as children do. They become teenagers, then adults. They find their own paths, their own partners, their own front doors.
Both parents eventually meet someone new. Life, remarkably, carries on.
Dad remarries. He is happy. His new wife is wonderful.
But here is where it gets complicated, and where most families quietly walk into a disaster they never see coming.
What Happens to Your Will When You Remarry in the UK?
In England and Wales, getting married automatically revokes any existing Will. Unless that Will was specifically drafted in contemplation of marriage. Most people do not know this. See Wills Act 1837, Section 18.
Dad still owns the family home, the one the children grew up in. He has not updated his Will since remarrying. He assumes it will sort itself out.
Then Dad passes away.
| Scenario | What Happens to the Estate |
|---|---|
| No Will (intestacy rules apply) | Spouse takes the personal belongings and the first £322,000 (fixed net sum from 26 July 2023), then half of the remainder; the children share the other half |
| Old Will written before remarriage | Will is automatically void. Intestacy rules apply as above |
| New Will written after remarriage | Depends entirely on what it says, no automatic protection for children |
| No planning at all | New spouse could inherit the family home in its entirety |
Can Your Children Lose Their Inheritance When You Remarry?
Under intestacy rules, or with a void Will, a large share of the estate, and possibly the family home, can pass to the new wife.
She lives there for years. Then she passes away. Her estate, including Dad's family home, passes to her children from her previous relationship.
Dad's children receive nothing from the home they grew up in. This is not a rare edge case. This happens to real families, every year, across the UK.
The property Dad worked for, paid a mortgage on for decades, and intended to leave to his children, is gone. Not through malice. Not through bad intent. Simply through a failure to plan.
How Do You Protect Your Children Without Leaving Your New Spouse With Nothing?
It is awkward. Nobody wants to sit across from their new partner and say: "I love you, but I need to protect my children."
It can feel disloyal. It can feel like planning for the end before the beginning has properly started.
Here is the truth
Protecting your children does not mean you love your new partner any less. Done correctly, the right legal structure protects both sides, your children's inheritance and your new spouse's security. Both can be achieved in a single, well-drafted document.
What Is a Life Interest Trust and How Does It Work?
The right tool here is a Life Interest Trust: sometimes called aProperty Trust Will or Flexible Life Interest Trust (FLIT). It is written directly into your Will and comes into effect when you pass away.
How It Protects Everyone
| Who | What They Receive |
|---|---|
| New spouse (surviving partner) | The legal right to live in the property for life, they cannot be forced to leave |
| New spouse | May benefit from rental income if agreed within the trust |
| Dad's children | Guaranteed to inherit the property when the trust ends |
| Dad's children | Legally protected from the property passing to step-siblings |
| The estate | Potential inheritance tax planning benefits depending on structure |
When Does a Life Interest Trust End?
The Life Interest can be set to end on any of the following triggers, or a combination:
| Trigger | What It Means |
|---|---|
| Death of the surviving spouse | Property passes to children when the new spouse passes away |
| Remarriage of the surviving spouse | Trust ends if the new spouse remarries, protecting children from a third party |
| Cohabitation clause | Trust ends if the surviving spouse enters a new long-term relationship |
| Fixed time period | For example, 10 or 15 years, after which the property passes to children |
| Youngest child reaching a set age | Useful where children are still young at the time of death |
| Voluntary surrender | The surviving spouse can choose to end the trust and release the property |
Dad can say: "My wife can live in our home for the rest of her life, but when she passes, or if she remarries, the property passes to my children." Everyone is protected. Nobody is left out.
How Does a Life Interest Trust Work in Practice?
What Are the Risks of Not Having a Life Interest Trust?
| Situation | Risk Level | Outcome for Dad's Children |
|---|---|---|
| No Will, remarried | High Risk | Could receive little or nothing from the property |
| Old Will written before remarriage | High Risk | Will is void, same outcome as having no Will |
| Basic Mirror Will with new spouse | Medium Risk | Depends entirely on the new spouse's future decisions |
| Life Interest Trust Will | Low Risk | Children's inheritance is legally protected from the outset |
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Common Questions About Life Interest Trusts
Do Not Leave It to Chance
If any part of this story sounds familiar, whether you are the parent who kept the family home, the one who has remarried, or the adult child quietly wondering what happens, this is the conversation worth having.
A properly drafted Will with a Life Interest Trust is not about distrust. It is about clarity. It is about making sure the people you love, on both sides, are taken care of, without ambiguity, without family conflict, and without the courts deciding for you.
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