At a Glance

Life Interest Trusts provide long-term security for a surviving spouse or partner while protecting the underlying capital for your chosen beneficiaries. For homeowners, it can give the survivor a lifelong right to remain in the family home while preserving the deceased owner's share for children or other beneficiaries.

Last updated: August 2026 — England & Wales | Author: Andrew Walters, Member of the Society of Will Writers

Life Interest Trust Wills: The Ultimate 2026 UK Guide

Everything you need to know about protecting your spouse or partner, preserving an inheritance for your children, and using a Life Interest Trust as part of your estate planning.

What is a Life Interest Trust Will?

Direct Answer: A Life Interest Trust Will is a Will containing a Trust that allows one person — commonly a surviving spouse or partner — to benefit from an asset during their lifetime while preserving the underlying capital for another beneficiary, such as your children.

The person receiving the lifetime benefit is commonly described as the Life Tenant. The people who ultimately inherit the Trust capital after that interest ends are commonly known as the remainder beneficiaries.

HMRC also uses the term "life interest" when explaining certain Interest in Possession Trusts. You can read the official guidance here: GOV.UK: Types of Trust.

For homeowners, this type of arrangement is frequently used within a Property Protection Trust Will, where the surviving spouse or partner can be given a Life Interest in the deceased owner's share of the family home.

How does a Life Interest Trust work?

Direct Answer: A Life Interest Trust separates the right to benefit from an asset during someone's lifetime from the right to ultimately inherit its capital value. This means you can protect a surviving spouse or partner without necessarily giving them the asset outright.

A simple example is a couple called David and Mary. They own a home worth £400,000 in equal 50% shares and want their two children to inherit eventually.

David's Will states that, when he dies, his £200,000 share of the property passes into a Life Interest Trust rather than being given to Mary outright.

Step 1: David dies

David's 50% share of the property passes under the terms of his Will into the Trust. The trustees then hold that share in accordance with the instructions contained in the Will.

Step 2: Mary receives the Life Interest

Mary can be given the right to continue living in the family home for the rest of her life. Depending on the Trust wording, she may also be able to move or downsize, with the trustees using the Trust's share towards a replacement property.

Step 3: The Life Interest ends

When Mary's Life Interest ends — commonly on her death — David's protected share passes to the beneficiaries specified in his Will, such as their children.

The result: Mary has the security of remaining in the family home, while David retains greater control over who ultimately inherits his share.

Why use a Life Interest Trust instead of leaving everything to my spouse?

Direct Answer: Leaving assets outright to your spouse or partner gives them full ownership. A Life Interest Trust takes a different approach: it can provide security for the survivor while giving you greater control over who ultimately inherits the protected assets.

Many couples make traditional Mirror Wills. Typically, each person leaves everything to the survivor, with the intention that the children inherit after the second death.

The problem is that once the first person's assets have been inherited outright, those assets belong to the survivor. The first person can no longer control what happens to them.

What could happen after the first death?

The surviving spouse or partner could remarry.
They could make a new Will with different beneficiaries.
Family relationships could change over time.
They could make substantial lifetime gifts.
A new spouse, partner or family could become part of their estate planning.
The survivor's financial circumstances could change significantly later in life.

A Life Interest Trust can provide a middle ground: your spouse or partner receives security and the right to benefit from the protected asset, while you retain greater control over who ultimately receives the capital.

This can be particularly important for blended families, second marriages and couples with children from previous relationships, where protecting both the surviving partner and the children's future inheritance may be equally important.

For a more detailed comparison, read our Standard Wills vs Property Protection Trust Wills guide.

Do I need to be Tenants in Common for a Life Interest Trust Will?

Direct Answer: If you want your share of a jointly owned home to pass into a Life Interest Trust when you die, the beneficial ownership will normally need to be held as Tenants in Common. This gives each owner a distinct share that can pass under their Will instead of automatically passing to the surviving joint owner.

This distinction is extremely important. Couples can own their home as either Joint Tenants or Tenants in Common, and the difference directly affects what happens to the property when one owner dies. Our Tenants in Common guide explains the differences between the two ownership structures, including separate property shares, the Right of Survivorship and what happens to each owner's share on death.

Joint Tenants

Both owners have rights to the whole property rather than separate beneficial shares.

When one owner dies, the property passes automatically to the survivor through the Right of Survivorship. You cannot use your Will to leave a separate share of the property to someone else.

Tenants in Common

Each owner has a defined beneficial share of the property. This is often 50/50, although the shares do not have to be equal.

When one owner dies, their share does not automatically pass to the survivor. It can instead pass according to their Will — including into a Life Interest Trust.

How do you change from Joint Tenants to Tenants in Common?

The process is known as severance of the joint tenancy. HM Land Registry explains that an application can be made to register a Form A restriction, commonly using Form SEV where appropriate.

You can read the official guidance here: GOV.UK: Change from Joint Tenants to Tenants in Common .

Why this matters: If the beneficial joint tenancy has not been severed, survivorship can override what you intended to achieve with your Will. The surviving joint owner receives the property automatically rather than your intended share passing into the Life Interest Trust.

Does becoming Tenants in Common mean my partner loses rights to the home?

No. Severing the beneficial joint tenancy does not, by itself, mean that one partner has to leave the property. It changes the way the beneficial ownership is held so that separate shares can exist.

The Life Interest Trust can then be drafted to give the surviving spouse or partner rights over the deceased's share — commonly including the right to continue living in the property, subject to the precise terms of the Trust.

In simple terms: Tenants in Common creates the separate share. The Will directs that share into the Trust. The Life Interest protects the survivor's right to benefit from it.

For a detailed comparison of these arrangements, see our Standard Wills vs Property Protection Trust Wills guide .

Can a Life Interest Trust protect my home from care fees?

Direct Answer: A properly structured Life Interest Trust can help preserve the deceased partner's share of a property for their beneficiaries. However, it should not be described as a guaranteed way of avoiding care fees. Local authority financial assessments depend on who owns the asset, the terms of the Trust and the individual circumstances.

This is an important distinction. A Life Interest Trust created by a Will generally takes effect only when the person who made the Will dies. The deceased's share can then be held by the trustees rather than being transferred outright to the surviving spouse or partner.

The key principle is ownership: the survivor may have a right to live in or benefit from the Trust property without necessarily owning the deceased's protected capital outright.

A simple example

Imagine David and Mary own a £400,000 home as Tenants in Common in equal shares.

Outright inheritance

If David leaves his share outright to Mary, she becomes beneficially entitled to that additional value. Her financial position later in life will therefore be different from one where David's share remains held in Trust.

Life Interest Trust

If David's share passes into a Life Interest Trust, the trustees hold that share under the terms of his Will. Mary can be given rights to occupy or benefit from it without David's capital simply being gifted to her outright.

What about deprivation of assets?

Deprivation of assets is a separate issue. Local authorities can consider whether a person has deliberately deprived themselves of assets in order to reduce the amount they may be required to pay towards care.

The Care and Support statutory guidance explains that the circumstances and motivation behind a disposal can be relevant when deciding whether deprivation has occurred. You can read the official guidance here: GOV.UK: Care and Support Statutory Guidance .

Important: Be cautious of anyone promising that a Trust will make your home "100% safe from care fees." Care funding rules are complex and fact-specific. A Life Interest Trust should form part of legitimate estate and succession planning, not be sold as a guaranteed care-fee avoidance scheme.

For homeowners, the wider objective is often to balance security for the surviving partner with greater certainty over where the deceased's share ultimately passes.

You can also read our Property Protection Trust Wills guide for more information about protecting a share of the family home through your Will.

How does a Life Interest Trust affect Inheritance Tax?

Direct Answer: A Life Interest Trust does not automatically reduce Inheritance Tax. The tax treatment depends on the type of Trust, who receives the Life Interest and who ultimately inherits. Where a qualifying interest is given to a surviving spouse or civil partner, important spouse exemption rules may apply.

This is an area where the precise wording of the Will matters. For Inheritance Tax purposes, certain Life Interest arrangements created on death can be treated as an Immediate Post-Death Interest (IPDI).

Where the person receiving the qualifying interest is the deceased's spouse or civil partner, the spouse exemption can potentially apply to the transfer into the Trust, subject to the relevant tax rules and individual circumstances.

In practical terms, a Life Interest Trust can allow you to provide for your spouse or civil partner without necessarily giving them outright ownership of the underlying capital.

What happens when the Life Tenant dies?

The Inheritance Tax position does not simply disappear because an asset is held in Trust. Depending on the type of interest created, Trust property can be treated as part of the Life Tenant's estate for Inheritance Tax purposes when they die.

This is one reason Life Interest Trust planning should be considered alongside the value of the whole estate, the beneficiaries, available exemptions and the Nil Rate Band and Residence Nil Rate Band.

Does a Life Interest Trust save Inheritance Tax?

Not necessarily. The primary purpose is often control and protection of succession rather than simply reducing tax.

For example, a homeowner may want their surviving spouse to remain secure in the family home while ensuring that their share ultimately passes to their children. The Trust provides the legal framework for that objective; the tax consequences then need to be considered as part of the wider estate plan.

Important: Being unmarried can materially change the Inheritance Tax position. The spouse exemption applies to spouses and civil partners, not simply to couples who live together. Unmarried couples considering a Life Interest Trust should therefore take specific advice on the potential tax consequences.

HMRC provides detailed guidance on the taxation of Trusts and estates: GOV.UK: Trusts and Taxes .

Inheritance Tax and Trust taxation can be complex, particularly where property, spouses or civil partners and future beneficiaries are involved. The tax position should therefore be considered alongside the wider objectives of your Will and estate plan.

Who controls a Life Interest Trust and can the survivor sell the house?

Direct Answer: The trustees are responsible for administering the Life Interest Trust according to the terms of the Will. A well-drafted property Trust can allow the surviving spouse or partner to remain in the home and may also provide flexibility to sell, move or downsize, with the Trust's interest transferred into replacement property or other Trust assets.

What does a trustee actually do?

Trustees are legally responsible for looking after the assets held in the Trust and following the instructions contained in the Will. Their role is different from that of the Life Tenant, who is the person entitled to benefit from the Trust during their lifetime.

Depending on the terms of the Will, trustees may need to deal with matters such as property sales, replacement properties, Trust money, investments and ultimately distributing the Trust assets to the final beneficiaries.

Choosing trustees matters. They may be required to make important decisions involving both the surviving partner and the beneficiaries who will eventually inherit the Trust capital.

Can the surviving partner sell the family home?

A Life Interest Trust does not necessarily mean the survivor is trapped in the same property for the rest of their life. The precise position depends on the wording of the Will, but a properly drafted Trust can provide flexibility for the property to be sold.

For example, the survivor may decide that the family home is too large after their partner's death and wish to downsize. The trustees may be able to sell the original property and apply the Trust's share towards the purchase of a replacement home.

The important point is that selling the original house does not necessarily end the Trust. The protected value can potentially follow the survivor into a replacement property, subject to the terms of the Will and the trustees' powers.

What happens if the survivor downsizes?

If a cheaper replacement property is purchased, the treatment of any surplus money will depend on the Trust provisions. The Trust's proportion may remain within the Trust rather than automatically becoming the survivor's personal capital.

This is why flexibility needs to be considered when the Will is drafted. A Trust designed around a family home should anticipate that the survivor's housing needs may change considerably over the following years.

When does a Life Interest Trust end?

Many Life Interest Trusts end when the Life Tenant dies. However, the Will can specify other circumstances in which the Life Interest ends or changes, so the actual Trust document must always be checked.

Once the Life Interest has ended, the trustees deal with the Trust capital according to the Will. The assets can then pass to the remainder beneficiaries — commonly the deceased's children or other chosen beneficiaries.

In simple terms: the survivor receives the lifetime benefit, the trustees administer the protected assets, and the remainder beneficiaries ultimately receive the capital when the Life Interest ends.

You can read more about the responsibilities of trustees in the official GOV.UK guidance for trustees .

Life Interest Trust Example: What happens to a £400,000 family home?

The Example: David and Mary own a £400,000 home as Tenants in Common, with each owning a 50% beneficial share worth £200,000. David wants Mary to have the security of remaining in the home after his death, but he also wants his £200,000 share ultimately to pass to their children.

Option 1: David leaves his share to Mary outright

David dies and his £200,000 share passes outright to Mary.

Mary then owns the entire beneficial interest in the property. David's original share is no longer separately protected for the children.

David's intention may still be that the children inherit eventually, but he no longer controls what happens to that £200,000 after it has passed outright to Mary.

Option 2: David creates a Life Interest Trust

Instead of leaving his £200,000 share to Mary outright, David's Will directs his share into a Life Interest Trust.

Mary can be given the right to continue living in the property for her lifetime, subject to the terms of the Trust.

David's £200,000 share remains subject to the Trust, with his chosen beneficiaries — for example, his children — entitled to the capital when Mary's Life Interest ends.

Mary's Own Share £200,000 Mary's 50% beneficial share

David's Trust Share £200,000 Held under the Life Interest Trust

What happens when Mary dies?

When Mary's Life Interest ends, the trustees deal with David's Trust share according to the instructions in his Will. If David named his children as the remainder beneficiaries, his protected share can then pass to them.

Mary's own £200,000 share remains part of her estate and passes according to her own estate-planning arrangements.

The key difference: an outright gift gives Mary ownership of David's share. A Life Interest Trust can instead give Mary security and use of that share while preserving David's instructions about who ultimately receives the capital.

This structure is particularly relevant where couples want to balance the needs of a surviving spouse or partner with the inheritance expectations of children, stepchildren or beneficiaries from an earlier relationship.

Life Interest Trust Wills: Frequently Asked Questions

What is the main purpose of a Life Interest Trust?

The main purpose is to allow one person to benefit from an asset during their lifetime while preserving the underlying capital for other beneficiaries. In estate planning, this is commonly used to provide security for a surviving spouse or partner while protecting an inheritance for children or other chosen beneficiaries.

Is a Life Interest Trust the same as a Property Protection Trust?

The terms are closely related but should not always be treated as identical. A Life Interest Trust describes a Trust in which somebody has a right to benefit during their lifetime. A Property Protection Trust Will commonly uses a Life Interest structure specifically to deal with a share of the family home.

Does the surviving spouse own the property in a Life Interest Trust?

Not necessarily. The survivor may own their existing share of the property while having a Life Interest in the deceased's share. The trustees hold and administer the Trust assets according to the terms of the Will.

Can the surviving partner move house or downsize?

Potentially, yes. A properly drafted Trust can give the trustees powers to sell the original property and use the Trust's interest towards a replacement home. The exact rights and powers depend on the wording of the Will and Trust.

Can a Life Interest Trust protect against remarriage?

It can reduce the risk of the deceased's protected share simply becoming part of the survivor's estate. This can be particularly useful where there are children from a previous relationship or concerns about sideways disinheritance.

Does a Life Interest Trust guarantee protection from care fees?

No. A Life Interest Trust should not be sold as a guaranteed way of avoiding care fees. Local authority financial assessments are fact-specific and can involve ownership, Trust provisions and deprivation-of-assets rules. Its primary purpose should be legitimate estate and succession planning.

Who should consider a Life Interest Trust Will?

They can be particularly relevant for homeowners, married couples and civil partners, blended families, second marriages, and people who want to provide for one person during their lifetime while ultimately leaving assets to different beneficiaries.

What happens to the Trust when the Life Tenant dies?

The Life Interest will commonly end on the Life Tenant's death. The trustees then administer and distribute the Trust assets according to the Will, normally passing the capital to the named remainder beneficiaries.

Is a Life Interest Trust right for you?

A Life Interest Trust can be an effective way to balance two objectives that can otherwise conflict: providing security for the person you leave behind while retaining greater control over who ultimately inherits your assets.

The right structure depends on your property ownership, family circumstances, beneficiaries, tax position and what you want your surviving spouse or partner to be able to do after your death.

This is why the Trust provisions, your Will and — where relevant — the ownership of your property should be considered together rather than in isolation.

Protect Your Partner. Protect Your Legacy.

Speak to Andrew Walters, Member of the Society of Will Writers, about whether a Life Interest Trust Will is suitable for your family and property.

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Important: This guide provides general information about Life Interest Trust Wills and should not be treated as personalised legal, tax or financial advice. Trust and tax treatment depends on individual circumstances and the precise wording of the Will and Trust.