Property protection trust in a will: how it works and what it really protects

One house, two sets of children: the problem this trust exists to solve

Leave everything to each other, then to the children. It is the standard couples' will, and it contains a quiet assumption: that the survivor will never remarry, never rewrite their will, never face financial pressure that redirects the family home away from the people both partners intended. A property protection trust (also sold as a "home protection trust" or "family protection trust in a will") removes that assumption. Instead of leaving your share of the home outright to your partner, your will leaves it into a life-interest trust. Your partner keeps the right to live in the home for the rest of their life, but your share is ring-fenced for the beneficiaries you named, and nothing the survivor later does can redirect it.

This article explains the two-step structure, the practicalities for the survivor, the inheritance tax position, and the care-fee question, which deserves a more honest treatment than it usually gets. It covers England and Wales, and it is general information rather than legal or financial advice.

Step one: you cannot leave a share you do not own

Most couples buy their home as joint tenants. Under GOV.UK's joint property ownership guidance, joint tenants each have equal rights to the whole property, and when one dies the property passes automatically to the survivor. Crucially, a joint tenant "cannot pass on the property in a will". Write the most elegant trust clause in the world and it will do nothing, because survivorship moves the house before the will is even read.

So the first step is converting to tenants in common, where each partner owns a distinct share (usually half each) that does pass under their will. This is called severing the joint tenancy. Per GOV.UK's severance guidance, you apply for a Form A restriction using form SEV sent to HM Land Registry, there is no fee, and one owner can do it without the other's agreement provided a notice of severance is properly served. Couples doing this as part of will planning normally sign together.

Once the ownership is split, each partner's will leaves their share of the home into the trust, with the other partner as the life tenant and (typically) the children as the final beneficiaries. Whoever dies first, their share goes into trust; the survivor's own share stays theirs absolutely.

How life in the house actually works after the first death

The survivor's position under a well-drafted trust is deliberately close to normal ownership in daily life:

• Right to occupy. The survivor can live in the home for life (or until remarriage or cohabitation, if the will says so, though many wills deliberately do not impose that condition).
• Right to move. The trust can usually sell the property and buy a replacement, with the trust's share rolling into the new home. Downsizing works too: the trust's half of the sale proceeds transfers into the smaller property and any surplus stays in trust.
• Bills and upkeep. The life tenant normally covers routine outgoings, insurance and maintenance, as the person with the benefit of occupation.
• Trustees. The trust is run by trustees named in the will, often the survivor alongside one or two adult children or a professional, which keeps the survivor involved in decisions like moving house.

On the survivor's death the trust ends and the ring-fenced share passes to the first partner's chosen beneficiaries. The survivor's own share passes under the survivor's will. Two halves, two routes, one house.

Worked example: a blended family with a £420,000 home

Raj and Carol are both in their second marriage. Raj has two adult children from his first marriage; Carol has a son. Their home is worth £420,000 and they own it as joint tenants, with £180,000 in other assets between them.

With mirror wills leaving everything outright: if Raj dies first, Carol owns the entire house. If Carol later remarries, her existing will is revoked automatically. If she then dies without a new will, intestacy could pass most or all of the estate, including what was Raj's half of the home, to her new husband and her son, leaving Raj's children with nothing but an uncertain court claim. The dynamics are the same ones covered in our guide to blended families and inheritance rights.

With a property protection trust: Raj and Carol sever the joint tenancy (form SEV, no fee) and each make a will leaving their half share into a life-interest trust for the other, remainder to their own children. Raj dies first. Carol lives in the house for the rest of her life, moves to a £300,000 bungalow ten years later (the trust's half rolls into it, £60,000 of surplus stays in trust), and eventually remarries. None of that touches Raj's ring-fenced share. On Carol's death, Raj's children receive the trust's share of the bungalow plus the invested surplus, and Carol's son inherits her half under her will.

Event after first death	Everything left outright	Property protection trust
Survivor remarries	Old will revoked; whole house exposed to new spouse's claims	Trust share unaffected; only survivor's own half at stake
Survivor rewrites their will	Can redirect the entire house	Can redirect only their own half
Survivor downsizes	Keeps all proceeds absolutely	Trust's share rolls into new home; surplus stays ring-fenced
Second death	Whole estate passes under survivor's final will (or intestacy)	Trust share goes to first partner's chosen beneficiaries, guaranteed

The inheritance tax position: mostly neutral, with two points to watch

For married couples and civil partners, a property protection trust is broadly inheritance tax neutral. The survivor's life interest is an immediate post-death interest, so on the first death the trust share is treated as passing to the spouse and the spouse exemption applies, exactly as an outright gift would. On the second death, GOV.UK's guidance on trusts and inheritance tax confirms the treatment of an interest in possession inherited from someone who has died: there is no ten-yearly charge, and instead the trust assets are taxed at 40% as part of the life tenant's estate when they die. The survivor's estate therefore includes both halves of the home, just as it would without the trust, and the usual allowances apply: the £325,000 nil-rate band (frozen until 5 April 2031), the transferable allowance between spouses, and the residence nil-rate band of up to £175,000 where the home ends up with children, grandchildren or other direct descendants.

The two points to watch. First, the residence nil-rate band depends on the home passing to direct descendants, so the trust's final beneficiaries and drafting style matter; a life-interest trust with the children as remainder beneficiaries generally preserves it, while a fully discretionary trust can put it at risk. Second, for unmarried couples there is no spouse exemption, so the share entering the trust on the first death uses that partner's own nil-rate band, and the survivor's later estate position needs separate thought. Our guides to the married couples' threshold and RNRB and the ten-year charge on other trust types cover the surrounding rules, and the inheritance tax pillar guide gives the full picture.

One admin point: a will trust wound up within two years of death is excluded from HMRC's Trust Registration Service, but a property protection trust is designed to last the survivor's lifetime, so the trustees will normally need to register it once it runs past that two-year mark, even where no tax is due.

Care fees: what the structure does, and what nobody can promise

This is where marketing often runs ahead of the law, so here are the facts stated plainly. In England, a person paying for care is means-tested against capital limits set out in the 2026 to 2027 local authority charging circular: above £23,250 of assessable capital you pay the full cost, between £14,250 and £23,250 you contribute from capital on a tariff, and below £14,250 only income is assessed. After the first death, the survivor owns only their own share of the home; the trust share belongs to the trust. On that mechanical level, the deceased partner's share is generally not the survivor's asset if the survivor is later means-tested.

But there is a significant caveat. Annex E of the Care Act statutory guidance gives local authorities power to treat someone as still possessing assets they deprived themselves of where avoiding care charges was a significant motive, with no time limit equivalent to the seven-year rule for gifts. How those rules interact with a trust that only arises on a partner's death is genuinely debated: wills made years earlier as ordinary estate planning, for reasons like the blended-family scenario above, are hard to characterise as deprivation, while arrangements made when care needs are already on the horizon, or promoted primarily as fee-avoidance schemes, are far more exposed to challenge. The honest summary: a property protection trust changes what the survivor legally owns, it does not confer immunity from means-testing rules, and any firm selling it as guaranteed care-fee protection is overstating the position.

Not to be confused with a declaration of trust

Two similarly named documents do very different jobs, and it is worth being precise. A declaration of trust for jointly held property is a lifetime document: it records how living co-owners hold a property today, for instance 70/30 to reflect unequal deposits, and it drives things like income splits and capital gains positions while everyone is alive. A property protection trust is a death arrangement: it exists only inside a will, does nothing until the first partner dies, and is about controlling where a share of the home goes afterwards. They often appear in the same planning exercise, because becoming tenants in common raises the question of recording the shares, but conflating them leads to real mistakes, like assuming a declaration of trust protects an inheritance, or that a will trust affects this year's tax return.

Costs, drafting and getting it done properly

Expect a specialist-drafted pair of wills with property trust provisions to cost more than simple mirror wills, commonly in the low-to-mid hundreds of pounds from a will writer and more from a solicitor, plus the (free) severance of the joint tenancy. What you are paying for is drafting quality: the survivor's power to move house, the treatment of sale surpluses, trustee choices and the residence nil-rate band position all live in the wording. Our making a will checklist is a useful way to gather the decisions before you sit down with anyone, including who your trustees and final beneficiaries would be. If your situation involves a blended family, an unmarried partnership or a property already held in unequal shares, this is a structure worth discussing with an estate planning specialist who can weigh the trust against simpler routes, such as life insurance written in trust for liquidity, and tell you honestly whether your circumstances justify the extra moving parts.