Establishing a Trust Fund in the UK: How Trusts Work, Types, Costs, and Common Mistakes

Establishing trust fund is one of the most powerful tools available to UK families for managing inheritance, protecting assets, and ensuring wealth passes to the next generation in an orderly way. Yet trusts are also one of the most frequently misunderstood areas of estate planning — set up incorrectly, a trust can create tax liabilities rather than reduce them, cause family conflict, or fail to achieve the protection it was intended to provide. This guide explains how trusts work in the UK, the main types available, the costs involved, the tax implications, and the critical mistakes to avoid.

What Is a Trust Fund and How Does It Work in the UK?

A trust is a legal arrangement in which one or more people (the trustees) hold assets on behalf of one or more other people (the beneficiaries), according to terms set out in a trust deed. The person who creates the trust and transfers assets into it is called the settlor.

The key principle is that legal ownership of the assets is separated from beneficial ownership. The trustees hold legal title — they manage the assets and make decisions about them — but they do so for the benefit of the beneficiaries, not for themselves. The trust deed sets out the terms under which the assets are held, who the beneficiaries are, and what discretion the trustees have.

Trusts are used for a range of purposes in estate planning: protecting assets from Inheritance Tax by moving them outside the taxable estate over time; controlling when and how beneficiaries (particularly children) access assets; protecting family wealth from divorce settlements or creditors; avoiding probate delays and costs; and managing assets for vulnerable or incapacitated beneficiaries.

Types of Trust Fund in the UK

Bare Trust

A Bare Trust (also called an Absolute Trust) is the simplest form of trust. The beneficiary has an absolute, unconditional right to the trust assets from the moment the trust is created — the trustees merely hold and manage the assets on their behalf until they are old enough to receive them.

The critical characteristic of a Bare Trust is that the beneficiary gains full legal access to the assets at age 18 in England and Wales (16 in Scotland). On that birthday, they can legally demand the full trust fund. This is the most tax-efficient structure for a child beneficiary because any income and gains are taxed as the child’s own — using their personal allowances — rather than at trust rates. But the loss of control at 18 is a significant consideration for many parents.

Discretionary Trust

A Discretionary Trust gives the trustees full discretion over how and when the assets are distributed to beneficiaries. The beneficiaries have no automatic right to the trust assets — the trustees decide who receives what, when, and in what amounts, within the terms of the trust deed. This provides significantly more control: parents can ensure a child only receives funds when mature enough, protect assets from a potential divorce, or distribute funds unequally between beneficiaries according to their needs.

The trade-off is greater complexity and higher tax exposure. Discretionary Trusts are subject to Inheritance Tax entry charges (when assets are transferred in), ten-year anniversary charges, and exit charges when assets leave the trust. Income not distributed to beneficiaries is taxed at the trust income tax rate (45% on general income; 39.35% on dividends from April 2023). Capital gains are taxed at the trust CGT annual exempt amount (£1,500 from 2023/24).

Interest in Possession Trust (Life Interest Trust)

In an Interest in Possession Trust, one beneficiary (the life tenant) has the right to income from the trust assets during their lifetime, after which the capital passes to other beneficiaries (the remaindermen). This structure is commonly used in wills to provide for a surviving spouse while protecting the capital for children from a previous relationship. For example, a testator might leave their estate on trust so that a spouse receives the income for life, with the capital then passing to the children.

Property Trust (including Life Interest in Property)

A Property Trust holds the family home on trust rather than allowing it to pass to a beneficiary outright. The most common form is a Life Interest in Property Trust, where one person (typically a surviving spouse) has the right to live in the property for their lifetime, after which it passes to the children. This structure is used to protect a share of the family home from care home means-testing and to ensure a property ultimately passes to children even if a surviving spouse remarries.

Comparison of Main Trust Types

Trust Type	Beneficiary Control	Best For	Tax Treatment	Typical Cost
Bare Trust	Absolute right at 18	Children’s savings; tax-efficient simple structures	Beneficiary’s own tax rates	£500–£1,500
Discretionary Trust	Trustees decide	Control over distribution; protecting from divorce	Trust tax rates (45%/39.35% income); 10-year charges	£2,500–£5,000+
Interest in Possession	Life tenant receives income	Providing for spouse while protecting capital for children	Life tenant taxed on income at personal rates	£1,500–£4,000
Property/Life Interest Trust	Life tenant can live in property	Protecting family home; care fee planning	Complex — IHT and CGT implications on disposal	£1,500–£4,000

The Biggest Mistakes When Establishing a Trust Fund

1. Gift with Reservation of Benefit

The most significant single mistake in trust planning involving property is the Gift with Reservation of Benefit (GWRB) trap. If you transfer your home into a trust but continue to live there rent-free, HMRC treats the gift as never having been made for Inheritance Tax purposes — the property’s full value remains in your taxable estate, regardless of how many years you survive after the transfer.

To avoid this, you must either vacate the property completely after transferring it to the trust, or pay a full market rent to the trustees from the date of transfer. The market rent itself is then trust income, taxable in the trust and potentially in the beneficiaries’ hands. This significantly reduces the practical tax benefit for most people who want to continue living in their home.

2. Choosing the Wrong Trust Type

Many parents choose a Bare Trust because it is simpler and cheaper, without fully understanding that the beneficiary gains absolute legal access to all assets at 18. For a child who will be mature and responsible at 18, this may be fine. For a child whose parents have concerns about their financial maturity, or where the assets are substantial, the loss of all control at 18 can undermine the entire purpose of the trust. A Discretionary Trust costs more to establish and run, but provides ongoing control throughout the trustees’ lifetimes.

3. Failing to Register with the Trust Registration Service

All express trusts (trusts created deliberately, as opposed to arising by operation of law) must be registered with HMRC’s Trust Registration Service (TRS) within 90 days of creation. This applies even to non-taxable trusts — the registration requirement is broad. Failure to register can result in HMRC penalties, with deliberate non-compliance attracting fines of up to £5,000 per trust. This is a straightforward administrative requirement that many people fail to complete, particularly when establishing a simple Bare Trust without professional assistance.

4. Ignoring the Ten-Year Anniversary Charge

Discretionary Trusts are subject to a periodic charge every ten years on the value of assets in the trust above the Nil-Rate Band (£325,000 as of 2026). The maximum rate is 6% of the excess above the NRB. For a trust holding £500,000 of assets, this would be up to 6% of £175,000 = £10,500 every ten years. This is often not factored into the initial cost-benefit analysis of establishing a Discretionary Trust, and can significantly affect the long-term benefit of the arrangement.

5. Appointing Unsuitable Trustees

Trustees have significant legal responsibilities and fiduciary duties — they must act in the best interests of the beneficiaries, manage the assets prudently, keep proper accounts, and comply with tax reporting requirements. Appointing family members as trustees without considering whether they have the capacity, time, and relationship stability to fulfil these duties over potentially decades can create serious problems. Trustee deadlock — where two trustees are in conflict — can require expensive legal resolution. Professional trustees (solicitors or trust companies) avoid these issues but charge ongoing fees.

6. Treating Care Home Fee Planning as Straightforward

Putting assets into a trust to protect them from local authority care home fee assessments is sometimes viable but carries significant risk. If a local authority determines that you transferred assets into a trust primarily to avoid care home fees — and you subsequently need residential care — they can apply the Deliberate Deprivation of Assets rule and assess you as if you still owned the assets. The relevant test is whether, at the time of transfer, you could reasonably have foreseen needing care. This assessment is highly fact-specific and requires specialist legal advice.

Putting Your House in Trust: Key Considerations

Placing a property in trust is one of the most significant and irreversible estate planning steps a homeowner can take. The key considerations are as follows.

Inheritance Tax Implications

Transferring your home into a Discretionary Trust is a Chargeable Lifetime Transfer (CLT) for IHT purposes. If the value of the transfer exceeds the available Nil-Rate Band (£325,000 per individual), an immediate IHT charge of 20% applies to the excess at the time of transfer. The full seven-year rule applies to CLTs — if you survive seven years from the date of transfer, the IHT charge is removed entirely.

Transferring into a Bare Trust or Interest in Possession Trust is a Potentially Exempt Transfer (PET) — no IHT arises at the time of transfer, but the full value remains in the estate if you die within seven years (with tapered relief if you survive between three and seven years).

Capital Gains Tax

Transferring your main home into a trust does not normally trigger Capital Gains Tax because of Principal Private Residence relief — the CGT exemption for your main home. However, if the property has previously been rented or is not your main residence, CGT may arise on transfer. The CGT annual exempt amount for trusts is significantly lower than for individuals (£1,500 from 2023/24 compared to £3,000 for individuals from 2024/25), meaning trusts that hold property are less CGT-efficient than individual ownership. The CGT rate on residential property disposed of by a trust is 24%.

Stamp Duty Land Tax

Transferring property into a trust may trigger Stamp Duty Land Tax (SDLT) depending on the terms of the transfer and any consideration paid. Where property is transferred to trustees who are connected persons and there is no consideration, SDLT is typically not chargeable. However, if the trust is taking on a mortgage on the property, SDLT may apply on the outstanding mortgage value. SDLT rules for trusts are complex and specialist conveyancing advice is essential.

How Much Does It Cost to Set Up a Trust Fund in the UK?

Cost Item	Typical Range	Notes
Bare Trust (simple)	£500–£1,500	Professional draft of trust deed; straightforward arrangements
Discretionary Trust	£2,500–£5,000+	Bespoke trust deed; legal and tax advice; complex arrangements
Property/Life Interest Trust	£1,500–£4,000 + VAT	Plus Land Registry fees (£40–£300 depending on value)
Trust Registration Service registration	Nil (DIT registration)	Done online; no HMRC fee but professional fee if solicitor registers
Annual trust tax return	£300–£1,000+	If trust has taxable income or gains; self-assessment return required
Ten-year anniversary charge (Discretionary)	Up to 6% of assets over NRB	E.g., up to £10,500 on £500,000 trust every 10 years
Professional trustee fees (ongoing)	0.5%–1.5% of asset value per year	If using a professional trust company or solicitor as trustee

The hidden lifetime cost of trust management — annual tax returns, ten-year charges, trustee fees, and potential legal costs for disputes — is frequently underestimated at the point of establishment. A trust that costs £3,000 to set up can cost considerably more over a 20–30 year lifespan.

Inheritance Tax and Trusts in 2026

The UK’s Inheritance Tax framework is a critical context for trust planning decisions in 2026.

• Nil-Rate Band: The Nil-Rate Band (NRB) — the threshold below which an estate pays no IHT — remains at £325,000 per person, frozen until 2030. Combined with the Residence Nil-Rate Band (£175,000 for a main residence passing to direct descendants) and transferable allowances between spouses, a married couple can potentially pass up to £1 million to children free of IHT under current rules.
• IHT Rate: IHT is charged at 40% on the value of an estate above the available thresholds. For assets transferred into a Discretionary Trust above the NRB, the entry charge rate is 20%.
• Pension changes from April 2027: The Government has announced that unused defined contribution pension funds will be brought into the IHT net from 6 April 2027. This is a significant change for those who had treated pension funds as an IHT-efficient way to pass wealth to children. The practical implication is that spending down pension funds during retirement, or making lifetime gifts from other assets, becomes more tax-efficient relative to leaving pension pots intact to pass on.
• Seven-year rule: Gifts made during a person’s lifetime that are Potentially Exempt Transfers (PETs) become fully exempt from IHT if the donor survives seven years from the date of the gift. Gifts that are Chargeable Lifetime Transfers (CLTs) — typically transfers into Discretionary Trusts — are potentially liable to IHT if the donor dies within seven years, with tapering relief applying between years three and seven.

Setting Up a Trust Fund for a Child: Step-by-Step

1. Define your objectives: What are you trying to achieve? Inheritance Tax mitigation, controlling when a child accesses funds, protecting assets from divorce, or long-term wealth management? Your objectives determine which trust type is appropriate.
2. Choose the trust type: Based on your objectives, select between Bare Trust (simplicity and tax efficiency, loss of control at 18), Discretionary Trust (control, but higher ongoing costs), or a specialist structure for property.
3. Appoint trustees: Choose trustees who are trustworthy, capable, and likely to remain in a suitable relationship with each other and the beneficiaries over the long term. Consider appointing a professional trustee alongside family members for complex or high-value trusts.
4. Draft the trust deed: Engage a solicitor experienced in trust law to draft the trust deed. This is not a task for a DIY approach — the trust deed is a legally binding document that determines the trust’s tax treatment and the rights of all parties.
5. Register with the Trust Registration Service: Register the trust with HMRC’s TRS within 90 days of creation. The TRS is available online at gov.uk. Failure to register is a compliance breach.
6. Transfer assets into the trust: Execute the transfer of the relevant assets — cash, investments, property — into the trust. For property, a formal transfer and Land Registry update is required.
7. Consider a Letter of Wishes: For Discretionary Trusts, prepare a Letter of Wishes — a non-binding document guiding the trustees on your intentions for distributions. This is not legally enforceable but provides important guidance for trustees making decisions after the settlor’s death or incapacity.

Frequently Asked Questions

How do trusts work in the UK?

A trust is a legal arrangement where trustees hold assets for the benefit of beneficiaries, according to a trust deed. The settlor (the person creating the trust) transfers assets to the trust, separating legal ownership (held by trustees) from beneficial ownership (enjoyed by beneficiaries). Trusts are used in estate planning to manage Inheritance Tax, control when beneficiaries access assets, protect wealth from divorce or creditors, and avoid probate.

Can I still live in my house if it is in a trust?

Yes, but to avoid the Gift with Reservation of Benefit rule, you must pay a full market rent to the trust from the date of transfer. If you continue to live in the property rent-free after transferring it to a trust, HMRC treats the gift as never having been made — the property’s full value remains in your taxable estate for IHT purposes, defeating the purpose of the transfer.

Does a trust fund count in a UK divorce settlement?

It depends on the type of trust. Assets in a Bare Trust are treated as the beneficiary’s own property and are typically included as a financial asset in divorce proceedings. Assets in a Discretionary Trust are harder to claim because the beneficiary has no automatic right to any specific amount — the trustees have discretion. However, courts can and do take trust assets into account, particularly where the trust was set up by a spouse or where the beneficiary has received regular distributions suggesting a pattern of entitlement.

Does putting a house in trust avoid care home fees?

Potentially, but with significant risk. If a local authority determines you transferred the property primarily to avoid care home fees — and you could reasonably have foreseen needing care at the time of transfer — they can apply the Deliberate Deprivation of Assets rule and assess you as if you still owned the property. This is a fact-specific assessment. The protection is more reliable if the transfer was made well before any care needs arose and for clearly documented non-avoidance reasons.

What is the penalty for not registering a trust with HMRC?

HMRC can issue penalty notices for failure to register with the Trust Registration Service. Fixed penalties of £100 apply for failure to register on time, escalating for continued non-compliance. Deliberate failure to register can attract a penalty of up to £5,000 per trust. Most trusts must register within 90 days of creation — this applies even to non-taxable trusts.

What is the Nil-Rate Band and how does it affect trust planning?

The Nil-Rate Band (NRB) is the threshold below which an estate does not pay Inheritance Tax — currently £325,000 per person, frozen until 2030. For trusts, the NRB determines the level above which an entry charge applies when assets are transferred into a Discretionary Trust, and the base above which ten-year anniversary charges are calculated. Married couples and civil partners can combine their NRBs (£650,000) and may also qualify for the Residence Nil-Rate Band (£175,000 each) when a main home passes to direct descendants.

Final Thoughts

Establishing a trust fund in the UK can be a highly effective estate planning tool when used correctly and matched to the settlor’s specific objectives. The key is understanding the tax implications of each trust type before committing, avoiding the Gift with Reservation of Benefit trap when property is involved, ensuring proper TRS registration, and building in realistic cost projections that include the ongoing lifetime costs of trust management rather than just the initial establishment fee.

The decisions involved — particularly for trusts holding property or significant assets — are sufficiently complex and the consequences of error sufficiently serious that professional legal and tax advice is not optional. This is an area where a one-off investment in qualified advice at the outset can prevent far more expensive problems later.This article is for general informational purposes only and does not constitute legal, tax, or financial advice. Always consult a qualified solicitor or independent financial adviser before establishing a trust.

DISCLAIMER: This article is for general informational purposes only and does not constitute legal, tax, or financial advice. Trust law and inheritance tax rules are complex and individual circumstances vary significantly. Always consult a qualified solicitor or independent financial adviser before establishing a trust.