What Is a Trust Fund? A Complete Guide for UK Families

When planning your family’s future, you may ask, what is a trust fund? It’s a question we hear all the time—and the answer could be life-changing for how you protect and pass on your wealth.

In simple terms, a trust fund is a legal arrangement that allows you to hold assets—like money, property, or investments—for the benefit of someone else, while controlling how and when those assets are used. England invented trust law over 800 years ago, and today trusts are used by ordinary UK families every day to protect children’s inheritances, plan for inheritance tax (IHT), shield assets from care fee assessments, or manage wealth responsibly across generations.

In this easy-to-read guide, we’ll explain exactly what a trust fund is, how it works under English and Welsh law, and how you can use one to secure your loved ones’ future. If you’re serious about planning ahead, book a free consultation with our estate planning specialists.

What Is a Trust Fund and How Does It Work?

A trust fund is a legal arrangement—not a separate legal entity—that involves three key roles:

• The Settlor: The person who creates the trust and places assets into it. Under English law, the settlor can also serve as one of the trustees, which means they stay involved in decisions about the trust property.
• The Trustee(s): The people who hold legal ownership of the trust assets and manage them according to the terms of the trust deed. A minimum of two trustees is required. Trustees have legal duties—known as fiduciary duties—to act in the best interests of the beneficiaries.
• The Beneficiary(ies): The person or people who benefit from the trust fund—for example, your children, grandchildren, or other loved ones.

When you set up a trust fund, you transfer ownership of specific assets to your trustees, who must manage them for the benefit of your chosen beneficiaries according to the rules laid out in the trust deed. This arrangement allows you to maintain influence over how your money or property is used—even after you’re gone. Because the assets are legally owned by the trustees rather than by you personally, they bypass probate delays entirely. Your family isn’t left waiting months for access while a Grant of Probate is processed—trustees can act immediately.

Types of Trust Funds in the UK

The first thing to understand about UK trust types is the primary classification: a trust is either a lifetime trust (set up while you’re alive, sometimes called an inter vivos trust) or a will trust (created through your will and taking effect on your death). Within those categories, the trust will operate in one of several ways, each with different rules and tax treatment. The most common include:

1. Bare Trusts

A bare trust gives the beneficiary an absolute right to the capital and any income at age 18 (or 16 in Scotland). These are sometimes used for children and are simple to administer—the trustee is essentially a nominee holding assets on the beneficiary’s behalf. However, bare trusts offer no long-term control or asset protection. Under the principle in Saunders v Vautier, the beneficiary can collapse the trust entirely once they reach 18 and demand the assets outright. Bare trusts are not IHT-efficient, and they cannot protect assets from care fee assessments, divorce settlements, or the beneficiary’s own poor financial decisions.

2. Discretionary Trusts

With a discretionary trust, trustees have absolute discretion over how and when to distribute income and capital to the beneficiaries. No individual beneficiary has any automatic right to the trust assets—and this is the key protection mechanism. Discretionary trusts are by far the most common type used in UK estate planning (roughly 98–99% of the trusts we set up). They can last for up to 125 years under the Perpetuities and Accumulations Act 2009, offering long-term, flexible protection across multiple generations. They’re ideal for families wanting to protect beneficiaries from divorce, creditors, poor financial decisions, or care fee assessments—all while keeping assets within the family.

3. Interest in Possession Trusts

These give an income beneficiary (called a “life tenant”) the right to receive income from the trust—or the use of trust property, such as living in a house—while the capital itself is preserved for others (called “remaindermen”). This type is commonly used in will trusts, particularly for couples in second marriages. For example, a surviving spouse can live in the family home for the rest of their life, with the property then passing to the children from the first marriage—preventing what’s known as sideways disinheritance. It’s worth noting that the tax treatment of interest in possession trusts depends on when they were created and the type of interest involved—post-March 2006 IIP trusts are generally treated under the relevant property regime unless they qualify as an immediate post-death interest (IPDI) or a disabled person’s interest.

4. Child Trust Funds (CTFs)

A Child Trust Fund is a specific government savings scheme for children born between 1 September 2002 and 2 January 2011. These accounts are now maturing as those children turn 18, and the funds become accessible. CTFs are quite different from the trusts used in estate planning—they were a savings product rather than a protective legal arrangement. For genuine asset protection and IHT planning, a properly drafted discretionary trust is far more effective.

Why Set Up a Trust Fund?

Trusts are not just for the rich—they’re for the smart. With the average home in England now worth around £290,000 and the IHT nil rate band frozen at £325,000 since 2009 (confirmed frozen until at least April 2031), more and more ordinary UK homeowners are finding their estates potentially liable for 40% inheritance tax. Here are the main reasons UK families set up trusts:

• Protect a child’s inheritance until they’re mature enough to manage it responsibly—not just handing over a lump sum at 18
• Plan for inheritance tax—trusts are tax-efficient planning tools that can legitimately reduce or manage IHT liabilities over time
• Provide for vulnerable relatives without affecting their means-tested benefits
• Control how wealth is used across generations, even after your death
• Shield assets from divorce, creditors, or care fee assessments—with the UK divorce rate at around 42%, this is a real concern for many families. As Mike Pugh puts it: “What house? I don’t own a house”—that’s the power of a properly structured trust
• Bypass probate delays—trust assets aren’t frozen during the probate process, which can take 3–12 months (longer when property needs to be sold). Your will also becomes a public document once probate is granted—trust arrangements remain private

So, when asking what is a trust fund, think of it as a flexible, legally robust arrangement to manage the future of your wealth—on your terms. As Mike Pugh, founder of MP Estate Planning, puts it: “Not losing the family money provides the greatest peace of mind above all else.”

Are Trust Funds Tax Efficient?

Trusts come with specific tax rules that you need to understand, but when used correctly, they’re one of the most effective inheritance tax planning tools available under English law. Here’s a clear breakdown:

Inheritance Tax (IHT): The IHT nil rate band is £325,000 per person (frozen since 2009 and confirmed frozen until at least April 2031). There’s also a residence nil rate band (RNRB) of £175,000 per person, available when a qualifying residential interest is passed to direct descendants—children, grandchildren, or step-children. The RNRB is not available for nieces, nephews, siblings, friends, or charities, and it tapers away by £1 for every £2 the estate exceeds £2,000,000. For a married couple who can transfer unused allowances, the combined maximum tax-free threshold is £1,000,000. Placing assets into an irrevocable discretionary trust can start the 7-year clock for IHT purposes—and for most family homes with a value below the available nil rate band, there is zero entry charge.

Discretionary Trust Charges: Discretionary trusts fall under the “relevant property regime.” This means there’s a potential periodic charge every 10 years (maximum 6% of the value above the nil rate band) and proportional exit charges when assets leave the trust. For most family homes within the nil rate band, these charges work out at zero or close to zero. As a rough guide, even when exit charges do apply, they typically amount to less than 1% of the trust value—a fraction compared to a 40% IHT bill.

Important: A revocable trust provides no IHT benefit—HMRC treats the assets as still belonging to the settlor (known as a settlor-interested trust). For genuine IHT and asset protection planning, an irrevocable trust is the standard approach. Mike’s trusts use “Standard and Overriding powers” that give trustees defined flexibility without making the trust revocable.

This is why it’s so important to work with a specialist. The law—like medicine—is broad. You wouldn’t want your GP doing surgery. Setting up the wrong type of trust, or doing it without proper advice, can trigger unexpected tax consequences or fail to provide the protection you need. Book a consultation with us to find the most efficient approach for your family’s circumstances.

Who Should Consider a Trust Fund?

Trusts are ideal for a wide range of people, including:

• Parents who want to leave assets to young or vulnerable children—without handing them a lump sum at 18
• Couples in second marriages wanting to protect their children’s inheritance from sideways disinheritance
• Homeowners who want to protect their property from care home fee assessments—with average care costs running at £1,200–£1,500 per week, between 40,000 and 70,000 UK homes are sold every year to fund care. Currently, if you have capital above £23,250 in England, you’re classed as a self-funder and must pay the full cost yourself
• Grandparents wanting to pass on wealth with control and tax efficiency
• Anyone concerned about future family disputes, divorce, creditors, or financial risks—keeping families wealthy strengthens the country as a whole

If you relate to any of these, it’s time to start asking not just what is a trust fund, but which type of trust fund is right for me?

How to Set Up a Trust Fund in the UK

Setting up a trust fund involves a trust deed, careful tax planning, and choosing the right trustees. Here’s a clear overview of the process:

1. Choose the type of trust that suits your needs—a discretionary trust is the right choice for the vast majority of UK families seeking asset protection and IHT efficiency
2. Select your trustees—a minimum of two is required. The settlor can be one of the trustees, which keeps them involved in decisions. The Land Registry allows up to four trustees on a property title
3. Draft the trust deed with the help of a specialist estate planning professional—this is the legal document that sets out the trust rules, trustee powers, and beneficiary classes. A letter of wishes can also be prepared to guide trustees on how you’d like assets managed, though it isn’t legally binding
4. Transfer the chosen assets into the trust—for property without a mortgage, this is done via a TR1 form at the Land Registry, along with a Form RX1 to place a restriction on the title. If there’s a mortgage, a Declaration of Trust transfers the beneficial interest while the legal title stays with the mortgage holder (because the lender’s consent would be needed for a full transfer). Over time, as the mortgage reduces and the property value grows, that growth happens inside the trust
5. Register the trust on the Trust Registration Service (TRS) within 90 days of creation—this is now mandatory for all UK express trusts, including bare trusts. The TRS register is not publicly accessible, unlike Companies House, so your trust details remain private

DIY trusts can lead to costly mistakes that may not surface until it’s too late—by which point the damage is done and cannot easily be undone. At MP Estate Planning UK, trust setup starts from £850 for straightforward cases—roughly the equivalent of one week of care home fees. When you compare that one-time cost to potential care fees of £1,200–£1,500 per week (paid every week until your savings are depleted to £14,250), or a 40% IHT bill on everything above the nil rate band, it’s one of the most cost-effective forms of protection available. We ensure your trust is compliant, tax-efficient, and tailored to your family’s goals.

Common Questions About Trust Funds

Are trust funds only for the wealthy?

Absolutely not. With the IHT nil rate band frozen at £325,000 since 2009 and the average English home now worth around £290,000, ordinary homeowners are the people who need trust planning most. The nil rate band hasn’t increased with inflation for over 15 years—that’s the single biggest reason everyday families are now caught by IHT. Trusts are not just for the rich—they’re for the smart. Thousands of ordinary UK families use trusts for straightforward estate planning and asset protection.

Can I set up a trust for my child?

Yes. Trusts are an excellent way to hold assets for your child’s benefit while controlling when and how they receive them. A discretionary trust is generally the better choice because the trustees decide when the beneficiary is ready—rather than handing everything over automatically at 18, as happens with a bare trust. With a discretionary trust, if your child goes through a divorce, faces creditor claims, or simply isn’t financially mature, the trustees can hold the assets safely until the time is right.

What is the difference between a trust fund and a will?

A will only takes effect after death, and during the probate process all sole-name assets are frozen—bank accounts, property, investments—until a Grant of Probate is issued. The full probate process typically takes 3–12 months, and longer if property needs to be sold. A trust fund can be set up during your lifetime (a lifetime trust) or through your will (a will trust). Lifetime trusts offer more control, bypass probate delays entirely, and give your trustees the ability to act immediately rather than waiting for the Probate Registry to process the application. A will also becomes a public document once probate is granted—anyone can obtain a copy for a small fee. Trust arrangements remain private.

Can a trust protect my home from care fees?

Yes, when done properly and planned well in advance. Many families use a Family Home Protection Trust to ring-fence their home from future care fee assessments. The key is timing—you must plan years before any foreseeable need for care arises. If a local authority believes you transferred assets to deliberately avoid paying for care, they can treat you as still owning them under what’s known as the “deprivation of assets” rules. Unlike the 7-year IHT rule, there is no fixed time limit for deprivation of assets—but the longer the gap between the transfer and any care need, the harder it is for the local authority to argue that avoiding care fees was a significant reason for the transfer. At MP Estate Planning, we document multiple legitimate reasons for the trust—typically nine documented purposes—so that care fee protection is an ancillary benefit, not the primary purpose.

When Is the Best Time to Set Up a Trust Fund?

There’s no “perfect age” to create a trust—but the earlier you act, the more options you have. For IHT planning, an irrevocable lifetime trust starts the 7-year clock from the date of transfer. If the settlor survives seven years, the value of the assets transferred falls outside their estate completely. For care fee protection, the longer the gap between setting up the trust and any potential care need, the stronger your position against any deprivation of assets challenge.

Trusts set up as part of long-term planning—rather than last-minute, panic-driven decisions—are far more likely to achieve their objectives and stand up to scrutiny. As we always say: plan, don’t panic.

Start Planning with Professional Support

Trusts can be powerful tools—but only when set up correctly by someone who specialises in this area. If you’re still wondering what is a trust fund and how it could help your family, the best next step is to speak with a specialist.

• Book a free consultation with our estate planning team today
• Or explore our affordable trust planning packages—we’re the first and only company in the UK that actively publishes all our prices on YouTube

We’ll guide you through your options and help you set up a trust fund that protects what matters most—keeping your family’s wealth where it belongs, with your family.