Understanding Trusts - A Plain-English Guide

This guide explains trusts from the ground up, in everyday language, and then walks through each of the main types. It is written for someone with no legal background. Where a formal or technical name exists, it is given in brackets so you can look it up, but you never need it to follow the plain explanation. Figures and rules are for England & Wales and are current at the time of writing; tax thresholds change, so always confirm before relying on them.

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Part 1 - What is a trust?#

A trust is simply a legal way of looking after something - usually money, property, or investments - on behalf of someone else.

Normally, if you own something, you both control it and benefit from it. A trust splits those two things apart. Instead of handing an asset directly to a person, you hand it to people you trust, along with a set of instructions about who should benefit from it and how. Those people manage the asset, but they are not allowed to treat it as their own - they must look after it for the people it is meant to help.

That split is the single idea that makes trusts work. Everything else is a variation on it.

The three roles#

Every trust involves three roles (one person can sometimes fill more than one):

• The settlor - the person who puts the assets into the trust and sets the rules. (If the trust is created by a will, this person is the one who made the will.)
• The trustees - the people who hold and manage the assets. On paper they are the legal owners, but they must follow the trust's rules and the law, and act only in the beneficiaries' interests.
• The beneficiaries - the people (or, in some cases, causes such as charities) who benefit from the trust.

Legal ownership vs beneficial ownership#

This is the heart of it, so it is worth stating plainly:

• Legal ownership is the "on paper" ownership - the right to manage, sign documents, and deal with the asset. This belongs to the trustees.
• Beneficial ownership is the right to actually enjoy the asset - to receive the income, live in the house, or eventually take the money. This belongs to the beneficiaries.

A trust is the arrangement that keeps these two apart, so that one group of people looks after something for the benefit of another.

Why do people use trusts?#

Trusts are used for very human reasons:

• To look after money for children until they are old enough to handle it.
• To provide for someone who cannot manage money themselves - for example a person with a disability or a serious illness - without putting them at risk.
• To control what happens after death - for instance letting a surviving spouse live in the family home for the rest of their life, while making sure the home eventually passes to the children.
• To protect assets from being lost through divorce, business failure, creditors, or care-home fee assessments.
• To manage inheritance tax and pass wealth down efficiently.
• To keep flexibility when the future is uncertain and you cannot predict who will need what.

The "letter of wishes"#

Where trustees are given choices (see discretionary trusts below), the settlor usually writes a letter of wishes - an informal, private note explaining how they would like the trustees to use their judgement. It is not legally binding, but good trustees take it seriously. It lets the settlor guide things without locking the trust into rigid rules.

When does a trust start?#

There are two moments a trust can begin:

• During your lifetime - you set it up and put assets in while you are alive (a lifetime trust).
• On death, through your will - your will creates the trust and directs assets into it when you die (a will trust).

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Part 2 - The one distinction that shapes everything#

Almost every trust you will ever meet is built on one of three basic structures. They differ in a single question: who is entitled to what? Get this, and the rest of the guide falls into place.

1. Bare trust - "it's really yours; someone just holds it for you"#

In a bare trust, the beneficiary genuinely owns the asset outright. The trustee is little more than a name on the paperwork, holding it to the beneficiary's order. A common example is a grandparent holding shares or savings "for" a grandchild.

The beneficiary's right is fixed and complete from day one. Once they turn 18 and are of sound mind, they can simply demand the asset and bring the trust to an end.

In short: full, fixed ownership - the trustee is just a caretaker.

2. Interest in possession - "you enjoy it now; someone else gets it later"#

In an interest in possession trust (also called a life interest trust), one person has the right to benefit now - for example to receive the income, or to live in a property - while someone else is lined up to receive the asset itself later.

The classic example: "my spouse can live in our house and receive the income from my investments for the rest of their life; after they die, everything passes to our children."

• The person benefiting now is the life tenant.
• The people who take the capital later are the remaindermen.

In short: a present right to benefit, with the capital earmarked for others afterwards.

3. Discretionary trust - "nobody's promised anything; the trustees decide"#

In a discretionary trust, no one is guaranteed anything. There is a pool of potential beneficiaries, and the trustees choose who receives what, how much, and when - usually guided by the settlor's letter of wishes.

A beneficiary only has a hope of benefiting, plus the right to be fairly considered. This makes discretionary trusts the most flexible and the best for protecting assets, because nothing is fixed in any one person's hands. The trade-off is more tax and more administration (explained next).

In short: maximum flexibility and protection - the trustees hold the reins.

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Part 3 - A quick word on tax#

You don't need to master trust tax to understand the types, but a little orientation helps, because tax is often why one type is chosen over another.

Three taxes can touch a trust:

• Inheritance Tax (IHT) - a tax on wealth passed on, either during life or on death.
• Income Tax - on income the trust earns (rent, interest, dividends).
• Capital Gains Tax (CGT) - on the increase in value when assets are sold.

A few terms come up repeatedly:

• Nil-rate band (NRB) - the tax-free inheritance allowance, currently £325,000 per person. Wealth above it is generally taxed at 40% on death.
• Residence nil-rate band (RNRB) - an extra allowance (up to £175,000) when a home is passed to children or grandchildren.
• The "relevant property regime" - this is the key one for trusts. For any trust where no one has a fixed entitlement (chiefly discretionary trusts), HMRC applies a special set of IHT charges:
  • an entry charge when assets go in above the allowance (20% on the excess),
  • a ten-yearly charge (up to 6% of the value) on each tenth anniversary, and
  • an exit charge when assets leave the trust. This is the price of the flexibility a discretionary trust gives you.

As a rough rule: bare and interest in possession trusts are usually treated as though a specific person owns the assets, so they sit outside this special regime. Discretionary trusts sit inside it. Each entry below notes where it falls.

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Part 4 - The main types of trust#

The types below are grouped into families. Within each family, everything is a variation on one of the three basic structures from Part 2.

A. The "life interest" family#

These all give someone a right to benefit now, with the asset passing on later. They are the workhorses of will planning.

Interest in possession (life interest) trust The base version. One person (the life tenant) has a present right to the income or to occupy a property; others take the capital afterwards. Used for: providing for a spouse or partner for life while protecting the eventual inheritance of children - often from an earlier relationship. Tax: the life tenant is usually treated as owning the assets for IHT.

Immediate Post-Death Interest (IPDI) A life interest created the moment someone dies, through their will. Used for: the most common way to let a surviving spouse benefit for life while keeping the capital safe for the children. Tax: very favourable - because the life tenant is treated as owning the assets, gifts to a spouse are tax-free, and the extra home allowance (RNRB) can still be preserved for the children.

Flexible Life Interest Trust (FLIT) An IPDI with an added "escape hatch": the trustees are given power to redirect the capital to a wider group if circumstances change. Used for: couples who want to look after each other for life but keep the freedom to adapt - for example if a child later divorces or hits hard times. Tax: combines the favourable life-interest treatment with discretionary-style flexibility over the capital.

Right of occupation A narrower life interest where the "benefit" is simply the right to live in a property for a period or for life, rather than to receive income. Used for: letting someone (a partner, an elderly relative) stay in a home without giving them the home itself.

Transitional Serial Interest (TSI) A technical, historical category created when the rules changed in 2006, protecting certain older life interests that were passed on within set time windows. Used for: rarely set up today - mostly relevant to trusts that already exist from that era.

Protective trust A clever hybrid: it starts as a life interest, but automatically converts into a discretionary trust if something goes wrong for the beneficiary - for example bankruptcy, or an attempt to sell or give away their interest. Used for: protecting a beneficiary who might be financially vulnerable or reckless, so their creditors cannot simply seize the fund. Technical note: the standard version comes from section 33 of the Trustee Act 1925.

B. The "discretionary" family#

Here the trustees hold the reins and decide who benefits.

Discretionary trust The base version. A pool of possible beneficiaries; the trustees decide everything. Used for: maximum flexibility and asset protection - providing for a family whose needs cannot be predicted, protecting vulnerable or spendthrift beneficiaries, and providing for people not yet born. Tax: sits inside the relevant property regime (entry, ten-yearly, and exit charges).

Nil-rate band discretionary trust (NRB discretionary trust) A discretionary trust in a will, holding assets up to the tax-free allowance (£325,000). Used for: it was once the main way for couples to use both their tax-free allowances, but since 2007 spouses can simply pass their allowance to each other, so today it is used more for asset protection, second marriages/blended families, and keeping options open in the two years after death. Tax: discretionary, but kept within the tax-free band so entry charges are usually avoided.

Pilot trust A small trust (often set up with a nominal sum like £10) created in advance, ready to receive assets later. Used for: historically, splitting wealth across several trusts to reduce charges; tax law changes in 2015 have largely closed that down, so these are far less common now.

Accumulation and maintenance trust (A&M) An older type designed to hold assets for children with favourable tax treatment. Used for: essentially historical - the 2006 rule changes removed its special status, so new ones are simply treated as ordinary discretionary trusts.

C. Special trusts protected by statute#

These are designed to help particular people, and the law gives them kinder tax treatment, largely escaping the relevant property charges.

Bereaved minor's trust For a child under 18 whose parent has died, with the child taking the assets outright at 18. Used for: holding a parent's estate for their children until adulthood. Tax: very favourable - no ten-yearly or exit charges. Technical note: section 71A of the Inheritance Tax Act 1984.

18-to-25 trust Similar to the above, but the child takes the assets a little later - at any chosen age up to 25. Used for: parents who feel 18 is too young for a child to inherit a large sum. Tax: favourable, with only a small charge on the growth in value between 18 and the age the child inherits. Technical note: section 71D of the same Act.

Disabled person's trust A trust for a beneficiary who is disabled (as legally defined). Used for: providing lifelong support for a disabled person while protecting their means-tested benefits and shielding the fund. Tax: treated broadly as though the disabled person owns the assets, so it avoids the relevant property charges. Technical note: section 89 of the same Act.

Vulnerable beneficiary election Not a type of trust in itself, but a tax choice you can make for a trust benefiting a disabled person or a bereaved minor. Used for: it tells HMRC to tax the trust's income and gains as though they belonged to the vulnerable person (usually a lower bill). Tax: an election you opt into on top of the underlying trust.

D. Trusts built around a tax relief#

These are not really separate legal types - they are usually discretionary or life-interest trusts designed to hold a particular kind of asset that attracts tax relief.

Business trust (business property) A trust structured to hold a business or business assets that qualify for Business Property Relief, which can pass on such assets free of inheritance tax. Used for: passing a family business down the generations while keeping the relief and protecting the business from being broken up.

Agricultural trust The same idea for farmland and farming assets, which can qualify for Agricultural Property Relief. Used for: keeping a farm in the family and preserving the relief through the generations.

E. Trusts for a purpose or a particular situation#

A mixed group, defined by what they're for rather than their structure.

Charitable trust A trust set up for charitable purposes, with no individual beneficiaries - the "beneficiary" is the good cause. Used for: charitable giving. Tax: broad exemptions from tax.

Non-charitable purpose trust A trust for a purpose rather than a person. In England & Wales these are generally not valid, apart from a few odd historical exceptions (such as maintaining a specific grave or animal). Used for: rarely usable here; some other countries allow them more freely.

Personal injury trust A trust holding money someone received as compensation for an injury. Used for: ring-fencing a compensation payout so it does not disqualify the person from means-tested benefits.

Pension trust Most workplace pensions are, in fact, trusts - the pension fund is held by trustees for the members. Used for: holding and protecting retirement savings for employees.

Employee benefit / employee ownership trust (EBT / EOT) A trust holding shares or assets for the benefit of a company's employees. Used for: running employee share schemes, or transferring a company into employee ownership.

Life policy trusts (gift, loan, discounted gift, and split trusts) A family of trusts built around a life insurance policy or investment bond, usually to manage inheritance tax and get the payout to the right people quickly. In brief:

• a gift trust gives money away into trust to reduce a future IHT bill;
• a loan trust lends money to the trust, so the growth sits outside your estate but you can still call back the original sum;
• a discounted gift trust gives money away while keeping a fixed income for life;
• a split trust separates the parts of a policy that pay out on death from those that pay out during life.

F. A status that can attach to any trust#

Settlor-interested trust This is a label, not a separate type. Any trust where the person who set it up (or their spouse) can benefit is "settlor-interested." Why it matters: the tax rules deliberately claw the income back to the settlor to stop people using trusts to dodge tax. It can apply to a bare, life-interest, or discretionary trust alike. Worth knowing: the rules treat spouses and unmarried partners differently, which can catch people out.

G. Trusts that arise automatically, by law#

You don't set these up on purpose - the law imposes them. They appear more in disputes and property dealings than in planning.

Statutory trust of land Whenever two or more people own property together, the law automatically creates a trust behind the scenes. Used for: it is simply how co-ownership works - the owners hold the property "on trust" for themselves.

Intestacy trust When someone dies without a valid will, the law sets out who inherits and holds the estate on trust while that is sorted out (for example, for children until they come of age).

Resulting trust A trust the law "reads back" to a person - for example, if you pay for a property but put it in someone else's name, the law may treat them as holding part of it for you.

Constructive trust A trust the law imposes to achieve fairness - for instance, to stop someone unfairly keeping property that in conscience belongs to another. Common in disputes between unmarried couples over a home.

Secret and half-secret trusts Arrangements where someone leaves assets to a person in their will on a private, agreed understanding that they will pass them on to someone else. Used for: keeping the true beneficiary off the public record; the courts enforce them to prevent dishonesty.

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Part 5 - Quick reference table#

Trust type	In plain terms	Typically used for	Tax in brief
Bare	You really own it; a trustee just holds it	Simple gifts to children; nominee holdings	Taxed as if the beneficiary owns it directly
Interest in possession (life interest)	Enjoy it now; capital passes on later	Providing for a spouse/partner for life	Life tenant treated as owning it for IHT
IPDI	A life interest created on death by will	Spouse benefits for life, children inherit capital	Favourable; spouse exemption and home allowance preserved
FLIT	An IPDI with a flexible escape hatch	Provide for a spouse but keep freedom to adapt	Favourable life-interest treatment, plus flexibility
Right of occupation	A right to live in a property	Letting someone stay in a home for life	Similar to a life interest
TSI	A protected older-style life interest	Rarely set up now; legacy trusts	Treated like a qualifying life interest
Protective trust	Life interest that flips to discretionary if trouble strikes	Protecting a vulnerable or at-risk beneficiary	Depends which mode it is in
Discretionary	Nobody's promised anything; trustees decide	Flexibility, protection, unborn beneficiaries	Inside the relevant property regime (entry / 10-yearly / exit charges)
NRB discretionary	A discretionary will trust up to the tax-free band	Asset protection, second marriages, flexibility	Discretionary, but usually within the tax-free allowance
Pilot trust	A small trust set up ready to receive assets later	Historically, splitting charges (now curtailed)	Discretionary
Accumulation & maintenance	Old-style trust for children	Largely historical	Now taxed as ordinary discretionary
Bereaved minor's	For a child, inheriting at 18, after a parent dies	Holding a parent's estate for their children	Very favourable; no 10-yearly/exit charges
18-to-25	Like the above, inheriting by 25	Parents who feel 18 is too young	Favourable; small charge on later growth
Disabled person's	Lifelong support for a disabled person	Protecting benefits and the fund	Taxed as if the disabled person owns it
Vulnerable beneficiary election	A tax choice, not a trust type	Lowering tax for disabled/bereaved-minor trusts	Income and gains taxed as the beneficiary's
Business trust	Holds business assets that get IHT relief	Passing a family business down	Uses Business Property Relief
Agricultural trust	Holds farm assets that get IHT relief	Keeping a farm in the family	Uses Agricultural Property Relief
Charitable	For a good cause, not individuals	Charitable giving	Broad tax exemptions
Non-charitable purpose	For a purpose, not a person	Rarely valid in England & Wales	N/A here
Personal injury	Holds injury compensation	Protecting means-tested benefits	Compensation ring-fenced
Pension	Retirement savings held by trustees	Workplace pensions	Special pension tax rules
Employee benefit / ownership	Holds shares for employees	Share schemes; employee ownership	Special rules
Life policy trusts	Built around a life policy or bond	Managing IHT; fast payouts	Varies by sub-type
Settlor-interested	A label: the settlor can benefit	Any trust caught by this status	Income clawed back to the settlor
Statutory trust of land	Automatic trust behind co-ownership	How joint property ownership works	Follows the owners' own position
Intestacy	Arises when there's no valid will	Holding an estate with no will	Follows intestacy rules
Resulting	Law "reads" ownership back to you	Paying for an asset in another's name	Follows who really owns it
Constructive	Imposed by law for fairness	Disputes over property/homes	Depends on the outcome
Secret / half-secret	A private arrangement via a will	Keeping the true beneficiary private	As for the underlying gift

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Glossary#

• Settlor - the person who creates a trust and puts assets in.
• Trustee - the person who legally holds and manages the trust assets for the beneficiaries.
• Beneficiary - the person or cause who benefits from the trust.
• Legal ownership - the "on paper" ownership and control (held by trustees).
• Beneficial ownership - the right to actually enjoy the asset (held by beneficiaries).
• Life tenant - the person entitled to benefit now under a life-interest trust.
• Remainderman - the person who receives the capital after the life tenant.
• Letter of wishes - a private, non-binding note guiding the trustees.
• Vesting - the moment a beneficiary becomes absolutely entitled to the assets.
• Inheritance Tax (IHT) - tax on wealth passed on during life or at death.
• Nil-rate band (NRB) - the tax-free inheritance allowance (£325,000).
• Residence nil-rate band (RNRB) - an extra allowance when a home passes to children or grandchildren.
• Capital Gains Tax (CGT) - tax on the growth in value when an asset is sold.
• Relevant property regime - the IHT charging system (entry, ten-yearly, exit) for trusts where no one has a fixed entitlement.
• Business Property Relief (BPR) - relief that can pass qualifying business assets free of IHT.
• Agricultural Property Relief (APR) - the equivalent relief for qualifying farm assets.
• Potentially exempt transfer (PET) - a lifetime gift that becomes tax-free if you survive seven years.
• Chargeable lifetime transfer (CLT) - a lifetime gift into certain trusts that may attract an immediate 20% charge above the allowance.

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This guide is for general understanding only and is not legal or tax advice. Trust and tax law is detailed and changes over time; specific decisions should be checked with a qualified professional.