Settlor-Interested Trusts Explained: UK Tax Rules 2026/27
How settlor-interested trusts are taxed in the UK for 2026/27 - income, capital gains and inheritance tax rules, the key anti-avoidance traps, and worked examples.
Quick answer
A settlor-interested trust is one where the settlor (or their spouse or civil partner, or in some cases a minor child) can benefit. For UK tax in 2026/27, the income and the capital gains are taxed on the settlor personally at their own rates - not at trust rates - and the assets usually stay in the settlor's estate for inheritance tax. So it rarely saves tax; its real uses are control and protection.
What "settlor-interested" actually means
The settlor is the person who put assets into the trust. A trust becomes settlor-interested when there is any way for the settlor to get a benefit back. The rules look at the possibility of benefit, not whether it is actually taken.
A trust is typically settlor-interested if any of the following can benefit:
- the settlor;
- the settlor's spouse or civil partner;
- in some circumstances, a dependent minor child of the settlor (relevant mainly for income tax).
The key point is that a remote or theoretical entitlement is enough. A discretionary trust whose class of beneficiaries quietly includes "the settlor's spouse" is caught, even if the spouse never receives a penny. This is why the precise wording of the trust deed matters so much - a single phrase can flip the tax treatment.
How the three taxes apply
The defining feature of a settlor-interested trust is that, for most purposes, HMRC looks through the trust and taxes the settlor as if the income and gains were theirs.
Income tax
Income arising in the trust is treated as the settlor's income. The trustees may pay tax at trust rates when the income arises, but the income is then attributed to the settlor, who reports it on their own Self Assessment return and is taxed at their personal marginal rates. Credit is given for tax already paid by the trustees, so the income is effectively taxed once - at the settlor's rate.
For an England, Wales or Northern Ireland resident settlor the relevant bands for 2026/27 are:
| Band | Rate | Gross income range |
|---|---|---|
| Personal allowance | 0% | up to GBP 12,570 |
| Basic rate | 20% | GBP 12,571 to GBP 50,270 |
| Higher rate | 40% | GBP 50,271 to GBP 125,140 |
| Additional rate | 45% | above GBP 125,140 |
A Scottish-resident settlor is taxed at the Scottish bands instead, which run Starter 19%, Basic 20%, Intermediate 21%, Higher 42%, Advanced 45% and Top 48%.
Remember the personal allowance is tapered away by GBP 1 for every GBP 2 of income over GBP 100,000, creating a 60% effective marginal band between GBP 100,000 and GBP 125,140. If trust income pushes the settlor into that band, the marginal cost can be steep. You can model the personal effect with the
Income Tax Calculator
Work out how much income tax you owe using the latest 2025/26 UK tax bands.
Open Income Tax calculatorIf the trust pays dividends, the settlor's dividend allowance of GBP 500 applies, with dividend rates for 2026/27 of 10.75%, 35.75% and 39.35% according to band.
Capital gains tax
Gains realised by the trustees are attributed to the settlor and taxed on them personally. For 2026/27 the CGT rates are 18% within the settlor's remaining basic-rate band and 24% above it. The annual exempt amount is GBP 3,000.
There is a sting on the way in. Normally, gifting a chargeable asset into a trust is a disposal at market value, and holdover relief can defer the gain. But holdover relief is generally not available when the trust is settlor-interested. That means transferring an appreciated asset into the trust can trigger an immediate "dry" CGT charge - tax due with no cash received. Estimate that exposure with the
Capital Gains Tax Calculator
Calculate Capital Gains Tax on property, shares and other assets for 2025/26.
Open Capital Gains Tax calculatorInheritance tax
This is where the strategy most often unravels. People set up trusts hoping the assets will fall outside their estate after seven years. But because the settlor can benefit, the gift with reservation of benefit rules usually apply, and HMRC treats the assets as still belonging to the settlor's estate at death.
The estate is then assessed against the nil-rate band of GBP 325,000 and, where a main residence passes to direct descendants, the residence nil-rate band of GBP 175,000. Anything above the available bands is charged at 40% (reduced to 36% where at least 10% of the net estate is left to charity). Use the
Inheritance Tax Calculator
Estimate Inheritance Tax liability on an estate with our UK IHT calculator.
Open Inheritance Tax calculatorWorked example
Priya, an additional-rate taxpayer in England, settles a rental property into a discretionary trust whose beneficiary class includes her husband. The trust is therefore settlor-interested.
- Rental profit of GBP 12,000 a year is attributed to Priya and taxed at her 45% marginal rate - roughly GBP 5,400 - rather than being sheltered.
- When the property is later sold by the trustees at a gain, the gain is attributed to Priya and taxed at 24% above her GBP 3,000 annual exempt amount.
- On her death, because she could benefit, the property is treated as part of her estate and tested against the nil-rate and residence nil-rate bands, with 40% charged on the excess.
Priya has given up control of the asset but secured no income tax, CGT or IHT advantage. For her, the structure only makes sense if asset protection - not tax - was the real objective.
Settlor-interested versus a clean gift
A settlor-interested trust keeps you connected to the asset: income and gains are taxed on you, and the asset usually stays in your estate for IHT. An outright gift to another person, by contrast, removes the asset from your estate after seven years (a potentially exempt transfer) and shifts future income and gains to the recipient - but you lose all control and cannot benefit again. The trust offers control and protection at the cost of tax efficiency; the clean gift offers tax efficiency at the cost of control.
| Feature | Settlor-interested trust | Outright gift |
|---|---|---|
| Who is taxed on income | Settlor, at personal rates | Recipient |
| Who is taxed on gains | Settlor | Recipient |
| In settlor's estate for IHT | Usually yes | No, after seven years |
| Holdover relief on entry | Generally denied | Not applicable |
| Settlor retains control | Yes, via trustees | No |
When it can still make sense
A settlor-interested trust is not automatically a bad structure - it is just a poor tax-saving tool. It can be the right choice where the priority is:
- protecting assets for the settlor's own future care or needs;
- retaining a degree of control while providing for family;
- ring-fencing assets from particular risks while keeping a safety net.
Because income and gains are taxed at the settlor's personal rates rather than the higher trust rates, the income tax mechanics can actually be simpler than for a fully discretionary trust. The trap is only when someone expects an inheritance tax saving that the reservation of benefit rules will deny.
Practical steps before you act
- Read the trust deed and identify exactly who can benefit - one clause can make the trust settlor-interested.
- Check whether your spouse or civil partner is in the beneficiary class, even remotely.
- Model the personal income tax on attributed income with the income tax tool, and any entry CGT charge with the capital gains tool.
- Assess the inheritance tax position of assets that will remain in your estate.
- Take specialist trust and tax advice - this is YMYL territory where a small drafting point changes the whole outcome.
For anything beyond the headline rates above - such as the trust registration process, specific trust-rate calculations, or detailed reliefs - rely on professional advice and the guidance at gov.uk, rather than rules of thumb.
Bottom line
A settlor-interested trust pulls income and gains back onto the settlor's personal tax bill and usually leaves the underlying assets inside their estate for inheritance tax. It is a structure built for control and protection, not for cutting tax. If your aim is genuine IHT mitigation, a settlor-interested trust is very often the wrong answer - and getting the structure right is far cheaper than getting it wrong.
Frequently asked questions
What makes a trust settlor-interested?
A trust is settlor-interested if the settlor, their spouse or civil partner can benefit from it - whether through income, capital, or a discretionary right that has not been excluded. In some cases a dependent minor child of the settlor also triggers the rules. The test looks at what can happen, not just what does happen, so even a remote possibility of benefit can make a trust settlor-interested. Always check the trust deed wording carefully.
Who pays the income tax on a settlor-interested trust?
The settlor does. Even though the trustees receive the income and may pay tax at trust rates first, the income is treated as the settlor's for tax purposes. The settlor reports it on their own Self Assessment return and is taxed at their personal marginal rates. They can reclaim or are credited with tax the trustees already paid, so the income is effectively taxed once at the settlor's rate rather than at trust rates.
Does the capital gains tax also fall on the settlor?
Yes. Gains realised by the trustees of a settlor-interested trust are generally attributed to the settlor and taxed on them personally at their own CGT rates, currently 18% within the basic-rate band and 24% above it for 2026/27. The settlor cannot usually claim holdover relief on assets gifted into such a trust, which is one of the main drawbacks of this structure.
Can I still use a settlor-interested trust to cut inheritance tax?
Often not effectively. Because the settlor can benefit, the assets are usually caught by the gift with reservation of benefit rules, meaning they remain in the settlor's estate for inheritance tax. So while income and gains are taxed on the settlor, the IHT planning advantage that people seek from gifting is frequently lost. Specialist advice is essential before relying on a trust for IHT mitigation.
What is the gift with reservation of benefit rule?
It is an anti-avoidance rule that stops you giving an asset away while still enjoying it. If you transfer property into trust but retain the ability to benefit, HMRC treats the asset as still part of your estate for inheritance tax at death. This commonly applies to settlor-interested trusts because the settlor can benefit, undermining the usual seven-year rule for gifts.
Are settlor-interested trust rules different in Scotland?
The trust law framework differs in Scotland, but the UK-wide tax rules for income tax, capital gains tax and inheritance tax apply across the whole of the UK. The main practical difference is income tax rates: a Scottish-resident settlor is taxed at Scottish income tax rates, which include Starter 19%, Intermediate 21%, Higher 42%, Advanced 45% and Top 48% bands, when the trust income is attributed to them.
Do trustees still have to file a tax return?
Usually yes. Trustees of a settlor-interested trust generally still register the trust and may need to file a trust and estate tax return, accounting for income and gains at trust level before the amounts are attributed to the settlor. The settlor then reports the same income and gains on their personal return, with credit for tax already paid, to avoid double taxation. Co-ordination between trustee and settlor returns is important.
Can I undo a settlor-interested trust?
Possibly, but it is rarely simple. You may be able to exclude the settlor and their spouse as beneficiaries by deed so the trust is no longer settlor-interested going forward, but this can itself have tax consequences and does not always cure the inheritance tax reservation. Any restructuring should be done with professional advice, as a poorly handled change can crystallise charges or fail to achieve the intended result.
Is a settlor-interested trust ever a good idea?
It can be, where the goal is asset protection, control or providing for the settlor's own future needs rather than saving tax. Because income and gains are taxed at the settlor's personal rates rather than higher trust rates, the income tax position can be simpler than other trusts. But for inheritance tax planning it is usually the wrong tool. The right answer depends entirely on your objectives and personal circumstances.
Where can I estimate the tax on income attributed to me?
You can model the personal income tax on attributed trust income using a standard income tax tool, since the income is taxed at your own marginal rates. For attributed gains, use a capital gains tax estimate at 18% or 24% depending on your band. For the inheritance tax position of assets still in your estate, an inheritance tax estimate against the GBP 325,000 nil-rate band and GBP 175,000 residence nil-rate band is a useful starting point.
Try the calculators
Inheritance Tax Calculator
Estimate Inheritance Tax liability on an estate with our UK IHT calculator.
Income Tax Calculator
Work out how much income tax you owe using the latest 2025/26 UK tax bands.
Capital Gains Tax Calculator
Calculate Capital Gains Tax on property, shares and other assets for 2025/26.
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