Interest in possession trust tax treatment splits across three taxes: the life tenant pays income tax on the income they are entitled to, the trustees pay capital gains tax when they sell or transfer assets that have gained in value, and inheritance tax applies either to the life tenant’s deemed ownership of the fund or to the trust itself, depending on when the trust was set up and how it was created. That last split is the one that changes everything, so it is worth settling before the tax mechanics.
Is the Trust a Qualifying Interest in Possession
The Finance Act 2006 drew a sharp line. Trusts created before 22 March 2006 are treated as though the life tenant personally owns the trust assets, and that treatment continues for the life of the trust. Trusts created on or after that date only get the same treatment if they fall into one of three categories.1HM Revenue & Customs. Inheritance Tax Manual – IHTM16061
- An immediate post-death interest (IPDI) arises under a will or intestacy, where the beneficiary becomes entitled on the death of the person who left the property.
- A disabled person’s interest applies where the beneficiary qualifies as a disabled person and the trust terms secure that at least half of the applied property benefits them during their lifetime.
- A transitional serial interest (TSI) is a successor interest that replaced a pre-22 March 2006 interest in the same settlement, subject to strict timing rules. The most common example is a surviving spouse taking over on the death of the original life tenant.
Trusts in any of these categories are called qualifying interests in possession. Every other interest in possession created after March 2006 sits in the relevant property regime, which taxes the trust itself rather than the life tenant.
Income Tax on Trust Income
The life tenant has an immediate right to the trust’s income, and HMRC taxes it in their hands. Trustees pay income tax as a preliminary step. For the 2026–27 tax year, they pay 20% on most income and 10.75% on dividends.2GOV.UK. Trusts and Income Tax Those payments act as a credit against the life tenant’s own bill.
The life tenant then reports the gross trust income on their Self Assessment return. Anyone paying at 40% or 45% owes the difference between their marginal rate and the tax the trustees already handed over.3GOV.UK. Income Tax Rates and Personal Allowances Beneficiaries whose total income sits below the personal allowance can reclaim some or all of the tax the trustees paid.2GOV.UK. Trusts and Income Tax
Income is often “mandated” straight to the beneficiary, meaning it flows from the investment or tenant to the life tenant without passing through the trustees. Where that happens, the life tenant alone reports the income and pays the tax.2GOV.UK. Trusts and Income Tax Otherwise, trustees issue Form R185 to document income paid and tax already deducted, which the beneficiary uses to complete their return.4HM Revenue & Customs. Trusts and Estates – Statement of Income From Trust R185 Trust Income
Capital Gains Tax When Trustees Sell or Transfer Assets
Capital gains tax bites when trustees dispose of an asset that has grown in value. Trustees get a tax-free allowance of £1,500 for the 2026–27 tax year, rising to £3,000 where the beneficiary is a vulnerable person such as a disabled person or a child whose parent has died. Gains above the allowance are taxed at 24%, whether the asset is residential property or anything else.5GOV.UK. Trusts and Capital Gains Tax
Hold-Over Relief on Transfers to Beneficiaries
When trustees transfer an asset out to a beneficiary rather than selling it, hold-over relief can defer the CGT charge. A successful claim means the trustees pay nothing at the point of transfer; the beneficiary inherits the trustees’ base cost and pays tax on the deferred gain only when they eventually sell.6HM Revenue & Customs. HS295 Relief for Gifts and Similar Transactions
Who has to claim depends on the route. Under section 260 of the Taxation of Chargeable Gains Act 1992, where the transfer triggers an inheritance tax charge or potential charge, only the transferor needs to claim if the transferee is a trust. Where both parties are individuals, or where relief is being claimed for business assets under section 165, a joint claim by transferor and recipient is required.7Legislation.gov.uk. Taxation of Chargeable Gains Act 1992 Section 260 Trustees should keep detailed records of the original acquisition cost and any improvement expenditure so the beneficiary can calculate their own gain accurately later on.
Inheritance Tax on Qualifying Interests in Possession
For qualifying interests, HMRC looks past the trustees and treats the trust fund as if it belongs to the life tenant. When the life tenant dies, the trust assets are added to their personal estate to work out the total inheritance tax bill.1HM Revenue & Customs. Inheritance Tax Manual – IHTM16061
The nil-rate band remains £325,000. Anything above that is taxed at 40%.8GOV.UK. How Inheritance Tax Works – Thresholds, Rules and Allowances The resulting bill is split proportionally between the executors of the life tenant’s personal estate and the trustees, each paying the share that matches the value they hold. The trust fund bears its own portion of the tax, which comes out before the remainderman receives anything.
If the Interest Ends During the Life Tenant’s Lifetime
If a qualifying interest ends before the life tenant dies, the life tenant is treated as making a transfer of value equal to the value of the trust property in which the interest subsisted.9HM Revenue & Customs. Inheritance Tax Manual – IHTM16091 Whether any tax falls due depends on where the fund goes next. If it passes to the life tenant’s spouse or civil partner, the spouse exemption usually covers it. If it passes to another beneficiary outright, it is a potentially exempt transfer and drops out of account if the life tenant survives seven years. If it passes into another trust, it is immediately chargeable.
Inheritance Tax on Non-Qualifying (Relevant Property) Trusts
Most interest in possession trusts set up after March 2006 that are not an IPDI, disabled person’s interest, or TSI fall into the relevant property regime. This regime taxes the trust itself and applies charges at three points.10GOV.UK. Trusts and Inheritance Tax
- An entry charge of 20% is due on assets placed into the trust to the extent they exceed the settlor’s available nil-rate band of £325,000. Chargeable transfers made by the settlor in the previous seven years reduce that available band.
- A ten-year periodic charge falls on every tenth anniversary of the trust’s creation. Trustees value the trust property and pay a charge with a maximum effective rate of 6% on value above the threshold.
- An exit charge applies when capital leaves the trust between ten-year anniversaries. It is based on the last periodic charge rate, scaled down by the number of complete quarter-years since that anniversary, again capped at an effective 6%.
Exit charges before the first ten-year anniversary use a separate calculation involving a hypothetical lifetime transfer at the 20% lifetime rate, further scaled by three-tenths and then by the number of complete quarter-years the property was in the trust out of a possible forty.11HM Revenue & Customs. Inheritance Tax Manual – IHTM42114 The arithmetic is fiddly, and many trustees hire a professional to run the numbers.
Trustee Registration and Filing
All UK express trusts must be registered with HMRC’s Trust Registration Service unless they fall within a specific list of excluded categories. Registration also produces the Unique Taxpayer Reference trustees need before they can file. Taxable trusts must register within 90 days of first becoming liable for tax, and HMRC can impose a penalty of up to £5,000 for failure to register or to keep the register up to date.12GOV.UK. Register a Trust as a Trustee
Trustees file an annual Trust and Estate Tax Return on Form SA900. Paper returns must reach HMRC by 31 October after the tax year ends; online returns have until 31 January. A late return triggers an automatic £100 penalty.13HM Revenue & Customs. Trust and Estate Tax Return 2025 Any tax owed must also be paid by 31 January. Interest runs on unpaid balances from that date, and a separate late-payment penalty may follow.14GOV.UK. Self Assessment – Trust and Estate Tax Return SA900