Qualifying Interest in Possession IHT UK 2026: s49A–C IHTA, IPDI, Bereaved Minors Trust, Transitional Serial Interest, and Post-FA 2006 IIP Trust IHT
Finance Act 2006 changed the IHT treatment of interest in possession trusts fundamentally. New IIPs created after 22 March 2006 are relevant property (periodic charges apply) unless they qualify as an IPDI, a disabled person's trust, bereaved minor's trust, or transitional serial interest. Understanding which IIPs are 'qualifying' is essential for trust planning and estate administration.
Post-FA 2006: Only Qualifying IIPs Avoid Periodic Charges, Check Which Category Your Trust Belongs To
s49(1) IHTA treatment (beneficiary treated as owning trust capital, no periodic/exit charges) only applies to qualifying interests in possession. Post-FA 2006 QIIPs: IPDI (s49A, IIP arising immediately on death under the will); disabled person's trust (s89); bereaved minor's trust (s71A); age 18-25 trust (s71D); transitional serial interest (ss49B-C, new IIP in existing pre-FA 2006 or IPDI settlement arising immediately on previous IIP holder's death OR passing to spouse). All other new IIPs post-FA 2006 = relevant property. Pre-FA 2006 IIP trusts: retain QIIP status for the original IIP holder. New IIP in a pre-FA 2006 trust (after original IIP holder dies or surrenders): must qualify as TSI or becomes relevant property.
| Aspect | Rule / Principle | Example / Scenario | Planning Guidance |
|---|---|---|---|
| The FA 2006 revolution: from all-IIP to qualifying IIP only | PRE-FA 2006 IIP TREATMENT (BEFORE 22 MARCH 2006): before Finance Act 2006, the rule was simple: if a trust had a beneficiary with an interest in possession (IIP), the right to the income of the trust (or a right of occupation of trust property), that beneficiary was treated under s49(1) IHTA 1984 as if they were BENEFICIALLY ENTITLED to the underlying trust capital. The IHT consequences: (a) NO periodic charges (10-year charges), the trust property was not relevant property (ss58-69 IHTA); (b) NO exit charges, when trust property left the trust, it left as if it was the IIP holder's own property; (c) IHT on the IIP holder's death, the trust capital was included in the IIP holder's estate at death (and taxed at 40% over their NRB/RNRB). This was the default for all IIP trusts, including fixed-income trusts, life-interest trusts in wills, interest-in-possession trusts in settlements. THE FA 2006 CHANGE (22 MARCH 2006): Finance Act 2006, s156 and Schedule 20, fundamentally changed the IHT treatment of IIP trusts created AFTER 22 MARCH 2006. The default: a new IIP created in a settlement after 22 March 2006 is treated as RELEVANT PROPERTY, subject to the same periodic charges and exit charges as a discretionary trust, UNLESS it falls within a specific category of 'qualifying interest in possession' (QIIP). The FA 2006 change applied to: (a) NEW settlements created after 22 March 2006 where a beneficiary has an IIP; (b) new IIPs created within an EXISTING settlement after 22 March 2006 (e.g., the original IIP holder dies and a new IIP is granted to a new beneficiary, the new IIP is not automatically a QIIP). WHAT FA 2006 DID NOT CHANGE: existing IIP trusts established (and in existence) before 22 March 2006 continue to be treated as pre-FA 2006 IIPs (QIIPs) under transitional provisions, the original IIP holder is still treated as owning the trust capital (no retrospective effect on pre-existing arrangements). THE KEY QUESTION AFTER FA 2006: does the post-FA 2006 IIP fall into one of the QIIP categories? If YES: s49(1) treatment applies, no periodic/exit charges; beneficiary treated as owning the capital. If NO: the trust is relevant property, periodic charges apply every 10yr; exit charges on distributions. | WHY FA 2006 MATTERS, THE LIFE INTEREST TRUST TRAP: before FA 2006: a common will structure, 'I give my house to my trustees to allow my wife to live in it for life, then to my children.' The wife had an IIP in the house. She was treated as owning the house for IHT (s49(1)). On her death: the house in the trust was included in her estate (and passed to the children via the trust, qualifying for RNRB if the children were direct descendants). AFTER FA 2006: a NEW will trust granting an IIP to the surviving spouse must be carefully structured. IF the IIP arises immediately on the testator's death via the will, it is an IPDI (Immediate Post-Death Interest, s49A IHTA). The IPDI is a QIIP. The spouse is treated as owning the trust capital. IHT treatment is the same as before FA 2006 for IPDIs. BUT IF the will creates a trust where the spouse's IIP does not arise immediately on death (e.g., it arises after a condition is satisfied, or after an existing trust term, or it was NOT created by the will/intestacy): it is NOT an IPDI, it may be a non-qualifying IIP, relevant property. The FA 2006 trap: a trust that appears to give the spouse a life interest may NOT be an IPDI if the IIP does not arise directly from death under the will. Solicitors must draft IPDIs with care post-FA 2006. | PRACTICAL IMPLICATIONS FOR WILL DRAFTERS POST-FA 2006: (1) LIFE INTEREST IN THE MATRIMONIAL HOME: if you want to give your surviving spouse an IIP in the family home for life (while protecting the remainder for children): the trust must create the IIP immediately on death via the will, making it an IPDI. Do NOT add conditions between death and the commencement of the spouse's IIP. (2) NRB DISCRETIONARY TRUST + SPOUSE IIP: a common will structure pre-FA 2006 was: (a) NRB into discretionary trust; (b) residue on IIP trust for spouse. The residue trust was a QIIP (pre-FA 2006). Post-FA 2006: if the will creates the residue IIP directly for the spouse from death under the will, it is an IPDI (QIIP). The IIP in the NRB discretionary trust portion: if the spouse is not given an IIP in the NRB portion (it goes to a discretionary trust, no IIP), that is fine. (3) ADDING A SECOND LIFE TENANT TO A PRE-FA 2006 TRUST: if the original IIP in a pre-FA 2006 trust ends and the trustees want to create a new IIP for a second beneficiary (surviving spouse's new partner, for example), the new IIP is NOT automatically a QIIP, it is only a QIIP if it is a transitional serial interest (TSI, s49B or s49C IHTA). If the new IIP does not qualify as a TSI: it becomes relevant property, periodic charges apply from the date the new IIP was created. SPECIALIST TRUST SOLICITOR ADVICE is essential for any trust restructuring involving pre-FA 2006 trusts. |
| Immediate Post-Death Interest (IPDI), s49A IHTA 1984 | IMMEDIATE POST-DEATH INTEREST (IPDI, s49A IHTA 1984): an IPDI is the most important post-FA 2006 QIIP category for estate planning. DEFINITION (s49A): a settlement has an IPDI where: (a) the settlement was effected by a will or the intestacy rules (or the Criminal Injuries Compensation Scheme); (b) under the settlement, a person ('the beneficiary') has an interest in possession in all or part of the settled property; AND (c) the interest arose on the death of the testator (or intestate). THE 'IMMEDIATELY ON DEATH' REQUIREMENT: the IIP must arise IMMEDIATELY on death, not after a delay, not on the occurrence of some future event. If the will says: 'The trustees shall hold the property on trust for my wife, and upon her death for my children': the wife's IIP arises immediately on death, this is an IPDI. If the will says: 'The trustees shall hold the property for my children until my wife needs it, then for my wife': the wife's IIP does not arise immediately on death, it arises on a future event. NOT an IPDI. HMRC POSITION: the interest must arise on (and by reason of) the death under the will or intestacy. Interests created later (e.g., by deed of variation, s142 IHTA: yes, a variation can create an IPDI if it reads back to the death within 2yr; or by s144 IHTA appointment from a discretionary trust within 2yr: yes, an appointment to create an IIP within 2yr reads back to the death and can create an IPDI). IPDI TAX TREATMENT: the beneficiary of an IPDI is treated as owning the settled property (s49(1)): no periodic charges; no exit charges; the trust property is included in the IPDI holder's estate on their death. IPDI AND SPOUSE EXEMPTION: if the IPDI is in favour of the surviving spouse (common in 'life interest will trusts'), the trust property is included in the survivor's estate on their death, and the survivor benefits from their own NRB and RNRB. The IPDI structure preserves the TNRB (transferred NRB from the first spouse) and the RNRB where the property includes a qualifying residential interest that will pass to direct descendants on the survivor's death. IPDI AND RNRB: property held in an IPDI trust qualifies for the RNRB on the death of the IPDI holder if: (a) the property is a qualifying residential interest (QRI, a dwelling-house that was the IPDI holder's home); AND (b) the property 'closely inherits' by direct descendants. An IPDI trust where the remainder goes to direct descendants DOES qualify for RNRB on the IPDI holder's death. | IPDI WORKED EXAMPLE, LIFE INTEREST WILL TRUST: Robert dies. His will creates: (1) A NRB legacy (£325k) to a discretionary trust for children, this is relevant property (no IIP). (2) The residue (£675k including the family home valued at £500k) on IIP trust for his wife Jean for life, remainder to children absolutely. Jean's IIP in the residue arises immediately on Robert's death under his will. IT IS AN IPDI. IHT ON ROBERT'S DEATH: (a) NRB legacy (£325k to discretionary trust): NRB used (£325k − £325k = £0). Discretionary trust: CLT of £325k, within NRB, no immediate IHT. (b) Residue to IPDI trust (£675k): spouse exempt (spousal exemption applies to the IPDI trust settled on Jean for life). No IHT on Robert's death on the residue. Jean's position: she has an IPDI in £675k. She is treated as owning £675k (including the £500k home) for IHT. TNRB: Robert's NRB was used by the discretionary trust, only £0 of NRB is transferred to Jean. Jean's own estate: her own assets (say £100k). Total Jean's estate for IHT: £100k + £675k (IPDI) = £775k. Jean's NRB (£325k) + RNRB (£175k, home passes via IPDI to children) + TNRB (£0, Robert's was used). IHT on Jean's death: 40% × (£775k − £500k) = 40% × £275k = £110k. (In contrast, if Robert had transferred the whole estate to Jean outright: TNRB of £325k would be available, reducing Jean's IHT. This shows the TNRB trade-off of the NRB discretionary trust. Each structure requires careful modelling for the specific estate values.) | IPDI PLANNING STRATEGIES: (1) PROTECTING ASSETS FOR CHILDREN FROM SECOND MARRIAGES: the IPDI structure is ideal for 'protecting the children's inheritance' where there is a risk of the surviving spouse remarrying or being financially irresponsible. The will creates an IPDI for the survivor (spouse can live in the home for life; receive income from the trust) while the capital is ring-fenced for the children on the survivor's death. (2) CARE HOME FEES PROTECTION: if the surviving spouse's assets are left on an IPDI trust rather than outright, the IPDI trust assets may be treated differently from the spouse's own assets for care home means-testing. (Local authority care home means-testing includes trust assets where the person is an IPDI beneficiary, as the IPDI holder has an interest in the trust property. This should be checked with a welfare rights specialist.) (3) DEED OF VARIATION TO CREATE IPDI: a deed of variation under s142 IHTA within 2yr of death can redirect assets from an outright legacy into an IPDI trust. The variation reads back to the death, the IPDI is treated as created by the will on death. This allows the family to restructure the estate post-death to introduce an IPDI where the original will did not. (4) s144 APPOINTMENT TO CREATE IPDI: a discretionary will trust (with the surviving spouse as a potential beneficiary) can be converted into an IPDI by an appointment within 2yr of death (s144 IHTA reading-back). Within 2yr, the trustees appoint an IIP in favour of the surviving spouse, this reads back as an IPDI. After 2yr: any new IIP would need to qualify as a TSI (s49B/C), harder to achieve spouse-exempt treatment. |
| Transitional Serial Interest (TSI), s49B and s49C IHTA 1984 | TRANSITIONAL SERIAL INTEREST (TSI, ss49B-C IHTA 1984): a TSI is an IIP in a settlement where a previous IIP has ended and a new IIP has arisen, in circumstances where the new IIP qualifies as a QIIP by meeting the TSI conditions. WHY TSI EXISTS: when a pre-FA 2006 IIP holder dies (or surrenders their IIP) and a new IIP arises for a new beneficiary (e.g., a second life tenant, or the original life tenant's successor), the new IIP does not automatically qualify as an IPDI (because the new IIP did not arise directly from a testator's death under a will). WITHOUT TSI RULES: the new IIP would be relevant property, subject to periodic charges. THE TSI RULES (s49B IHTA): a TSI arises where: (a) on or after 22 March 2006, an IIP in a settlement comes to an end; (b) the settlement is an old settlement (made before 22 March 2006) OR the settlement arose on a death and is an IPDI; AND (c) immediately after the old IIP ends, another person ('B') becomes beneficially entitled to an IIP in the settled property; AND EITHER (d) B is the spouse or civil partner of the person ('A') whose IIP has ended; OR (e) B's IIP arises immediately on A's death. KEY DISTINCTION FROM IPDI: for a TSI, the new IIP must arise within an existing settlement (the original settlement or the IPDI settlement), it is NOT a new settlement. A TSI arises when the life of the settlement continues but the IIP holder changes. s49C IHTA: a further TSI category where the settlement was an old settlement (pre-FA 2006) AND the IIP that ended was itself a TSI (chaining of TSIs). DEATH OF TSI HOLDER: if B (the TSI holder) has their TSI treated as owned capital (s49(1)), the trust property is included in B's estate at death. Spouse exemption applies if B's TSI passes on to B's surviving spouse (subject to s18 IHTA). SPOUSE EXEMPTION ON A TSI: unlike an IPDI, a TSI involving a spouse continuation requires s49B(1)(d) to be met (B is the spouse of A whose IIP ended). A TSI does NOT automatically attract the spouse exemption on the creation of the TSI, the creation of the TSI is not a chargeable transfer if the TSI holder is the deceased's spouse (B is the spouse of A; the interest passes from A to B on A's death, spouse exempt creation). | TSI WORKED EXAMPLE, PRE-FA 2006 SETTLEMENT: in 1990, grandfather Ernest settled £500k into a trust giving income to his wife Edna for life, remainder to children. THE PRE-FA 2006 IIP: Edna had an IIP in the £500k (worth £1.2m by 2010). Edna died in March 2026. On Edna's death: the £1.2m is included in Edna's estate (QIIP, pre-FA 2006 IIP). IHT on Edna's death: 40% × (Edna's estate including £1.2m − Edna's NRB/RNRB). Alternatively: Ernest's will and trust deed granted a new IIP to Edna's daughter Pauline on Edna's death. PAULINE'S NEW IIP, IS IT A TSI? The settlement is a pre-FA 2006 settlement (established 1990). Edna's IIP ended on her death. Pauline's IIP arose immediately after Edna's death. Is s49B(1)(e) satisfied: 'B's IIP arises immediately on A's death'? YES, Pauline's IIP arises immediately on Edna's death. RESULT: Pauline's IIP is a TSI (s49B(1)(e)), it IS a QIIP. Pauline is treated as owning the trust capital (s49(1)). No periodic charges. The trust capital is included in Pauline's estate on her death. If instead Pauline's IIP arose NOT on Edna's death but on some future event (say, when the property was sold): NOT a TSI, relevant property. | TSI PLANNING AND PITFALLS: (1) DO NOT BREAK THE CHAIN: a TSI under s49C IHTA allows chaining of TSIs (TSI → TSI). BUT: each subsequent TSI must still meet the conditions (the new IIP must arise on the previous IIP holder's death; or the new IIP holder is the previous holder's spouse). If the chain is broken (a new IIP is created that does NOT meet TSI conditions): the trust becomes relevant property from that point. The periodic charges run from the point the trust became relevant property. (2) ADDING A NEW LIFE TENANT IN A PRE-FA 2006 TRUST: if the trustees of a pre-FA 2006 trust grant a new IIP to a new beneficiary DURING the existing IIP holder's lifetime (e.g., the trustees agree to let the existing life tenant's daughter have an IIP interest alongside the mother): this is NOT a TSI (the original IIP did not end; the new IIP did not arise on a death). The daughter's new IIP is relevant property. (3) SURRENDER OF PRE-FA 2006 IIP BY LIFE TENANT: if the life tenant surrenders (gives up) their pre-FA 2006 IIP during their lifetime, the settled property becomes relevant property. The settlement is brought within the relevant property regime. Periodic charges run from the date of surrender. The life tenant's surrender is a potentially exempt transfer (s52 IHTA, the surrender of an IIP is a transfer of value; if the life tenant gives up the IIP which passes to discretionary trust: it is a CLT; if the IIP had been treated as the life tenant's own capital, surrender transfers that capital out of the life tenant's estate). TAKE GREAT CARE before a pre-FA 2006 life tenant surrenders their IIP: this permanently converts the settled property to relevant property. Professional advice is essential. |
Qualifying interest in possession IHT UK 2026. IHTA 1984, s49(1): 'A person beneficially entitled to an interest in possession in settled property shall be treated for the purposes of this Act as beneficially entitled to the property in which the interest subsists.' This is the foundational rule, the IIP holder is treated as owning the trust capital for IHT. s49A IHTA 1984 (Immediate Post-Death Interest): inserted by Finance Act 2006, s156(2). 'A settlement has an immediate post-death interest at any time after 22nd March 2006 if, (a) the settlement was effected by a will or under the law of intestacy, (b) under the settlement, a person ('B') has an interest in possession in all or part of the settled property, and (c) the interest arose on the death of the testator or intestate.' s49B IHTA 1984 (Transitional serial interests, old settlements and IPDIs): 'There is a transitional serial interest in a settlement if, (a) there is (or was) an interest in possession in all or part of the settled property ('the previous interest'), (b) the previous interest came to an end on or after 22nd March 2006, (c) immediately after the previous interest came to an end, a person ('B') became beneficially entitled to an interest in possession in all or part of the settled property … and (d) … B is the spouse or civil partner of the person ('A') whose interest came to an end, OR (e) B's interest arose immediately on A's death.' s49C IHTA 1984: additional TSI provisions for chained transitional serial interests. s71A IHTA 1984 (Bereaved minor's trust): trust arising on the death of a parent where the bereaved minor is entitled to capital at 18 (or earlier death). Treated as QIIP: the bereaved minor is treated as owning the trust capital. s71D IHTA (Age 18-25 trust): bereaved minor's trust where the beneficiary is entitled by age 25. Relevant property treatment between ages 18 and 25 (only): s71D (2) trust property is subject to exit charges between 18 and 25, but NOT 10-year charges. Finance Act 2006, Schedule 20: made transitional provisions for settlements in existence before 22 March 2006. HMRC Trusts, Settlements and Estates Manual: TSEM2200 (interests in possession, pre-FA 2006), TSEM3810 (IPDI, s49A), TSEM3830 (TSI, s49B, s49C). Key case law on what constitutes an 'interest in possession': Pearson v IRC [1981] AC 753 (House of Lords, IIP requires a present right to present enjoyment of the trust property; a discretionary trust does NOT give a beneficiary an IIP). Gartside v IRC [1968] AC 553 (no IIP in a discretionary trust). Kildrummy (Jersey) Ltd v IRC [1990] STC 657 (right to occupation of land can be an IIP).
Frequently Asked Questions
What is a qualifying interest in possession (QIIP) for IHT?
A qualifying interest in possession (QIIP) is an interest in possession in a trust that receives the pre-Finance Act 2006 IHT treatment, the beneficiary is treated under s49(1) IHTA 1984 as if they are beneficially entitled to the underlying trust capital. This means: no 10-year periodic charges; no exit charges; the trust capital is included in the beneficiary's estate for IHT on death. After FA 2006 (effective 22 March 2006), most new interests in possession created in trusts became relevant property (subject to periodic and exit charges) unless they fall into specific QIIP categories: Immediate Post-Death Interest (IPDI, s49A IHTA), Disabled Person's Trust (s89 IHTA), Bereaved Minor's Trust (s71A IHTA), Age 18-25 Trust (s71D IHTA), or Transitional Serial Interest (TSI, ss49B-C IHTA). Pre-FA 2006 IIP trusts in existence before 22 March 2006 retain their QIIP status under transitional provisions.
What is an Immediate Post-Death Interest (IPDI) and why does it matter?
An Immediate Post-Death Interest (IPDI) under s49A IHTA 1984 is an interest in possession that arises immediately on the death of the testator (or intestate) under their will or intestacy rules. It is the most important post-FA 2006 QIIP category for estate planning. The IPDI holder is treated as owning the trust capital for IHT (s49(1)), no periodic charges; no exit charges; the capital is taxed on the IPDI holder's death. Common use: a will creates a life interest trust for the surviving spouse (spouse lives in the home for life; income from the trust for life), with remainder to children. The spouse's interest is an IPDI, spouse exemption applies on creation; no periodic charges during the trust's life; included in the spouse's estate on death (eligible for spouse's NRB, RNRB, and TNRB). The critical condition: the IIP must arise IMMEDIATELY on death under the will, not after a condition or delay.
What is a Transitional Serial Interest (TSI)?
A Transitional Serial Interest (TSI) under ss49B-C IHTA 1984 is a new interest in possession that arises within an existing settlement when the previous IIP holder's interest ends, and where the new IIP meets specific conditions to qualify as a QIIP. A TSI arises where: (a) an IIP in a pre-FA 2006 settlement (or IPDI settlement) ends; (b) immediately after, a new beneficiary's IIP begins; and (c) either the new beneficiary is the spouse/civil partner of the person whose IIP ended, or the new IIP arises immediately on the previous IIP holder's death. A TSI is treated as a QIIP, the new IIP holder is treated as owning the trust capital; no periodic charges. If the TSI conditions are NOT met (new IIP does not qualify), the trust becomes relevant property from that point, subject to periodic charges.
What happened to pre-FA 2006 interest in possession trusts?
Pre-Finance Act 2006 IIP trusts (established before 22 March 2006) retain their QIIP status under transitional provisions. The original IIP holder in a pre-FA 2006 trust continues to be treated under s49(1) IHTA as owning the underlying trust capital. No periodic charges. The trust capital is included in the IIP holder's estate on death. However, if the pre-FA 2006 IIP holder's interest ends (they die or surrender the IIP), and a new IIP is created for a new beneficiary, the NEW IIP must qualify as a Transitional Serial Interest (TSI, ss49B-C IHTA) to continue receiving QIIP treatment. If the new IIP does not qualify as a TSI, the settled property becomes relevant property, subject to 10-year periodic charges from that point.
Does a life interest trust in a will create a QIIP?
A life interest trust created by a will can create a QIIP if it meets the IPDI conditions (s49A IHTA): the IIP must arise immediately on the testator's death under the will (or intestacy), and a specific person must have the interest in possession in all or part of the settled property. Where the surviving spouse is given a life interest in the matrimonial home (or the residue of the estate) immediately on the testator's death under the will: this is an IPDI, a QIIP. The spouse is treated as owning the trust capital. Spousal exemption applies on creation. No periodic or exit charges during the trust. The trust capital is included in the spouse's estate on death (eligible for the RNRB where the home passes to direct descendants via the trust). If the will creates a discretionary trust first (and the spouse is only a possible beneficiary, not an immediate IIP holder), this is NOT an IPDI, it is relevant property, subject to periodic charges. A s144 appointment within 2 years of death can convert a discretionary trust into an IPDI reading back to the death.
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