Life Interest Trust for Surviving Spouse IHT UK 2026: IPDI, Spousal Exemption, TNRB, RNRB, Care Home Protection, and Blended Family Planning
A life interest trust for the surviving spouse, created immediately on death under the will (IPDI), is spouse-exempt, attracts no periodic charges, and preserves the full TNRB and TRNRB. It ring-fences capital for children from a first marriage while the survivor receives income for life. Care home protection is limited, local authorities may still count IPDI trust capital in the means-test.
IPDI Life Interest Trust: Spouse-Exempt on First Death, Capital Protected for Children, Care Home Caution
IPDI (s49A IHTA 1984): life interest for spouse arising immediately on death under the will. Spouse-exempt (s18 IHTA), no IHT on first death. No periodic charges (10yr). No exit charges. Trust capital in survivor's estate on death (TNRB preserved). RNRB on survivor's death if home passes to survivor's direct descendants. Blended family use: capital ring-fenced for children from first marriage, survivor gets income only; cannot redirect capital by new will or gift. Care home means-test: IPDI trust capital often COUNTED by local authority as beneficiary's capital, limited care home protection vs full discretionary trust. Must arise immediately on testator's death under the will, not after a delay or condition (FA 2006 IPDI requirement).
| Aspect | Rule / Principle | Example / Scenario | Planning Guidance |
|---|---|---|---|
| IHT treatment of an IPDI life interest trust for the surviving spouse | IMMEDIATE POST-DEATH INTEREST (IPDI), s49A IHTA 1984: a life interest trust for the surviving spouse is an IPDI if: (a) the trust is created by the testator's will (or intestacy rules); (b) the spouse's interest in possession (IIP) arises IMMEDIATELY on the testator's death; (c) the spouse has an interest in possession in all or part of the settled property. AN INTEREST IN POSSESSION exists where the beneficiary has a present right to present enjoyment, e.g., the right to receive all the income from the trust investments, or the right to occupy the trust property rent-free (Pearson v IRC [1981]). THE IHT CONSEQUENCES OF AN IPDI: (a) ON THE TESTATOR'S DEATH: the assets settling into the IPDI trust are SPOUSE-EXEMPT under s18 IHTA, no IHT is charged on the first death in respect of those assets. This is because the surviving spouse has an IPDI (QIIP, s49(1) IHTA): the spouse is treated as owning the trust capital, so the gift is effectively a gift to the spouse for IHT purposes. FIRST-DEATH NRB: the testator's NRB is unused (no chargeable transfer, spouse-exempt). On the surviving spouse's death: TNRB of the testator's full NRB (£325k) is available to the surviving spouse's estate. (b) DURING THE TRUST'S LIFE: no periodic charges (10-year charges); no exit charges. The trust is not relevant property. The surviving spouse is treated as owning the trust capital throughout. (c) ON THE SURVIVING SPOUSE'S DEATH: the trust capital is included in the surviving spouse's estate for IHT (s49(1) IHTA). The surviving spouse's estate includes: their own assets + the IPDI trust capital. IHT is charged at 40% on the combined estate above the thresholds (NRB + TNRB + RNRB + TRNRB). PRACTICAL IHT POSITION: the IPDI trust for the spouse is broadly IHT-neutral compared to leaving assets to the spouse outright, the same amounts end up in the survivor's estate and the same TNRB is available. The DIFFERENCE is NOT the IHT efficiency but the NON-IHT BENEFITS (asset protection, care home, re-marriage protection). | IPDI WORKED EXAMPLE, LIFE INTEREST IN THE FAMILY HOME: John (age 65) and Mary (age 60) are married with two adult children. John's estate: £900k (home £600k; investments £300k). John's will: 'I give my estate to my trustees to hold on trust for my wife Mary for her lifetime (life interest), remainder to my children equally.' Mary's interest: IPDI (arises immediately on John's death under his will). IHT ON JOHN'S DEATH: trust property (£900k) → IPDI for Mary → SPOUSE EXEMPT (s18 IHTA). IHT = £0. John's NRB fully unused → TNRB available on Mary's death = £325k. DURING MARY'S LIFETIME: Mary receives ALL income from the trust (dividends, rent, interest), tax-free to the extent within her personal allowance. Mary can live in the family home (right of occupation under the trust). Mary's OWN estate: say she has £200k of personal assets (ISAs, savings). ON MARY'S DEATH: trust capital (say £1m, grown from £900k). Mary's estate = own assets £200k + IPDI trust capital £1m = £1.2m total. Thresholds: Mary's NRB (£325k) + TNRB from John (£325k = £325k × 100% since John's NRB fully unused) + RNRB (£175k if home passes to children via IPDI) + TRNRB (£175k, John's RNRB unused). Total = £325k + £325k + £175k + £175k = £1m. IHT = 40% × (£1.2m − £1m) = 40% × £200k = £80k. SAME AS SIMPLE MIRROR WILL: with a simple mirror will (John → everything to Mary outright → Mary → children): the IHT on Mary's death is the same (£80k) because the TNRB + TRNRB preserves both NRBs and RNRBs. The IPDI DOES NOT CHANGE THE IHT OUTCOME, but it provides blended family and asset protection benefits. | IPDI PLANNING, KEY USES AND CAUTIONS: (1) THE IPDI MUST ARISE IMMEDIATELY ON DEATH: the critical FA 2006 rule. The will must create an IIP that arises IMMEDIATELY on the testator's death. If the will creates a discretionary trust first (even briefly), the survivor's later IIP is NOT an IPDI. Draft the will carefully: 'My trustees shall hold the trust property upon trust to pay the income thereof to my wife during her lifetime.' The IIP arises at the moment of death, not after a condition or delay. (2) CHOOSE BETWEEN LIFE INTEREST (INCOME ONLY) AND RIGHT OF OCCUPATION (HOME ONLY): a life interest trust gives the spouse the right to ALL trust income. A property trust (right of occupation) gives only the right to live in the home. For the family home, a pure right of occupation (with no income) is an IPDI if it is a right to occupy the specific property, the spouse has a 'present right to present enjoyment' of the home. (3) RNRB PRESERVATION: the family home in an IPDI trust for the surviving spouse qualifies for the RNRB on the SURVIVOR'S DEATH (when the home passes out of the trust to the children). The IPDI trust property is included in the survivor's estate, and the RNRB applies to the qualifying residential interest (the home). Ensure the trust deed specifies that the home passes to direct descendants on the survivor's death. (4) INCOME TAX ON TRUST INCOME: income arising within an IPDI trust is taxable to the life tenant (the surviving spouse) at their personal rates, NOT at the trust rates. The trustee deducts basic-rate income tax and pays it over (or passes the credit to the life tenant for their self-assessment). The life tenant includes the trust income in their self-assessment return. If the spouse has no other income: the trust income uses their personal allowance (£12,570 in 2026-27), very tax-efficient. |
| Blended family will planning with life interest trusts: protecting children from first marriage | THE BLENDED FAMILY PROBLEM: in a second (or subsequent) marriage, a testator typically wants to: (a) provide for the surviving spouse during their lifetime; AND (b) ensure the children from the first marriage ultimately inherit the estate (or at least the testator's share of it). THE RISK OF A SIMPLE MIRROR WILL IN A BLENDED FAMILY: if the testator leaves everything to the second spouse outright, and the second spouse subsequently: (a) remarries, the new spouse may inherit everything; (b) makes a new will, the second spouse can leave the estate to their own children or new partner, cutting out the children from the first marriage; (c) makes large lifetime gifts, depleting the estate; (d) needs care home funding, the estate is means-tested and depleted. The life interest trust SOLVES ALL OF THESE: by leaving the estate to a trust with the second spouse as life tenant, the CAPITAL is ring-fenced for the children from the first marriage. The second spouse cannot touch the capital, only the income (and any occupation of the home). THE LIFE INTEREST TRUST IN A BLENDED FAMILY: the testator's will creates: (a) an IPDI trust for the second spouse, the spouse receives all income for life and can live in the home; AND (b) on the second spouse's death, the trust capital passes to the children from the first marriage (the remaindermen). THE SECOND SPOUSE'S RIGHTS: under the trust, the second spouse: (a) receives ALL income during their lifetime; (b) can live in the trust property; (c) trustees may have power to advance capital to the spouse (depending on drafting, but this risks depleting the children's inheritance); (d) CANNOT make a will to redirect the trust capital, it passes to the remaindermen as specified in the first testator's will regardless of the second spouse's wishes. POTENTIAL ISSUES: (a) UNMARRIED COHABITING PARTNER: where the survivor is a cohabiting partner (not a spouse), the IPDI spousal exemption does NOT apply. A cohabiting partner's life interest trust is a CLT (chargeable lifetime transfer) on creation, subject to IHT at 20% above the NRB if the trust exceeds the NRB. (b) THE SPOUSE'S INCOME NEEDS: if the trust income is insufficient for the spouse's needs (e.g., investments underperform), the trustees must decide whether to advance capital. Over-generous capital advances deplete the children's inheritance. | BLENDED FAMILY LIFE INTEREST TRUST, EXAMPLE: David (age 60) is in his second marriage to Sarah (age 55). David has two children from his first marriage: Tom (age 32) and Emma (age 30). David's estate: £800k (family home £600k; investments £200k). David's will: 'I give my estate to my trustees to hold on trust for my wife Sarah for her lifetime (right to income and occupation of the home), remainder to my children Tom and Emma equally.' IPDI TRUST CREATED ON DAVID'S DEATH. IHT ON DAVID'S DEATH: £800k → IPDI for Sarah → SPOUSE-EXEMPT. IHT = £0. DURING SARAH'S LIFETIME: Sarah lives in the home; receives income from the investments. Sarah has NO power to redirect the trust capital. Sarah can make her own will, but she can only leave her OWN assets (not the trust capital). ON SARAH'S DEATH: the £800k trust capital (grown to say £1m) passes to Tom and Emma as remaindermen, NOT via Sarah's estate. The trust capital is INCLUDED in Sarah's estate for IHT (IPDI, s49(1) IHTA). Sarah's estate for IHT: own assets (£150k) + IPDI trust (£1m) = £1.15m. Thresholds: Sarah's own NRB (£325k) + TNRB from David (£325k) + RNRB (£175k, home to direct descendants, but Tom and Emma are David's children, not Sarah's, are they Sarah's 'direct descendants'?) RNRB ISSUE: the RNRB applies where the QRI 'closely inherits' to a direct descendant of THE DECEASED (Sarah, in this case). Tom and Emma are David's children, NOT Sarah's. On Sarah's death, the home passes from the IPDI trust to Tom and Emma. Tom and Emma are NOT Sarah's direct descendants. RNRB for Sarah: £0 (Tom and Emma are not Sarah's children). Sarah's TRNRB: David's RNRB was unused (the home was in the IPDI trust, was the RNRB claimed on David's death? On David's death the home went into the IPDI trust, spouse-exempt, David did not directly closely inherit the home to direct descendants. TRNRB available on Sarah's death = £175k (David's unused RNRB). Total thresholds: £325k + £325k + £0 RNRB + £175k TRNRB = £825k. IHT = 40% × (£1.15m − £825k) = 40% × £325k = £130k. TOM AND EMMA RECEIVE: £1m trust capital − £130k IHT paid by Sarah's estate = net £870k (reduced by the IHT borne by Sarah's estate, but Tom and Emma still receive the FULL trust capital, the IHT is borne by Sarah's OWN assets, not the trust). | BLENDED FAMILY TRUST, KEY PLANNING POINTS: (1) RNRB IN BLENDED FAMILIES: the RNRB is only available where the family home passes to the DECEASED'S OWN DIRECT DESCENDANTS. In a blended family life interest trust: on the survivor's death, if the home passes to the FIRST testator's children (who are NOT the survivor's descendants): the RNRB is NOT available on the survivor's death. Plan accordingly: the IHT calculation should assume NO RNRB for the survivor (unless they have their own children who inherit). (2) CONSIDER WHO BEARS THE IHT: in the IPDI trust structure, the trust capital is included in the survivor's estate for IHT, but the IHT must be paid from somewhere. If the survivor's own personal assets are insufficient: the estate (including the trust) may need to sell trust assets to fund the IHT. Ensure there is sufficient liquidity in the survivor's personal estate (life insurance in trust; ISA savings) to fund the anticipated IHT on the combined estate. (3) TRUSTEE DISCRETION TO ADVANCE CAPITAL: should the trust deed give trustees a power to advance capital to the surviving spouse? If YES: the spouse's financial security is protected, but capital is depleted for the children. If NO: the spouse is limited to income (and occupation), potentially creating hardship if income falls. A compromise: give trustees a power to advance capital for specific purposes only (medical emergencies; care costs; home repairs). (4) TRUSTEE SELECTION: appoint trustees who will balance the survivor's income needs (short term) against the children's capital interests (long term). A professional co-trustee (solicitor) is valuable in blended family situations to provide independent judgment when conflicts of interest arise. (5) MAKE THE TRUST KNOWN: unlike a simple mirror will (where the survivor can simply have a new will drawn up), a life interest trust is automatic on the testator's death. The survivor cannot override it. This must be made clear to the surviving spouse BEFORE the will is signed, to avoid disputes and resentment after death. |
| Care home fees and the life interest trust: means-testing caution | CARE HOME MEANS-TESTING AND LIFE INTEREST TRUSTS, THE KEY ISSUE: a common misconception is that a life interest trust fully protects the family home from care home fees means-testing. THE REALITY IS MORE NUANCED. LOCAL AUTHORITY MEANS-TESTING (Care Act 2014): when a person applies for local authority care home funding, the local authority (LA) assesses their assets. THE FINANCIAL LIMIT: a person with capital above £23,250 (England, 2026-27) must fully self-fund their care. Between £14,250 and £23,250: a taper applies. Below £14,250: LA funds all care costs. THE ASSESSMENT OF TRUST ASSETS: a trust where the beneficiary (the survivor) has an IIP (IPDI), their right to ALL income and the deemed ownership of the trust capital (s49(1) IHTA): HMRC POSITION vs LA POSITION: HMRC treats the IPDI holder as OWNING the trust capital for IHT. But: the LOCAL AUTHORITY assesses assets under the Care and Support (Charging and Assessment of Resources) Regulations 2014 (SI 2014/2672) and the Care and Support Statutory Guidance. THE LOCAL AUTHORITY MEANS-TESTING RULES FOR TRUSTS: the LA does NOT follow HMRC's IHT treatment. The LA assesses beneficial interest in a trust, NOT deemed ownership for IHT. For a DISCRETIONARY TRUST: the LA typically does NOT count trust assets as the beneficiary's capital (the beneficiary has no entitlement). For an INTEREST IN POSSESSION TRUST (IPDI): the LA TYPICALLY COUNTS the beneficiary's interest as their capital, because the IPDI holder has an entitlement to income and is treated (under trust law) as having a beneficial interest in the capital. RESULT: an IPDI trust may NOT protect the trust capital from LA care home means-testing. The LA may count the trust capital as the IPDI holder's capital (above £23,250 → self-fund). DELIBERATE DEPRIVATION OF ASSETS: the LA also has powers to challenge arrangements where a person has deliberately transferred assets to avoid care home funding. A life interest trust created YEARS BEFORE the need for care arose is generally not caught by the deliberate deprivation rules. But a trust created immediately before applying for care funding: high risk of challenge. | CARE HOME MEANS-TEST, LIFE INTEREST TRUST: Margaret (age 85) is the life tenant of an IPDI trust holding £800k (the family home + investments). Margaret's own assets: £30k (savings). Margaret requires full-time care home placement. The local authority's means-test: (a) Margaret's own assets: £30k (above £23,250, self-funds). (b) Trust assets (IPDI): LA assesses whether the IPDI constitutes a beneficial interest. The Trust deed grants Margaret an IPDI, she is entitled to ALL income and deemed to own the capital (s49(1) IHTA). THE LA'S ASSESSMENT: the LA may treat the IPDI trust capital (£800k) as Margaret's capital, making Margaret's total assessed capital £800k + £30k = £830k. At £830k: Margaret self-funds care at (say) £1,500/week. At £1,500/week: the trust is depleted at £78k/year. Over 10yr care: £780k depleted. THE ALTERNATIVE, DISCRETIONARY TRUST: if the testator had instead created a discretionary trust for Margaret (with children as co-beneficiaries), the LA WOULD NOT count the discretionary trust assets as Margaret's capital (she has no entitlement, only a discretionary hope). Margaret's own assets: £30k (above £23,250 → self-funds initially; once below £23,250 → LA funded). IHT COST: the discretionary trust is relevant property, periodic charges and exit charges apply. The CARE HOME PROTECTION of the discretionary trust comes at an IHT cost. PROFESSIONAL ADVICE: this trade-off between IHT efficiency (IPDI) and care home protection (discretionary trust) requires specialist advice from a solicitor experienced in both IHT and care funding planning. There is no 'best' answer, it depends on the specific estate, the life tenant's health, and the likely care need. | CARE HOME PLANNING, LIFE INTEREST TRUST OR DISCRETIONARY TRUST? KEY DECISION FACTORS: (1) IF THE PRIMARY CONCERN IS IHT: use an IPDI trust, no periodic charges; spousal exemption; TNRB preserved. Care home risk is accepted. (2) IF THE PRIMARY CONCERN IS CARE HOME PROTECTION: use a discretionary trust, the beneficiary has no entitlement; the LA cannot count trust assets as the beneficiary's capital. IHT cost: periodic charges (6% per 10yr above NRB). (3) THE INCOME-ONLY APPROACH: if the life interest trust grants INCOME ONLY (not occupation of the home), and the home is in a separate arrangement: the LA may count only the income entitlement, not the capital. But modern LA guidance tends to include the capital value of the IIP even for income-only trusts. (4) SPECIALIST TRUST STRUCTURES: specialist solicitors use 'flexible life interest trusts' with built-in trustee powers to convert the IPDI to a discretionary trust if the life tenant requires care funding. By converting to a discretionary trust BEFORE the care application: the LA cannot count the (now) discretionary trust assets. The conversion must happen before the care application, NOT as a deliberate deprivation (so at least 6 months before the application, and ideally years earlier). The conversion is an exit from the IPDI (s52 IHTA: the surrender of the IIP is a transfer of value, the survivor is treated as making a PET/CLT when the IPDI terminates). TIMING AND ADVICE: any planning around care home fees and life interest trusts should involve both a specialist solicitor AND a benefits adviser. Deliberate deprivation rules are enforced by local authorities; seek advice early (ideally before the need for care arises). |
Life interest trust surviving spouse IHT UK 2026. IHTA 1984, s49A: Immediate Post-Death Interest, IIP arising on testator's death under their will. s49(1) IHTA: IPDI holder treated as owning trust capital. s18 IHTA: spouse exemption on transfers between spouses. s8A IHTA: transferable nil-rate band. s8H IHTA: residence nil-rate band, home in IPDI trust qualifies where it closely inherits to direct descendants on the IPDI holder's death. Pearson v IRC [1981] AC 753: an interest in possession requires a present right to present enjoyment. Gartside v IRC [1968]: a discretionary beneficiary has no IIP. Case law on IPDI and the right of occupation: HMRC's position, a right to occupy a specific property rent-free is an IIP (HMRC IHTM16063). Finance Act 2006, s156 and Schedule 20: changed the default for post-22 March 2006 trusts, new IIPs are relevant property unless they meet the QIIP conditions. IPDI (s49A): the most important post-FA 2006 QIIP for estate planning. Care home means-testing: Care Act 2014, s17 and ss22-23; Care and Support (Charging and Assessment of Resources) Regulations 2014 (SI 2014/2672), Schedule 1; Care and Support Statutory Guidance (DHSC), Chapter 8 (financial assessment). The Regulations follow the capital assessment rules under Schedule 1 for trusts: the LA determines whether the person has a beneficial interest in the trust, for an IIP trust, the life tenant has a beneficial interest in the income AND typically a beneficial interest in the capital (s49(1) IHTA treatment aligns with the trust law analysis). DELIBERATE DEPRIVATION: s70 Care Act 2014, an LA may treat a person as if they still have a deprived capital asset. A trust created many years before care application is unlikely to be treated as deliberate deprivation. A trust created immediately before applying for care: high risk.
Frequently Asked Questions
What is a life interest trust for a surviving spouse and how is it taxed?
A life interest trust for a surviving spouse gives the spouse the right to receive all income from the trust (and typically to live in any trust property) for their lifetime, while the capital passes to the children or other beneficiaries on the survivor's death. If the trust is created immediately on the testator's death under their will, it is an Immediate Post-Death Interest (IPDI, s49A IHTA 1984), a qualifying interest in possession. For IHT: the entire trust is spouse-exempt on the first death (s18 IHTA). The surviving spouse is treated as owning the trust capital throughout their life. On the survivor's death, the trust capital is included in their estate and taxed at 40% above their NRB, TNRB, RNRB, and TRNRB. No periodic or exit charges apply during the trust's life.
Does a life interest trust protect a spouse's inheritance from remarriage in a blended family?
Yes, a life interest trust is the standard mechanism for blended family protection. If the surviving spouse remarries after the testator's death, an outright gift to the spouse means the new spouse could ultimately inherit the assets. A life interest trust ring-fences the capital for the children from the first marriage: the surviving spouse receives income and can live in the home for life, but cannot redirect the capital by will or by gifting it to a new partner. The capital passes to the specified remaindermen (the children from the first marriage) on the survivor's death regardless of any new will the survivor makes. The survivor can only leave their OWN personal assets (not the trust capital) to a new partner.
Does a life interest trust for a spouse qualify for the Residence Nil-Rate Band?
The family home in an IPDI life interest trust for a surviving spouse qualifies for the Residence Nil-Rate Band (RNRB) on the SURVIVOR'S death, if the home passes to the survivor's own direct descendants (children, grandchildren) after the life interest ends. On the FIRST DEATH (testator), the home passes into the IPDI trust spouse-exempt, the RNRB is not used (and the Transferred RNRB of £175k is available for the survivor's estate instead). In blended families: if the home ultimately passes to the FIRST testator's children (who are NOT the surviving spouse's direct descendants), the RNRB is NOT available on the survivor's death, only the TRNRB from the first death.
Does a life interest trust protect against care home fees?
Not fully. While an IPDI life interest trust means the trust capital does not belong to the surviving spouse outright, local authorities assessing care home funding typically treat a beneficiary's interest in possession trust as part of their assets, because the IPDI holder has a beneficial interest in the trust. The trust capital may be counted in the means-test alongside the spouse's personal assets. This differs from a fully discretionary trust (where the beneficiary has no entitlement), which is typically excluded from the means-test. An IPDI provides strong IHT benefits (spousal exemption, no periodic charges, TNRB preserved) but weaker care home protection than a discretionary trust. Specialist advice from a solicitor experienced in both IHT and care home funding planning is essential.
What is the difference between a life interest trust and leaving everything outright to the surviving spouse?
Leaving assets outright to the surviving spouse is simpler and often achieves the same IHT result (thanks to the TNRB and TRNRB). However, an outright gift gives the surviving spouse complete control: they can spend the assets, give them away, remarry and leave them to a new partner, or change their will entirely. A life interest trust restricts the spouse to income and occupation only, the capital is protected for the ultimate beneficiaries (typically the children). The main reasons to use a life interest trust over an outright gift are: (1) blended family protection (children from a first marriage); (2) protecting against the spouse's future care home costs (limited protection, see above); (3) protecting against creditors of the surviving spouse; (4) protecting against a profligate survivor depleting the estate.
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