Inheritance Tax on Jointly Owned Property UK: Joint Tenancy vs Tenancy in Common, RNRB, and Planning (2026)
A co-owner's share of jointly owned property IS in their IHT estate — joint tenancy does not mean outside the estate. How it's treated depends on who the property passes to, whether the spousal exemption applies, and how the RNRB is optimised across both deaths.
| Scenario | Holding Type | IHT on First Death | RNRB First Death | RNRB Second Death |
|---|---|---|---|---|
| Married couple — joint tenancy (JT) — first spouse dies | Joint Tenancy | Spouse's half-share passes to survivor by RIGHT OF SURVIVORSHIP — s18 IHTA spousal exemption = £0 IHT. Property not in estate for probate but IS assessed for IHT at half value (then exempted) | RNRB NOT USED on first death — property passes by survivorship (not under will); no qualifying residential interest 'closely inherited' by direct descendants on first death | Full tRNRB (s8G IHTA) from first death + full RNRB on second death = combined £350k (if both available). IHT436 claim required — NOT automatic |
| Married couple — tenancy in common (TIC) — first spouse dies; share to surviving spouse | Tenancy in Common | Deceased's share (50%) passes under will to surviving spouse — s18 IHTA spousal exemption = £0 IHT. Probate required (share is in estate). Land Registry Form A restriction confirmed/maintained | RNRB NOT USED on first death — share passes to spouse (not to direct descendants); no closely inherited qualifying residential interest | Same as JT: full tRNRB from first death available on second death (IHT436). Plus full RNRB on second death. = £350k combined |
| Married couple — tenancy in common — first spouse dies; share to children directly | Tenancy in Common | Deceased's share (50%) passes under will to children (not to spouse). Share IS chargeable to IHT. RNRB (s8D IHTA — £175k) available to cover the value of the share passing to direct descendants. If share value ≤ £175k: RNRB covers it (no IHT on that share). NRB (£325k) covers other estate | RNRB USED on first death — share to children qualifies if it is a qualifying residential interest (QRI) and closely inherited. £175k RNRB shelters the share from IHT | Reduced tRNRB on second death (first death used some RNRB — the unused percentage transfers). Surviving spouse has their own RNRB (£175k) on second death. Net result: same £350k total RNRB used across both deaths |
| Unmarried cohabiting couple — joint tenancy — one partner dies | Joint Tenancy | Deceased partner's beneficial interest (approx. 50% of property value, minus co-ownership discount ~10-15%) IS in estate. Passes to surviving partner by survivorship. NO spousal exemption (s18 IHTA — only married couples/CPs). Potentially 40% IHT above NRB (£325k). Example: £800k property; deceased's half = £400k; IHT on £75k (£400k - £325k NRB) = £30k | RNRB NOT available — property passes to unmarried partner (not a direct descendant). RNRB only for children, grandchildren, step-children, foster children adopted during minority | Surviving partner has their own NRB (£325k) and RNRB (£175k) on second death if property passes to their direct descendants |
| Unmarried cohabiting couple — tenancy in common — share to children, not partner | Tenancy in Common | Deceased's share passes to children under will. RNRB (£175k) available if qualifying. Share chargeable above RNRB and NRB | RNRB USED if home passes to children (direct descendants). Most efficient structure for unmarried couples with children from the first death | Surviving partner has own NRB + RNRB on death. Children inherit earlier rather than waiting for second death. |
| Co-ownership discount — HMRC valuation of jointly owned property share | JT or TIC | HMRC applies a co-ownership discount (typically 10-15%) to the deceased's share of jointly owned property to reflect the fact that a joint owner cannot force a sale unilaterally (the co-owner can refuse to sell). Example: property worth £600k; notional 50% share = £300k; 10% discount applied = £270k included in estate | If share goes to children: RNRB applies to the discounted value (£270k in example). RNRB (£175k) covers £175k; remaining £95k chargeable (above NRB) | N/A for this row |
Joint property IHT: s5(1) IHTA 1984 — beneficial interest in estate. Spousal exemption: s18 IHTA (unlimited; married couples and civil partners only). RNRB: s8D IHTA 1984 — £175k per person; qualifying residential interest (QRI) closely inherited by direct descendants (s8K IHTA — children, grandchildren, step-children, foster children). Transferred RNRB (tRNRB): s8G IHTA — IHT436 NOT automatic; claim within 2yr of death or further time as HMRC allows. Joint tenancy: right of survivorship — interest passes automatically to survivor without probate; cannot be left by will; Form A restriction NOT on title. Tenancy in common: share passes under will or intestacy; Form A restriction on Land Registry title; probate required. Severing joint tenancy: written notice of severance to co-owner; immediate effect; no consent required; Land Registry Form SEV or solicitor application. Co-ownership discount: HMRC IHTM09733 — typically 10-15% discount on joint owner's share. TIC to children on first death: RNRB used on first death (if qualifying); NRB discretionary trust of TIC share = RNRB LOST. Unmarried couples: no s18 spousal exemption; full 40% IHT above NRB on deceased's share passing to partner. England and Wales.
Jointly Owned Property and IHT: Complete Guide
Joint tenancy vs tenancy in common — the fundamental difference
Jointly owned property in England and Wales can be held in two ways. Joint tenancy (JT): both co-owners own the WHOLE property together — not in separate shares. On death, the right of survivorship operates automatically: the deceased's interest in the property ceases, and the survivor becomes solely entitled to the whole property. The property passes to the survivor without needing to go through the will or intestacy — in fact, joint tenancy property cannot be left by will; an attempt to do so is simply ineffective. For Land Registry purposes, the property is registered in the names of both owners without a Form A restriction on the title — indicating a joint tenancy. Tenancy in common (TIC): each co-owner holds a defined SHARE (50/50, 70/30, or any fraction agreed between them). On death, the deceased's share DOES pass under their will or intestacy (it can be left by will to whoever the co-owner chooses). For Land Registry purposes, a Form A restriction is placed on the title — indicating that a sole surviving owner cannot sell the property without a second trustee or a court order (protecting the TIC interest). A Form A restriction is the marker that a property is held as tenants in common. Severing a joint tenancy: any one co-owner can convert the joint tenancy to a tenancy in common by serving a written 'notice of severance' on the other co-owner. No consent of the other co-owner is required — the notice alone is effective. Solicitors can draft this; it is then noted at the Land Registry (Form A restriction applied). Effect: the property becomes a tenancy in common in equal shares (50/50) from the date of severance — the co-owners can then agree to hold in unequal shares by a separate declaration of trust. This is a very common estate planning step for couples.
IHT on the deceased's jointly owned property share — how HMRC assesses it
A common misconception: 'jointly owned property passes outside the estate so there is no IHT'. This is incorrect. The deceased co-owner's beneficial interest in jointly held property IS included in their IHT estate under s5(1) IHTA 1984 — which requires every property to which the deceased was beneficially entitled immediately before death to be included in the estate. For a joint tenancy: the deceased holds an undivided beneficial interest in the whole property (equal to, notionally, half the market value for an equal joint tenancy). This is assessed for IHT. After the IHT assessment, the interest ceases by survivorship — but the VALUE was in the estate. HMRC then applies the appropriate exemption (spousal exemption s18, or PET treatment, depending on who receives the survivorship benefit). For a tenancy in common: the deceased's defined share (say 50%) is clearly in their estate. Co-ownership discount: HMRC applies a discount (typically 10-15%) to the valuation of a jointly owned property share to reflect the co-owner's inability to force a sale unilaterally. The other co-owner can refuse to sell; this reduces the open market value of the interest. HMRC's IHT Manual (IHTM09733) gives guidance; the District Valuer negotiates the discount. A 10% discount is a starting position; 15% is achievable where there is evidence of relationship difficulties or refusal to sell. Example: £600k property (equal JT); £300k notional share; 10% co-ownership discount = £270k included in IHT estate. If surviving spouse receives this by survivorship: s18 IHT exempt (regardless of value). If surviving unmarried partner receives it: NOT exempt — potentially 40% IHT on the value above the NRB (£325k). If other person receives: potentially chargeable.
IHT planning for married couples with jointly owned property
For married couples (and civil partners), jointly owned property — whether JT or TIC — is typically IHT-exempt on the first death when passing to the surviving spouse (s18 IHTA 1984 — unlimited spousal exemption). The IHT is deferred to the second death. The RNRB and NRB planning is the main consideration: Joint tenancy for a couple: first death — property passes by survivorship to spouse (IHT-exempt). The RNRB is NOT used on the first death because the home did not 'closely inherit' to a direct descendant. However: the tRNRB (s8G IHTA — transferred RNRB) mechanism allows the unused RNRB from the first death to be transferred and used on the second death. The executors of the second spouse's estate claim the tRNRB using IHT436 (NOT automatic). Combined RNRB available on second death: surviving spouse's own RNRB (£175k) + tRNRB from first spouse (£175k) = £350k total RNRB on second death. This is the most common planning for standard married couples and it works perfectly well with a joint tenancy. Tenancy in common with share to surviving spouse: same IHT result — share to spouse is s18 exempt; tRNRB claimed on second death. Tenancy in common with share to children on first death: a different approach. The deceased's share (e.g., 50% = £150k of a £300k property) passes to the children on first death. The RNRB (£175k) can cover this on first death. The surviving spouse retains their 50% share and their own RNRB on second death. However: probate is required on first death to deal with the TIC share; the children own a 50% share of the family home from that point (which can be impractical if the surviving parent wants to continue living there); more useful for blended families or where the first death leaves children who are not children of the surviving spouse. Discretionary trust of TIC share on first death: WARNING — if the deceased's TIC share passes into a discretionary trust, the RNRB is LOST on first death (a discretionary trust is not a qualifying beneficiary for RNRB purposes). The surviving spouse's tRNRB is then reduced (reflecting unused RNRB at first death). NRB discretionary trusts of TIC shares therefore cost the RNRB — this is now often avoided in favour of IPDI trusts or direct inheritance by children.
IHT and jointly owned property for unmarried couples
Unmarried cohabiting couples face a very different IHT position from married couples — the s18 IHTA spousal exemption DOES NOT apply (it applies only to married couples and civil partners). When one partner in an unmarried couple dies and their beneficial interest in the jointly owned home passes to the surviving partner (by survivorship in a JT, or under the will/intestacy in a TIC), that transfer is NOT IHT-exempt. The value of the deceased's beneficial interest in the property IS chargeable to IHT at 40% above the NRB (£325k). Example: unmarried couple's property worth £800k; equal JT; one partner dies (leaving everything to the survivor): deceased's interest = £400k (before co-ownership discount); co-ownership discount 10% = £360k in estate; NRB £325k; chargeable = £35k; IHT = £14,000. This may seem manageable for a £800k property but: if the property is worth £2m (common in London and the South East), the IHT on the deceased's half can be very significant — and the surviving partner has no cash to pay it from (the house is the asset). Planning for unmarried couples: (1) life insurance for each partner (written in trust — s11 IHTA or standard life-in-trust structure) to cover the IHT liability on the first death; (2) tenancy in common with shares to children (direct descendants), not to the partner — allows RNRB and avoids the partner-is-not-exempt problem; but the partner gets nothing in this case; (3) consider whether civil partnership or marriage is appropriate (this gives full IHT spousal exemption with NO changes to the relationship — legal simplicity); (4) mutual wills/IPDI trusts for the partner can be complex and require careful drafting. The RNRB is NOT available when the home passes to an unmarried partner — it is only available when the home passes to direct descendants (children, grandchildren, step-children, etc.).
Practical estate planning steps — when to change from JT to TIC
Most couples start out holding property as joint tenants (the default when buying together). Changing to a tenancy in common should be considered when: (1) Blended families: where each partner has children from a previous relationship and wants to ensure their share of the home passes to their own children rather than automatically to the surviving partner (by survivorship). A TIC allows a will to be used to direct the share. (2) RNRB optimisation above £2m: for estates above the £2m RNRB taper threshold (single £2.35m; couple £2.7m), using the RNRB on first death (TIC with share to children) can recover some of the tapered RNRB. Complex calculation — seek specialist advice. (3) Care home planning: if one co-owner may need care in the future, converting to TIC means their share is clearly defined (and protected from being assessed as a joint ownership issue). (4) Relationship breakdown (not divorce): if the relationship is at risk, a TIC protects each partner's defined share from survivorship passing entirely to the other. Severing a joint tenancy is simple: write a 'Notice of Severance' letter to the co-owner, ensure it is served (recorded delivery); the Form A restriction is then applied at the Land Registry (Land Registry Form SEV or a solicitor's application). No court order, no consent. Cost: minimal. Effect: immediate. A declaration of trust recording the shares (e.g., 50/50 or 60/40) is advisable alongside the severance to formalise the TIC shares. For unequal shares: agreement between co-owners is needed; a SDLT charge may arise if one co-owner transfers value to the other (e.g., one pays off more of the mortgage than the other); take legal advice.
Frequently Asked Questions
Is jointly owned property included in an estate for inheritance tax?
Yes — a deceased co-owner's beneficial interest in jointly held property IS in their IHT estate under s5(1) IHTA 1984. This applies whether the property is held as joint tenants (JT) or tenants in common (TIC). For a joint tenancy: the deceased's undivided beneficial interest (approximately half of the market value for an equal JT, minus a 10-15% co-ownership discount that HMRC typically applies) is included in the IHT estate. The interest passes to the surviving co-owner by right of survivorship — if the survivor is the spouse or civil partner, s18 IHTA provides unlimited IHT exemption. For tenants in common: the deceased's defined share (whatever fraction they hold) is included in the estate and passes under their will or intestacy. The common misconception is that joint ownership means 'outside the estate' — this is incorrect.
Do I need to change from joint tenancy to tenancy in common for inheritance tax?
Not necessarily — for most married couples with a straightforward estate (no blended family complications, estate below £2m RNRB taper threshold), a joint tenancy and a well-drafted will typically achieves the same IHT result as a tenancy in common. Both allow the RNRB and tRNRB to be combined on the second death (£350k total RNRB available if both are available and both homes pass to direct descendants, claimed on IHT436). However, converting from a joint tenancy to a tenancy in common should be considered for: blended families (each partner has children from a previous relationship); estates above the £2m RNRB taper threshold; cases where you want one partner's share to pass under their will (to children, not the surviving partner) on the first death to use the RNRB; or when one partner has significant other assets and the property would cause an RNRB taper issue. Severing a joint tenancy is straightforward — a written notice of severance, no consent required.
What is the inheritance tax position for unmarried couples on jointly owned property?
Unmarried cohabiting couples face significant IHT risk on jointly owned property. When one partner dies, their beneficial interest in the jointly owned home (approximately half the market value, minus a co-ownership discount) IS in their IHT estate — and there is NO s18 IHTA spousal exemption for unmarried couples. The value of the deceased's share (above the NRB of £325k) is subject to IHT at 40%. If the surviving partner receives the home by survivorship (joint tenancy) or as a will beneficiary (tenancy in common), they are treated as receiving a potentially exempt transfer (PET — 7-year clock applies; relevant for the estate if the deceased died before 7yr elapsed). For a £1m property (50% share = £500k), IHT above NRB = 40% × £175k = £70,000 on first death. The RNRB is not available (the surviving partner is not a direct descendant). Mitigation: life insurance written in trust; leaving the share to children (not the partner) allows RNRB; consider whether marriage/civil partnership is appropriate.
What is a Form A restriction and what does it mean for inheritance tax?
A Form A restriction on a property's Land Registry title is the marker that the property is held as a tenancy in common (not a joint tenancy). It prevents a sole surviving owner from selling the property without a second trustee or a court order — protecting the beneficial interest of the deceased's estate. From an IHT perspective: if there is a Form A restriction, the property is a tenancy in common; each owner's defined share is in their estate on death and must be dealt with through probate. If there is no Form A restriction (common for long-established joint purchases), the property is most likely held as a joint tenancy (survivorship applies). Executors should check the Land Registry title of all property the deceased held (or held an interest in) to identify whether it is JT or TIC — this determines whether the share needs probate and what IHT treatment applies.
Can I use the Residence Nil Rate Band (RNRB) on jointly owned property?
Yes — the RNRB (s8D IHTA 1984 — £175k per person) can apply to jointly owned property if the deceased's interest in the property (whether JT share or TIC share) qualifies as a 'qualifying residential interest' and 'closely inherits' to a direct descendant (child, grandchild, step-child, etc.). For a joint tenancy between married spouses: on the first spouse's death, the property passes by survivorship to the surviving spouse — not to a direct descendant — so the RNRB is NOT used on the first death. However, the tRNRB (s8G IHTA) is claimed on the second death (IHT436 — NOT automatic), effectively giving a combined £350k RNRB on the second death. For a tenancy in common where the deceased's share passes directly to children under the will: the RNRB can be used on the first death for the share passing to children. The RNRB does NOT apply if the share passes to a discretionary trust — the trust is not a 'closely inheriting' direct descendant.
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