Second Home Inheritance Tax UK (2026): RNRB, IHT Rate & Planning Options

No — the Residence Nil-Rate Band (RNRB) does not apply to a second home, holiday cottage, or investment property. The RNRB (£175,000 per person in 2026/27) is only available where: (1) The property was the deceased's main or principal residence at some point (it does not have to be their home at the date of death, but it must have been at some point during their ownership); AND (2) The property is 'closely inherited' — it passes to a lineal descendant (children, grandchildren, step-children, adopted children — but NOT nephews, nieces, siblings, or other relatives). A second home that was never the deceased's principal private residence — for example, a holiday cottage in Cornwall or a buy-to-let flat in another city — cannot qualify for the RNRB under any circumstances. HMRC is strict about this: the test is the deceased's 'residence', not their ownership. A property that was let to tenants continuously and never occupied as a home by the deceased does not qualify even if it is left to a child. The RNRB is in addition to the ordinary Nil-Rate Band (NRB) of £325,000. For a couple, the combined NRB and RNRB shelter can be as high as £1,000,000 (£325,000 + £175,000 = £500,000 per person × 2, where the first to die leaves their estate to the survivor and both reliefs are transferred). But the RNRB element of this only applies to the qualifying main residential property — a second home consumes none of the RNRB threshold.

A second home (holiday property, investment property, second residence) in England or Wales is subject to IHT at the standard rate: 40% on the value of the property above the available nil-rate band threshold. For a 2026/27 estate: (1) Nil-rate band (NRB): £325,000 applies to the total taxable estate (including the second home, all other property, savings, and investments). If the estate includes multiple properties, the NRB is shared across all assets — a large main residence and a second home together may rapidly exceed the NRB; (2) Residence nil-rate band: as explained above, the RNRB (£175,000) cannot be applied to the second property. It may be applied to the main residence if that property also qualifies and is closely inherited; (3) Reduced rate: if the estate leaves at least 10% of the net estate to charity, the IHT rate is reduced to 36% (Inheritance Tax Act 1984 s.32A); (4) Example calculation: Mr Brown dies in 2026 owning a main residence worth £400,000 (closely inherited by children — RNRB applies), a holiday cottage worth £250,000, savings of £100,000, and investments of £50,000. Total estate £800,000. NRB £325,000 + RNRB £175,000 = £500,000 threshold. Taxable estate: £800,000 − £500,000 = £300,000. IHT due: £300,000 × 40% = £120,000. If Mr Brown had no RNRB (because no qualifying residential property), the IHT would be £800,000 − £325,000 = £475,000 × 40% = £190,000. The second home does not contribute to the IHT threshold — it simply adds to the taxable estate.

No — Business Property Relief (BPR) is not available for second homes that are let on a residential tenancy, regardless of whether the letting is carried on in a business-like way. The specific exclusion is in IHTA 1984 s.105(3): BPR is denied for a business or interest in a business that consists wholly or mainly of making or holding investments. Residential letting is treated as investment activity for BPR purposes, not as a trading business. This was confirmed in HMRC's long-standing approach to residential property portfolios: even a substantial portfolio of residential buy-to-let properties, professionally managed, is denied BPR because the activity is fundamentally making investment returns rather than trading. Key distinctions: (1) Furnished holiday lettings (FHL): until April 2025, FHL income qualified for business reliefs including entrepreneurs' relief for CGT. However, BPR for IHT was denied for FHL properties by most HMRC approaches — HMRC took the view that FHL was still investment activity. From April 2025, the FHL tax regime has been abolished — FHL properties are now treated identically to other residential lettings for all tax purposes; (2) Commercial letting (shops, offices, industrial units): a business that lets commercial (non-residential) property may qualify for BPR if it can demonstrate that it is a trading business rather than an investment business — this involves a complex facts-and-circumstances analysis; (3) Holiday park or serviced accommodation: some highly active holiday businesses with substantial non-letting services (meals, activities, entertainment, daily cleaning) can argue that the business is trading rather than investing. This requires specialist advice and HMRC will scrutinise the level of active services closely. For a straightforward residential second home or holiday cottage: BPR is not available.

Capital Gains Tax applies when an inherited second home is sold, with the gain calculated from the probate value (the open market value at the date of death). The probate value is the CGT base cost — any increase in value between the date of death and the sale is a chargeable gain. CGT rates for residential property (2025/26 and 2026/27): (1) Basic rate taxpayers: 18%; (2) Higher/additional rate taxpayers: 24%. Sale by the executor during the administration period: if the executor sells the property while administering the estate, the gain is taxed at 24% (all gains by personal representatives are taxed at the higher rate) above the annual exempt amount (£3,000 in the first year of administration only). The gain is reported on the Self-Assessment return (SA100) or the estate's SA900. 60-day reporting requirement: where the gain on residential property is chargeable to CGT, it must be reported to HMRC and the CGT paid within 60 days of completion of the sale — this applies whether the sale is by the executor or by the beneficiary who has inherited the property. Failure to report within 60 days attracts automatic late filing penalties. Sale by the beneficiary after the estate is administered: once the property is transferred to the beneficiary (usually by an assent), the beneficiary owns the property at the probate value as their CGT base cost. If they later sell, only the gain above the probate value is chargeable. The beneficiary's own annual exempt amount (£3,000) and the current rates (18%/24%) apply. Private residence relief: if the beneficiary has occupied the property as their main home for part of their ownership, they can claim PPR for that period — potentially reducing or eliminating CGT. However, for a holiday cottage that was never the beneficiary's main home, no PPR is available.

There are several legitimate planning strategies for reducing the IHT exposure on a second home: (1) Making a gift during lifetime: if the property is given away outright (not retained for the donor's use) and the donor survives for 7 years after the gift, it becomes a Potentially Exempt Transfer (PET) and falls outside the IHT estate entirely. Gifts made 3–7 years before death attract taper relief (reducing the rate progressively from 40% to 8% between years 3 and 7). If the donor retains use of the property (even for a few weeks a year) it becomes a 'Gift with Reservation of Benefit' (GWR) and remains in the IHT estate regardless of when the gift was made (IHTA 1984 s.102); (2) Nil-rate band planning: for couples, a first death can 'bank' the available NRB (and unused RNRB) by leaving the estate to a discretionary trust rather than directly to the surviving spouse. This transfers NRB planning opportunities without the surviving spouse's estate benefiting from the spouse exemption on assets already above the threshold; (3) Discretionary trust on death: leaving the second home to a discretionary trust on death does not reduce IHT at death, but subsequent trust distributions to beneficiaries (particularly if value falls) may reduce the eventual IHT bill via the ten-year anniversary charge mechanism rather than a full 40% death charge; (4) Equity release: releasing equity from the second home to fund a discounted gift trust (DGT) or other IHT planning vehicle reduces the estate value subject to IHT; (5) Life insurance: a whole-of-life or joint life second-death policy written in trust can fund the IHT bill, preventing forced sale of the property; (6) Downsizing the property portfolio: simply reducing exposure by selling the property and gifting the proceeds (with a 7-year survival requirement for PETs) may be the most straightforward approach if the property is no longer needed by the family.

If the second home is jointly owned (between the deceased and a partner, spouse, or other co-owner), only the deceased's share of the property value is included in their estate for IHT. The calculation depends on how the property was owned: (1) Joint tenants (right of survivorship): the deceased's share automatically passes to the surviving co-owner at death — it does not go through the will or intestacy. However, it is still included in the deceased's IHT estate at its open market share value (typically 50% of the full property value for equal joint tenants, less a modest discount for co-ownership where applicable). If the surviving co-owner is the deceased's spouse or civil partner, the spousal IHT exemption (IHTA 1984 s.18) applies — the share passing to the surviving spouse is entirely exempt from IHT; (2) Tenants in common: the deceased's percentage share is part of the estate and passes under the will or intestacy. The value is the open market value of the share. HMRC accepts a discount from the headline pro-rata value for tenancy-in-common shares (typically 10–15% for a 50% share) on the basis that a willing buyer would not pay full pro-rata price for a fractional interest in a property they must share with a stranger; (3) Inheritance of the surviving co-owner's share: when the surviving co-owner later dies, their share is separately subject to IHT in their own estate. For a couple who own a second home as joint tenants and leave it to the survivor, the full value enters the survivor's estate on their death and is taxable above their combined NRB and RNRB (the RNRB being inapplicable to a second home, as above); (4) Trusts: if the property is held in trust, the trust tax regime applies — the property may be subject to the ten-year anniversary charge and exit charges rather than the full 40% death charge.