UK Business Property Relief (BPR) and Inheritance Tax Guide 2026/27

What is Business Property Relief?

Business Property Relief (BPR) is a statutory Inheritance Tax (IHT) relief found in sections 103 to 114 of the Inheritance Tax Act 1984. It reduces the taxable value of qualifying business assets by either 100% or 50% when those assets are transferred -- whether on death or as a lifetime gift. Without BPR, business assets worth more than the nil-rate band (GBP 325,000 in 2026/27) would be taxed at 40% IHT, potentially forcing families to sell the business to meet the tax bill.

The policy rationale for BPR is to allow family businesses and trading enterprises to pass between generations without being broken up to fund an IHT liability. A similar relief -- Agricultural Property Relief (APR) -- applies to farmland and farm buildings. The two reliefs share the new GBP 1 million cap introduced from April 2026.

For 2026/27, the standard IHT nil-rate band remains at GBP 325,000, with a residence nil-rate band of up to GBP 175,000 available when a qualifying residential property is passed to direct descendants. The IHT rate above the available nil-rate band is 40% (or 36% where at least 10% of the net estate is left to charity). BPR sits on top of these reliefs and can reduce the value of business assets brought into the calculation in the first place.

BPR can be claimed by the personal representatives of a deceased estate, or by the transferor in the case of a chargeable lifetime transfer (such as a gift into a discretionary trust). It is not automatic -- it must be claimed on the IHT return (form IHT400 with schedule IHT413). HMRC may enquire into any BPR claim, particularly where the qualifying status of the business is not straightforward.

Qualifying Assets: 100% and 50% Relief

The rate of BPR depends on the type of asset. Assets qualifying for 100% relief (subject to the new GBP 1M cap from April 2026) are:

• An unincorporated business or interest in a business -- for example, a sole trader business or a partner's interest in a trading partnership.
• Shares in an unlisted company that carries on a qualifying trading business. This includes shares quoted on AIM (though AIM shares now only attract 50% relief from April 2026, regardless of the GBP 1M cap).
• Shares that give the transferor control of a listed company (note: this also has a 50% rate -- see below for the distinction).

Assets qualifying for 50% relief are:

• Shares or securities that give the transferor control of a listed company.
• Land, buildings, machinery, or plant owned personally and used wholly or mainly by a partnership of which the transferor was a partner.
• Land, buildings, machinery, or plant owned personally and used wholly or mainly by a company that the transferor controlled.

In all cases, the business must be a trading business rather than one that is wholly or mainly engaged in holding or making investments. HMRC applies a "wholly or mainly" test -- broadly interpreted as more than 50% of the business activity by value, income, or assets being investment in character. Businesses with a mixture of trading and investment activities (such as a company that owns both an operating business and a large investment portfolio) may face partial or total denial of BPR.

The 2-Year Ownership Requirement

BPR is only available if the transferor has owned the qualifying business property for at least two years immediately before the transfer. This minimum ownership period is strictly enforced -- assets acquired shortly before death or a gift do not qualify unless an exception applies.

The most important exception involves replacement property. If the transferor disposed of one qualifying asset and acquired another qualifying asset within three years, the ownership periods of both assets can be aggregated. This means a business owner who sells one trading company and buys another within three years does not lose the benefit of their earlier ownership period.

A second exception applies on inheritance between spouses or civil partners. If a qualifying asset passes from one spouse to the other on death, the surviving spouse can add the deceased spouse's period of ownership to their own when checking the two-year rule. This is particularly important for family businesses where one partner inherited shares from the other shortly before their own death.

For shares in an unlisted company, the two-year clock runs from the date of acquisition of each parcel of shares. If shares were acquired in tranches over time, HMRC will apply the rule to each tranche separately unless the shares are fungible (identical class and company), in which case a "first in, first out" or average cost approach may apply. Professional advice is important where share acquisition histories are complex.

Budget October 2024: The New GBP 1M Cap from April 2026

The most significant change to BPR in a generation was announced by the Chancellor on 30 October 2024. From 6 April 2026, a combined GBP 1 million cap applies to the value of assets that can attract 100% BPR and 100% APR. The structure works as follows:

• The first GBP 1 million of qualifying business and agricultural assets (combined) continues to attract 100% relief -- so no IHT is payable on that portion.
• Above GBP 1 million, the relief available drops to 50% rather than 100%. This means IHT is payable at an effective rate of 20% (50% of the standard 40% rate) on qualifying assets above the cap.
• The GBP 1 million allowance is shared between BPR-qualifying assets and APR-qualifying assets. It is not transferable between spouses on death (unlike the main nil-rate band and residence nil-rate band).

The impact is most severe for owners of larger businesses. A sole trader business valued at GBP 5 million would previously have attracted 100% BPR on the full value. From April 2026, only the first GBP 1 million is fully relieved; the remaining GBP 4 million attracts 50% BPR, leaving GBP 2 million chargeable to IHT at 40% -- a tax bill of GBP 800,000 (before applying any available nil-rate bands).

HMRC has indicated that the GBP 1M allowance will be available per transferor per estate -- it is not available on a per-asset or per-transfer basis. Business owners with both qualifying business assets and qualifying agricultural land need to consider how the combined cap will affect their overall IHT position and whether restructuring is appropriate.

Importantly, the changes apply to deaths and chargeable lifetime transfers occurring on or after 6 April 2026. Transfers made before that date -- including deaths that occur before the implementation date -- are subject to the old rules (100% relief with no cap). This transitional distinction may be relevant for estates where death occurs close to the implementation date.

AIM Shares and BPR from April 2026

AIM-listed shares have been a cornerstone of IHT planning for retail investors for many years. Because HMRC treats AIM shares as "unlisted" for BPR purposes, investors who held a qualifying AIM portfolio for at least two years could previously pass the entire value to beneficiaries free of IHT -- a powerful alternative to wrapping assets in an ISA (which does not provide IHT relief).

The October 2024 Budget changed this in two ways. First, AIM shares now only attract 50% BPR from April 2026, regardless of whether the holding falls within the GBP 1M allowance. This is a specific change to the rate of relief available on AIM shares and applies separately from the cap. Second, AIM shares do not benefit from the first GBP 1M of 100% relief that applies to other qualifying business assets -- they go straight into the 50% relief category.

In practice this means that an AIM portfolio worth GBP 500,000 held for at least two years will now have only GBP 250,000 relieved from IHT, with the remaining GBP 250,000 chargeable (generating a tax bill of GBP 100,000 at 40%, before nil-rate bands). Previously the entire GBP 500,000 would have been relieved.

Investors who built AIM portfolios specifically for IHT planning should review their strategy urgently. The 50% relief is still meaningful -- particularly for older investors who have limited access to alternative reliefs -- but the case for an AIM portfolio purely as an IHT vehicle has materially weakened. Some investors may prefer to unwind AIM holdings and rely on the nil-rate band and residence nil-rate band, or to use other planning tools such as whole of life insurance written in trust.

Excluded Business Activities and Common Pitfalls

BPR is denied where the business is "wholly or mainly" engaged in dealing in securities, stocks or shares, land or buildings, or making or holding investments. This exclusion most commonly catches:

• Property letting businesses -- even if the owner is actively involved in managing the properties, rental income is generally treated as investment rather than trading activity.
• Investment holding companies -- companies whose primary purpose is to hold a portfolio of shares or other investments do not qualify, even if they have a subsidiary that trades.
• Furnished holiday lettings -- following changes to the FHL regime from April 2025, FHL properties no longer qualify for BPR (they may have done so previously under certain HMRC interpretations).
• Cash-rich companies -- where a company holds large amounts of cash or near-cash investments that are not required for trading purposes, HMRC may argue that the investment element exceeds 50% and deny BPR in full or in part.

A binding contract for sale also defeats a BPR claim. If the deceased had signed a binding agreement to sell their business or shares before death, BPR is not available even if the transfer would otherwise qualify. Business owners who have signed share purchase agreements, trade sale contracts, or compulsory purchase orders should take specialist advice on the IHT implications.

Cross-option agreements in shareholder protection insurance arrangements are generally structured as separate put and call options (rather than a mutual obligation) precisely to avoid the binding contract trap. However, if the options are exercisable immediately or automatically on death, HMRC may still challenge the position. Any shareholder agreement should be reviewed by a solicitor with IHT expertise.

BPR Planning Strategies for 2026/27

The introduction of the GBP 1M cap has prompted a fundamental reassessment of BPR-based IHT planning. Key strategies to consider include:

Spousal exemption and staged transfers. Transfers between spouses and civil partners are exempt from IHT. Business owners may consider transferring part of the business to a spouse to make use of both partners' GBP 1M BPR allowances and nil-rate bands. However, this must be a genuine transfer with real ownership rights, not a sham arrangement.

Lifetime gifts into trust. Gifts of qualifying business property into a relevant property trust (such as a discretionary trust) may attract BPR on entry, reducing or eliminating the chargeable lifetime transfer. However, BPR on the gift is only available if the recipient trust still holds qualifying property at the time of the donor's death (if the donor dies within seven years). Trustee investment decisions must therefore take account of BPR preservation.

Life insurance written in trust. Where the value of qualifying business assets exceeds GBP 1M and the residual IHT liability cannot be avoided, a whole of life policy written in trust can provide a lump sum to meet the tax bill without the policy proceeds forming part of the estate. This is particularly relevant for business owners whose liquid assets are insufficient to fund an IHT liability.

Review of investment elements within the business. Business owners with cash-rich companies or mixed trading/investment businesses should review the balance of activities. Strategies such as investing surplus cash in trading assets, distributing excess reserves as dividends (subject to income tax), or restructuring investment activities into a separate entity may preserve BPR for the trading element.

Early action before April 2026 had limited effect. Because the new rules apply to deaths on or after 6 April 2026 (not to assets acquired before that date), there was no simple way to "lock in" old rules by transferring assets before the deadline -- death must have occurred before 6 April 2026 for the old unlimited 100% relief to apply. However, for those who made gifts before April 2026 that are still within the seven-year potentially exempt transfer window, the old rules apply to assess BPR on those gifts if the donor subsequently dies.

Frequently Asked Questions