Business Property Relief (BPR): Two-Tier Rules and the £2.5M Cap

Business Property Relief (BPR) reduces the value of qualifying business assets when calculating UK inheritance tax, and since 6 April 2026 it works in two tiers: 100% relief on the first £2.5 million of eligible property and 50% relief on anything above that.¹ The relief is not automatic. An executor has to claim it on the inheritance tax return, and several conditions have to be met before HMRC will accept the claim.

The New Two-Tier Structure

Under Section 104 of the Inheritance Tax Act 1984, the default rate of relief is now 50% for all qualifying business property.² The rate rises to 100% only for certain categories of property, and only up to a combined £2.5 million allowance shared with Agricultural Property Relief.¹

In practice, the first £2.5 million of qualifying business and agricultural property passes tax-free. Anything above is taxed at an effective 20% (half of the 40% inheritance tax rate). A business worth £4 million would owe nothing on the first £2.5 million and £300,000 on the remaining £1.5 million.

Shares traded on the Alternative Investment Market are treated separately. AIM shares now qualify for 50% relief only and do not count toward the £2.5 million allowance at all.³ Anyone holding significant AIM positions specifically for inheritance tax planning should reassess that strategy.

Deaths before 6 April 2026 fall under the previous rules, which gave unlimited 100% relief. The cap only applies to transfers of value on or after that date.

What Qualifies as Business Property

Section 105 sets out the eligible categories.⁴ Property that can attract the 100% rate (within the £2.5 million allowance) includes:

A business or interest in a business — sole traders and partners in a trading partnership. The business itself, its goodwill, and its trade assets are the qualifying property.
Unquoted shares in companies not listed on a recognised stock exchange, including most private limited companies. Any size of shareholding qualifies; a controlling stake is not required.
Unquoted securities such as loan stock or debentures, but only where the holder had voting control of the company.

Property receiving 50% relief only, and falling outside the £2.5 million allowance, includes:

AIM-traded shares and other shares in companies designated as “not listed” on a recognised stock exchange.³
Shares in a company listed on a main stock exchange where the holder controlled the company.
Land, buildings, or machinery owned personally but used by a partnership or company for trading. This covers business owners who hold trading premises in their own name rather than through the company.

The Trading Test

Not every business qualifies. Section 105(3) excludes any business consisting “wholly or mainly” of holding investments, dealing in securities, dealing in land, or making investments.⁴

HMRC looks at a business “in the round” rather than applying a single mechanical test. Drawing on Farmer v IRC, the factors include the overall context of the business, the capital employed in trading versus investment activity, time spent by directors and employees on each side, the turnover split, and the profit generated by each element.⁵ No single factor decides the outcome.

Property rental businesses are the most common casualties. Where a company’s income comes mainly from rent, HMRC treats it as investment activity. The narrow exception is a business providing significant additional services beyond letting, closer in character to a hotel or serviced-office operation where active management genuinely dominates the revenue model.

Excepted Assets: What Gets Stripped Out

Even when a business passes the trading test, not every asset on its balance sheet attracts relief. Section 112 removes “excepted assets” from the calculation. These are items not used for the trade during the two years before the transfer and not genuinely required for future use in the business.⁶

Surplus cash and investment portfolios inside a trading company are the usual targets. HMRC weighs the cash level against working capital needs. A company holding three years of turnover in a savings account will struggle to argue the whole balance was needed for the trade. The same reasoning catches directors’ personal-use vehicles or family holiday properties held through the company.⁷ Their value is stripped out before relief is applied to the rest.

Binding Contracts for Sale Kill the Claim

If the business or shares are subject to a binding contract for sale at the date of death, BPR is denied outright. This catches “buy and sell” shareholder agreements that oblige the personal representatives of a deceased shareholder to sell and the surviving shareholders to buy.⁸

Many business owners have such agreements without realising the effect on BPR. The alternative is a “cross-option” agreement, where each side has an option but no obligation. Because neither party is bound at the moment of death, the shares are not under a binding contract and BPR survives. Any shareholder agreement should be reviewed specifically for this issue.

One exception applies: a sale to a company that will continue the business, where the consideration is mainly shares or securities in that company. The transfer is treated as a reorganisation and relief is preserved.

The Two-Year Ownership Rule

The business property must have been owned for at least two continuous years immediately before the transfer. Section 106 exists to stop people buying a business shortly before death purely to shelter wealth.⁹

Two exceptions apply. Section 107 allows ownership periods to be combined where replacement property is involved. If you sell one qualifying business and reinvest in another, the periods add together, provided qualifying property was owned for at least two of the five years preceding the transfer.¹⁰ The relief on the replacement is capped at what would have been available on the original. Separately, where a spouse or civil partner inherits qualifying business property and later dies, their ownership period includes the time held by the first spouse.

Lifetime Gifts and the Clawback

BPR applies to lifetime gifts as well as transfers on death. But under Section 113A, if the donor dies within seven years of the gift, the recipient must still own the original property at the date of the donor’s death, and the property must still qualify as relevant business property at that point.¹¹

If the recipient sells before the donor dies, the relief is clawed back and inheritance tax becomes payable on the original transfer. A partial disposal loses a proportionate share of the relief. Shares reorganised or exchanged for shares in a successor company can count as the original property, so corporate restructurings do not automatically trigger a clawback. If the recipient dies before the donor, the test date shifts to the recipient’s death.

How the Executor Claims BPR

BPR is not applied automatically. The executor must claim it on the inheritance tax return. The main form is IHT400, the full inheritance tax account required for estates that owe tax or do not qualify as excepted estates.¹² Schedule IHT413 captures the details of the business interest.

IHT413 asks for the name and main activity of the business, a breakdown of the valuation, copies of the latest three years’ accounts, details of any partnership agreement, and the amount of relief claimed at each rate.¹³ For deaths on or after 6 April 2026, the form specifically asks how the £2.5 million allowance has been apportioned across all qualifying agricultural and business property in the estate. Any professional valuation should be enclosed.

The form also asks directly whether the business or any of its assets were subject to a binding contract for sale at the date of death. A poorly drafted shareholder agreement will surface here and can disqualify the claim.

HMRC then reviews the claim. It is not a rubber stamp. HMRC can request financial statements, operational records, and explanations of how assets were used in the trade. Estates with significant excepted assets, borderline trading status, or complex group structures should expect a more detailed enquiry. Getting the valuation and supporting evidence right at the outset avoids delays and additional professional fees later.¹⁴

Planning Around the £2.5 Million Cap

The cap creates a real planning challenge for business estates worth more than £2.5 million, where the excess now generates a 20% effective charge.

The allowance is shared with Agricultural Property Relief. An estate with £2 million of qualifying farmland and £2 million of qualifying business property has £4 million competing for a single £2.5 million pot of 100% relief.¹

The inheritance tax nil rate band still applies separately. Every individual has a £325,000 nil rate band, frozen at that level through at least 2027-28, plus a potential £175,000 residence nil rate band where a home passes to direct descendants.¹⁵ These reduce the taxable estate before the 40% rate hits any business value not sheltered by BPR.

Lifetime giving matters more than it did. Gifting business property starts the seven-year clock for potentially exempt transfers, and a gift you survive by seven years leaves your estate entirely. The Section 113A clawback means the recipient has to hold the property throughout that window. For owners in good health, early gifting can achieve more than relying on BPR alone at death, and the interaction between lifetime gifts and the new cap has made specialist estate planning advice more valuable than under the old unlimited relief.

1
GOV.UK. Changes to Agricultural Property Relief and Business Property Relief
2
Legislation.gov.uk. Inheritance Tax Act 1984 – Section 104
3
HM Revenue & Customs. Inheritance Tax Manual – IHTM25570 – AR/BR: 50% Rate – Unlisted Shares and Securities
4
Legislation.gov.uk. Inheritance Tax Act 1984 – Section 105
5
HM Revenue & Customs. Shares and Assets Valuation Manual – SVM111150 – IHT Business Property Relief: Wholly or Mainly
6
Legislation.gov.uk. Inheritance Tax Act 1984 – Section 112 – Exclusion of Value of Excepted Assets
7
HM Revenue & Customs. Inheritance Tax Manual – IHTM25351 – Excepted Assets: Introduction
8
HM Revenue & Customs. Shares and Assets Valuation Manual – SVM111120 – IHT Business Property Relief: Property Subject to a Contract for Sale
9
Legislation.gov.uk. Inheritance Tax Act 1984 – Section 106
10
Legislation.gov.uk. Inheritance Tax Act 1984 – Section 107
11
Legislation.gov.uk. Inheritance Tax Act 1984 – Section 113A
12
GOV.UK. Inheritance Tax Account (IHT400)
13
GOV.UK. Schedule IHT413 – Business and Partnership Interests and Assets
14
HM Revenue and Customs. IHT400 Notes – Guide to Completing Your Inheritance Tax Account
15
GOV.UK. Inheritance Tax Nil-Rate Band and Residence Nil-Rate Band Thresholds From 6 April 2026 to 5 April 2028