Business Relief Eligibility: What Qualifies for IHT Business Relief?

Business Relief eligibility determines whether a business, company shares or certain business assets can receive relief from UK Inheritance Tax (IHT). Business Relief, historically known as Business Property Relief or BPR, can reduce the taxable value of qualifying business property by 50% or 100% where the relevant conditions are met. The rules changed significantly from 6 April 2026. In particular, 100% relief is now subject to a £2.5 million allowance covering the combined value of qualifying agricultural and business property. Qualifying value above the available allowance generally receives 50% relief. For business owners and shareholders, this means it is important to establish both whether an asset is qualifying business property and how much relief is actually available under the 2026/27 rules. This sits within the wider Inheritance Tax and estate planning framework explained in our ultimate guide to personal tax in the UK.

What Qualifies for Business Relief?

For Business Relief Inheritance Tax purposes, the type of business property is important because different categories can qualify for different rates of relief. Whether an asset qualifies depends on both the type of business property and the activities carried on by the business. HMRC provides specific guidance on which assets qualify for Business Relief, including businesses, interests in businesses, certain company shares and business assets that may qualify at different rates. The ownership period and nature of the business must also be considered before relief can be claimed. Subject to the £2.5 million 100% relief allowance and the other qualifying conditions, 100% Business Relief can apply to:

• A business.
• An interest in a business, such as an interest in a partnership.
• Shares in a qualifying unlisted company.

Where the total qualifying agricultural and business property exceeds the available £2.5 million allowance, the qualifying value above the allowance generally receives relief at 50%.

The £2.5 Million Business Relief Allowance for 2026/27

From 6 April 2026, the amount of qualifying agricultural and business property that can receive 100% relief is generally capped at £2.5 million for an individual. This is a combined allowance. For example, an individual with £1 million of qualifying agricultural property and £2.5 million of qualifying business property does not receive 100% relief on the full £3.5 million simply because each category qualifies independently. The £2.5 million allowance must be considered across the qualifying property, with qualifying value above the available allowance generally receiving 50% relief.

Which Assets Qualify for 50% Business Relief?

Under the 2026/27 rules, 50% IHT Business Relief can apply to several categories of property.

• Qualifying agricultural or business property above the available £2.5 million 100% relief allowance.
• Qualifying shares traded on markets that do not meet HMRC’s definition of listed, such as AIM.
• Shares controlling more than 50% of the voting rights in a listed company.
• Land, buildings or machinery owned by the deceased and used in a business in which they were a partner or which they controlled.
• Certain land, buildings or machinery used by a business and held in a qualifying discretionary trust or other relevant trust structure.

HMRC sets out which assets qualify for Business Relief and the rate of relief that may apply.

Do AIM Shares Qualify for Business Relief?

The treatment of AIM shares changed from 6 April 2026. Qualifying shares traded on a market that does not meet HMRC’s definition of a listed market, including AIM, can now receive Business Relief at 50% rather than the previous 100% rate. These shares are not included within the property competing for the £2.5 million 100% relief allowance because they qualify separately at 50%. This distinction is particularly important for individuals who previously held AIM investments specifically as part of their Inheritance Tax planning.

How Long Must You Own a Business to Qualify?

One of the principal Business Relief eligibility requirements is the ownership period. In most cases, the deceased or transferor must have owned the relevant business or asset for at least two years before the transfer. Purchasing shares in a qualifying private trading company shortly before death does not automatically provide Business Relief. The ownership requirement must normally have been satisfied as well.

Which Businesses Do Not Qualify?

The nature of the business is central to determining whether qualifying business property exists. Business Relief cannot normally be claimed where the business mainly deals in:

• Securities, stocks or shares.
• Land or buildings.
• Making or holding investments.

This means that simply operating through a limited company does not establish eligibility. The activities actually undertaken by the business need to be considered.

Do Property Businesses Qualify for Business Relief?

Property businesses can present particular difficulties because businesses mainly dealing in land or buildings or making or holding investments are generally excluded. A company holding investment properties and collecting rent will therefore not automatically qualify for Business Property Relief simply because it operates commercially and generates substantial income. Where a property-related business provides extensive services or undertakes activities beyond passive investment, the position can require a more detailed examination of the business as a whole.

When Can a Business Asset Be Excluded From Relief?

Even where the underlying business qualifies, individual assets can fail to qualify. Business Relief cannot normally be claimed on an asset where it:

• Also qualifies for Agricultural Relief.
• Was not used mainly for business purposes during the relevant two-year period.
• Is not required for future use in the business.

If only part of an otherwise non-qualifying asset is used for the business, that particular part may potentially qualify.

Can Surplus Cash Affect Business Relief Eligibility?

Cash held within a qualifying trading company does not necessarily receive Business Relief automatically. The purpose for which the cash is held can be relevant when determining whether it is required for the business or could potentially be treated as an excepted asset. For example, cash retained for working capital, planned investment or identifiable future business expenditure may have a different position from substantial funds accumulated without a clear business requirement.

Business Relief on Land, Buildings and Machinery

Certain assets owned separately from the underlying business can potentially qualify for 50% Business Relief. This can include land, buildings or machinery owned personally by an individual but used by a business in which they were a partner or by a company they controlled. Where such assets are instead held within a trust structure, understanding what a trust actually is becomes an important first step before assessing eligibility. For example, an individual might personally own commercial premises used by their trading company. Provided the relevant conditions are satisfied, the property may potentially receive 50% Business Relief even though it is owned separately from the company itself.

Can Unused Business Relief Allowance Transfer Between Spouses?

For deaths on or after 6 April 2026, an unused part of the £2.5 million 100% relief allowance can potentially transfer from a deceased spouse or civil partner. Where the first spouse or civil partner used none of their allowance, the survivor could potentially have an allowance of up to £5 million. A formal claim is required within the applicable time limit, so executors should not assume that the additional allowance will be applied automatically. Where business assets are held within a trust rather than personally, the separate interaction between Capital Gains Tax and trusts should also be reviewed as part of the wider succession planning.

Example of Business Relief Eligibility in 2026/27

Suppose an individual dies owning qualifying shares in an unlisted trading company worth £3 million. Assume the shares have been owned for more than two years, the business satisfies the trading conditions and the individual’s full £2.5 million allowance remains available. The first £2.5 million of qualifying value could receive 100% Business Relief. The remaining £500,000 would generally receive 50% relief, leaving £250,000 potentially exposed to IHT before considering the individual’s wider estate, exemptions and available nil-rate bands. If the same individual instead owned qualifying AIM shares, those shares would generally fall within the separate 50% Business Relief treatment applying from 6 April 2026 rather than using the £2.5 million 100% relief allowance.

Evidence Needed to Support a Business Relief Claim

Executors and business owners should retain sufficient evidence to establish why the relevant business and assets qualify. Where a trust holds any of the qualifying assets, it’s also worth confirming whether you need to register trusts with HMRC as a separate compliance step.

• Company accounts and Corporation Tax returns.
• Share registers and shareholder records.
• Partnership agreements.
• Evidence of the ownership period.
• Details of the company’s trading and investment activities.
• Records explaining substantial cash balances or investments.
• Business and share valuations.
• Evidence showing how personally owned land, buildings or machinery are used by the business.
Speak With an Inheritance Tax Adviser

Common Business Relief Eligibility Mistakes

• Assuming all shares in a private company automatically qualify.
• Ignoring the two-year ownership requirement.
• Continuing to apply the pre-April 2026 unlimited 100% relief rules.
• Treating AIM shares as qualifying for 100% relief after 6 April 2026.
• Assuming every asset held by a qualifying trading company receives relief.
• Ignoring substantial investment activities or surplus assets.
• Assuming property investment businesses qualify because they are commercially operated.
• Failing to consider whether Agricultural Relief applies before Business Relief.
• Failing to review whether an unused allowance can transfer from a deceased spouse or civil partner.

Reviewing Whether Your Business Qualifies for IHT Business Relief

Business Relief eligibility is determined by more than simply owning a business. The nature of the business, type of property, period of ownership, use of individual assets and value of the qualifying property all need to be considered. For 2026/27, the £2.5 million 100% relief allowance adds another important stage to the calculation. Qualifying agricultural and business property within the available allowance can receive 100% relief, while qualifying value above it generally receives 50% relief. Business owners should also review the composition of their companies. Investment activities, surplus assets and changes to how the business operates can affect whether particular property remains eligible for IHT Business Relief.

Case Study: Reviewing Business Relief Before Succession Planning

Michael approached our Wimbledon office while planning to transfer ownership of his family trading company to his children. The company had grown significantly in value, and he had always assumed that his shares would qualify for 100% Business Relief because the business was privately owned.

Cigma Accounting reviewed the company’s activities, Michael’s ownership history and the assets held within the business. His shares had been owned for considerably longer than the usual two-year qualifying period, and the company carried on an active trade. However, the balance sheet also contained a substantial cash reserve and investments accumulated over several years.

We therefore considered whether these assets were genuinely required for working capital or future business expenditure, as surplus or non-business assets can affect the amount qualifying for relief. We also explained the 2026/27 Business Relief rules, including the £2.5 million combined allowance for qualifying agricultural and business property receiving 100% relief and the general 50% relief treatment for qualifying value above that allowance.

As part of the wider succession review, Cigma Accounting considered Michael’s Corporation Tax, company accounts, business valuation and personal Inheritance Tax planning. This provided a broader picture of both the company and the potential tax consequences of eventually transferring ownership to the next generation.

Michael was able to continue his succession planning with a clearer understanding of which business assets could potentially qualify, where additional evidence was needed and why Business Relief should be reviewed rather than assumed.