Business property relief: how it works and who qualifies

Business property relief (BPR) reduces the value of qualifying business assets for inheritance tax purposes. For many estates that include a business, it is the single most important relief available – capable of reducing the IHT bill by tens or hundreds of thousands of pounds, and in some cases eliminating it entirely.

If you are dealing with an estate that includes a business, a share in a partnership, or shares in a private company, BPR is something the executor needs to understand and claim correctly. It will not be applied automatically.

Here is what you need to know at a glance:

• 100% relief is available on qualifying business assets up to a combined value of £2.5 million (from 6 April 2026)
• 50% relief applies to qualifying assets above the £2.5 million threshold, and to certain categories of asset regardless of value
• The deceased must have owned the asset for at least 2 years before death
• The business must be a trading business – companies that mainly hold investments do not qualify
• AIM shares move from 100% to 50% relief from 6 April 2026
• BPR is claimed on the IHT400 form with supplementary schedule IHT413

What is business property relief?

Business property relief is a relief under sections 103–114 of the Inheritance Tax Act 1984 that reduces the taxable value of qualifying business assets when someone dies. It was introduced to prevent inheritance tax from forcing the sale or breakup of family businesses when the owner dies.

The relief works by reducing the value of the business asset before it enters the IHT calculation. If a business qualifies for 100% BPR, its full value is removed from the estate for IHT purposes. If 50% relief applies, half the value is removed – meaning IHT is charged at an effective rate of 20% on that asset (40% on the remaining 50%).

BPR can apply to assets owned directly by the deceased, to assets held in trust, and to assets given away during the deceased’s lifetime (subject to the 7-year gift rules). It sits alongside the nil-rate band and residence nil-rate band – they are separate allowances, not alternatives.

For a broader overview of all IHT reliefs, see our guide to inheritance tax exemptions and reliefs.

What qualifies for BPR?

The relief rate depends on the type of business asset. The table below shows what qualifies and at what rate – reflecting the rules from 6 April 2026 onwards.

Relief rates and qualifying conditions sourced from gov.uk – Business Relief for Inheritance Tax and gov.uk – Agricultural property relief and business property relief changes, verified April 2026.

For assets that attract 100% relief, the £2.5 million figure is a combined allowance shared with agricultural property relief (APR). If the estate includes both business and agricultural assets, the first £2.5 million of their combined value receives 100% relief, with 50% on the excess.

The 2-year ownership requirement

To qualify for BPR, the deceased must have owned the business or asset for at least 2 years before their death. This is a strict requirement – there is no discretion for HMRC to waive it (gov.uk – Business Relief for Inheritance Tax).

The 2-year clock starts when the person acquires the asset. For shares, it is the date of purchase. For a business, it is the date the person started or acquired the business. If someone inherits a business from a spouse, the spouse’s period of ownership can count towards the 2 years – so the surviving spouse does not have to restart the clock.

There is also a replacement property rule. If someone sells one qualifying business asset and replaces it with another, the ownership periods of both can be combined – provided the total period of ownership (with gaps of no more than 3 years) meets the 2-year test. This prevents the relief from being lost simply because a business owner restructured or reinvested.

If the 2-year test is not met, BPR cannot be claimed on that asset. The full value enters the estate and is subject to IHT in the normal way, after any nil-rate band allowance.

The trading test: what counts as a business?

BPR is only available for businesses that are mainly trading businesses. A company whose main activity is holding investments – rental property, shares, cash deposits – does not qualify, regardless of how it is structured or described (gov.uk – Business Relief for Inheritance Tax: what qualifies).

HMRC applies a “mainly” test: is the business mainly a trading business, or mainly an investment business? This is assessed by looking at the overall picture – turnover, profits, assets used, time spent by the owners and employees – rather than any single metric. The HMRC Inheritance Tax Manual at IHTM25261–25280 covers this in detail (HMRC Internal Manual – IHTM25000).

Examples of businesses that typically qualify

• A manufacturing company
• A retail shop or chain
• A professional services firm (accountancy, law, consultancy)
• A construction company
• A hospitality business that operates a hotel or restaurant (as opposed to simply letting rooms)
• A farming operation (which may also qualify for agricultural property relief)

Examples that typically do not qualify

• A property investment company that buys and lets residential or commercial buildings
• A company whose main activity is managing a share portfolio
• A holding company that owns investments rather than trading subsidiaries
• A company that lets furnished holiday accommodation (this is a grey area – some qualify, some do not, depending on the level of services provided)

The distinction between trading and investment can be contentious, particularly for businesses with mixed activities. A company that trades through most of its history but holds a large cash reserve at the date of death may face HMRC scrutiny over whether that cash is an “excepted asset” (see below). Where there is any doubt, specialist advice from a tax adviser or solicitor experienced in IHT business valuations is strongly recommended.

What does not qualify for BPR

Several categories of asset are specifically excluded from BPR, even if they are owned by a trading business (gov.uk – Business Relief for Inheritance Tax: what qualifies):

Investment businesses. If the business’s main activity is dealing in securities, stocks, shares, land, or buildings – or making or holding investments – BPR is not available. This is the most common reason for BPR claims being refused.

Not-for-profit organisations. Businesses run on a not-for-profit basis are excluded.

Businesses being wound up or sold. If the business is in the process of being wound up (unless for the purpose of continuing the business) or being sold at the date of death, BPR does not apply.

Excepted assets. Even within a qualifying trading business, specific assets may be excluded if they were not used mainly for business purposes in the 2 years before death and are not required for future business use. The classic example is a large cash balance held in a company that exceeds what the business needs for its trading operations. HMRC can treat the surplus cash as an excepted asset and deny BPR on that portion of the company’s value.

Assets qualifying for agricultural property relief. Where an asset qualifies for both APR and BPR, agricultural property relief takes precedence. BPR may then apply to any remaining value not covered by APR – for example, farm equipment or the non-agricultural value of a farmhouse.

The April 2026 changes

The Autumn Budget 2024 announced significant reforms to BPR and APR. During the passage of Finance Bill 2025–26, the government amended the proposals – increasing the allowance from the originally announced £1 million to £2.5 million. The changes take effect from 6 April 2026 (gov.uk – Inheritance tax reliefs threshold to rise to £2.5m for farmers and businesses).

The £2.5 million combined allowance

From 6 April 2026, the first £2.5 million of combined BPR and APR qualifying assets receives 100% relief. Qualifying assets above that threshold receive 50% relief – giving an effective IHT rate of 20% on the excess.

The allowance is shared between BPR and APR. If an estate includes £2 million of qualifying agricultural property and £1 million of qualifying business property, the first £2.5 million receives 100% relief and the remaining £500,000 receives 50% relief.

Transferability between spouses

The £2.5 million allowance is transferable between spouses and civil partners. If the first spouse to die does not use their full allowance, the unused portion passes to the surviving spouse. A married couple can therefore shelter up to £5 million of qualifying business and agricultural assets at 100% relief. Combined with two nil-rate bands (£650,000 total), a couple could pass on approximately £5.65 million in qualifying assets free of IHT (gov.uk – Agricultural property relief and business property relief changes).

If the first death was before 6 April 2026, the full £2.5 million allowance is assumed to be available for transfer – even though the allowance did not exist at the time of the first death.

AIM shares: reduced to 50% relief

Shares traded on the Alternative Investment Market (AIM) and other markets designated as “not listed” on recognised stock exchanges will receive 50% relief from 6 April 2026, down from 100%. This change applies regardless of the £2.5 million allowance – AIM shares do not count against it or benefit from it. The effective IHT rate on qualifying AIM shares is therefore 20% (40% tax on the remaining 50% of value).

Interest-free instalments

The option to pay IHT in ten equal annual interest-free instalments is extended to all property qualifying for BPR or APR. Previously, interest-free instalments were only available on certain categories of business asset. This is a significant practical benefit, particularly for illiquid business assets where raising cash to pay IHT in a lump sum would be difficult.

What the reforms mean in practice

The government estimates that around 1,100 estates will pay more IHT in 2026–27 as a result of these changes. Around 85% of estates claiming APR – including those that also claim BPR – are forecast to pay no additional tax (gov.uk – Agricultural property relief and business property relief changes).

The reforms are legislated in the Finance Act 2026, which amends sections 104 and 116 of the Inheritance Tax Act 1984 and introduces a new Chapter 2A covering the allowance provisions.

How to claim BPR

BPR must be claimed by the executor or administrator of the estate. It is not applied automatically. The claim is made as part of the IHT return, using:

• Form IHT400 – the main Inheritance Tax account
• Schedule IHT413 – Business or partnership interests and assets (the supplementary form specific to BPR)

The executor will need to provide details of the business, its activities, the deceased’s interest, the value of the business assets, and evidence that the qualifying conditions are met. HMRC may request further information – particularly around the trading test and whether any excepted assets should be excluded.

Business valuations are a critical part of the claim. The executor must report the market value of the business at the date of death. For private companies, this is rarely straightforward. HMRC’s Shares and Assets Valuation team may challenge the valuation, and negotiations over the correct figure can take months. Where the business is substantial, instructing a specialist business valuer or tax adviser early in the process is a sound investment.

For guidance on paying any IHT that is due after BPR has been applied, see our guide to how to pay inheritance tax.

BPR and AIM shares

AIM-listed shares have been one of the most popular inheritance tax planning tools in the UK. Because AIM is not a “listed” exchange for HMRC purposes, qualifying AIM shares have historically attracted 100% BPR – meaning they could be held for 2 years, then pass free of IHT on death.

This made AIM a uniquely attractive option for IHT planning: investors could hold quoted, tradeable shares with growth potential while also benefiting from full IHT relief. Several investment managers built specialist AIM IHT portfolios on this basis.

The April 2026 change

From 6 April 2026, qualifying AIM shares receive 50% relief rather than 100%. The effective IHT rate on AIM shares becomes 20% (compared to 0% previously). This is a significant change for anyone who holds AIM shares as part of an IHT plan.

Key points to understand about the new AIM rules:

• AIM shares are treated separately from the £2.5 million combined allowance. They do not use any of the allowance, and the allowance does not apply to them. AIM shares receive 50% relief regardless of total value.
• The remaining qualifying conditions still apply: the company must be a trading business, the shares must have been held for at least 2 years, and the business must not mainly hold investments.
• The option to pay IHT on AIM shares in ten annual interest-free instalments is available from April 2026.
• AIM shares continue to qualify for BPR – the relief has been reduced, not removed. A 20% effective IHT rate is still substantially lower than the standard 40%.

For investors who already hold AIM portfolios for IHT purposes, the change does not eliminate the benefit – but it halves it. Anyone reviewing their IHT planning in light of these changes should speak to a financial adviser or tax specialist.

Gifts of business property during lifetime

If someone gives away business property during their lifetime and dies within 7 years, BPR can still apply to the gift – provided the recipient still holds the qualifying asset at the date of death (or has replaced it with other qualifying property). The donor’s original ownership period counts towards the 2-year requirement (gov.uk – Business Relief for Inheritance Tax).

If the recipient has sold the asset and not replaced it with a qualifying asset, or if the business has ceased to trade, BPR will not be available on the gift. The gift would then be taxed under the normal 7-year gift rules, with taper relief applying if the death occurred between 3 and 7 years after the gift.

Where BPR does apply to a lifetime gift, the relief reduces the value of the gift for IHT purposes – potentially to zero if 100% relief is available. This can be a significant planning opportunity, though the rules are complex and professional advice is recommended.

Common questions

Can I claim BPR on a buy-to-let property portfolio?

No. A business whose main activity is holding property investments does not qualify for BPR. This includes companies that own and let residential or commercial property. The business must be mainly a trading business – property letting is an investment activity (gov.uk – Business Relief for Inheritance Tax: what qualifies).

Does BPR apply if the business owner was a sleeping partner?

It can. Owning a share in a partnership qualifies for BPR, provided the business is a trading business and the 2-year ownership condition is met. The level of the partner’s involvement in day-to-day operations does not determine eligibility – what matters is that they held a genuine business interest and that the partnership was trading.

Can BPR and the nil-rate band be used together?

Yes. BPR reduces the value of qualifying business assets before the nil-rate band is applied. If BPR removes £500,000 of business assets from the estate, the nil-rate band of £325,000 then applies to the remaining estate. They work together, not as alternatives.

What happens if HMRC disputes the business valuation?

It is common for HMRC to challenge valuations of private businesses for IHT purposes – particularly where there is goodwill, intellectual property, or subjective elements to the valuation. HMRC’s Shares and Assets Valuation team reviews business valuations submitted with IHT returns and may negotiate the figure. The process can add months to the administration of the estate. Instructing a specialist business valuer before submitting the IHT400 can reduce the risk of protracted disputes.

Is there a deadline for claiming BPR?

BPR must be claimed as part of the IHT return, which is due within 12 months of the end of the month in which the person died. For deaths on or after 6 April 2026, claims for unused spousal allowance must be made within the later of 4 years from the date of death or 6 months from the date the person begins to act as executor or administrator.

Summary

Business property relief is one of the most valuable reliefs in the inheritance tax system. For estates that include qualifying trading businesses, partnership interests, or unlisted shares, it can substantially reduce or eliminate the IHT bill.

From 6 April 2026, the rules have changed. The first £2.5 million of combined BPR and APR assets receives 100% relief, with 50% on the excess. The allowance is transferable between spouses – giving couples up to £5 million of shelter. AIM shares now receive 50% relief rather than 100%, making them less attractive as an IHT planning tool but still beneficial.

The relief must be claimed by the executor on the IHT400 return. For any estate that includes business assets, checking whether BPR applies – and claiming it correctly – should be one of the first steps. Where the business is valuable, the trading status is uncertain, or the valuation is complex, a specialist solicitor or tax adviser can make a significant difference to the outcome.

For the full picture on inheritance tax allowances and reliefs, see our guides to the nil-rate band, residence nil-rate band, IHT exemptions and reliefs, and how to pay inheritance tax.

All figures and qualifying conditions verified against HMRC guidance and gov.uk publications, April 2026. April 2026 reform details sourced from the Finance Act 2026, which amends the Inheritance Tax Act 1984 (sections 104 and 116). This guide covers England and Wales. It is for information only and does not constitute legal or tax advice. For estates involving business assets, a solicitor or tax adviser experienced in IHT business relief claims can help ensure the relief is correctly valued and claimed.