Business Property Relief: What Qualifies for BPR and What the 2026 Cap Costs You

Business Property Relief takes 100% of the value of a qualifying business out of your inheritance tax bill, up to an allowance of £2,500,000 from 6 April 2026, and half the value of anything above it. If what you own is a buy-to-let portfolio, it almost certainly does not apply to you and no company or trust wrapper will change that. If you own a trading business alongside the property, it is very likely the largest single relief your estate will ever claim, and the April 2026 changes have made the order you do things in matter far more than it used to.

This page covers what the relief is, what qualifies, where property businesses fall on the wrong side of the line, how the new allowance works, and what the whole thing looks like on a real estate with the arithmetic shown.

What is Business Property Relief?

In one line: it is an inheritance tax relief that removes the value of a qualifying business from your estate, either completely or by half, depending on the asset and on how much qualifying value you already hold.

You will see the same relief called several things, and the variety is not a signal of anything. HMRC now calls it Business Relief. Advisers, textbooks and search boxes still say Business Property Relief, or just BPR, and the BPR meaning has not changed with the renaming. The Act itself uses neither: what you will find in the legislation is a definition of the assets that get the relief, which it calls relevant business property. Claims are made by your executors on form IHT413.

The rate is the part worth converting into a number you can use. Below the allowance, relief is 100% and the qualifying value is simply not taxed. Above it, relief is 50%, which means half the excess is taxed at the 40% inheritance tax rate. Multiply the two together and every pound of qualifying business value above £2,500,000 carries an effective 20% charge. That conversion is the one to keep in your head, because it is what turns the cap from a headline into a decision about whether to act in your lifetime.

What qualifies for business property relief?

The relief covers a business or a share in one, not just companies. What qualifies includes a sole trade, a partnership share, unquoted shares in a trading company however small your holding, quoted shares where you control the company, and land, buildings, plant or machinery you own personally but which are used by a company you control or a partnership you are a partner in. That last category is the one property owners most often miss: a warehouse in your own name, used by your own trading company, can carry relief even though it is a building.

Rates differ within that list. Unquoted trading company shares and businesses get 100% below the allowance. Assets you own personally and let your own company or partnership use get 50%, which is a real gap if you have never looked at how your premises are held. Quoted shares in a company you control sit at 50% too, which surprises founders whose company went on to list.

Then everything runs through one filter, and it is the filter that decides almost every property case. A business does not qualify if it consists wholly or mainly of dealing in land or buildings, or of making or holding investments. The test asks about the activity of the company underneath, not the class of share you hold, so an unquoted share certificate on its own tells you nothing.

Does your property business qualify? The Pawson line

If you collect rent from residential lettings, the answer is no. That was settled in Pawson v HMRC, where a holiday letting business with a reasonable level of management was still held to be mainly the holding of an investment. The reasoning has been applied consistently since, and it is why the relief is of no help to most landlords.

• Standard buy-to-let. Investment. No relief, in your own name or through a company.
• Houses in multiple occupation. Investment. More tenants and more admin does not make it a trade.
• Ordinary furnished holiday lets. Generally investment. This is the exact fact pattern Pawson decided.
• Serviced accommodation with substantial services. Can qualify, on the right facts. Managed catering, daily housekeeping and genuine hospitality services are the sort of thing that shifts it. The bar is high and HMRC challenges these claims.
• Property development. Trading. Work in progress and sites under development can qualify.
• Estate agency, lettings management, construction. Trading. These qualify on the ordinary rules.

If your portfolio is the reason you are reading this, the full reasoning and the case law behind it is set out on our BPR and pure buy-to-let: why the Pawson test fails you page, and the serviced accommodation borderline has its own treatment on our serviced accommodation BPR eligibility page.

What are the business property relief changes from 6 April 2026?

The changes to Business Property Relief that took effect on 6 April 2026 did three things. Note what is not on the list: the BPR changes did not touch the qualifying test at all, so nothing that failed before now passes.

• The 100% rate is now capped. One combined allowance of £2,500,000 covers agricultural and business property relief together. Below it, 100%. Above it, 50%.
• The allowance rolls over seven years. Qualifying property you give away in the seven years before you die uses the allowance up, so what is left at death is reduced by what you have already used.
• AIM dropped to 50% but moved outside the allowance. More on that below, because it is better news than it sounds.

Whatever the first estate leaves unused can be carried to the survivor in the same way the nil-rate band is, which is why you will see couples described as having up to £5,000,000 of combined relief. That is the right number to plan a family estate against, but it has to be claimed on the second death and it depends on the first death being handled properly, so it is not automatic.

The number you will most often see quoted is wrong. A great deal of published guidance still says the cap is £1 million. That was the figure announced on 30 October 2024. It was raised before the legislation was finalised, the GOV.UK announcement page was never updated and still carries the old figure, and many guides simply copied it. If your planning was built on £1 million, you have been given £1,500,000 less headroom than you actually have, and the decisions that follow from that are different decisions.

There is also a date to know. Three conditions have to line up before a lifetime gift is dragged into the new regime: the gift was made on or after 30 October 2024, the donor dies on or after 6 April 2026, and that death falls within seven years of the gift. Break any one of them and the gift stays outside. So gifts completed before 30 October 2024 are outside the new regime whatever happens afterwards, and the window for rushing one in ahead of the change closed on the day it was announced.

How does business property relief on shares work if you hold AIM?

AIM-traded shares, and other shares designated as not listed on the markets of recognised stock exchanges, used to get 100% relief once you had held them for two years. They now get 50%. That sounds like a straight halving, and on its own it is, but the second half of the change matters more: AIM holdings do not consume the £2,500,000 allowance. They sit in their own tier.

So the two stack rather than compete. On a £500,000 AIM portfolio, 50% relief shelters £250,000, which saves £100,000 at the 40% rate, and your full allowance is still available for a trading business or for farmland. If you hold Business Relief funds or single-company BPR investments, this is the tier they now sit in. The pitch on those products changed materially in April 2026 and a Business Relief fund bought on the old 100% basis is doing half the work it was sold to do, so it is worth checking what you actually hold rather than assuming. Business relief qualifying investments are not a separate category in the legislation, incidentally: they are ordinary relevant business property that happens to be packaged.

A worked example: what this costs a £3,800,000 estate

Mr Ormerod is 65 and still runs the engineering company he founded in 1995. His estate in March 2026 looks like this.

• Unquoted shares in his trading company: £2,000,000
• Buy-to-let portfolio in his own name: £1,000,000
• AIM portfolio, held for more than two years: £500,000
• Cash and ISAs: £300,000
• Total: £3,800,000

His wife died in 2018 and none of her nil-rate band was used, so his executors have £325,000 plus her transferred £325,000, a total of £650,000. The residence nil-rate band does not feature: there is no home in the list above for it to attach to, and on an estate of £3,800,000 the taper would have taken it to nothing anyway, since it runs out at £2,700,000 even with her unused share added. Assume he dies in 2031 with the trading company then worth £3,000,000 and everything else unchanged.

If he does nothing

• Trading shares £3,000,000: the first £2,500,000 gets 100% relief. The remaining £500,000 gets 50%, leaving £250,000 chargeable.
• AIM portfolio £500,000: 50% relief in its own tier, leaving £250,000 chargeable.
• Buy-to-let portfolio: no relief. £1,000,000 chargeable.
• Cash and ISAs: £300,000 chargeable.
• Chargeable estate: £250,000 + £250,000 + £1,000,000 + £300,000 = £1,800,000
• Less nil-rate bands of £650,000 = £1,150,000 taxed at 40% = £460,000 of inheritance tax

If he gives the trading shares away in 2026

In June 2026 he transfers the £2,000,000 of trading shares into a discretionary trust from which he cannot benefit. Nothing is payable on the way in. Inheritance tax counts the gift immediately, but 100% relief covers it because £2,000,000 sits inside his £2,500,000 allowance. Because inheritance tax counts it, capital gains tax holdover is available too, so the trustees take on his base cost and no capital gains tax falls due. The gift uses £2,000,000 of his rolling allowance for the next seven years.

• Chargeable estate at death: £1,000,000 + £250,000 + £300,000 = £1,550,000
• Less £650,000 = £900,000 taxed at 40% = £360,000 of inheritance tax
• Saving against doing nothing: £460,000 - £360,000 = £100,000

Notice how small that is relative to the growth involved. The company grew by £1,000,000 and moving it out of his estate saved £100,000, not £400,000. The reason is that the relief was already doing most of the work: even inside his estate, the first £2,500,000 of those shares was relieved in full and half of the excess was relieved too. The trust only earns its keep on the slice that would have poked above the allowance, which is 40% of half of £500,000. That arithmetic is the honest case for and against acting, and it is the calculation nobody does before recommending a trust.

If he also owned qualifying farmland, the £2,000,000 gift would have eaten allowance that the farmland needed at death, and the trust could cost him money rather than save it. And if he survives to 2033, seven years from the gift, it drops out of the reckoning entirely and the position improves again. The mechanics of gifts into trust are set out on our gifts of property into a discretionary trust page.

Business property relief pitfalls that cost the most

Surplus assets sitting inside the company

Suppose Mr Ormerod's balance sheet is not lean. The company holds £200,000 of cash well beyond anything the trade needs and a £150,000 commercial unit let to an unconnected tenant. Neither is used in the business, so £350,000 of his share value is stripped out of the relief. At 40%, that is £140,000 of inheritance tax hiding inside a company he thinks is fully relieved.

The obvious fix is the wrong one. If he pays the £200,000 out as a dividend, he pays 39.35% dividend tax, which is £78,700, leaving £121,300 in his personal estate where it is taxed at 40%, another £48,520. Total cost £127,220, against the £80,000 of inheritance tax the £200,000 was exposed to inside the company. He is £47,220 worse off for tidying up.

What works is putting the money to work in the trade, or selling the investment unit and reinvesting the proceeds in the business, so the assets stop being surplus. The catch is timing: the test looks at whether the asset was used for the business throughout the last two years, or is genuinely needed for future business use. A reshuffle in the final months does not qualify. This is a two-year project, not a deathbed one.

Signing a contract to sell

In late 2026 a competitor offers £2,400,000 for the company. If Mr Ormerod signs a binding contract and then dies before completion, the shares stop being relevant business property and the relief disappears. He would be holding £2,400,000 of taxable value instead of £2,400,000 of fully relieved value, a swing of £960,000 in inheritance tax from one signature.

Two narrow exceptions survive: a sale of the business to a company in exchange mainly for shares in that company, and a sale of shares made for a reconstruction or amalgamation. Neither describes a straightforward cash exit. If you are a founder with a sale in prospect and a health question in the background, this is the sequencing decision that matters most, and it is one of the few in tax where the answer can genuinely be to wait.

Assuming a company wrapper creates relief

The most common plan we are asked to check is to move a buy-to-let portfolio into a family investment company on the basis that the shares will then qualify. They will not. Unquoted shares are in the list of qualifying assets, so the plan looks right on the face of it, but the test then runs through to what the company actually does, and a company holding rental property is making and holding investments. Relief is refused at company level and the shares get nothing.

Family investment companies do other useful things, including freezing the value of what you already own and moving future growth to the next generation. Relief is not one of them. The comparison is set out on our family investment company against discretionary trust page, and the specific myth is dismantled on our family investment company and the BPR myth page.

Getting the two-year rule wrong in both directions

You need two years of ownership before anything qualifies, and people worry about that more than they need to. If one qualifying asset replaced another, you only need two years of combined ownership within the five years before the transfer, so a genuine reorganisation does not send you back to the start. If you inherited the asset, you are treated as owning it from the date of the death, and if it came from your spouse or civil partner their period of ownership counts as yours as well. What breaks the chain is replacing something that qualifies with something that does not, which is exactly what selling a trading business and buying rental property does.

How is the allowance split between agricultural and business property relief?

It is not split, and this is where mixed estates get caught. APR and BPR share one allowance. The £2,500,000 covers agricultural and business property relief together, so if you own both, they compete for the same headroom. If you own £2,000,000 of qualifying farmland and £1,500,000 of trading company shares, you do not have £3,500,000 of cover. You have £2,500,000 at 100% and £1,000,000 at 50%, and which of the two you treat as filling the allowance makes no difference to the total.

The Budget announcement of 30 October 2024 covered both reliefs at once, and the changes to Agricultural Property Relief run in parallel with the business relief changes throughout. If farmland is part of the picture, the allocation question is a real one and it interacts with who inherits what, so it is worth working through before a will is drafted rather than after. Our agricultural relief for inheritance tax page covers the farmland side, and the fuller mechanics of the cap are on our April 2026 BPR and APR cap page.

What to do next

If you own property and nothing else, this relief is not your route, and your inheritance tax planning needs to be built on something else. Our inheritance tax on rental property guide is the better starting point.

If you own a trading business as well, there are three questions worth answering before anything else, and they are answerable on paper in an afternoon. What is genuinely qualifying today, once surplus assets are taken out. How much of the £2,500,000 you and your spouse would actually use on current values, and how much headroom is going spare. And whether anything you are planning in the next two years, a reorganisation, a sale, a gift, would break a clock you are relying on.

Send us the balance sheet, the share register and a note of anything you have already given away, and we will answer those three questions in figures a solicitor can draft a will from.