Business Property Relief (BPR) Calculator

BPR Rates by Asset Type

Expert Guide: Business Property Relief (BPR) 2026

What Is Business Property Relief?

Business Property Relief (BPR) is an IHT relief that can reduce or eliminate the IHT charge on qualifying business interests. Introduced in the 1976 Finance Act and consolidated in IHTA 1984 ss.103-114, BPR exists to prevent IHT forcing the break-up of viable trading businesses on the owner's death. Prior to the Budget 2024 changes, 100% BPR meant the entire value of a qualifying business could pass IHT-free to the next generation.

Budget 2024: The £1m Cap — How It Changes Everything

The October 2024 Budget introduced the most significant BPR reform since the relief was expanded in 1992. From 6 April 2026, the 100% BPR rate is capped at £1 million per person (combined with APR). The rules are:

• First £1 million of qualifying BPR assets (net of APR used): 100% relief — zero IHT
• Qualifying BPR assets above £1 million: 50% relief — effective IHT rate of 20%
• The cap is per-person, not per-asset; married couples each get £1m
• The cap is not transferable between spouses (unlike NRB and RNRB)
• Existing wills may need updating — assets left to a spouse are BPR-exempt already (spouse exemption); the cap matters for assets left to others

The Two-Year Ownership Requirement

A fundamental condition for BPR is that the business property must have been owned for at least two years immediately before the transfer (death or gift). This prevents deathbed purchases of qualifying shares to obtain IHT relief. Key points:

• Replacement property (e.g. swapping shares in one qualifying company for another) can inherit the ownership period in some circumstances
• Inherited property can aggregate the deceased's ownership period for the purpose of meeting the 2-year rule
• A business started within 2 years of death will not qualify, however viable it may be

Trading vs Investment — The Critical Test

BPR only applies to businesses that are "wholly or mainly" trading. HMRC uses a multi-factor test examining time spent, turnover, assets, and costs. If more than 50% of the business activity is investment rather than trading, BPR may be denied entirely. The test is applied to the business as a whole:

• Clearly trading: Manufacturing, retail, service businesses, professional firms, active property development companies
• At risk: Businesses holding significant investment portfolios, property rental income alongside trading activities, large cash balances
• Clearly non-qualifying: Pure property investment companies, holding companies of passive investments, money lending

Excepted Assets

Even where a company qualifies for BPR, HMRC reduces the qualifying value by the value of "excepted assets" — assets neither used in the business nor required for future use. Common excepted assets include:

• Surplus cash beyond working capital requirements
• Investment portfolios held by the company
• Development land not used in the current trading business
• Holiday homes or non-trading property held by the company

HMRC's guidance on what constitutes a "reasonable" cash holding is deliberately vague and is frequently disputed. Specialist valuers and tax advisers can evidence why higher cash balances are needed for trading purposes.

AIM Shares After Budget 2024

Before the Budget, AIM (Alternative Investment Market) shares in qualifying trading companies received 100% BPR after just 2 years of holding. This made AIM ISAs and AIM portfolios an extremely popular estate planning tool — providing market liquidity while sheltering the full value from IHT. Post-Budget 2024 changes:

• AIM shares still qualify for BPR — the relief is not abolished
• From April 2026, only the first £1m of AIM portfolio value gets 100% relief; the balance gets 50%
• AIM portfolios above £2m will have IHT charges even with BPR
• The 2-year holding period condition remains
• ISA wrapper does not affect BPR — AIM ISAs are still viable but less powerful for large estates

IHT Instalment Option for Business Assets

Where BPR is unavailable or insufficient to eliminate IHT, the executors can elect to pay IHT on business property in 10 equal annual instalments. This prevents forced sale of the business to fund an immediate IHT bill. Interest accrues on the outstanding balance at HMRC's current rate. If the business or shares are sold, the remaining IHT becomes immediately payable.

Lifetime Gifts of Business Property

A lifetime gift of qualifying business property can be a Potentially Exempt Transfer (PET) or, if BPR applies, potentially exempt immediately. Key considerations:

• If BPR conditions are met at the date of the gift and still met at date of death, no IHT arises on a death within 7 years
• If conditions are no longer met at death, full IHT (with taper relief) may apply to the gift
• Gifting business shares before April 2026 may allow the recipient to restart their own 2-year clock for BPR eligibility
• Reservation of benefit rules are particularly relevant — maintaining control or involvement post-gift can create a reservation

Worked Examples: Budget 2024 Impact