Business Property Relief (BPR) is one of the most powerful tools for reducing UK Inheritance Tax (IHT). It allows qualifying business owners and investors to pass on business assets — including shares in private companies and AIM-listed shares — with 50% or 100% reduction in the asset’s taxable value for IHT purposes. From April 2026, the Autumn Budget 2024 introduced a £1 million combined cap on 100% BPR and Agricultural Property Relief (APR) — a significant change for larger business estates.
Quick answer: BPR reduces IHT by 100% (for qualifying private businesses, sole trader businesses, and AIM shares held 2+ years) or 50% (for some business-related assets). From April 2026, 100% relief is capped at £1 million combined BPR/APR. Assets above the cap get 50% relief. You must own the qualifying asset for at least 2 years.
BPR Relief Rates and Qualifying Assets
| Relief Rate | Qualifying Asset |
|---|---|
| 100% | Sole trader business or trading partnership interest |
| 100% | Shares in an unquoted (private) trading company |
| 100% | Shares in an AIM-listed qualifying company (held 2+ years) |
| 100% | Business assets used wholly or mainly for a qualifying business |
| 50% | Shares in a quoted (FTSE-listed) company where the deceased had control |
| 50% | Land, buildings, or machinery used in a business but owned outside the business |
| 50% | Shares or securities in a qualifying company that are not unquoted |
The April 2026 Cap: What Changed
Prior to April 2026, qualifying business and agricultural property received unlimited 100% BPR/APR relief — a sole trader business worth £10 million could pass free of all IHT. Budget 2024 changed this:
From April 6, 2026:
- The first £1 million of combined qualifying BPR and APR assets: still receives 100% relief (zero IHT)
- Assets above £1 million: receive 50% relief instead of 100% (effectively 20% IHT on the excess — 50% of the 40% standard rate)
Who is most affected: Business owners with estates where the business is worth more than £1 million. Smaller business owners (where the business is worth under £1 million) are entirely unaffected — full 100% BPR still applies to them.
Example — large business estate:
| Asset | Value |
|---|---|
| Qualifying private company shares | £3,000,000 |
| Other estate (home, savings, etc.) | £1,000,000 |
| Total estate | £4,000,000 |
Under old rules (pre-April 2026): £3M BPR at 100% = £0 IHT on business; £1M estate − £325K nil-rate band = £675K × 40% = £270K IHT total.
Under new rules (from April 2026): £1M BPR at 100% = £0; remaining £2M BPR at 50% = £1M included in estate. Total included estate: £1M + £1M = £2M − £325K NRB = £1.675M × 40% = £670,000 IHT.
Qualifying Conditions for BPR
For BPR to apply, four conditions must be met:
1. Ownership period: You must have owned the asset for at least 2 years immediately before death (or the transfer). There are some exceptions for assets inherited from a spouse.
2. Nature of the business: The business must be a trading business — not mainly holding investments. Businesses that mainly hold quoted shares, land for letting, or other investments do not qualify. HMRC applies a “mainly” test — more than 50% of the business by value, turnover, and activity must be trading.
3. The property must still qualify at death: If you gave the business away before death, BPR may not apply to gifts unless the recipient retains the asset and it still qualifies.
4. The asset is not excluded property: Businesses dealing in land, financial products, or that are not genuine trading operations are excluded.
AIM Shares and the IHT-Free ISA Strategy
Shares traded on the London Stock Exchange AIM market can qualify for 100% BPR if:
- The shares have been held for at least 2 years
- The company is a qualifying trading company (not an investment business)
AIM ISA strategy: AIM shares can be held inside a Stocks and Shares ISA. After 2 years of holding qualifying AIM shares, those shares:
- Are sheltered from Capital Gains Tax while inside the ISA
- May qualify for 100% BPR on death, potentially passing with zero IHT
This makes a qualifying AIM ISA one of the few investments that can be both CGT-free and IHT-free — often called an “IHT-free ISA” or “BPR ISA.” The April 2026 cap affects this strategy only if your BPR-qualifying assets (AIM plus business) exceed £1 million combined.
Risks of AIM investing: AIM shares are typically in smaller, less liquid companies. The investment risk is considerably higher than the broader FTSE 100 or FTSE 250. BPR tax benefits do not outweigh investment suitability — only invest in AIM shares appropriate for your risk tolerance.
BPR and Business Succession Planning
For family business owners, BPR reduces — but since April 2026, does not eliminate for large businesses — the IHT burden on business succession. Strategies to consider alongside BPR:
- Life insurance (whole of life in trust): A policy written in trust pays out tax-free on death and can cover any remaining IHT liability after BPR
- Shareholder protection insurance: Ensures surviving partners can buy out the deceased’s share without triggering forced sale
- Pension funding: Pension assets sit outside the estate and pass free of IHT (under current rules — watch for future changes)
- Gifts with 7-year clock: Business gifts start the 7-year potentially exempt transfer (PET) clock; if you survive 7 years, no IHT applies
Related UK Inheritance Tax Resources
- Inheritance Tax Guide 2026 — nil-rate bands, spousal exemption, and how IHT is calculated
- Gifting Rules for Inheritance Tax — annual exemption, PETs, and the 7-year rule
- Capital Gains Tax UK Guide — CGT rates on shares, property, and assets
- ISA Rules 2026 — contribution limits, types, and death rules
- UK Taxes Hub — all UK tax guides for 2026
BPR remains a valuable IHT planning tool even after the April 2026 cap — the first £1 million of qualifying business property is still fully exempt from IHT. Business owners with larger estates should review their succession planning with an adviser to model the impact of the new 50% rate on assets above the cap.
The content on Wealthvieu is for informational purposes only and should not be considered financial, tax, or investment advice. Consult a qualified professional before making financial decisions. Full disclaimer · Editorial policy