Published: 22 April 2026
The Finance Act 2026, receiving Royal Assent in March, introduced a lifetime cap on 100% Business Property Relief (BPR) and Agricultural Property Relief (APR) at £2.5 million per person from 6 April 2026. Previously unlimited, this change exposes family businesses, farms, and AIM holdings to effective 20% IHT on excess value. For couples, the transferable cap reaches £5m, but larger estates face immediate tax bills on death — potentially forcing sales in illiquid markets.
This is not theoretical. Discussions on X highlight real fears: a £12m family farm now incurs £2m IHT above the cap, even with full BPR qualification. Reform UK warns of entrepreneur exodus. Rupert Lowe MP calls it a ‘death tax’ risking collapse. See thread.
What Changed Exactly?
BPR provided 100% IHT relief on transfers of relevant business property: unquoted shares, business assets, land used in trading. APR mirrored for farms. No cap. Now:
- £2.5m lifetime allowance per individual for 100% relief (combines BPR + APR).
- Spousal/civil partner transfer doubles to £5m.
- Excess: 50% relief only (effective 20% IHT at 40% headline rate).
- AIM shares: Fixed 50% BPR (no cap benefit).
- Refreshes every 7 years (like residence nil-rate band).
HMRC valuations apply — often contested. Example: £10m qualifying business. Pre-2026: £0 IHT. Post-cap: £1.5m IHT (£7.5m excess at 20%). HMRC BPR guidance updated post-Finance Act.
Immediate Implications for Family Firms
1. Forced liquidity events: Illiquid assets mean borrowing against the business or partial sales to pay HMRC within 6 months. Farms hit hardest — NFU estimates 30% of holdings exceed cap.
2. Succession disruption: Founders retaining control now risk family disputes or discounts on transfer.
3. Valuation fights: HMRC ‘material participation’ tests tighten; related-party loans excluded. Advisers recommend pre-death reviews.
PE and M&A Angle: Exits Under Pressure
PE portfolio companies often qualify for BPR on founder-held shares. Larger deals (>£5m equity) now face IHT drag on secondary sales or hold-to-exit. Management incentives (EMI/growth shares) lose lustre if underlying value capped.
CFOs: Model IHT in LBO returns. Stress-test founder liquidity on exit. Consider holdco structures or debt-funded gifting pre-2026/27 deaths.
Distressed opportunities rise: Farms/businesses selling to meet IHT. But buyer due diligence on HMRC disputes critical. CityAM coverage flags M&A uptick.
6 Strategies to Mitigate (Implement Now)
- Lifetime gifting: PETs (potentially exempt transfers) outside estate after 7 years. Business assets qualify immediately for BPR if gifted to individuals.
- Trusts: Discretionary trusts hold assets; 10-year charges apply but cap exposure. Spousal exemption aids transfers.
- Life insurance: Whole-of-life policies in trust cover liability. Cost: £50k-£100k pa for £2m cover (age 60).
- Restructure: Extract cash/debt pre-death; sell non-qualifying assets. EMI for key staff preserves value.
- Corporate ownership: Shares in trading cos qualify; investment cos don’t. Review holdings.
- Emigration/relocation: Domicile change post-Brexit viable but complex (5-year rule). Reform UK suggests.
ICAEW/ACCA briefings stress urgency: ICAEW, ACCA.
CFO Checklist for Q2 2026
- Valuations: Independent RICS/Sharesval for HMRC defence.
- Forecasting: IHT model in board packs.
- Succession: Update plans with tax input.
- Compliance: Review BPR claims pre-6/4 deaths.
This cap ends BPR as a ‘full’ relief for substantial estates. Act before first post-2026 deaths crystallise bills. Tanous advises PE CFOs on tax-efficient structures, M&A, turnarounds. Contact Mark Hendy | mark@tanous.co.uk | 30+ years HMRC agent.
Sources: Finance Act 2026, HMRC Manual IHTM24000+, X threads 1 2, ICAEW/ACCA.