Direct answer: From 6 April 2026, Business Property Relief (BPR) and Agricultural Property Relief (APR) will no longer provide unlimited 100 percent inheritance tax relief. Full relief will be capped at £2.5 million per person, with any excess qualifying assets receiving only 50 percent relief, creating an effective 20 percent inheritance tax charge on the excess.

For couples, the allowance is transferable, giving a potential £5 million combined 100 percent relief, but estates above this level will face inheritance tax for the first time, often without sufficient cash to pay it.

Key Facts at a Glance

  • Effective date: 6 April 2026
  • Reliefs affected: Business Property Relief (BPR) and Agricultural Property Relief (APR)
  • Full relief limit: £2.5 million per person
  • Relief above limit: 50 percent
  • Effective tax rate on excess: 20 percent
  • Transferable between spouses or civil partners: Yes
  • Instalments available: Up to 10 years for qualifying business and agricultural assets
  • Applies alongside: Nil Rate Band and Residence Nil Rate Band

What Are BPR and APR?

Business Property Relief (BPR) and Agricultural Property Relief (APR) are inheritance tax reliefs designed to allow trading businesses and farms to pass between generations without being broken up to pay tax.

APR applies to qualifying agricultural land, buildings, and in some cases farmhouses. BPR applies to qualifying trading businesses, including unlisted shares and interests in partnerships.

Until now, both reliefs could apply at 100 percent with no upper limit.

What Changes from 6 April 2026

From 6 April 2026:

This is a structural change. It introduces a permanent inheritance tax exposure for larger family businesses and farms, even where assets remain fully trading.

Worked Example: Single Business Owner

A family business is valued at £4 million and qualifies fully for BPR.

  • £2.5 million at 100% relief = £0 tax
  • £1.5 million at 50% relief leaves £750,000 taxable
  • Inheritance tax at 40% on £750,000 = £300,000
Before April 2026: £0 tax | After April 2026: £300,000 tax

Worked Example: Married Couple or Civil Partners

A jointly owned trading business and farm is valued at £6 million, fully qualifying for BPR and APR.

  • Combined 100% relief available: £5 million
  • Excess above allowance: £1 million
  • 50% relief applied to excess leaves £500,000 taxable
  • Inheritance tax at 40% = £200,000
The assets remain in the family, but liquidity is required to pay the tax.

Why This Matters for Family Businesses and Farms

Most family businesses and farms are asset rich but cash poor. The new rules mean:

Rising Values Mean More Families Affected Over Time

Rising land and business values mean more families will be caught over time, even if they are below the thresholds today. The £2.5 million cap is not index-linked.

Interaction with Other Inheritance Tax Rules

The BPR and APR caps sit alongside existing inheritance tax rules, including:

For many estates, the combined effect is a larger and earlier inheritance tax exposure than expected.

Model Your Business or Farm IHT Exposure

See how the BPR and APR caps affect your inheritance tax liability. Get instant indicative insurance cost estimates.

Use the IHT Calculator

Planning Implications

The change shifts planning away from pure relief reliance and toward liquidity planning.

Common responses include:

For many families, insurance-based liquidity planning becomes the most practical solution because it provides certainty without disrupting ownership or control.

Why Accurate Modelling Matters

Many online calculators and commentary still assume unlimited BPR and APR. That assumption will be wrong from April 2026.

Accurate modelling allows families to:

Important Disclaimer

This page provides technical background and general information only. It does not constitute personal tax, legal, or financial advice. Inheritance tax outcomes depend on individual circumstances, asset structure, relief qualification, and future legislation. Always consult a specialist tax accountant or solicitor for personalised advice — we focus solely on the protection element, working alongside your trusted advisers.