Doubles your nil-rate band allowance (spouse exemption)
Leaving home to direct descendants
Qualifies for the Residence Nil-Rate Band (£175,000)
Gifts (PETs)
Potentially Exempt Transfers - gifts made within 7 years may still be subject to IHT with taper relief.
Business & Agricultural Assets
Enter the market value of qualifying assets you own — not the relief amount.
From 6 April 2026, the first £1m of combined Business + Agricultural assets per person
qualifies for 100% relief; anything above that gets 50% relief (effective 20% IHT).
The £1m allowance is transferable to a surviving spouse, so a couple can shelter up to £2m at 100%.
Unlisted trading company shares, sole-trader/partnership interests held 2+ years. Do NOT include AIM-listed shares — from April 2026 they get a flat 50% relief with no £1m cap and need to be modelled separately.
Farmland, farm buildings & farmhouses owned and used for agriculture (subject to occupation/ownership rules).
Worked example: A couple owning a £3m farm — first £2m at 100% relief (£2m), remaining £1m at 50% relief (£500k). Total relief = £2.5m. Taxable balance = £500k.
Enter your estate details and hit calculate to see your IHT liability.
Important: This calculator provides estimates based on UK IHT rules effective 6 April 2026
(£1m combined Business + Agricultural Relief cap at 100%, 50% above) and the April 2027 inclusion
of unused DC pension pots in the estate (Finance Act 2025). It is not financial or legal advice;
APR/BPR qualification depends on ownership period, occupation tests, and asset type, and AIM shares
receive 50% relief from April 2026 (not 100%). For estates approaching the £1m cap or involving
business/farm assets, please consult a qualified financial adviser or STEP-qualified solicitor.