Inheritance Tax Calculator
Build up your estate from its individual assets and liabilities, model gifts made in the last 7 years, and estimate the Inheritance Tax due, including the nil-rate band, the residence nil-rate band, spouse and charity exemptions, and transferable allowances.
Estimate only. 2026/27 estimate, verify with gov.uk/HMRC; not tax advice.
Enter the estate value
Your estimated Inheritance Tax bill appears here as you type.
How Inheritance Tax is calculated
Inheritance Tax is charged at 40% on the part of an estate above the tax-free nil-rate band of £325,000. If you're leaving your home to children or grandchildren, an extra £175,000 residence nil-rate band applies, capped at the value of the home if that's lower, and tapering away by £1 for every £2 the estate is worth over £2 million. Both allowances can typically be transferred to a surviving spouse or civil partner, so a widowed person can potentially pass on up to £1 million tax-free.
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