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This calculator is kept on the site as a quick utility, but it is not the focus of IsMyTaxDigital. If you came here for MTD, the right starting point is the MTD eligibility checker.
Estate planning

UK Inheritance Tax Calculator (2026-27)

A simplified IHT estimate using the standard nil-rate band, residence nil-rate band (with £2m taper), and transferable spouse allowance. Does not handle gifts, trusts, or business/agricultural reliefs.

Tax year: 2026-27 · Last reviewed: 30 April 2026 · Source: GOV.UK Inheritance Tax

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Your estimate

Inheritance Tax estimate

Estate after estimated IHT

£590,000

From a £650,000 estate

Of the estate value:

Beneficiaries receive90.8%
IHT9.2%
Estate value£650,000
Nil-rate band£325,000
Residence nil-rate band£175,000
Total available threshold£500,000
Taxable estate£150,000
Estimated IHT at 40%£60,000
Estate after estimated IHT£590,000

This is a simplified estate estimate. It does not handle gifts, trusts, reliefs, charity rate reductions, debts, or business/agricultural property reliefs. This calculator provides a broad estimate only and is not tax advice.

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What this calculator does

It estimates Inheritance Tax using the standard nil-rate band, the residence nil-rate band, the £2m residence allowance taper, and an optional transferable spouse or civil partner allowance.

What it does not include

The estimate does not model lifetime gifts, trusts, business relief, agricultural relief, debts, charity gifts, or estate administration costs. Use it as a first-pass check before taking advice.

Official source reference

The bands and basic rules are based on the GOV.UK Inheritance Tax guide. Estates with gifts, trusts, business assets, farms, overseas property, or complex family arrangements need a tailored calculation.

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