Inheritance Tax (IHT)

Estimate the IHT due on an estate, including transferred allowances and the residence nil-rate band. Bands frozen until April 2030.

Your details

All values calculated using 2026/27 (bands frozen since 2020/21) figures.

£
Is a main residence being left to direct descendants (children/grandchildren)?
Was the deceased married/civil partner whose spouse predeceased them, transferring 100% of unused NRB and RNRB?

If 10% or more, the IHT rate falls from 40% to 36%.

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How this is calculated

UK Inheritance Tax (Inheritance Tax Act 1984) is charged at 40% on the value of an estate above the available nil-rate bands. The rate falls to 36% where 10% or more of the net estate is left to charity.

  • Nil-rate band (NRB): £325,000.
  • Residence nil-rate band (RNRB): £175,000, available where a main residence is left to direct descendants.
  • Spouse/civil-partner transfer: 100% of any unused NRB and RNRB transfers to the survivor — a married couple can shelter up to £1m.
  • RNRB taper: for estates above £2m, RNRB is reduced by £1 for every £2 over the threshold.

Bands are frozen at these levels until April 2030 (announced in the November 2022 Autumn Statement and confirmed in subsequent Budgets).

Sources