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Pension inheritance tax calculator (from April 2027)

See how much inheritance tax your estate could pay now, and how much more once unused pensions count from 6 April 2027.

Built by Tomás, Pension Numbers
Rules and rates checked on 7 October 2026. Nothing you enter is sent anywhere.

Autumn Budget on 28 October 2026. If the rules change, we will update this calculator that week.

Your situation

Your share, after any mortgage. Enter 0 if you don't own a home.

Savings, ISAs, investments, other property, cars and valuables.

Defined contribution pensions you have not spent: personal pensions, SIPPs, most workplace pensions, including money in drawdown.

How this calculator works

It works out inheritance tax twice: once on your estate without the pension, as for deaths before 6 April 2027, and once with the pension added, as for deaths from 6 April 2027.

  • Nil-rate band: £325,000, doubled to £650,000 if a late partner's band was unused.
  • Residence nil-rate band: up to £175,000 (or £350,000 with a late partner's), but never more than the value of the home, and only if the home goes to direct descendants.
  • Above an estate of £2 million, the residence band falls by £1 for every £2. From April 2027 the pension counts towards that £2 million.
  • Tax is 40% of everything above the allowances.

It assumes the whole transferable allowance is available, no gifts in the last seven years, no charity gifts, no business or agricultural relief, and that the pension is not left to a spouse or charity. Death-in-service benefits are outside inheritance tax and should not be included.

Sources and assumptions

This calculator gives an estimate based on the rules shown. It is not personal financial advice. Check your own figures with your pension provider, GOV.UK or a regulated adviser before you act.

Guides that explain the rules