Whole of life insurance calculator
Estimate the inheritance tax your estate could face, the cover that would pay it, and what the premiums would add up to. Change any figure and the answer updates straight away.
What whole of life insurance is
Whole of life insurance pays a lump sum whenever you die, as long as you keep up the premiums.9 Term insurance is different: it only pays if you die within a set number of years. Because a whole of life policy is certain to pay out, it costs more than term cover for the same amount.
People mostly buy it for one job: to leave a sum that pays the inheritance tax on their estate. Your family can then keep the house or the investments instead of selling them to pay HMRC.10
How the inheritance tax sum works
Inheritance tax is charged at 40% on the part of an estate above the tax-free allowances.1 Everyone has a nil-rate band of £325,000. If your home goes to your children or grandchildren, you also get a residence nil-rate band of up to £175,000, which we call the home allowance.2 The home allowance can't be more than the value of the home.4
With the example figures, a married couple leave an estate of £1,200,000, including a £500,000 home that goes to their children. On the second death the estate has two nil-rate bands (£650,000) and two home allowances (£350,000), so £1,000,000 is tax-free. The other £200,000 is taxed at 40%, a bill of £80,000. A whole of life policy for £80,000 would pay it.
Married couples and civil partners
Anything you leave to your husband, wife or civil partner is free of inheritance tax, and any allowance you don't use passes to them.1 That means the surviving partner can have up to £650,000 of nil-rate band5 and up to £350,000 of home allowance6, up to £1 million in all.10 The calculator assumes the first of you to die leaves everything to the other and uses none of the allowances. If the first of you leaves money to anyone else, less allowance passes on and the bill could be higher.
Estates over £2 million
The home allowance falls by £1 for every £2 the estate is worth over £2 million.3 An estate of £2,200,000 loses £100,000 of it. A single person loses the whole allowance at £2,350,000, and a couple at £2,700,000. The £2 million test uses the estate's value before any exemptions or reliefs.4
Pensions from April 2027
For deaths on or after 6 April 2027, most unused pension funds and pension death benefits will count as part of the estate. Death in service benefits are left out.7 If an estate is already over the allowances, a £300,000 pension pot left unspent adds £120,000 or more to the bill. Add any pension you don't expect to spend.
Thresholds are frozen until 2031
The £325,000 nil-rate band hasn't changed since April 2009.2 The government has fixed it, the £175,000 home allowance and the £2 million taper for every tax year up to and including 2030 to 2031.3 If house prices and investments keep rising while the allowances stay put, more of your estate becomes taxable. Nobody knows what the thresholds will be after 5 April 2031.
Allowances at a glance
| Nil-rate band | Home allowance | Total tax-free | |
|---|---|---|---|
| Single person | £325,000 | up to £175,000 | up to £500,000 |
| Married couple or civil partners | £650,000 | up to £350,000 | up to £1,000,000 |
| Estate over £2 million | no change | £1 less per £2 over | falls |
Fixed until 5 April 2031. The home allowance only applies if your home goes to children, grandchildren or other direct descendants, and is capped at the home's value.3, 4
What the calculator leaves out
It gives an estimate, not tax advice. It doesn't include:
- gifts made in the 7 years before death, which can use up the nil-rate band
- business relief and agricultural relief, which can take 50% or 100% off qualifying assets
- the reduced rate of 36% when you leave 10% or more of the net estate to charity1
- other exemptions and reliefs, trusts you've already set up, and assets held overseas.
If any of these apply, a solicitor or tax adviser can work out the exact bill.
Write the policy in trust
If the payout goes into your estate, it's taxed along with everything else, and your family could lose 40% of it. Written in trust, the money goes straight to the trustees you name, stays outside your estate and doesn't have to wait for probate.9 This also helps with timing. Inheritance tax is due by the end of the sixth month after death, and some of it usually has to be paid before probate is granted.8 A policy in trust can pay the bill before the estate is released. Most insurers provide a trust form at no cost.
Joint life, second death
Couples often choose a joint policy that pays out when the second of you dies. That's when the bill usually arrives, because everything left to a spouse or civil partner is tax-free. A second death policy covers two lives but pays once, and it usually costs less than two single policies. For a couple, enter the younger partner's age and pick a "live to" age for the second death.
Guaranteed or reviewable premiums
With guaranteed premiums, the price is fixed when you start and doesn't change. A guaranteed premium costs more at the start, but you know what you'll pay for the rest of your life. With reviewable premiums, the insurer checks the price every 5 or 10 years and can raise it. They start cheaper but can rise to a level you can't keep paying.9 If you stop, the cover ends and you get nothing back. The premium part of the calculator assumes a flat premium, so for a reviewable policy treat the total as the least you'd pay.
Will you pay in more than it pays out?
With the example figures, £200 a month from age 55 to 90 comes to £84,000. The premiums pass the £80,000 of cover at age 88. Die before then and the policy pays out more than it cost; live longer and it pays out less.9 The "live to" age is only a choice for the sum. Try a few ages to see the range.
Some policies stop taking premiums at 90 or 100 while the cover carries on. That caps what you'd pay if you live a long time, but those policies usually cost more each month. Set "premiums payable" to match your quote.
Over 50s plans are a different product
Over 50s life insurance is also a whole of life policy, but it's built for small sums, usually to help with a funeral. There are usually no health questions, the payout is often a few thousand pounds, and it's limited if you die in the first year or two. It won't cover a six-figure tax bill. See our over 50s life insurance calculator for those plans.
Questions people ask
How much whole of life insurance do I need for inheritance tax?
Enough to pay the tax bill your estate would face. Take the value of everything you own, add unused pensions, take off your debts, then take off the tax-free allowances. Tax is 40% of what's left.1 The calculator above does this sum and rounds the answer up to the next £5,000.
Your estate may grow before you die, especially if the home rises in value, so some people add a margin. Many insurers also let you index the cover so it rises each year, at a higher premium.
Does whole of life insurance have a cash value in the UK?
Usually not. Most whole of life policies sold in the UK today are protection policies. They pay out when you die and have no cash-in value. If you stop paying, the cover ends and you get nothing back. "Cash value" calculators you may find online are usually American, where some whole life policies build up savings. This calculator doesn't try to work out a cash value.
How much does whole of life insurance cost?
We don't publish whole of life prices, because we don't have reliable ones to share. The price depends on your age, health, whether you smoke, the cover amount, and whether the premiums are guaranteed or reviewable. A joint policy that pays out on the second death usually costs less than two single policies. Get quotes from an insurer or broker, then put the monthly figure into the calculator to see what it adds up to.
Is whole of life insurance worth it?
It depends on how long you live and what the money is for. If you die early, the policy pays out far more than you paid in. If you live a long time, you may pay in more than it pays out.9 The policy gives your family a known sum, paid quickly, to put towards the tax bill without selling the house. If your estate has plenty of cash, or no tax to pay, you may not need it.10
Why write a whole of life policy in trust?
A payout that goes into your estate is counted as part of it, so it can add to the tax bill it was meant to pay. Written in trust, the money is paid to the trustees you choose, outside your estate, and usually without waiting for probate.9 That matters because inheritance tax is due by the end of the sixth month after death, and some of it usually has to be paid before probate is granted.8 Most insurers offer a trust form for free. A solicitor can check it suits your will.
What happens if I stop paying the premiums?
On most UK whole of life policies the cover stops and you get nothing back. Some policies stop taking premiums at 90 or 100 and keep the cover in place for life. Check the policy summary before you buy, and make sure the premium is one you can keep paying in retirement.
Do pensions count towards inheritance tax?
From 6 April 2027, yes for most people. For deaths on or after that date, most unused pension funds and pension death benefits count as part of the estate. Death in service benefits and dependants' scheme pensions are left out.7 Add any pension pots you don't expect to spend to the calculator, as they can push an estate over the allowances or over the £2 million taper.
How is whole of life different from over 50s life insurance?
Over 50s plans are a separate, simpler product. You're usually accepted without health questions, the payout is small (often a few thousand pounds, aimed at a funeral) and the payout is limited if you die in the first year or two. Whole of life insurance for inheritance tax is medically underwritten and can cover hundreds of thousands of pounds. Our over 50s life insurance calculator shows what those plans add up to.
Sources
- GOV.UK: Inheritance Tax, checked 30 September 2026
- HM Revenue & Customs: Inheritance Tax thresholds and interest rates (updated 6 April 2026), checked 30 September 2026
- HM Revenue & Customs: Inheritance Tax: thresholds (policy paper, 26 November 2025), checked 30 September 2026
- HM Revenue & Customs: Inheritance Tax: residence nil rate band, checked 30 September 2026
- HM Revenue & Customs: Transferring unused basic threshold for Inheritance Tax, checked 30 September 2026
- HM Revenue & Customs: Transferring unused residence nil rate band for Inheritance Tax, checked 30 September 2026
- HM Revenue & Customs: Inheritance Tax on unused pension funds and death benefits (policy paper, 26 November 2025), checked 30 September 2026
- GOV.UK: Pay your Inheritance Tax bill, checked 30 September 2026
- MoneyHelper: What is life insurance?, checked 30 September 2026
- MoneyHelper: A guide to Inheritance Tax in the UK, checked 30 September 2026