Using Life Insurance to Pay Inheritance Tax

Inheritance tax has a habit of arriving at the worst possible moment. Your family is grieving, the estate is frozen pending probate, and yet HM Revenue & Customs expects the bill, potentially 40% of everything above the tax-free thresholds, to be settled before much of the estate can even be touched. Life insurance is one of the neatest solutions to that timing problem: a policy that pays out a tax-free lump sum on death, ring-fenced to cover the tax so nobody has to sell the family home in a hurry.

Used well, it is an elegant piece of planning. Used carelessly, outside a trust, or without checking the sums, it can add to the very problem it was meant to solve. This guide explains how the approach works, the two main types of policy, why the trust wrapper is non-negotiable, and how to weigh the premiums against the projected bill. It is information, not personal advice; your own arrangement should be set up with a regulated adviser.

What life insurance actually does for IHT

The first thing to be clear about is what life insurance does not do. It does not reduce your estate, and it does not cut the rate of inheritance tax. The nil-rate band remains £325,000 and the residence nil-rate band a further £175,000, both frozen until 2030, with 40% charged on the excess. If your estate faces a £200,000 tax bill, that bill still stands whether or not you hold a policy.

What insurance does is provide the cash to pay it. Inheritance tax is generally due within six months of the end of the month of death, and crucially, much of it must be paid before the grant of probate is issued. That creates a chicken-and-egg trap: the executors cannot release the estate to raise the money until probate is granted, but probate will not be granted until the tax is paid. A life policy, written in trust, sidesteps the trap entirely by delivering a lump sum straight to your beneficiaries, who can then lend or hand it to the executors to clear the bill. If you want to shrink the liability itself rather than fund it, that is a different exercise covered in our guide on how to reduce inheritance tax legally.

Why the policy must be written in trust

This is the single most important detail, and the one most often missed on older policies. If a life insurance policy is not written in trust, the payout is treated as part of your estate. That means two things, both bad. First, the money itself can be taxed at 40%, so a £300,000 payout intended to clear a £300,000 bill leaves you £120,000 short. Second, the proceeds cannot be released until probate has been granted, which defeats the whole purpose of using insurance to beat the probate timing trap.

Writing the policy in trust solves both problems. The policy proceeds are held for your chosen beneficiaries and sit outside your taxable estate, so they escape the 40% charge. And because the trustees, not the executors, control the money, the insurer can usually pay out within days of receiving a death certificate, long before probate concludes. Placing a policy in trust is normally free, involves a short form from the insurer, and is one of the highest-value administrative steps in the whole of estate planning. For older policies that were never placed in trust, it is well worth asking your adviser whether that can now be put right.

The two main types of policy

There are two broad routes, and they serve different purposes. A whole-of-life policy is designed to last as long as you do and is guaranteed to pay out whenever you die, which makes it the natural tool for a tax bill that will exist no matter how long you live. A gift inter vivos policy is a specialised decreasing-term policy that covers the tapering tax liability on a large gift during the seven years it takes for that gift to fall fully outside your estate.

Most people using insurance to meet an inheritance tax bill choose whole-of-life cover, because the underlying liability is permanent. A gift inter vivos policy is more of a tactical fix: if you have just handed a child £500,000 towards a house, it insures the tax that would fall due should you die inside the seven-year window that governs gifts. That window is explained in detail in our sibling material on inheritance tax planning, and you can see the wider set of allowances in our answer on the inheritance tax threshold.

Costs and how to weigh them

Whole-of-life cover is not cheap, and it should not be sold as though it is. Because the insurer knows it will pay out one day, premiums are far higher than for ordinary term insurance and rise steeply with age and any health conditions. A guaranteed premium locks the cost for life; a reviewable premium starts lower but can be increased at set review points, sometimes sharply in later years. The honest test is whether the total premiums you expect to pay come to less than the tax the policy will settle, and for many healthy people in their sixties, they comfortably do.

It is also worth remembering that premiums paid into a policy in trust are themselves gifts, though they will usually be covered by the annual £3,000 exemption or, more often, by the exemption for normal expenditure out of income, regular gifts made from surplus income that do not reduce your standard of living. Keeping a simple record of income and outgoings makes that exemption far easier for your executors to claim. Because premiums, tax bands and your health all interact, this is a classic case for modelling: a regulated adviser can project the likely bill and set the sum assured to match, so you are neither under-insured nor paying for cover you do not need. Remember that where investments back any wider plan, their value can fall as well as rise.

Setting a policy up: a checklist

• 1

  Estimate the bill

  Value the estate and work out the tax due above the available nil-rate bands. Our guide to valuing an estate, linked below, walks through this.

• 2

  Decide the type of cover

  Whole-of-life for a permanent liability; gift inter vivos to insure a specific large gift for seven years.

• 3

  Set the sum assured

  Match the payout to the projected bill, allowing for the thresholds staying frozen until 2030 and estates tending to grow.

• 4

  Choose the premium basis

  Guaranteed for certainty, or reviewable for a lower start with the risk of future increases.

• 5

  Write it in trust from day one

  Complete the insurer’s trust form so the payout stays outside your estate and pays out fast. This is the step you cannot skip.

• 6

  Review it periodically

  Revisit the cover after major life events, a house move, a large gift, a change in the rules, to keep the sum assured aligned.

Is it the right approach?

Insurance is not the only answer, and for some estates it is not the best one. The alternative is to reduce the taxable estate itself, through gifting, trusts, business relief or charitable giving, so that less tax is due in the first place. The two approaches are not rivals; the most robust plans usually combine them, shrinking the estate over time while insuring whatever residual bill remains. The comparison below sets out the trade-off.

Whether cover makes sense comes down to your health, your age, the size of the projected bill and how much of your wealth you are willing to give away in your lifetime. Because both the premiums and the tax rules can shift, this is territory where independent, regulated advice pays for itself. Vetted Wealth is a free concierge service that matches you with an independently vetted, FCA-regulated adviser: we do not give advice ourselves, but we can connect you with someone who does. You can read more about the broader discipline in our overview of what wealth management involves.

Common questions on inheritance tax