What’s the role of whole of life assurance and Inheritance Tax (IHT)?

As property values and personal wealth have grown, IHT has become a practical concern for many families – not just the very wealthy.

As a result, whole of life assurance is increasingly used as part of estate planning. It can help families meet future IHT bills without having to sell assets or make rushed decisions at a difficult time.

This isn’t about complicated tax schemes. It’s about certainty, access to cash and giving loved ones time to think clearly.

Here, we look at the basics of IHT, how whole of life assurance is commonly used, and why structure and long-term affordability really matter.

Why Inheritance Tax is catching more families

The IHT rules themselves haven’t changed, but their impact has grown.

• The nil-rate band remains at £325,000¹ (unchanged since 6 April 2009)
• The residence nil-rate band remains at £175,000 (unchanged since 2017)
• Property prices and private wealth have continued to rise

More estates are now crossing the tax threshold, often without realising it. For many families, the worry isn’t just the size of the tax bill – it’s how it’ll be paid.

Estates are often tied up in property, businesses or long-term investments. That can make finding cash at short notice difficult, especially when tax is due before assets are sold.

This is where protection planning can play a helpful role.

What is whole of life assurance?

Whole of life assurance is a type of insurance policy that provides a guaranteed payout when you die, whenever that may be – as long as premiums are paid.

In estate planning, it’s often used to create a known sum of money, earmarked to help cover IHT.

For couples, policies are commonly arranged as joint life, second death. This means the policy pays out after the second person dies – which is when IHT is usually due.

The aims for using whole of life assurance are simple:

• To create a predictable pot of money
• To ensure funds are available quickly outside the estate
• To reduce the need for families to sell assets under pressure

At its heart, this is about supporting the people you care about, not chasing tax efficiency for its own sake.

Because these policies are long-term, good advice focuses on:

• Whether premiums are affordable now and, in the future
• How premiums might change over time
• Regular reviews to keep the policy aligned with your wider plans

Whole of life assurance works best when it’s part of a joined-up financial plan.

Why trusts are commonly used

Where Whole of life assurance is intended to help with IHT, the policy is usually written into trust.

This helps ensure the proceeds:

• Sit outside your estate for IHT
• Avoid probate delays
• Can be paid quickly to those handling your affairs

Trusts can be very effective, but they aren’t something to rush into. They introduce responsibilities, rules and ongoing considerations that need to be clearly explained and kept under review.

The important point is that trusts are a tool – not a solution in their own right. They need to be used carefully and reviewed regularly.

Looking beyond the headline payout

One common mistake is focusing only on the sum assured – the amount the policy will pay out.

Over time, what can matter just as much is:

• How much you pay in premiums
• How long those premiums are likely to run
• How the arrangement fits within your wider estate

This is why a long-term view is essential. Whole of life assurance is a commitment, and it should only be used where it genuinely supports your objectives.

Using surplus income to fund premiums

In some cases, premiums can be paid from surplus income – meaning income you don’t need for your normal lifestyle.

For this to work properly:

• Payments must come from income, not savings
• They should be regular
• They shouldn’t affect your standard of living

When done correctly, this can work neatly alongside estate planning. But it relies on good record-keeping and regular reviews – especially if income or spending changes over time.

Final thoughts

Used thoughtfully, whole of life assurance can provide clarity at a time when needed most. It can help:

• Meet IHT liabilities without panic
• Protect assets built up over a lifetime
• Give loved ones the space to make calm, considered decisions

With IHT thresholds frozen and estates growing, taking time to review your arrangements – and keeping them under regular review – can make a real difference.

You can speak to us if you’re looking for more support and information.

Sources

¹ Inheritance Tax — thresholds – GOV.UK

The contents of the article have been prepared solely for information purposes. The information and/or any reference to specific instruments contained in this article does not constitute an investment recommendation or tax advice. Tax treatment depends on your individual circumstances and may be subject to change in the future.