Last reviewed: 24 May 2026 by the MP Estate Planning editorial team. Jurisdiction: England and Wales. Scotland and Northern Ireland have different probate and intestacy rules; the IHT thresholds are UK-wide.

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How to Reduce Your Inheritance Tax Liability When Second Parent Dies

Understanding how to reduce your inheritance tax liability when second parent dies is crucial for families looking to protect their estate and pass on assets efficiently. Without proper planning, your family may face a significant tax bill, potentially reducing the inheritance intended for loved ones. In this guide, we’ll explore smart legal strategies to minimise your inheritance tax after the second parent passes away in the UK.

If you’re seeking tailored advice, don’t hesitate to book a free consultation or explore our pricing plans to find the service that suits you best.

Why Inheritance Tax Applies When the Second Parent Dies

In the UK, inheritance tax (IHT) is charged at 40% on estates exceeding the current threshold (usually £325,000). When the first spouse or civil partner dies, the estate is usually passed on outside the scope of IHT due to the spousal exemption. However, the issue often arises upon the death of the second parent—at this point, the entire estate may be subject to IHT unless steps are taken in advance.

Learning how to reduce your inheritance tax liability when second parent dies means using legal tools like trusts, gifts, and allowances effectively.

How to Reduce Your Inheritance Tax Liability When Second Parent Dies: Key Strategies

1. Utilise the Transferable Nil Rate Band

One of the most effective ways to reduce tax liability is by using the transferable nil rate band. If the first spouse did not use their £325,000 threshold, it can be passed on to the second parent. This means the estate of the second parent may have up to £650,000 outside the scope of IHT.

Additionally, families may benefit from the residence nil rate band (up to £175,000 (gov.uk — RNRB) per person) if the home is passed to direct descendants, further increasing the total outside the scope of IHT allowance to £1 million for married couples or civil partners.

2. Make Use of Trusts

Setting up a trust can be a smart and legal way to protect assets. A discretionary trust or life interest trust ensures that money or property is not passed outright, keeping it outside of the estate for tax purposes.

Trusts are often used to delay the transfer of assets until the beneficiaries reach a certain age or meet certain conditions, offering more control and potentially reducing IHT.

3. Give Gifts While Alive

Parents can legally give away assets before their death. If they survive for seven years after making a gift, it becomes exempt from inheritance tax. These are known as Potentially Exempt Transfers (PETs).

You can also take advantage of:

• Annual exemption: £3,000 worth of gifts each year outside the scope of IHT
• Small gifts exemption: Gifts of up to £250 per person per year
• Gifts out of surplus income: If regular and do not affect your standard of living

To maximise these exemptions, you should begin gifting early. Documentation is also key—keep records of what was given, when, and to whom.

Use a Will to Structure Asset Distribution

One of the most overlooked ways to learn how to reduce your inheritance tax liability when second parent dies is by writing a will that includes tax-efficient instructions. Without a will, assets are distributed according to the intestacy rules, which may lead to unnecessary taxation.

A will allows you to:

• Set up trusts
• Use outside the scope of IHT allowances more efficiently
• Directly control how your estate is distributed

If your parents haven’t yet created or updated their wills, it’s essential to act now. You can book a consultation with our specialists for guidance.

Inheritance Tax and Property

The family home is often the largest part of the estate. Under certain conditions, passing the home to children or grandchildren qualifies for the residence nil rate band. However, this only applies if:

• The home was the parent’s main residence
• It is passed to direct descendants (e.g., children, grandchildren)

Understanding how to reduce your inheritance tax liability when second parent dies means planning the future of the family property carefully. Downsizing or using property trusts can also help reduce the taxable value of the estate.

Outright Ownership vs Tenants in Common

If both parents own the home as tenants in common, each can leave their share to different beneficiaries, potentially via trust. This can offer both IHT and care fee planning benefits.

Explore how trusts can protect your family home in our Inheritance Tax Planning page.

Charitable Giving

If your parents leave 10% or more of their estate to a registered UK charity, the inheritance tax rate on the remainder of the estate may be reduced from 40% to 36%.

For more details, see Gov.uk guidance on charitable legacies.

Get Professional Help to Reduce Your Inheritance Tax Liability

Inheritance tax rules are complex, and mistakes can cost families thousands. Getting expert guidance can ensure you’re following the best route and using all available exemptions.

At MP Estate Planning UK®, we help families across the UK preserve their wealth with clear, affordable advice. Learn more about our pricing plans or book a consultation today.

Frequently Asked Questions

Can the second parent’s estate use the first parent’s allowance?

Yes, if unused, the nil rate band and residence nil rate band from the first spouse can be transferred to the second spouse’s estate.

What’s the most tax-efficient way to pass on property?

Using trusts or passing on property early (as a gift) are commonly used strategies. However, each case is different—professional advice is essential.

Does a family trust really reduce inheritance tax?

While not expected, certain types of trusts—when structured correctly—can help keep assets outside your taxable estate. Learn more on our Inheritance Tax Planning page.

Conclusion

Understanding how to reduce your inheritance tax liability when second parent dies is vital for preserving family wealth. With the right planning—such as using allowances, setting up trusts, and creating a tax-efficient will—you can minimise tax liabilities and ensure your estate passes to your loved ones intact.

Need expert guidance? Book a free call with our estate planning experts today, or review our transparent pricing to get started.

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Why Inheritance Tax Is Usually Deferred Until the Second Parent Dies

For many families, the first parent’s death does not trigger an immediate inheritance tax liability. This is because transfers between spouses and civil partners who are both domiciled in the UK are generally exempt from inheritance tax, regardless of the value of assets passing between them. This exemption is commonly referred to as the spousal exemption, and in most cases it means the estate of the first parent to die passes entirely outside the scope of IHT. However, it is important to understand that this exemption does not extinguish the liability — it defers it entirely to the second death, often resulting in a significantly larger taxable estate at that point.

HMRC’s guidance on spouse and civil partner exemptions is set out on GOV.UK, and it is worth reviewing this alongside your own circumstances, particularly where one partner is not UK domiciled, as different rules may apply in those cases.

The Nil-Rate Band and Why It Matters at the Second Death

Each individual has a nil-rate band of £325,000, which is the threshold below which no inheritance tax is charged. Where the first parent left their entire estate to the surviving spouse and no nil-rate band was used, that unused allowance is typically transferable. This means the second parent’s estate may benefit from a combined nil-rate band of up to £650,000 before the standard 40% rate applies. In our experience, families are often unaware that a formal claim must be made to transfer this allowance — it does not happen automatically — and the claim should be made when administering the second estate.

The Residence Nil-Rate Band: An Additional Allowance That Can Be Lost

Since 2017, an additional allowance known as the Residence Nil-Rate Band (RNRB) has been available where a residential property is passed to direct descendants such as children or grandchildren. The current RNRB stands at £175,000 per individual, meaning a couple could potentially shelter up to £1,000,000 in total across both allowances when the surviving parent dies. Like the standard nil-rate band, any unused RNRB from the first death is generally transferable to the surviving spouse’s estate.

However, the RNRB is subject to a taper for larger estates. Where the net estate of the second parent exceeds £2,000,000, the RNRB is reduced by £1 for every £2 above that threshold. An estate of £2,350,000, for example, may lose the RNRB entirely. In our experience, this taper catches families off guard, particularly where property values have risen substantially over a long marriage. Gifting strategies, trust arrangements, and careful asset restructuring may help bring an estate below this threshold, but these steps generally need to be taken well in advance and in consultation with a regulated professional.

It is also worth noting that the RNRB may not be available where the property has already been sold, for example if the surviving parent moved into residential care. There is a downsizing addition that may apply in some circumstances, but its availability depends on specific conditions being met. Full details are available from HMRC’s technical guidance on calculating the RNRB.

The Executor’s Role After the Second Parent Dies

When the second parent dies, the executor of their estate is responsible for valuing all assets, identifying any available reliefs and transferable allowances, and reporting to HMRC. In most cases, inheritance tax must be paid within six months of the end of the month in which the death occurred, and in many cases HMRC expects at least some payment before probate will be granted. The executor must submit an inheritance tax account using the appropriate HMRC forms, even where no tax is ultimately due, if the estate exceeds certain reporting thresholds. Delays in valuing property or locating the first spouse’s probate papers — which are needed to evidence the transferable nil-rate band claim — can create pressure at what is already a difficult time for families. Our team strongly encourages families to locate and store relevant estate documents together while both parents are still alive.

Common Questions About Inheritance Tax When a Second Parent Dies

Does a widow get her husband’s inheritance tax allowance?

In most cases, yes. Where a husband left his entire estate to his surviving wife and made no use of his nil-rate band, the unused allowance can typically be transferred and added to hers when she dies. This means the widow’s estate may benefit from a nil-rate band of up to £650,000 rather than the standard £325,000. The same principle applies to civil partners. A formal claim must be made when administering the widow’s estate, and supporting documents from the first death — including the grant of probate or letters of administration — will generally be required by HMRC.

How to avoid inheritance tax when second parent dies in the UK?

There is no single approach, and it is important to be cautious about any strategy described as a complete solution. That said, there are several well-established methods that may reduce the liability, including making use of the transferable nil-rate band and transferable RNRB, gifting assets during the surviving parent’s lifetime (subject to the seven-year rule), placing assets into certain types of trust, structuring property ownership as tenants in common, and making charitable gifts. In our experience, the most effective outcomes occur where planning is put in place several years before the second death, rather than in response to declining health. We would encourage you to seek guidance from a regulated estate planning professional at the earliest opportunity.

What is the inheritance tax rate when a parent dies in the UK?

Inheritance tax is charged at 40% on the value of the estate above the available threshold. Where the estate includes a residential property passing to direct descendants, the effective threshold may be higher due to the RNRB. A reduced rate of 36% may apply where at least 10% of the net estate is left to a qualifying charity. These rates apply to estates in England and Wales; inheritance tax is a reserved matter and the same rules generally apply across the UK, though there may be interactions with devolved property and land taxes in Scotland and Wales.

How do I avoid 40% inheritance tax in the UK?

Legally reducing exposure to the 40% rate typically involves a combination of using available allowances in full, making potentially exempt transfers through gifts made more than seven years before death, making use of business or agricultural property reliefs where applicable, and structuring assets efficiently during the surviving parent’s lifetime. Trusts can play a role in certain circumstances, though their tax treatment is complex and depends on the type of trust and timing of transfers. Our team can help families understand which strategies are likely to be relevant to their situation and refer them to a regulated adviser where specialist advice is needed.

How much tax would you pay on a £100,000 inheritance?

Whether any tax is payable on a £100,000 inheritance depends not on the amount received by the beneficiary, but on the total value of the deceased’s estate and what allowances are available. In the UK, inheritance tax is generally paid by the estate before assets are distributed, meaning beneficiaries typically receive their inheritance after any tax has already been settled. If the total estate falls within the available nil-rate band — which may be up to £325,000 for a single individual or higher where transferable allowances apply — no inheritance tax would ordinarily be due on any part of the estate, including a £100,000 legacy. If the estate exceeds the threshold, the 40% rate applies to the excess, not to each beneficiary’s share individually.