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How Does Inheritance Tax Work: Thresholds, Rules and Allowances

Imagine spending years building your savings, buying a family home and creating financial security for your loved ones, only to discover that part of your estate could be subject to tax after your death. Understanding Inheritance Tax (IHT) can help you protect your wealth, plan ahead and make informed decisions about what you leave behind.

Whether you own property, hold investments or want to pass money to your children, understanding the inheritance tax threshold, available allowances and latest HMRC rules is essential. In this guide, we explain how Inheritance Tax works in the UK, who may need to pay it and how careful planning can help manage your potential tax liability.

What Is Inheritance Tax?

Inheritance Tax is a tax that may be charged on a person's estate when they die. An estate generally includes property, savings, investments, personal possessions and certain other assets, after taking account of eligible debts and liabilities.

The executor or administrator is generally responsible for managing the estate, arranging the necessary tax reporting and ensuring any Inheritance Tax due is paid.

The standard Inheritance Tax rate is 40% on the taxable amount above the available tax-free allowances. A reduced rate of 36% may apply when the relevant charitable-giving conditions are satisfied.

Not every estate has to pay Inheritance Tax. The amount due depends on the estate's value, available allowances, exemptions, reliefs and the circumstances of the deceased.

For an overview of the rules, read the official GOV.UK guide to Inheritance Tax.

What Is the Inheritance Tax Threshold in the UK?

The inheritance tax threshold determines how much of an estate can potentially be passed on without paying Inheritance Tax.

For the 2026/27 tax year, the main allowances are:

  • Nil-rate band: £325,000 per person.
  • Residence nil-rate band: Up to £175,000 for eligible estates passing a qualifying home to direct descendants.
  • Combined potential allowance: Up to £500,000 for an individual who qualifies for both allowances.
  • Allowance for married couples or civil partners: Up to £1 million where both partners qualify for the full allowances and the relevant transferable allowances are available.

The residence nil-rate band begins reducing when the estate's value exceeds £2 million. It falls by £1 for every £2 above that threshold.

These thresholds are frozen until April 2031 under current rules. As property prices and savings increase, more estates could become liable to Inheritance Tax.

For the official figures, see HMRC's Inheritance Tax thresholds and interest rates.

Example: How the Inheritance Tax Threshold Works

Suppose an individual dies with an estate worth £600,000, including a qualifying home left to their children. They qualify for the full £325,000 nil-rate band and £175,000 residence nil-rate band.

Calculation

Amount

Total estate value

£600,000

Main nil-rate band

£325,000

Residence nil-rate band

£175,000

Total available allowances

£500,000

Taxable estate

£100,000

Inheritance Tax at 40%

£40,000

This simplified example assumes no debts, additional exemptions, lifetime gifts or other reliefs affect the calculation.

How Does Inheritance Tax Work for Married Couples?

Married couples and civil partners can benefit from important Inheritance Tax exemptions. Transfers between spouses or civil partners are generally exempt, subject to applicable conditions and exceptions.

Any unused proportion of the deceased partner's nil-rate band may also be transferable to the surviving partner's estate. The unused residence nil-rate band may be transferable too, where the relevant conditions are met.

For example, if the first partner dies and leaves their estate to their spouse, their main nil-rate band may remain unused. When the surviving partner dies, their estate may be able to claim the unused allowance in addition to their own.

Where both partners qualify for the full main and residence allowances, the combined tax-free allowance can potentially reach £1 million.

However, eligibility depends on factors such as asset ownership, the estate's value and the beneficiaries. Read the GOV.UK guidance on Inheritance Tax for further information about exemptions and transferable allowances.

What Are the Main Inheritance Tax Rules for Gifts?

Giving money or assets to family members during your lifetime can be part of an estate-planning strategy. However, not every gift is immediately exempt from Inheritance Tax.

Important gift allowances include:

Annual exemption: You can generally give away £3,000 in total each tax year without the gifts being included in your estate for Inheritance Tax purposes. Unused exemption can usually be carried forward for one tax year.

Small gifts: You can give up to £250 to any number of people each tax year, provided the conditions are met and another gift allowance is not used for the same person.

Wedding or civil partnership gifts: Specific exemptions apply, with limits depending on your relationship to the recipient.

Regular gifts from income: Certain regular gifts may be exempt if they come from surplus income, form part of your normal expenditure and do not affect your usual standard of living.

Charitable gifts: Qualifying gifts to registered charities are generally exempt.

Understanding the Seven-Year Rule

Some gifts made during your lifetime may become exempt if you survive for seven years after making them. These are commonly known as potentially exempt transfers.

If you die within seven years, the gifts may need to be considered when calculating Inheritance Tax. Taper relief can reduce the tax on certain gifts made between three and seven years before death, but it does not reduce the value of the gift itself.

For example, if you give your adult child £100,000 and die five years later, the gift may need to be assessed alongside your other gifts and available allowances. The final tax position depends on your individual circumstances.

Giving away an asset while continuing to benefit from it can also trigger separate rules. For instance, transferring your home to your child while continuing to live there rent-free may be treated as a gift with reservation of benefit.

Read GOV.UK's guidance on Inheritance Tax and gifts to understand the relevant exemptions and conditions.

What HMRC Inheritance Tax Changes Should You Know About?

Keeping up with HMRC inheritance tax changes is important, particularly if your estate includes a family home, business assets or pension savings.

Here are three important developments to consider:

Frozen thresholds: The main £325,000 allowance and £175,000 residence nil-rate band remain at their current levels until April 2031 under current rules.

Agricultural and business property relief: From 6 April 2026, the amount of qualifying agricultural and business property eligible for 100% relief is limited to a combined £2.5 million, with qualifying value above that limit generally receiving 50% relief. Specific eligibility and transfer rules apply.

HMRC pension Inheritance Tax changes: From 6 April 2027, most unused pension funds and pension death benefits are due to be included in the deceased person's estate for Inheritance Tax purposes, subject to applicable exceptions.

The pension changes are particularly important for individuals who have relied on pensions as part of their estate-planning strategy. The treatment of pension benefits will depend on the applicable legislation and the individual's circumstances.

For more information, read HMRC's official guidance on Inheritance Tax on pensions and Agricultural Relief and Business Relief.

How to Avoid Inheritance Tax Legally

Although it is not always possible to eliminate Inheritance Tax, careful planning can help reduce a potential liability. The objective is to use legitimate exemptions, reliefs and allowances rather than rely on assumptions about what is tax-free.

Consider these practical steps:

1. Make a will: A properly drafted will can help ensure your assets are distributed according to your wishes and support effective estate planning.

2. Use available gift allowances: Consider eligible gifts during your lifetime and maintain records of dates, amounts and recipients.

3. Review property arrangements: Check whether your estate qualifies for the residence nil-rate band and whether the home will pass to eligible direct descendants.

4. Understand spouse exemptions: Review asset ownership and whether unused allowances may be transferred.

5. Review pensions and investments: Consider how forthcoming pension rules and other changes could affect your estate.

6. Seek professional advice: An accountant or qualified tax adviser can help assess your circumstances and identify relevant exemptions and reliefs.

Avoid giving away assets without considering your future living costs, access to funds and potential implications for other taxes. Estate planning should protect your financial security as well as benefit your beneficiaries.

How PHS Associates Can Help

Understanding Inheritance Tax can feel complicated, particularly when your estate includes property, investments, pensions or lifetime gifts. Careful planning can help you understand your potential tax exposure and make informed decisions about your assets.

PHS Associates provides professional accounting and tax support to individuals and businesses across the UK. Our team can help you organise financial information, understand relevant tax obligations and identify issues that may require specialist estate-planning advice.

If you want to review your financial position and plan for the future, Book free consultation discusses your accounting and tax requirements.

Frequently Asked Questions

The standard Inheritance Tax threshold is £325,000 per person. Eligible estates may also qualify for a residence nil-rate band of up to £175,000 when a qualifying home passes to direct descendants, potentially providing a combined allowance of £500,000 per person.

The main Inheritance Tax allowances are frozen until April 2031. Changes to agricultural and business property relief took effect in April 2026, and most unused pension funds and pension death benefits are due to come within the scope of Inheritance Tax from 6 April 2027.

Not necessarily. Some gifts qualify for exemptions, while others may be considered for Inheritance Tax if you die within seven years of making them. The outcome depends on the gift's value, timing and applicable allowances.

You may be able to reduce your Inheritance Tax liability by using gift allowances, making qualifying charitable donations, reviewing your will and understanding available exemptions and transferable allowances. Professional advice can help you choose appropriate options.

From 6 April 2027, most unused pension funds and pension death benefits are expected to be included in the estate's value for Inheritance Tax purposes, subject to exceptions. The final tax position depends on the pension arrangements and the circumstances of the estate.

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