Inheritance tax: thresholds, rates and who pays

Inheritance tax of 40% is paid on what you leave to your heirs. Use our inheritance tax calculator, plus find out inheritance tax rates, and how it works
Josh WilsonSenior data journalist

What is inheritance tax?

If you plan to pass on assets or money after you die, your heirs could face a tax bill of up to 40% of your estate.

Your estate is defined as your property, savings and other assets after any debts and funeral expenses have been deducted.

You can reduce or avoid IHT in a number of ways. There's a tax-free allowance, and you can also give away a certain amount of your money during your lifetime, tax-free and without it counting towards your estate.

Be more money savvy

free newsletter

Get a firmer grip on your finances with the expert tips in our Money newsletter – it's free weekly.

This newsletter delivers free money-related content, along with other information about Which? Group products and services. Unsubscribe whenever you want. Your data will be processed in accordance with our Privacy policy

Video: How inheritance tax works

Our short video explains what makes up your estate, how married couples can pool their allowances, and how the main residence nil-rate band works.

Inheritance tax thresholds and rates 2025-26

Everyone in the 2025-26 tax year has a tax-free inheritance tax allowance of £325,000 - known as the nil-rate band. The allowance has remained the same since 2010-11. 

The standard inheritance tax rate is 40% of anything in your estate over the £325,000 threshold.

For example, if you leave behind an estate worth £500,000, the tax bill will be £70,000 (40% on £175,000 - the difference between £500,000 and £325,000).

If you're married or in a civil partnership, you may be able to leave more than this before paying tax.

And, since April 2017, you've been able to pay less inheritance tax when leaving property to a family member. For the 2025-26 tax year, this transferable allowance is £175,000. 

You can find out more in our guide to inheritance tax on property.

In the 2024 Autumn Budget, the Chancellor confirmed that inheritance tax allowances will be frozen until 2030.

  • Are you making a will? If you want support, you can make your will and have it reviewed by Which? Wills.

Are inherited pensions subject to inheritance tax?

Historically, pensions have not formed part of someone's estate for inheritance tax purposes, meaning that you could leave unspent pension pots to beneficiaries without them having to pay inheritance tax. 

However, it was announced in the 2024 Autumn Budget that unspent pension pots will form part of someone's estate for inheritance tax purposes from April 2027. 

Calculate your inheritance tax bill

Try our calculator to work out how much inheritance tax may be due on your estate.

Do spouses pay inheritance tax?

Married couples and civil partners are allowed to pass their possessions and assets to each other tax-free in most cases.

The surviving partner is allowed to use both tax-free allowances, providing the first spouse to die did not use up their full inheritance tax allowance.

In 2025-26, most married couples or civil partners can pass on up to £650,000, or £1m if your estate includes your home, effectively doubling the amount the surviving partner can leave behind tax-free without the need for special tax planning.

However, some people whose partner died before 12 November 1974 will inherit a reduced allowance, while those whose partner died before 22 March 1972 will be caught by a loophole which means they don't get a 'double allowance'.

What happens if I remarry?

If your partner passes away and you remarry, you can still inherit the unused IHT allowance of your original spouse.

However, if your new partner also passes away, you won't inherit their unused allowance if you have already inherited a full IHT allowance from your first partner - you're only allowed to benefit from a maximum of two full IHT allowances. 

Your new partner will however retain their own allowance, plus any they inherited from a previous partner. 

Because of this, if you've remarried, there are certain scenarios where it can make more sense from a tax perspective to leave parts of your estate to individuals other than your spouse.

Your essential probate checklist

Break down every stage of the probate process into manageable tasks with our free checklist.

Get the free checklist

Can spouses inherit Isas tax-free?

Any money held in an Isa forms part of your estate when you pass away, although your surviving spouse can still benefit from the extra tax protections these accounts offer.

Since 3 December 2014, bereaved spouses and civil partners have been allowed to re-invest cash and investments held in their partner's Isa, allowing them to take interest dividends and growth tax-free.

The allowance is called an Additional Permitted Subscription (APS). Be aware that not all Isa providers let people use it, so you'll need to check with your provider that they accept these extra deposits before transferring.

If not, you're free to open another one that does, even if you've used part of your Isa subscription in the current tax year.

Gifts and other ways to avoid inheritance tax

Some gifts are usually tax-free. These include gifts between spouses and civil partners, and gifts to charities.

Other gifts are potentially tax-free (known as potentially exempt transfers or PETs) depending on when they were made. Generally, as long as a gift is made more than seven years before your death to an individual - not to a business or a trust - you won't pay tax on it.

If you do die within these seven years, the tax payable on the gift may be reduced, depending on when the gift was made. You can find out more in our guide to inheritance tax planning and tax-free gifts.

There are other ways to avoid inheritance tax, too - including putting your life insurance policy under trust or having a deed of variation in your will.

Trusts can also be a useful way to manage your IHT bill, and keep an element of control over what happens to your assets when you pass away. Find out more in our guide to inheritance tax and trusts.

There are also other options like equity release and life insurance policies: we explain in our guide to avoiding inheritance tax.

Who pays the inheritance tax bill?

Inheritance tax due on money or possessions passed on when you die is usually paid from your estate.

Your estate is made up of everything you own, minus debts, such as your mortgage, and expenses such as funeral expenses.

Heirs must pay IHT by the end of the sixth month after you die. An inheritance tax reference number from HMRC is needed first, and should be applied for at least three weeks before a payment needs to be made.

However, if the tax is due on gifts you made during the last seven years before your death, the people who received the gifts must pay the tax in most circumstances.

If they can't or will not pay, the amount due then comes out of your estate.

To find out more about the legal process of dealing with the estate of someone who has died, check out our probate advice guides.

Do you need to report the value of the estate?

In certain circumstances, you won't need to report the value of the deceased's estate, as it will be counted as an 'excepted estate'.

According to government guidance, most estates are 'excepted'. However, the rules on this will depend on when they died, who they left their assets to, and whether any inheritance tax is due.

If the person died on or before 31 December 2021

An estate will usually be excepted if:

  • its value is below the inheritance tax threshold at the time the person died
  • the deceased left everything in their estate to a surviving spouse or civil partner who lives in the UK, or to a qualifying registered UK charity and the estate is worth less than £1m
  • the deceased had permanently been living outside of the UK when they died, and their UK assets have a value of less than £150,000.

If the person died on or after 1 January 2022

An estate will usually be excepted if:

  • its value is below the current inheritance tax threshold
  • the estate is worth £650,000 or less and any unused threshold is being transferred from a spouse or civil partner who died first
  • the deceased left everything in their estate to their surviving spouse or civil partner who lives in the UK, or to a qualifying registered UK charity and the estate is worth less than £3m
  • the deceased had permanently been living outside of the UK when they died, and their UK assets have a value of less than £150,000.

If an estate is counted as being excepted, you won't have to give full details of its value, providing it meets these three criteria:

  • it counts as an excepted estate
  • there's no inheritance tax to pay
  • no other reasons apply that would mean you have to send full details of the estate, even when no tax is due. More on this below.

Instances where you need to send full details of the estate, even if no inheritance tax is due, include:

  • if the deceased gave away more than £250,000 in the seven years before they died (or more than £150,000 if they died on or before 31 December 2021)
  • if they had foreign assets worth more than £100,000
  • if they gave gifts that they continued to benefit from in the seven years before they died.

You can see the full list on gov.uk.

You will still need to report the value of the estate if you're applying for probate – even if it's excepted.