Understanding Inheritance Tax and Probate

Inheritance tax and probate are two separate things that often come up together. Probate is the legal process of dealing with someone’s estate after they die; inheritance tax is a charge that may be payable on what that estate is worth. Getting to grips with how the two interact is the key to avoiding delay, unnecessary tax, and a great deal of family stress.

People often use “probate” and “inheritance tax” almost interchangeably, as if they were one bleak bundle. They are not. You can need probate with no tax to pay. Understanding what applies to you changes the decisions you make now, not just the paperwork your family faces later.

I find it helps to separate the two questions from the outset. First: Does the person (or people) who has the legal authority to deal with the estate need to collect in and administer assets? That is probate. Second: Does the estate owe anything to HMRC, and if so, how much and when? That is inheritance tax. Almost everything else follows from those two.

What is the difference between probate and inheritance tax?

Probate is the legal authority to administer someone’s estate, while inheritance tax is a tax on the value of that estate. Probate is about permission and process; inheritance tax is about money owed to HMRC. The two overlap because tax usually has to be reported, and often paid, before a grant of probate is issued.

Probate, more precisely a grant of probate where there is a will, or letters of administration where there is not, is the document that proves someone has the right to deal with the deceased’s assets. Banks, pension providers and the Land Registry generally want to see it before they will release funds or transfer property.

Inheritance tax, by contrast, is concerned only with value. It asks what the estate was worth at the date of death, subtracts the available allowances and exemptions, and applies a rate to whatever is left. A modest estate may need probate but owe no tax. A larger estate may owe substantial tax and still need probate to unlock the assets. The processes run alongside each other, which is why they so often get muddled.

How much is inheritance tax, and who actually pays it?

Inheritance tax is generally charged at 40% on the value of an estate above the available allowances, and it is paid by the estate itself rather than by individual beneficiaries. In most cases, the executors settle the bill from estate funds before anything is distributed, so beneficiaries receive their share after tax, not before.

The starting point for available allowances is the nil-rate band of £325,000, the slice of every estate taxed at 0%. On top of that potentially sits the residence nil-rate band of up to £175,000. This is available where a home passes to direct descendants such as children, stepchildren or grandchildren. Together, these can shelter up to £500,000 for one person as long as the qualifying criteria are met.

There is an important spousal dimension. Anything passing to a spouse or civil partner is generally exempt from inheritance tax, and any unused nil-rate band and residence nil-rate band can typically be transferred to the survivor. In practice, this means a married couple or civil partners can often pass on up to £1 million between them before tax bites, though the residence element tapers away for larger estates worth more than £2 million.

A point worth stressing, because it causes real confusion: the tax is the estate’s liability, not the beneficiary’s. Most people do not personally pay tax on an inheritance they receive. The executors calculate, report, and pay it, then divide what remains.

When does inheritance tax have to be paid during probate?

Inheritance tax is usually due by the end of the sixth month after the person died, and much of it often has to be paid before the grant of probate is issued. That timing creates a well-known chicken-and-egg problem, because executors frequently need the grant to access the funds required to pay the very tax that stands between them and the grant.

There are ways through this. Under the “direct payment scheme”, banks will often release money straight to HMRC from the deceased’s accounts. Tax on property and certain other assets can sometimes be paid in ten annual instalments, which eases the pressure where the estate is asset-rich but cash-poor. Interest, however, runs on late or instalment payments, so this is a matter of managing cost, not avoiding it.

This is exactly where planning ahead pays off. A life policy written in trust, for example, sits outside the estate and pays out quickly, giving executors ready cash for the tax bill. Without something like that, families occasionally need to borrow to pay HMRC with money they cannot yet access, adding stress to what is already a difficult time.

Do you always need probate, and is tax always due?

You do not always need probate, and inheritance tax is due only on a minority of estates. Whether probate is required depends on what the person owned and how it was held, while whether tax is payable depends on the estate’s value against the available allowances. Plenty of estates need one without the other.

Probate can often be avoided where assets are modest or jointly held. Property owned as “joint tenants” passes automatically to the surviving owner, and many banks will release smaller balances, sometimes up to around £50,000, on sight of a death certificate alone. Where the estate is larger, or includes a solely owned property or significant investments, a grant is almost always required.

On the tax side, the large majority of estates pay nothing, precisely because they fall below the thresholds or pass to an exempt spouse. That said, frozen allowances are quietly changing the picture. The nil-rate bands are fixed until April 2030, so as house prices and savings rise, more families are being drawn into paying inheritance tax for the first time, often to their surprise.

One development on the horizon is worth flagging. From April 2027, unused pension funds are expected to fall within the scope of inheritance tax as well, having long sat outside it. Pensions have been a mainstay of estate planning for years, so this is a meaningful shift and a good prompt to revisit arrangements made under the old rules.

How can you reduce inheritance tax and make probate smoother?

You can reduce inheritance tax and simplify probate through the same set of habits: a clear, current will, sensible lifetime gifting, and good record-keeping. The goal is to shrink what is taxable while leaving your executors a straightforward, well-documented estate to administer.

A few measures tend to do the heavy lifting:

• Make and maintain a Will. It removes uncertainty, names your executors, and lets you make full use of the residence nil-rate band by leaving your home to direct descendants in a way that captures the allowance.
• Use lifetime gifts. Gifts generally fall outside your estate if you survive seven years, and each person has a £3,000 annual gifting allowance, plus smaller exemptions, that renew every year.
• Consider gifts out of surplus income. Regular gifts from genuinely spare income, not capital, can be immediately exempt if properly evidenced, so keep records.
• Look at trusts and charitable giving. Leaving at least 10% of the net estate to charity can reduce the inheritance tax rate on the rest from 40% to 36%.
• Keep an asset list. A single, current record of accounts, policies, property and digital assets saves executors months of detective work.

None of this needs to be done in one sitting, and much of it benefits from advice tailored to your specific circumstances, because the reliefs interact in ways that are easy to trip over.

To end where we began, but with a slightly sharper point: the families who cope best are rarely the ones who paid the least tax. They are the ones for whom probate held no nasty surprises, because someone had taken the time to prepare. Reducing the tax matters, but what your executors will actually remember is a clear process.

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