Who Pays Inheritance Tax and When Is It Due

At Towerstone, we provide specialist Inheritance Tax accountancy services for families and executors. We have written this article to explain who pays and the deadlines involved, helping you make informed decisions.

From experience, inheritance tax causes more confusion than almost any other UK tax. People are unsure who is actually responsible for paying it, when HMRC expects the money, and what happens if there is not enough cash in the estate. In my opinion, this uncertainty is what makes inheritance tax feel so intimidating, rather than the tax itself.

I regularly speak to executors, beneficiaries, and families who are dealing with a bereavement and are suddenly faced with unfamiliar legal and tax obligations. Many assume the beneficiary pays the tax personally. Others believe HMRC waits until everything is sold. Both assumptions are usually wrong.

In this article, I am going to explain clearly and practically who pays inheritance tax in the UK, when it is due, how it is calculated, and what happens if payment is delayed. Everything is based on current UK rules and shaped by what I see in real estates when they are administered.

By the end, you should understand who HMRC looks to for payment, how the timelines work, and how families can avoid unnecessary penalties and stress.

What is inheritance tax in simple terms?

Inheritance tax is a tax charged on the value of a person’s estate when they die. The estate includes everything they owned or had an interest in at the date of death, including:

Property

Cash and savings

Investments

Personal possessions

Certain lifetime gifts

Inheritance tax is administered by HM Revenue and Customs, with guidance published on GOV.UK.

As things stand, inheritance tax is charged at 40 percent on the value of the estate above the available allowances. There are important exemptions and reliefs, but the core principle is simple. HMRC taxes the value that passes on death.

Who is responsible for paying inheritance tax?

This is the most important point to understand.

Inheritance tax is paid by the estate, not by the beneficiaries personally.

From experience, this distinction is often misunderstood. HMRC does not normally chase children, spouses, or other beneficiaries for inheritance tax in their own right. Instead, the legal responsibility sits with the personal representatives of the estate.

Personal representatives are:

Executors, if there is a valid will

Administrators, if there is no will

These individuals are responsible for:

Valuing the estate

Reporting the estate to HMRC

Calculating inheritance tax

Ensuring the tax is paid on time

In my opinion, this role carries far more responsibility than many people realise when they agree to act as executor.

Do beneficiaries ever pay inheritance tax themselves?

Usually no, but there are limited exceptions.

In most cases, inheritance tax is paid out of the estate before assets are distributed. Beneficiaries receive what is left after tax and expenses.

However, from experience, beneficiaries can become directly liable in certain situations, such as:

Where they receive a lifetime gift that becomes taxable because the giver dies within seven years and the estate cannot pay

Where assets are passed to them subject to a specific condition that they pay the tax

Where trust arrangements pass tax liability to the recipient

These situations are relatively uncommon, but they do exist. This is why understanding how gifts and trusts work is so important.

When does inheritance tax become due?

Inheritance tax does not become due immediately on death, but it does become due sooner than many people expect.

The general rule is:

Inheritance tax is due six months after the end of the month in which the person died

For example:

If someone dies on 10 January

The end of the month is 31 January

Inheritance tax is due by 31 July

From experience, this timeline catches many executors out. Probate can take much longer than six months, but HMRC still expects payment by the deadline.

What happens if inheritance tax is paid late?

If inheritance tax is not paid by the due date, HMRC may charge:

Interest on the unpaid tax

Penalties in certain circumstances

Interest runs from the due date until payment is made, regardless of whether probate has been granted.

In my opinion, one of the biggest executor mistakes is assuming HMRC will wait until everything is sorted. They will not.

How is inheritance tax paid if the estate has no cash?

This is one of the most stressful aspects of inheritance tax in practice.

Many estates are asset rich but cash poor, particularly where most of the value is tied up in property.

From experience, there are several ways inheritance tax can be paid:

Using cash held in the deceased’s bank accounts

Borrowing from beneficiaries

Taking out a short term executor loan

Paying by instalments on certain assets

Selling assets

HMRC allows inheritance tax on some assets, particularly property, to be paid by annual instalments over up to ten years. However, interest is still charged.

In my opinion, planning for liquidity is just as important as planning to reduce the tax itself.

Can probate be granted before inheritance tax is paid?

No, not in full.

HMRC requires confirmation that inheritance tax arrangements are in place before probate is granted. In practice, this usually means:

Inheritance tax is paid in full, or

The first instalment has been paid and agreed

From experience, this creates a circular problem for some estates. You need probate to access assets, but you need assets to pay the tax.

This is why early advice is so valuable.

Who calculates how much inheritance tax is due?

The responsibility for calculating inheritance tax sits with the personal representatives.

They must:

Identify all assets and liabilities

Value assets accurately

Identify gifts made in the seven years before death

Apply available allowances and reliefs

Submit the correct forms to HMRC

HMRC can and does challenge valuations, particularly for property and business assets.

In my opinion, this is an area where professional input often pays for itself.

What inheritance tax allowances apply?

Before tax is calculated, allowances are deducted.

The main allowances include:

The standard nil rate band of £325,000

The residence nil rate band of up to £175,000

Transferable allowances between spouses

These allowances reduce the value of the estate that is subject to tax.

From experience, many estates that appear taxable at first glance ultimately pay little or no inheritance tax once allowances are applied correctly.

What about spouse and civil partner exemptions?

Transfers between spouses and civil partners are completely exempt from inheritance tax.

This means:

No inheritance tax is due on the first death where assets pass to a spouse

Any unused allowances can usually be transferred to the survivor

In practice, inheritance tax is often only payable on the second death in a married couple.

In my opinion, this exemption is one of the most generous parts of the UK inheritance tax system.

Who pays inheritance tax when trusts are involved?

Trusts add complexity.

If assets are held in trust, inheritance tax responsibility depends on:

The type of trust

When it was created

Who benefits

From experience:

Trusts created on death usually pay inheritance tax as part of the estate

Lifetime trusts may have already paid inheritance tax

Ongoing trust charges are paid by trustees

Beneficiaries usually do not pay inheritance tax personally unless specific conditions apply.

Who pays inheritance tax on lifetime gifts?

Lifetime gifts are normally paid for by the estate if they become taxable.

If a gift was made within seven years of death and pushes the estate over the threshold, inheritance tax may be due.

From experience:

The estate pays the tax first

If the estate cannot pay, HMRC may pursue the recipient

This is why recipients of large gifts should understand the potential future risk.

When do beneficiaries actually receive their inheritance?

Beneficiaries only receive their inheritance after:

Inheritance tax is dealt with

Probate is granted

Estate debts and expenses are paid

From experience, this process often takes between six months and two years, sometimes longer for complex estates.

In my opinion, unrealistic expectations around timing cause many family disputes.

What happens if the executor does not pay inheritance tax?

Executors have legal responsibilities.

If an executor fails to pay inheritance tax correctly or on time, they may become personally liable.

This can happen if:

Assets are distributed before tax is paid

HMRC later raises an additional assessment

Records are poor or misleading

From experience, this is why executors must act cautiously and document decisions carefully.

Can inheritance tax be paid in advance?

Inheritance tax itself cannot be prepaid in advance of death, but planning can reduce what will be payable.

Common planning strategies include:

Lifetime gifting

Pension planning

Use of relief qualifying assets

Trust planning where appropriate

In my opinion, inheritance tax is best managed gradually, not rushed at the end.

Common misconceptions about who pays inheritance tax

Some of the most common misunderstandings I encounter include:

Beneficiaries always pay the tax

HMRC waits until probate is finished

The family home must be sold immediately

Executors have no personal risk

From experience, these myths cause unnecessary fear and poor decisions.

Practical advice from experience

If you are an executor or likely to be one, my practical advice is:

Understand your responsibilities early

Do not distribute assets too soon

Keep clear records

Seek advice on valuations and reliefs

Communicate clearly with beneficiaries

If you are planning your own estate, clarity now saves stress later.

Where this leaves you

So, who pays inheritance tax and when is it due?

Inheritance tax is paid by the estate, managed by the executors or administrators, and is usually due six months after the end of the month of death. Beneficiaries generally receive what remains after tax is settled, although there are limited exceptions.

From experience, the biggest inheritance tax problems are rarely caused by the amount of tax itself. They are caused by misunderstanding roles, missing deadlines, and poor communication at a difficult time.

In my professional opinion, understanding who pays inheritance tax and when it is due removes much of the fear. With clear information and realistic expectations, inheritance tax becomes a process to manage, not a crisis to endure.

If you would like to explore related Inheritance Tax guidance, you may find Can I transfer my home to my children to avoid Inheritance Tax and Can I use my spouse’s nil rate band useful. For broader inheritance tax guidance, visit our inheritance tax hub.