How Do I Value an Estate for Inheritance Tax?

At Towerstone, we provide specialist Inheritance Tax accountancy services for families and executors. We have written this article to explain what must be valued and how, helping you make informed decisions.

Valuing an estate for inheritance tax is one of those tasks that sounds straightforward until you actually have to do it. In my experience, this is where most families and executors start to feel overwhelmed. You are dealing with grief, paperwork, deadlines, and financial decisions all at once, often for the first time.

I have valued many estates over the years, from very simple ones through to complex estates involving property portfolios, businesses, trusts, and overseas assets. What I have learned is that the process is logical, but only if you understand what HMRC expects and why accuracy matters so much.

In this guide, I am going to explain exactly how to value an estate for inheritance tax in the UK, what needs to be included, how assets should be valued, who is responsible, and where people most often go wrong. I will also share practical tips from experience that can save time, stress, and in some cases tax.

What Does Valuing an Estate Actually Mean?

Valuing an estate for inheritance tax means working out the total value of everything a person owned at the date of their death, minus any allowable liabilities.

This value is used to determine:

Whether inheritance tax is due

How much inheritance tax is payable

Which reliefs and allowances apply

Whether probate can be granted

The valuation is not about what assets are worth today or what they eventually sell for. It is about their open market value on the exact date of death.

This distinction is critical and often misunderstood.

Who Is Responsible for Valuing the Estate?

Responsibility usually falls to the executor named in the will or the administrator if there is no will.

Their duties include:

Identifying all assets and liabilities

Obtaining accurate valuations

Completing inheritance tax forms

Submitting information to HMRC

Paying inheritance tax on time

From experience, many executors underestimate how much judgement is involved. This is not just a box-ticking exercise.

Guidance on inheritance tax valuation is provided by HM Revenue & Customs and published via GOV.UK, but applying that guidance in real life takes care.

When Is the Estate Valued?

All assets must be valued as at the date of death.

Not the date probate is applied for
Not the date assets are sold
Not the date beneficiaries receive anything

The date of death valuation underpins everything.

From experience, this is where people often get caught out, especially in fast moving property or investment markets.

What Assets Must Be Included in the Estate?

The estate includes everything the person owned or had an interest in at death, whether solely or jointly.

This usually includes:

Property

Bank accounts and savings

Investments

Pensions in certain cases

Personal possessions

Business interests

Life insurance in some situations

Overseas assets

Money owed to the deceased

If it had value and belonged to them, it should be considered.

Valuing Property for Inheritance Tax

Property is usually the largest asset and the one HMRC scrutinises most closely.

The value used must be the open market value at the date of death. This means the price the property might reasonably be expected to sell for on the open market at that time.

In practice, this usually involves:

Obtaining one or more estate agent valuations

Considering comparable local sales

Adjusting for condition and location

Being realistic rather than optimistic

In my opinion, under-valuing property is one of the biggest risks executors take. HMRC has access to Land Registry data and can challenge valuations years later.

For higher value or complex properties, I often recommend a RICS qualified surveyor valuation.

Jointly Owned Property

How a property is owned affects how it is valued for inheritance tax.

If owned as joint tenants:

The deceased’s share usually passes automatically to the survivor

The deceased’s share still forms part of the estate for inheritance tax

If owned as tenants in common:

Only the deceased’s share is included

That share must be valued separately

From experience, valuing a partial share can be tricky. HMRC may expect a discount to reflect the lack of control and marketability.

Valuing Bank Accounts and Cash

Cash assets are usually the simplest to value.

These include:

Current accounts

Savings accounts

ISAs

Cash held at home

The value is the balance at the date of death, not when the bank eventually releases funds.

Banks usually provide date of death statements on request.

Valuing Investments

Investments must be valued at their market value at the date of death.

This includes:

Shares

Unit trusts

OEICs

Investment bonds

Premium Bonds

For listed shares, HMRC accepts a specific valuation method based on the quarter-up value, which averages the highest and lowest quoted prices on the date of death.

From experience, investment platforms can provide date of death valuations, but you should always check they align with HMRC methodology.

Valuing Pensions

Most pensions do not form part of the estate for inheritance tax because they sit outside probate.

However, pensions may need to be reported for information purposes, and some older or unusual pension arrangements can fall into the estate.

In my experience, this is an area where people either include too much or miss key details. Always confirm with the provider.

Valuing Personal Possessions

Personal possessions include:

Cars

Jewellery

Artwork

Antiques

Furniture

Collectables

HMRC expects realistic second-hand values, not replacement costs or sentimental values.

For most everyday items, a reasonable estimate is acceptable.

For high value items, professional valuations are advisable.

From experience, people often overvalue personal items emotionally or undervalue them to avoid tax. Neither approach is helpful.

Valuing Business Interests

Business interests can be complex and are frequently challenged by HMRC.

These may include:

Shares in private companies

Partnerships

Sole trader businesses

Valuation methods may involve:

Net asset values

Earnings multiples

Market comparisons

Business relief may apply, but valuation still matters because relief is applied to the value.

In my opinion, business valuations should almost always involve professional advice.

Valuing Debts Owed to the Deceased

If someone owed money to the deceased, this is an asset of the estate.

Examples include:

Personal loans

Director’s loan accounts

Outstanding invoices

The value included should reflect what is realistically recoverable.

What Liabilities Can Be Deducted?

Once assets are valued, allowable liabilities can be deducted.

These usually include:

Mortgages

Loans

Credit cards

Utility bills

Funeral expenses

Outstanding taxes

Liabilities must exist at the date of death to be deductible.

From experience, funeral costs are often overlooked initially but are deductible for inheritance tax.

Gifts and Their Impact on Valuation

Lifetime gifts do not form part of the estate valuation itself, but gifts made in the seven years before death must be reported and can affect inheritance tax calculations.

The executor must gather details of:

Dates

Values

Recipients

Applicable exemptions

This information sits alongside the estate valuation rather than within it.

How HMRC Reviews Estate Valuations

HMRC may review estate valuations as part of routine checks or targeted enquiries.

They often focus on:

Property values

Business interests

Valuable personal items

Missing assets

Undeclared gifts

From experience, HMRC is less concerned with honest judgement calls than with inconsistencies or lack of evidence.

Good records matter.

Common Valuation Mistakes I See

The most common issues I encounter include:

Using sale prices instead of date of death values

Under-valuing property

Forgetting joint assets

Missing overseas assets

Including pensions incorrectly

Failing to deduct allowable liabilities

Relying on guesswork without evidence

These mistakes cause delays, stress, and sometimes penalties.

Practical Tips From Experience

Based on years of doing this work, my advice is:

Start early and gather information methodically

Keep copies of all valuations and statements

Be realistic rather than optimistic

Use professionals where values are material

Communicate with beneficiaries early

Ask questions if unsure rather than guessing

In my opinion, the goal is not to minimise values at all costs but to arrive at defensible figures.

What Happens After the Estate Is Valued?

Once the estate is valued:

Inheritance tax forms are completed

Tax is calculated

Payment arrangements are made

Probate is applied for

Assets are eventually distributed

If assets sell for more or less than their probate values later, reliefs or additional tax may apply, but that does not change the original valuation requirement.

My Honest View From Experience

Valuing an estate is one of the most important responsibilities an executor has.

In my opinion, accuracy and transparency matter far more than aggressive tax positioning. HMRC has time, data, and powers to revisit valuations long after the estate feels finished.

From experience, the smoothest estates are those where valuations are sensible, well documented, and explained clearly.

Where this leaves you

Valuing an estate for inheritance tax is not just about numbers. It is about judgement, evidence, and understanding how HMRC looks at the world.

If you approach the process methodically, keep good records, and seek advice where needed, it is entirely manageable.

From experience, the stress comes not from the rules themselves but from uncertainty and delay. Clarity early on makes everything that follows far easier, for executors and families alike.

If you would like to explore related Inheritance Tax guidance, you may find How do life insurance policies affect Inheritance Tax and How do trusts help reduce Inheritance Tax useful. For broader inheritance tax guidance, visit our inheritance tax hub.