What is Inheritance Tax?

At Towerstone, we provide specialist Inheritance Tax accountancy services for families and executors. We have written this article to explain what Inheritance Tax is and when it applies, helping you make informed decisions.

Inheritance tax is one of those subjects that almost everyone has heard of but very few people truly understand. In my experience as a chartered accountant, it is also one of the most emotionally charged areas of tax. People are not just talking about money. They are talking about family, fairness, hard work, and what they want to leave behind.

I have lost count of how many times a client has said to me, “I thought inheritance tax only applied to the very wealthy,” or “I assumed my family would not have to worry about this.” From experience, that assumption is one of the biggest risks people take when it comes to estate planning in the UK.

In this article, I am going to explain inheritance tax clearly and honestly. I will cover what it is, when it applies, how much it can cost, and most importantly what can be done about it. I will also share practical insight from working with real families and estates rather than just repeating technical rules.

By the end, you should understand how inheritance tax works, whether it might affect your estate, and why early planning can make a life changing difference for your family.

What Is Inheritance Tax?

Inheritance tax, often shortened to IHT, is a tax charged on a person’s estate when they die. An estate includes everything someone owns at the date of death, not just cash in the bank.

This typically covers:

• Property such as houses and flats

• Savings and investments

• Pensions in some circumstances

• Businesses and shares

• Cars, jewellery, artwork, and personal possessions

• Gifts made during life in certain cases

In simple terms, if the total value of everything you own when you die exceeds certain allowances, inheritance tax may be due.

From experience, many people assume inheritance tax is about income or annual earnings. It is not. It is a tax on accumulated wealth, and in the UK that often means property.

Who Sets the Rules on Inheritance Tax?

The rules on inheritance tax are set by the UK government and administered by HM Revenue & Customs, commonly known as HMRC. The guidance is published through GOV.UK, but in my opinion the official explanations can feel dense and disconnected from real life.

That is why professional advice matters. The rules are technical, but the consequences are personal.

How Much Is Inheritance Tax?

The standard inheritance tax rate in the UK is 40 percent. This is applied to the value of the estate above the available tax free allowances.

That 40 percent figure is the one that shocks people. I often see clients physically react when they realise nearly half of the excess value could go to tax if no planning is done.

However, the key point is this: not every estate pays inheritance tax, and not every pound is taxed at 40 percent.

The real outcome depends on allowances, reliefs, exemptions, and planning decisions made during life.

The Nil Rate Band Explained

The nil rate band is the basic inheritance tax allowance. It is the amount of an estate that can be passed on tax free.

As things stand, the nil rate band is £325,000 per person.

If the value of your estate is below this figure, there is no inheritance tax to pay.

If it exceeds this figure, inheritance tax may apply to the amount above it.

From experience, many people know the £325,000 number but misunderstand how it works. It is not an automatic tax bill trigger. It is simply the point at which tax starts to be calculated.

The Residence Nil Rate Band

One of the most important developments in inheritance tax in recent years is the residence nil rate band.

This is an additional allowance that applies when you leave your main home to direct descendants such as:

• Children

• Stepchildren

• Adopted children

• Grandchildren

The residence nil rate band is currently up to £175,000 per person.

When combined with the standard nil rate band, this means an individual could potentially pass on up to £500,000 tax free if the conditions are met.

In my opinion, this allowance has helped many families, but it has also introduced complexity. The rules are strict, and the allowance can be lost entirely if the estate is too large.

How Married Couples and Civil Partners Are Treated

Inheritance tax works very differently for married couples and civil partners.

Assets passing between spouses or civil partners on death are generally exempt from inheritance tax, regardless of value.

This means that when the first partner dies, inheritance tax is often not an immediate issue.

However, this does not mean the tax disappears. In many cases, it is simply deferred until the second death.

One important benefit is that unused allowances can usually be transferred to the surviving partner. From experience, this can double the available tax free threshold.

In practical terms, a married couple could potentially pass on:

• £650,000 using two standard nil rate bands

• Up to £1 million if both residence nil rate bands apply

This is one reason why estate planning for couples is so important. The structure of wills can make or break this outcome.

What Counts as Your Estate?

Understanding what is included in your estate is essential.

Your estate usually includes:

• Property owned outright or jointly

• Bank accounts and savings

• Investments such as ISAs and shares

• Valuable personal items

• Business interests

• Certain pension benefits

From experience, people often forget about life assurance policies written in their own name or business shares that have increased in value.

It is also important to understand how jointly owned assets are treated. Joint tenancy and tenancy in common can have very different inheritance tax consequences.

How Gifts Affect Inheritance Tax

One of the most misunderstood areas of inheritance tax is gifting.

Many people believe that giving money away automatically avoids inheritance tax. That is not always true.

The key concept here is the seven year rule.

If you make a gift and survive for seven years after making it, that gift usually falls outside your estate for inheritance tax purposes.

If you die within seven years, some or all of the gift may be brought back into the calculation.

From experience, gifting can be extremely effective, but only when done with full awareness of the risks.

Potentially Exempt Transfers and Taper Relief

Most lifetime gifts to individuals are classed as potentially exempt transfers.

If you survive seven years, the gift becomes fully exempt.

If you die within seven years, inheritance tax may apply, but taper relief can reduce the tax depending on how long you survived after making the gift.

It is important to understand that taper relief reduces the tax, not the value of the gift.

This is a subtle point that is often misunderstood.

Gifts That Are Immediately Exempt

Some gifts are exempt from inheritance tax straight away.

These include:

• The annual exemption

• Small gifts allowance

• Gifts in consideration of marriage or civil partnership

• Regular gifts out of surplus income

From experience, the regular gifts out of income exemption is one of the most powerful and underused tools in inheritance tax planning. It requires careful record keeping, but it can allow significant wealth to be passed on tax free.

Business Relief and Agricultural Relief

Inheritance tax does not apply equally to all assets.

Business relief and agricultural relief can reduce the taxable value of certain assets by up to 100 percent.

Business relief may apply to:

• Trading businesses

• Shares in unlisted companies

• Certain partnership interests

Agricultural relief applies to qualifying farmland and buildings.

In my opinion, these reliefs are essential to prevent family businesses and farms from being broken up to pay tax. However, the rules are technical, and eligibility must be reviewed carefully.

Pensions and Inheritance Tax

Pensions sit in a strange position when it comes to inheritance tax.

In many cases, pensions do not form part of the estate for inheritance tax purposes. This can make them a very effective planning tool.

However, the tax treatment depends on:

• The type of pension

• Whether benefits have been drawn

• The age at death

• The way benefits are paid to beneficiaries

From experience, I see many people focusing on using pensions for retirement income without realising their potential role in estate planning.

When Is Inheritance Tax Paid?

Inheritance tax is usually due within six months of the end of the month in which the death occurred.

This often comes as a shock to families, particularly when most of the estate value is tied up in property.

Interest starts to accrue if the tax is not paid on time.

In practical terms, this can create cash flow problems, and in some cases assets must be sold to fund the tax bill.

How Inheritance Tax Is Calculated in Practice

The calculation process involves several steps.

First, the total value of the estate is calculated.

Then allowable debts and liabilities are deducted.

Next, exemptions and reliefs are applied.

Finally, the available nil rate bands are deducted, and tax is calculated on the balance.

From experience, even relatively straightforward estates can involve dozens of valuation and judgement calls.

Common Inheritance Tax Myths

Over the years, I have heard many myths about inheritance tax.

Some of the most common include:

• Inheritance tax only affects the super rich

• Everything left to children is tax free

• Giving money away always avoids tax

• Writing a will removes inheritance tax

In my opinion, these misunderstandings cause more damage than the tax itself because they delay planning.

The Role of a Will in Inheritance Tax Planning

A will does not eliminate inheritance tax, but it is one of the most important tools in managing it.

Without a will, assets are distributed under intestacy rules, which may not align with tax efficiency or personal wishes.

From experience, poorly drafted wills often create inheritance tax problems that could have been avoided with proper advice.

Trusts and Inheritance Tax

Trusts can be powerful but complex tools.

They can help:

• Control how assets are passed on

• Protect beneficiaries

• Manage inheritance tax exposure

However, trusts come with their own tax regimes and reporting obligations.

In my opinion, trusts should only be used where there is a clear objective and professional guidance.

Life Insurance and Inheritance Tax

Life insurance is often used to provide funds to pay an inheritance tax bill.

When written in trust, the proceeds can be paid outside the estate, providing liquidity at the right time.

From experience, this can be a practical solution for estates that are property rich but cash poor.

Inheritance Tax and the Family Home

The family home is the single biggest driver of inheritance tax in the UK.

Rising property prices have pulled many ordinary families into the inheritance tax net.

In my opinion, this is why inheritance tax feels so unfair to many people. It is often triggered by asset inflation rather than wealth planning.

Planning Early and Reviewing Regularly

Inheritance tax planning is not a one off exercise.

The rules change, asset values change, and family circumstances change.

From experience, the best outcomes come from regular reviews rather than last minute decisions.

Is Inheritance Tax Avoidable?

Inheritance tax is not illegal to plan around, but it is illegal to evade.

There is a clear difference between sensible planning and aggressive avoidance.

In my opinion, good inheritance tax planning is about balance, fairness, and clarity rather than loopholes.

Where this leaves you on Inheritance Tax

Inheritance tax is one of the most complex and emotionally charged taxes in the UK.

From experience, the families who suffer most are not those with the largest estates, but those who assumed it would never affect them.

With early advice, clear records, and thoughtful planning, inheritance tax can often be reduced significantly and sometimes avoided altogether.

If there is one takeaway from this article, it is this: inheritance tax is not just about death. It is about decisions made during life.

If you would like to explore related Inheritance Tax guidance, you may find what is the inheritance tax threshold and when do you pay inheritance tax useful. For broader inheritance tax guidance, visit our inheritance tax hub.