For many homeowners, property is by far the largest asset in their estate. As house prices have increased and inheritance tax (IHT) thresholds have remained frozen, more families are finding that a greater proportion of their estate could be exposed to IHT when wealth is passed on to the next generation.
The standard nil-rate band remains £325,000 per person, while the residence nil-rate band can provide an additional allowance of up to £175,000 when a qualifying home passes to direct descendants. Although these thresholds provide valuable relief, they are frozen until April 2031, meaning that rising property values alone can increase an estate's potential IHT liability over time.
For homeowners, understanding how IHT applies to property is increasingly important. The right planning can help families make full use of available allowances, avoid common and costly mistakes, and ensure that more of their wealth reaches the people they intend to benefit.
There is no single solution. Depending on your circumstances, options may include structuring a will to maximise available allowances, gifting property or cash during your lifetime, making use of downsizing provisions, charitable giving, or, in some cases, releasing equity from a property and gifting funds to family members. Each approach comes with its own rules, tax implications and practical considerations.
At Hamptons, we help homeowners establish one of the most important foundations of any inheritance tax planning discussion: an accurate understanding of what their property is worth in the current market. With more than 80 branches across London and the South of England, our valuations provide a realistic view of a property's market value, helping homeowners have more informed conversations with solicitors, tax advisers and financial planners. While inheritance tax planning itself requires specialist professional advice, understanding the value of your home is often the first step.
This guide explains how inheritance tax applies to residential property, the allowances available to homeowners, and the options that may help reduce the inheritance tax exposure of an estate.
Key insights
- The standard nil-rate band is £325,000 per person, while the residence nil-rate band is worth up to £175,000 when a qualifying home passes to direct descendants.
- A married couple or civil partnership can potentially pass on up to £1 million free from inheritance tax, including their home.
- The residence nil-rate band reduces by £1 for every £2 that an estate exceeds £2 million, disappearing entirely at around £2.35 million.
- Both inheritance tax thresholds are frozen until April 2031.
- Property gifted during your lifetime is only outside your estate for inheritance tax purposes if you survive seven years and stop benefiting from the asset entirely.
- Cash gifted from funds released through equity release may also fall outside your estate after seven years, subject to the relevant inheritance tax rules and professional advice.
How inheritance tax works on property
Inheritance tax is usually charged at 40% on the value of an estate above the available tax-free allowances. For property owners, the home is valued at its open-market value on the date of death, and any inheritance tax due is paid by the estate before assets are distributed to beneficiaries.
When calculating inheritance tax, HMRC looks at the value of the entire estate, not just the property. This can include:
- Your home and any other property interests
- Savings and bank accounts
- Investments and shares
- Life insurance policies not written in trust
- Vehicles and personal possessions
- Business interests
- Certain gifts made within the previous seven years
For many families, the main residence represents the largest proportion of the estate's value. As a result, an accurate property valuation is often central to understanding whether inheritance tax may be due and how much exposure exists.
The property must be assessed at its open-market value as at the date of death, meaning the price it could reasonably have achieved if sold on the open market at that time. This is one reason why obtaining a professional valuation is so important, particularly where an estate is close to an inheritance tax threshold.
Importantly, inheritance tax is paid by the estate rather than by the people inheriting the assets. However, if a large proportion of the estate's value is tied up in property and there are insufficient liquid assets available, executors may be forced to sell the home to meet the tax liability.
Inheritance tax is generally due within six months of the end of the month of death. Interest can accrue on unpaid tax after that point, which can add pressure where a property sale is needed to raise funds.
There is one notable exception to the standard 40% rate. Where 10% or more of the net estate is left to charity, the inheritance tax rate on the taxable portion of the estate may reduce to 36%.
Before considering any inheritance tax planning strategies, it is worth understanding the current value of your property and how it contributes to your overall estate.
Get an expert valuation to help understand where your estate may currently sit in relation to inheritance tax thresholds.
The two allowances every homeowner should understand
Every individual has a £325,000 nil-rate band, plus a residence nil-rate band of up to £175,000 when a qualifying home passes to direct descendants. Together, these allowances can allow an individual to pass on up to £500,000 free from inheritance tax, or up to £1 million for a married couple or civil partnership where both sets of allowances are available.
The nil-rate band (£325,000)
The nil-rate band is the standard inheritance tax allowance available to every individual. It applies to the value of the entire estate, including property, savings, investments and other assets.
Inheritance tax is generally only charged on the portion of an estate that exceeds this threshold, after any available reliefs and exemptions have been taken into account.
The nil-rate band is currently £325,000 per person and is frozen at this level until April 2031.
Where a married person or civil partner dies and does not use all of their nil-rate band, the unused portion can usually be transferred to their surviving spouse or civil partner. This allows the allowance to be preserved for use on the second death, potentially doubling the amount that can be passed on before inheritance tax becomes payable.
The residence nil-rate band (£175,000)
The residence nil-rate band is an additional inheritance tax allowance designed specifically for homeowners.
It applies when a qualifying main residence, or a share of one, is left to direct descendants, including:
- Children
- Grandchildren
- Stepchildren
- Adopted children
- Foster children
- Their lineal descendants
The allowance is worth up to £175,000 per person and sits on top of the standard nil-rate band.
Unlike the nil-rate band, the residence nil-rate band is linked to the passing of a home. If the property is left to someone who is not a direct descendant, the allowance is generally unavailable.
As with the standard nil-rate band, any unused residence nil-rate band can normally be transferred to a surviving spouse or civil partner.
Combining allowances as a married couple
For many families, the most valuable inheritance tax planning opportunity comes from combining both spouses' or civil partners' allowances.
Where the available allowances are fully preserved and a qualifying home ultimately passes to direct descendants, a married couple or civil partnership can potentially pass on:
- £325,000 nil-rate band (first spouse)
- £325,000 nil-rate band (second spouse)
- £175,000 residence nil-rate band (first spouse)
- £175,000 residence nil-rate band (second spouse)
This creates a combined inheritance tax-free threshold of up to £1 million.
While the principle is straightforward, the practical application often depends on the structure of a will and the family's circumstances. Second marriages, blended families, trusts and previous inheritance arrangements can all affect the position.
For that reason, homeowners should seek legal advice to ensure their wills preserve and maximise the available allowances.
The £2 million taper trap
One of the most important inheritance tax rules for homeowners in London and the South of England is the residence nil-rate band taper.
Once an estate exceeds £2 million, the residence nil-rate band begins to reduce by £1 for every £2 above the threshold.
This means that higher-value estates gradually lose part of the allowance as their total value increases. At around £2.35 million, the residence nil-rate band is eliminated completely.
Many homeowners assume they will automatically qualify for the additional £175,000 allowance, only to discover that their estate's value has pushed them into the taper zone.
Property owners with estates approaching or exceeding £2 million should pay particular attention to accurate valuations and professional estate planning advice. Small changes in value can have a significant effect on the availability of the residence nil-rate band and the eventual inheritance tax bill.
Gifting property during your lifetime: the seven-year rule
Gifting property to family during your lifetime can remove its value from your estate for inheritance tax purposes, but only if you survive seven years from the date of the gift and stop benefiting from the property entirely. If those conditions are not met, some or all of the property's value may still be included in your estate when inheritance tax is calculated.
In most cases, a lifetime gift of property is treated as a potentially exempt transfer (PET).
If you survive for seven years after making the gift, its value generally falls outside your estate for inheritance tax purposes. However, if you die within seven years, the gift is brought back into the inheritance tax calculation.
This is where the seven-year rule gets its name, but the reality is slightly more nuanced than many homeowners realise.
What happens if you die within seven years?
If death occurs within seven years of making the gift, HMRC assesses the value of the gift alongside the rest of the estate.
Depending on the timing, the gift may use up some or all of the available nil-rate band before inheritance tax is calculated on the remaining estate.
Many people assume that inheritance tax gradually disappears over seven years. In practice, this is only partly true.
Understanding taper relief
Where a gift exceeds the available nil-rate band and the donor dies between three and seven years after making it, taper relief may reduce the rate of inheritance tax payable on that gift.
Importantly, taper relief does not reduce the value of the gift. It only reduces the tax due on the portion of the gift that exceeds the available nil-rate band.
The rates are:
| Years between gift and death |
Effective IHT rate |
| 0-3 years |
40% |
| 3-4 years |
32% |
| 4-5 years |
24% |
| 5-6 years |
16% |
| 6-7 years |
8% |
| 7+ years |
0% |
This distinction is frequently misunderstood and can lead to unrealistic expectations about the tax savings available from gifting.
When does the seven-year clock start?
The seven-year period starts from the date the gift is legally completed.
For property, this is generally the point at which ownership is formally transferred, not when discussions begin or when a decision is made within the family.
Accurate records are essential. Executors may need to demonstrate the date of the transfer years later when administering an estate.
Don't overlook capital gains tax
Inheritance tax is only one part of the picture.
While gifting property can reduce an eventual inheritance tax liability, it may trigger an immediate capital gains tax (CGT) liability for the donor. This is particularly relevant for:
- Buy-to-let properties
- Holiday homes
- Investment properties
- Second homes
In many cases, the property is treated as though it had been sold at market value, even when no money changes hands.
For that reason, any proposed property gift should be reviewed by a tax adviser before proceeding. Reducing inheritance tax today may create a capital gains tax cost that outweighs the potential benefit.
Which properties are most suitable for gifting?
In practical terms, gifting tends to work best where the donor is genuinely giving up ownership and use of the property.
This often makes:
- Buy-to-let properties
- Investment properties
- Second homes
more straightforward candidates for gifting than a main residence.
For homeowners who intend to continue living in their home, a different set of rules applies. Simply transferring ownership to children while carrying on living in the property rarely achieves the inheritance tax outcome people expect.
Consider downsizing
Downsizing can play an important role in inheritance tax planning, particularly for homeowners whose property has increased significantly in value over time.
Many people assume that selling a larger property automatically means losing access to the residence nil-rate band. In fact, special downsizing provisions were introduced to prevent this outcome. Known as the downsizing addition, these rules can help preserve all or part of the residence nil-rate band when someone sells a more valuable home and moves to a smaller property, or stops owning a property altogether, for example when moving into residential care.
The principle is straightforward: if you would have qualified for the residence nil-rate band before downsizing, your estate may still be able to claim a comparable allowance after the move, provided other qualifying conditions are met and assets of equivalent value are ultimately left to direct descendants.
This can make downsizing an attractive option for homeowners who:
- No longer need a larger property
- Want to release capital during their lifetime
- Wish to simplify their estate
- Are concerned about inheritance tax exposure
- Are considering later-life moves or care arrangements
Downsizing may also create opportunities to use the proceeds more strategically. Some homeowners choose to gift part of the released capital to family members, potentially starting the seven-year clock for inheritance tax purposes. Others use the funds to support retirement planning or improve liquidity within the estate.
The rules surrounding the downsizing addition are detailed and the relief is not automatic. Executors must make the appropriate claim, and eligibility depends on factors including when the property was sold, the nature of the replacement property, and who ultimately inherits the estate.
For homeowners whose estate may be approaching the £2 million taper threshold, downsizing can be particularly worth exploring, as it may help create greater flexibility in broader estate planning discussions.
Before making any decision, it is important to understand both the current market value of your property and how a move would affect your overall estate. A professional valuation, combined with advice from a solicitor or tax adviser, can help ensure the intended inheritance tax benefits are achieved.
Charitable giving
Charitable giving is often overlooked in inheritance tax planning, yet it can be one of the most effective ways to reduce the overall tax burden on an estate while supporting causes that matter to you.
Where at least 10% of your net estate is left to a registered charity, the inheritance tax rate applied to the taxable portion of the estate can reduce from 40% to 36%.
While this may appear to reduce the amount passed to family members, the overall outcome is not always as straightforward as it seems. In some circumstances, a relatively modest charitable legacy can produce a meaningful tax saving, reducing the amount lost to inheritance tax and increasing the proportion of the estate directed according to your wishes.
For example, homeowners with estates that exceed the available nil-rate bands may find that charitable giving forms part of a wider estate planning strategy alongside:
- Maximising available inheritance tax allowances
- Structuring wills effectively
- Using lifetime gifting where appropriate
- Managing exposure to the residence nil-rate band taper
As with other inheritance tax planning measures, the details matter. The 10% calculation is based on the estate's net value after certain deductions and reliefs, rather than the gross estate value. This means careful calculations are often required to determine the potential benefit.
Charitable legacies can also be structured in different ways within a will. Some individuals leave a fixed sum, while others leave a percentage of their estate, which can ensure the gift remains proportionate as asset values change over time.
For homeowners whose estate may face a significant inheritance tax liability, charitable giving is worth discussing with a solicitor or estate planning specialist. Beyond the tax implications, it allows part of an estate to support organisations and causes that reflect the individual's values and priorities.
The next option focuses on another commonly used strategy: using life insurance written in trust to help families meet an inheritance tax bill without needing to sell property.
Life insurance written in trust
Life insurance will not reduce the inheritance tax liability on a property itself, but it can help ensure that beneficiaries have the funds available to pay an inheritance tax bill without needing to sell the family home.
When a life insurance policy is written in trust, the payout is usually held outside the estate for inheritance tax purposes. This means the proceeds can be paid directly to the trustees and beneficiaries, rather than becoming part of the estate and potentially increasing the inheritance tax liability.
For homeowners whose wealth is concentrated in property, this approach can provide valuable liquidity at a time when inheritance tax may become due.
This can be particularly relevant where:
- A significant proportion of the estate consists of the family home
- Beneficiaries wish to retain an inherited property rather than sell it
- Other assets within the estate are relatively illiquid
- The estate may face a sizable inheritance tax bill following the second death of a married couple
Inheritance tax is generally due within six months of the end of the month of death, while the sale of a property can take considerably longer. A life insurance payout can help bridge that gap and reduce the pressure on executors and family members.
The effectiveness of this strategy depends heavily on how the policy is arranged. A policy that is not written in trust may simply increase the value of the estate, potentially creating a larger inheritance tax liability rather than helping to solve it.
Premium affordability, medical underwriting, age and the size of the potential inheritance tax exposure all need careful consideration. For this reason, life insurance should be viewed as part of a broader estate planning discussion rather than a standalone solution.
Financial advisers can help assess whether life insurance written in trust is appropriate, how much cover may be needed, and how it fits alongside other inheritance tax planning measures such as will planning, gifting strategies and the use of available allowances.
For many families, the objective is not necessarily to reduce inheritance tax itself, but to ensure that an inheritance tax bill can be settled without forcing the sale of a property that beneficiaries would prefer to keep.
Why an accurate property valuation matters for IHT planning
Every inheritance tax planning decision starts with understanding the current value of your estate, and for most homeowners, the property is its largest single asset. Relying on an outdated estimate or an informal assumption can lead to under-planning or over-planning, both of which can have costly consequences for you and your beneficiaries.
Inheritance tax is calculated using the open-market value of a property at the date of death. This means the value used for tax purposes is not what the property was purchased for, nor what it may have been worth several years earlier. In markets where values can change significantly over time, an accurate and up-to-date valuation is essential.
For homeowners who are considering any form of estate planning, a realistic understanding of their property's value can help answer important questions, including:
- Whether the estate is likely to exceed available inheritance tax thresholds
- Whether the residence nil-rate band is available in full
- Whether the estate may be affected by the £2 million taper
- How much inheritance tax exposure may exist
- Whether gifting, downsizing or other planning measures are worth exploring
Hamptons offers both an instant online valuation and an expert in-person valuation. While an online valuation can provide a useful starting point, an in-person assessment by a local property expert is typically the more reliable basis for inheritance tax planning discussions, particularly for higher-value homes or estates approaching key tax thresholds.
Valuation becomes critical near the £2 million threshold
The residence nil-rate band taper can create a significant inheritance tax difference for homeowners with larger estates.
Once an estate exceeds £2 million, the residence nil-rate band starts to reduce. As a result, even relatively small changes in property value can affect the amount of relief available.
For homeowners in London and the South of England, where property often represents a substantial proportion of total wealth, understanding current market value can be particularly important when assessing potential inheritance tax exposure.
HMRC can challenge property values
Following a death, executors are responsible for reporting the property's open-market value to HMRC as part of the probate and inheritance tax process.
If HMRC believes a property has been undervalued, its Valuation Office Agency may review the figure and request further evidence. This can result in lengthy discussions, delays to estate administration and, in some cases, additional inheritance tax becoming payable.
Obtaining a well-supported market valuation helps provide a more robust basis for estate planning and eventual probate calculations.
Understanding sale prospects can be just as important
In some cases, inheritance tax liabilities are settled using cash held within the estate. In others, a property sale may be required.
Where a sale is likely, families often benefit from understanding not only what a property may achieve in the current market, but also the likely marketing period and sales process. Early preparation can reduce pressure on executors and help avoid rushed decisions at a difficult time.
How Hamptons can help
At Hamptons, our role is to provide accurate property valuations and support families through the sale of inherited property when required.
We can help homeowners understand the current market value of their property and how it fits within broader estate planning discussions. The inheritance tax planning itself, including will drafting, gifting strategies and tax advice, should always be carried out with the support of a qualified solicitor, tax adviser or financial planner.
Getting the foundation right
Inheritance tax planning is becoming increasingly relevant for homeowners. The reason is simple: inheritance tax thresholds are frozen, while property values have risen substantially over recent decades. As a result, more estates are crossing key tax thresholds and becoming liable for inheritance tax, even where families do not consider themselves particularly wealthy.
At the same time, many of the most expensive inheritance tax mistakes are entirely avoidable. Gifting a property but continuing to live in it, failing to account for the £2 million residence nil-rate band taper, or relying on an outdated will structure can all undermine otherwise sensible planning.
The most effective approach is usually not a single inheritance tax strategy, but a combination of measures tailored to your circumstances. This may involve making full use of available allowances, reviewing your will, considering lifetime gifting, exploring downsizing options, using equity release to pass wealth to family members, or putting arrangements in place to provide liquidity for future tax liabilities.
What all of these options have in common is the need for accurate information. Before you can assess whether an estate may be exposed to inheritance tax, you need a clear understanding of its current value, and for most homeowners that starts with the property itself.
An accurate valuation provides the foundation for informed discussions with solicitors, tax advisers and financial planners. It helps identify whether an estate may approach key inheritance tax thresholds, whether valuable reliefs could be lost, and which planning options are most appropriate.
At Hamptons, we provide expert property valuations across London and the South of England, supported by local market knowledge developed over more than 150 years in the property industry. We sell or let more than 18,000 properties each year, giving our valuers a detailed understanding of what homes are achieving in today's market, not just what online estimates suggest they might be worth.
Whether you are beginning to think about estate planning or reviewing existing arrangements, understanding the current value of your property is the first practical step.
