Property Loss Relief Explained: Reducing Inheritance Tax When Property Falls in Value After Death
When administering an estate, executors often assume that the value of a property for Inheritance Tax (IHT) purposes is fixed at the date of death. However, if land or buildings are subsequently sold for less than their probate value, it may be possible to reduce the estate's IHT liability by claiming Property Loss Relief.
This relief can produce significant tax savings where the property market declines after death, but the rules are more complex than many people realise. Strict qualifying conditions apply, all relevant property sales must be considered, and not every disposal will qualify.
In this article, we explain how Property Loss Relief works, when it is available, and how to make a successful claim.
What is Property Loss Relief?
Property Loss Relief is a statutory relief contained in section 191 of the Inheritance Tax Act 1984 (IHTA 1984). It allows the personal representatives of a deceased person to substitute the probate value of qualifying land or buildings with the lower sale price achieved after death.
The purpose of the relief is to ensure that an estate does not pay Inheritance Tax on a value that was never ultimately realised.
When is Property Loss Relief Available?
A claim may be made where:
the sale is made by the appropriate person, usually the personal representatives or executors of the estate;
the asset sold is an interest in land that formed part of the deceased's estate;
the property is sold within four years of the date of death (subject to limited extensions, such as certain compulsory purchases); and
the sale qualifies under the legislation.
If these conditions are satisfied, the executors may claim for the sale value to be substituted for the property's date of death value when calculating the estate's Inheritance Tax liability.
A Simple Example
Terry died in August 2006 and his home was valued for probate at £300,000.
His executors sold the property in December 2008 in an arm's length transaction for £250,000.
As the sale took place within the qualifying period and met the statutory conditions, the executors claimed Property Loss Relief. The property's value for Inheritance Tax purposes was reduced from £300,000 to £250,000, reducing the taxable value of the estate by £50,000.
It's Not Just the Property Sold at a Loss
One of the most commonly misunderstood aspects of Property Loss Relief is that a claim does not apply solely to the property sold at a loss.
Once a claim is made, the legislation requires the sale proceeds of all qualifying interests in land sold by the personal representatives within the four-year qualifying period to be substituted for their probate values.
However, there is an important exception.
Where a property is sold at a gain during the fourth year after death, that increase in value is ignored. Only gains realised on qualifying property sales during the first three years following death are brought into the calculation. By contrast, losses realised during the fourth year can still qualify for relief because they are treated as occurring within the three-year period under the legislation.
This means that while losses can generally be claimed on qualifying sales made throughout the four-year period, gains are only taken into account if they arise on sales within the first three years after death.
Why this matters
Suppose an estate contains two properties:
Property A has a probate value of £500,000 and is sold two years after death for £450,000, creating a loss of £50,000.
Property B has a probate value of £400,000 and is sold eighteen months after death for £450,000, producing a gain of £50,000.
If the executors claim Property Loss Relief, both sales must be considered. The gain on Property B may offset the loss on Property A, meaning little or no reduction in the estate's Inheritance Tax liability.
By contrast, if Property B had been sold at the higher value during the fourth year after death, that gain would generally be ignored for the purposes of the relief, while the loss on Property A could still qualify.
For this reason, executors should always undertake a detailed review of all qualifying property disposals before deciding whether to submit a claim. A claim does not automatically reduce the estate's tax bill, and in some cases there may be little or no benefit.
Situations Where the Sale Price May Be Adjusted
The sale proceeds are not always substituted without adjustment.
The legislation contains provisions requiring adjustments where special circumstances affect the sale. These rules are intended to ensure that the substituted value reflects the true market value of the property rather than an artificially high or low sale price.
Professional advice is often required where there are unusual transactions or circumstances surrounding the disposal.
When is Property Loss Relief Not Available?
The relief cannot be claimed in every case.
It is not available where:
the difference between the probate value and the sale price is less than £1,000 or 5% of the probate value, whichever is lower;
the disposal is a non-qualifying sale, such as certain sales to connected persons or transactions that do not satisfy the statutory conditions; or
the only property sold qualified for 100% Agricultural Property Relief (APR) or 100% Business Property Relief (BPR) at the date of death.
From 6 April 2026, the rules for Agricultural Property Relief and Business Property Relief have changed. A combined 100% relief allowance now applies to qualifying agricultural and business property, with any value above that threshold generally qualifying for relief at 50%. As a result, Property Loss Relief may become relevant in circumstances where it would previously have been unavailable because the property benefited from full relief.
How Do You Claim Property Loss Relief?
The claim must be made by the appropriate person, usually the executors or personal representatives administering the estate.
The claim is submitted to HMRC after the qualifying sale has taken place and must be made within the statutory time limits. HMRC will then substitute the qualifying sale values for the probate values when recalculating the estate's Inheritance Tax liability.
Given the interaction between multiple property sales, valuation rules and reliefs, the calculation should always be reviewed carefully before a claim is submitted.
How Surrey Hills Tax can help
Property Loss Relief can significantly reduce an estate's Inheritance Tax liability, but only where the statutory conditions are satisfied and the overall effect of the claim has been properly considered.
Our specialist inheritance tax advisers can:
review whether Property Loss Relief is available;
assess whether making a claim will actually reduce the estate's Inheritance Tax liability;
calculate the effect of all qualifying property sales within the statutory period;
advise on transactions involving connected persons and other non-qualifying sales; and
prepare and submit claims to HMRC on behalf of executors and personal representatives.
If you are administering an estate and one or more properties have been sold since the date of death, we can help determine whether Property Loss Relief could reduce the amount of Inheritance Tax payable.