If you're thinking about giving your home to your children to reduce inheritance tax, you need to understand that you must genuinely give up the property. This article explains what can go wrong and how to avoid common pitfalls.
The Basic Rule
When you give away an asset during your lifetime, this is known as a potentially exempt transfer or PET. The word "potentially" is crucial here. The gift only becomes fully exempt from inheritance tax if you survive for seven years after making it. However, the seven-year rule for PETs only works if you are fully excluded from benefit throughout the seven years ending on death.
If you occupy or enjoy the asset at any point in that final seven-year period, the gift is caught by the gifts with reservation rules and the property is treated as part of the estate at death. For example: If you give away your home but continue living there without paying full market rent, then HMRC treats the property as if you never gave it away. It remains part of your estate for inheritance tax purposes when you die.
If the reserved benefit stops during lifetime, the end of that benefit creates a new deemed PET. You must then survive a further seven years from the cessation date for the gift to fall out of charge. Normally, everyone can give away £3,000 each year free of inheritance tax (the annual exemption), but this cannot be used to reduce the value of this new deemed PET. This means the full value of the property at the date you move out becomes potentially taxable if you die within seven years.
To properly understand how you could get caught, you need to know that two different sets of rules apply:
PETs work on a simple principle: survive seven years after making a gift and it's tax free. But this only works if you've genuinely given the asset away and stayed excluded from any benefit during the seven years before your death.
Gifts with reservation rules ask a different question: did you keep or resume getting a benefit from the property in the seven years before death? If yes, the property stays in your estate. If you stopped getting a benefit earlier, that creates a new PET that needs its own seven years to run.
When Does a Reservation Actually Happen?
The law says you've kept a benefit in two main situations. Under Finance Act 1986 section 102, a reservation arises if, after the gift:
a) the donee does not take full possession and enjoyment at or before the start of the relevant period, or
b) during the relevant period the property is not enjoyed to the entire, or virtually entire, exclusion of the donor and of any benefit to them
The relevant period is the period beginning seven years before death, or the date of the gift if later, and ending on death. If a reservation exists at death, the property is treated as part of the estate immediately before death. If it ends during lifetime, section 102(4) treats the cessation as a new PET.
For example,
Ms Jane Doe gives her house to her son in 1997. She moves out in 2016 but returns in 2017 and lives rent-free until her death in 2020.
The test window is the seven years before death, from 2013 to 2020. Her rent-free occupation from 2017 to 2020 is a benefit in that period. Section 102(1)(b) applies because the property was not enjoyed by her son to her entire exclusion. The house is therefore treated as part of her estate at death, even though the original gift was made decades earlier.
Who Pays the Tax?
When a property gets pulled back into your estate because of these reservation rules, the person who received the gift usually has to pay the inheritance tax on it. This can vary depending on what your will says about who pays taxes and debts.
For example,
If you gave your house to your son but continued living there, and the house is worth £500,000 when you die, your son would typically have to pay the inheritance tax on that value, even though he thought he already owned it outright.
What About the POAT Charge? & What are POAT Charges, Exactly?
POAT stands for "pre-owned asset tax" and it's an annual income tax charge you might have to pay if you're benefiting from something you used to own but gave away. So, basically, if you're still enjoying something you supposedly gave away, you need to pay tax on that benefit every year.
When Does POAT Apply?
The most common situation is when you give someone cash, they use that money to buy a house, and you then live in that house. Because you gave away cash rather than the house itself, the normal gift reservation rules don't apply. Instead, POAT catches you.
For example,
You give your daughter £300,000. She uses it to buy a house. Two years later, you move in with her. You could face an annual income tax bill based on what it would cost to rent a similar property, even though you're living with family. This annual charge is treated as income and taxed at your marginal income tax rates, using the open-market rental value of the property as the basis.
Can You Avoid the Annual Charge?
You can choose to opt out of POAT by making an election, which essentially says: "Treat me under the normal inheritance tax rules instead." This stops the annual income tax charge, but it means the property value gets added to your estate when you die. You're swapping an annual tax bill during your lifetime for a potentially larger inheritance tax bill on death.
This choice often comes down to whether you prefer paying a smaller amount every year or risking a larger sum later.
How This Works in Practice
Let's look at three common scenarios to see how these rules play out:

Scenario A:
You gave your house away in 1997, moved back in during 2017 and lived there rent-free until your death in 2020.
The result: The house gets included in your estate at its market value on death. The residence nil rate band may still apply if the property goes to your children or grandchildren, but the property is fully taxable as if you'd never given it away.

Scenario B:
You gave your home away in 2010 but continued living there rent-free. In 2021, you start paying full market rent. You die in 2025.
The result: When you started paying rent in 2021, the reservation ended and created a new PET. Because you died within seven years (in 2025), this PET is chargeable. The annual £3,000 exemption can't be used against it. However, since you survived four years after starting to pay rent, taper relief applies, reducing the inheritance tax by 20%.

Scenario C:
You gave cash in 2002. The recipient bought a house in 2003. You moved into that house in 2019.
The result: Usually no reservation applies because you gave away cash, not the house itself. However, POAT may apply, meaning you'd pay income tax each year based on the property's rental value, unless you elect to be treated under the inheritance tax rules instead.
Practical steps you should take
Conclusion
If you are concerned that past gifts, current living arrangements or planned transfers might fall within the reservation of benefit rules or attract a POAT charge, speak to us. We can review your position, identify any exposure to Inheritance Tax, and set out practical steps to correct or prevent issues.
Proper advice at the right time can make a significant difference to the tax outcome. Contact us for a detailed review of your property arrangements and to make sure your planning works as intended and meets all HMRC compliance requirements.
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