Help Sheet - Estate planning documents

S102B Gift Planning

S102B gift planning is one of the more creative — and genuinely effective — approaches to reducing Inheritance Tax on the family home. It allows a homeowner to gift a share of their property to someone who genuinely lives there, starting the seven-year IHT clock immediately, while continuing to live in the property themselves. When the conditions are properly met, it's a well-established and legally sound approach. When they're not, it can unravel entirely — which is why understanding how it works, and what's required, matters so much.

The legislation behind it

The Gift with Reservation of Benefit rules — found in the Finance Act 1986 — exist to prevent people from giving assets away for IHT purposes while continuing to enjoy them as though they'd never given them at all. In simple terms: if you give something away but carry on benefiting from it, HMRC treats the gift as though it never happened for IHT purposes.

Section 102B of the Finance Act 1986 creates an important exception to this rule for property. It allows a donor to gift a share of their home and continue living there — without the gift being treated as a reservation of benefit — provided certain specific conditions are met. The most important of these is that the recipient must genuinely occupy the property as their own home. This isn't a technicality. It's the foundation the entire arrangement rests on.

The Lady Ingram case — what "occupy" actually means

The definition of occupation for the purposes of S102B was clarified significantly by the Lady Ingram case in 1999. The case established that both the donor and the recipient can occupy the same property simultaneously — neither has to have exclusive use. But the recipient's occupation must be genuine. Based on case law, occupation is generally considered genuine when the person:

• lives at the property as their home, or spends significant time there

• does not pay more than 50% (or equivalent to their share) of the household bills

• visits more than just on special occasions

• keeps personal belongings at the property

• has unrestricted access — their own key, their own presence, treated as a resident rather than a guest

These aren't arbitrary checkboxes. They're the factors HMRC and the courts will look at if the arrangement is ever challenged. The occupation has to be real — not constructed to satisfy a test. If a child lives in the property as their home, the conditions are generally straightforward to meet. If they live elsewhere and visit occasionally, they aren't genuinely occupying, and the gift won't qualify.

"The Lady Ingram case is often misunderstood as a loophole. It isn't. It's a recognition that co-ownership and co-occupation are legitimate arrangements, and that a gift in those circumstances can be genuine. The key word, always, is genuine."

How the planning works in practice

The gift itself

The donor gifts a share of the property — typically up to 50% of their own share — to a qualifying occupant. This is a Potentially Exempt Transfer (PET) for IHT purposes: it falls outside the estate entirely if the donor survives seven years from the date of the gift. The seven-year clock starts from the moment the gift is made, not from death or any later event. There is no Capital Gains Tax concern for the recipient, provided the property is their main residence — their principal private residence relief covers any gain.

The Declaration of Trust and co-ownership agreement

Once the gift has been made, a Declaration of Trust is drawn up to formally record the ownership shares — who owns what percentage and on what terms. Alongside this, a co-ownership agreement is prepared, setting out the practical arrangements between the co-owners: who lives where, how bills are divided, what happens if one party wants to sell, and how the property is managed day to day. This isn't just good housekeeping — it provides clear evidence that the arrangement is a genuine co-ownership rather than a paper exercise.

Placing shares into an APT+ — the optional next step

At the point the gift is made, the recipient owns their share absolutely. For some families, this is the right outcome — the child owns their share, they live there, the arrangement is clean and simple. For others, there may be a concern about what happens to that share if the child goes through a divorce, faces creditors, or simply isn't ready to manage an asset of that size. In those cases, after the gift has been completed and the Declaration of Trust is in place, each party can consider placing their share into an Asset Protection Plus Trust. This brings trustee control into the picture — the share is held by trustees on behalf of the beneficiaries rather than sitting in the individual's personal estate exposed to their circumstances. This is a decision to be made based on individual circumstances, and it isn't always necessary.

The RNRB — an important consideration

This is a point that's frequently overlooked and genuinely matters. The Residence Nil Rate Band — currently up to £175,000 per person — is an additional IHT-free allowance available when a main residence passes to direct descendants on death. It can only be claimed against the deceased's estate. It cannot be applied to lifetime gifts, even if those gifts would otherwise have qualified.

What this means in practice: if you gift away a share of your property, and the remaining share in your estate is worth less than your available RNRB (or combined RNRB for a married couple), you may not be able to use your full RNRB on death — because there isn't enough residential property left in your estate to claim it against. The gifted share has left your estate as a PET, and the RNRB cannot follow it.

This doesn't mean S102B planning is wrong — for many people the IHT saving from the gift far outweighs the lost RNRB. But it's a calculation that needs to be done properly before proceeding, not discovered afterwards. For a married couple with a combined RNRB of up to £350,000, gifting more than half the property away could mean losing some or all of that allowance on the second death. The right amount to gift depends on the numbers in each individual case.

"The RNRB is a use-it-or-lose-it allowance — and it can only be used against what's actually in the estate on death. If the property has already left the estate as a gift, the RNRB has nothing to attach to. This is one of the most important things to model before making any gift."

Things to consider

• The occupation must be genuine — always

  • There is no version of S102B planning that works without a genuine occupant. Arrangements constructed purely to satisfy the technical conditions, where the recipient doesn't actually live in the property in any meaningful sense, are at serious risk of being challenged by HMRC. The gift must be real, the occupation must be real, and the co-ownership must be real. If those conditions are genuinely met, the planning is sound. If they aren't, it's unlikely to hold.

• What happens if the occupant stops occupying

  • If the qualifying occupant moves out — goes abroad, moves into their own home, or simply stops living at the property — the conditions for S102B are no longer met from that point forward. HMRC may treat the gift as having become a reservation of benefit from the point occupation ceased. This needs to be reviewed if circumstances change, and the co-ownership agreement should include provisions for what happens in this scenario.

• Seven years — and what happens in between

  • The gift is a PET, meaning it only falls completely outside the estate after seven years. If the donor dies within seven years, taper relief may apply on a sliding scale — reducing the IHT on the gift from year three onwards — but the gift isn't fully exempt until the full seven years have passed. This is another reason to act early rather than late.

• Professional advice and proper documentation

  • S102B planning involves a property transfer, a Declaration of Trust, a co-ownership agreement, and potentially an APT+ for each share. Each of these needs to be properly drafted and executed. We work with a qualified Doctor of Law on all property trust arrangements, who carries out the necessary due diligence, handles the Land Registry title update, and ensures the documentation is in place to support the arrangement if it's ever scrutinised.

• Who S102B planning works well for

  • S102B gift planning is most effective for homeowners who have a child or other person genuinely living with them, who want to reduce the IHT exposure on their main residence during their lifetime, and who are comfortable with the concept of gifting a share of the property now rather than leaving it entirely in a Will. It works best when done early — giving the seven-year clock the best chance to run — and when the numbers have been properly modelled to account for the RNRB position. It is not suitable where the recipient isn't genuinely occupying the property, or where the motivation is purely to engineer a technical condition rather than to reflect a genuine arrangement.