Moving property in a demerger: the SDLT traps

If your demerger involves property, stamp duty land tax (SDLT) is often the biggest tax at stake. Capital gains reliefs can make the shareholders' and companies' position tax neutral, but SDLT works differently. It is charged on the value of the property, not on a gain, and its reliefs have their own conditions and their own clawback rules.

This article explains the three reliefs that usually matter, the traps in each, and what changes if your property is in Wales or Scotland.

Why SDLT bites in a demerger

Moving property from one company to another is normally a land transaction. Two features make it costly:

• Market value. Where the buyer is a company connected with the seller, the chargeable consideration is generally taken to be at least the market value of the property, even if nothing is paid (section 53 FA 2003).
• Non-residential rates. On commercial property in England and Northern Ireland, SDLT is 0% up to £150,000, 2% on £150,001 to £250,000 and 5% above £250,000.

So unless a relief applies, moving a valuable commercial building between connected companies can cost a significant amount, even though no money changes hands. The reliefs that matter are in Schedule 7 to the Finance Act 2003.

Trap 1: group relief and the three-year clawback

What it does. Group relief removes SDLT on a transfer between companies in the same group, broadly where one is a 75% subsidiary of the other or both are 75% subsidiaries of a third.

The common plan. Property is moved out of the trading company into a new subsidiary using group relief, and that subsidiary is then demerged.

The traps.

1. Arrangements at the outset. Group relief is not available where, at the time of the transfer, there are arrangements for the buying company to leave the group. If the demerger is already planned when the property moves, that can deny the relief from the start.
2. Withdrawal within three years. If the buying company leaves the vendor's group within three years of the transfer, or under arrangements made in that period, while still holding the property, the relief is withdrawn.
3. The clawback amount. The charge is based on the market value at the time of the original transfer, not today's value.

There are limited exceptions. For example, the relief is not withdrawn where the buying company leaves the group because of something done in winding up the vendor, or because of an acquisition of shares qualifying for stamp duty relief under section 75 FA 1986, provided further conditions are met. There is also a rule for cases where the buyer leaves because the vendor leaves the group. Each exception has its own anti-avoidance conditions, so none should be assumed.

Takeaway: don't move property within the group using group relief as a first step towards a demerger without checking how the later steps interact.

Trap 2: reconstruction relief and the mirror-image test

What it does. Reconstruction relief can remove SDLT entirely where a company acquires all or part of another company's undertaking as part of a scheme of reconstruction.

The conditions, broadly:

• the only consideration is non-redeemable shares issued to the target's shareholders
• every shareholder of each company is a shareholder of the other afterwards
• each shareholder holds the same proportion in both companies, or as nearly as may be
• the acquisition is for bona fide commercial reasons and is not part of a tax avoidance scheme

Note that, unlike the capital gains rules since November 2025, this SDLT relief still contains a bona fide commercial reasons test.

The traps.

• Partitions fail the mirror test. If shareholders are going separate ways, they won't hold the same proportions in each company.
• Cash or other consideration beyond the shares can take the transaction outside the relief.
• Change of control within three years. The relief is withdrawn if control of the acquiring company changes within three years, or under arrangements made within that period, while it still holds the property.

Trap 3: acquisition relief is not a fallback for property businesses

What it does. Acquisition relief doesn't need mirror-image shareholdings, but it only reduces SDLT to 0.5% of the chargeable consideration.

The key condition. The undertaking being acquired must have, as its main activity, a trade that is not wholly or mainly dealing in land. Cash or other non-share consideration must also be limited (no more than 10% of the nominal value of the shares issued).

The trap. Holding property to let is generally an investment activity, not a trade. So where the business being moved is a rental portfolio, acquisition relief is usually not available at all. It is more useful where a trading business that happens to own its premises is being moved.

Acquisition relief has the same three-year change of control withdrawal as reconstruction relief.

The reliefs side by side

Trap 4: distributing property in specie

Sometimes the plan is for a company to distribute property, or shares in a property company, rather than sell it. There is an exception from the market value rule where a company distributes its assets. But it does not apply if group relief was claimed on the property, or on the property it derives from, in the three years before. Liabilities taken over, such as a mortgage, can also be chargeable consideration. How the steps are structured, and in what order, changes the answer.

Trap 5: forgetting the paperwork

• In England and Northern Ireland, a land transaction return is usually needed within 14 days of the effective date, even where relief is claimed.
• If relief is withdrawn, a further return is due within 30 days of the event that triggered it.
• Stamp duty on shares is separate, with its own reliefs claimed through HMRC adjudication.

Wales and Scotland

SDLT applies in England and Northern Ireland only.

• Wales: Land Transaction Tax, under the Land Transaction Tax and Anti-avoidance of Devolved Taxes (Wales) Act 2017. Group relief is in Schedule 16 and reconstruction and acquisition relief in Schedule 17. It is administered by the Welsh Revenue Authority.
• Scotland: Land and Buildings Transaction Tax, under the Land and Buildings Transaction Tax (Scotland) Act 2013. Group relief is in Schedule 10 and reconstruction and acquisition relief in Schedule 11. It is administered by Revenue Scotland.

The reliefs follow a broadly similar shape to SDLT, but the details, rates and filing rules differ. A group with property in more than one nation needs each regime checked separately.

Before you move any property

• List every property, where it is, its value, any mortgage and how it was acquired.
• Note any intra-group transfers in the last three years (SDLT) and six years (capital gains degrouping).
• Decide who will own what afterwards. Mirror-image or not?
• Be clear about any sale, investment or change of control expected within three years.
• Check whether the business being moved is a trade or an investment.

SDLT is one part of a wider picture. See stamp duty and SDLT on demergers and separating property from a trading company. Relief depends on the facts, the order of the steps matters, and that's where we come in.

This article is general information, not advice. Tax rules change and their effect depends on your circumstances. Please speak to us before acting.