SDLT Linked Transactions: When Are Property Purchases Linked?

Buying two or more properties from the same seller does not automatically mean that the purchases are linked for Stamp Duty Land Tax (SDLT) purposes.

Whether transactions are linked can, however, make a significant difference to the amount of SDLT payable. The rules can apply to residential, commercial and mixed-use property transactions and are particularly important where several properties, adjoining interests or separate lots are acquired from the same seller or connected sellers.

The key question is whether the transactions form part of a single scheme, arrangement or series of transactions between the same buyer and seller, or persons connected with them.

This article explains when property purchases may be linked for SDLT purposes, why separate contracts are not necessarily decisive, and the factors that should be considered before an SDLT return is submitted.

What are linked transactions for SDLT?

The linked transactions rules are contained in section 108 Finance Act 2003.

Broadly, transactions are linked where they form part of:

• a single scheme;
• a single arrangement; or
• a series of transactions,

between the same vendor and purchaser, or persons connected with either of them.

HMRC's published guidance confirms an important point: the mere fact that two transactions involve the same purchaser and seller does not necessarily make them linked.

There must be something connecting the transactions so that, viewed in their factual context, they form part of the same deal.

That distinction is often crucial.

Why does it matter whether property purchases are linked?

Where transactions are linked, SDLT is generally calculated by applying the relevant rates to the aggregate chargeable consideration for the linked transactions and then apportioning the resulting tax between them.

This can result in materially more SDLT being payable than if each acquisition were an independent transaction.

For example, suppose an investor purchases two properties from the same seller for £200,000 each.

If the purchases are genuinely independent, the SDLT position is considered separately for each £200,000 acquisition.

If they are linked, the applicable SDLT rates may instead be determined by reference to aggregate consideration of £400,000.

The precise tax result will depend upon the nature of the properties, the purchaser and the SDLT regime applicable to the transactions.

It is also important to flag that where linked transactions include both residential and non-residential (or mixed-use) elements, special rules can affect which rates apply and how the aggregate consideration is treated. In those cases it is not simply a question of aggregating all of the consideration and applying a single set of residential rates — the analysis may need to distinguish the residential and non-residential components. See our guidance on non-residential and mixed-use property.

Are two properties bought from the same seller automatically linked?

No.

This is one of the most important points about SDLT linked transactions.

Two transactions do not become linked merely because:

• the buyer is the same;
• the seller is the same;
• they complete on the same day; or
• the properties are geographically close to one another.

HMRC itself states that transactions between the same purchaser and seller are not necessarily linked.

The question is whether the purchases are actually part of the same deal, scheme, arrangement or relevant series of transactions.

That requires an examination of the facts.

What factors indicate that property transactions may be linked?

There is no single mechanical test. Relevant factors can include:

1. Were the properties negotiated together?

If the commercial negotiations concerned both properties as a package, this may point towards a single arrangement.

Conversely, separately negotiated purchases may support the proposition that the acquisitions are independent, although this is not conclusive.

2. Was one purchase conditional upon the other?

This can be a particularly important factor.

If the buyer could not acquire Property A unless it also acquired Property B, that may provide strong evidence that the transactions form part of one arrangement.

Where each property could genuinely have been purchased independently, the position may be different.

3. Was there a single overall price?

An agreed package price subsequently allocated between several properties may suggest a single deal.

Separate prices independently agreed for each property can point in the other direction, although again this is not determinative by itself.

4. Were there separate contracts?

Separate contracts are relevant evidence, but they do not determine the SDLT treatment.

HMRC expressly states that documenting transactions separately will not prevent them from being linked if the underlying arrangements demonstrate that they are part of a single deal.

Substance therefore matters more than simply dividing an acquisition between several contracts.

5. Did the transactions complete together?

Simultaneous completion may be relevant, particularly when combined with other evidence of a single arrangement.

However, completing on the same date does not, by itself, establish that transactions are linked.

Equally, transactions do not necessarily escape the linked-transactions rules simply because they complete on different dates.

6. Was there common financing?

A single loan facility or security package covering several properties can be relevant to understanding the overall transaction.

However, financing arrangements should be considered in their proper context.

For example, where two acquisitions had already been independently negotiated and became unconditional before a common financing arrangement was subsequently put in place, the existence of that financing does not necessarily determine whether the underlying purchases themselves formed a single scheme or arrangement.

7. Are the sellers or purchasers connected?

Section 108 extends beyond transactions literally involving identical parties.

The connected-person rules can therefore bring transactions involving connected vendors or purchasers within the linked-transactions regime.

Does buying properties at the same auction make them linked?

Not necessarily.

Suppose a property investor successfully bids on two separate auction lots being sold by the same vendor.

Relevant questions could include:

• Was each lot separately advertised?
• Was there a separate bid for each property?
• Was a separate price determined for each?
• Could the purchaser have bought one property without buying the other?
• Was either contract conditional upon completion of the other?
• Was there any agreement before or during the auction that both properties would be acquired together?

If the investor simply happens to win two genuinely independent lots, common ownership of the vendor and simultaneous completion do not necessarily make the transactions linked.

If, however, the supposed separate purchases were in reality elements of an agreed package, the conclusion may be different.

Does using one loan for two property purchases make them linked?

Not necessarily.

This is a particularly important practical issue.

The SDLT test concerns whether the land transactions form part of a single scheme, arrangement or series of transactions.

A lender may, for entirely commercial reasons, provide one facility secured against several properties.

That is a relevant fact, but it should not automatically override the circumstances in which the underlying acquisitions were negotiated and contracted.

For example, if:

• each property was independently marketed;
• separate prices were agreed;
• separate unconditional contracts existed;
• neither acquisition depended upon the other; and
• the financing arrangements were agreed subsequently,

there may be good grounds for concluding that the acquisitions themselves were not part of a single scheme or arrangement.

Every case nevertheless turns on its own facts.

Does buying a house and adjoining land separately avoid linked transactions?

Potentially not.

HMRC gives the example of a house and gardens being sold under an arrangement whereby one spouse purchases the house and the other purchases the gardens.

HMRC regards those transactions as linked because, despite the division of the acquisition between two purchasers, they form part of the same overall deal.

This illustrates why simply dividing an acquisition between contracts, purchasers or legal titles does not necessarily alter the SDLT analysis.

What does "series of transactions" mean?

The fact that transactions occur one after another does not, without more, necessarily establish that they form a 'series' for section 108 purposes.

HMRC's guidance acknowledges that there must be something else connecting them.

This can become particularly important where a buyer makes several acquisitions from the same seller over time.

The fact that Property B is acquired after Property A is insufficient by itself. It is necessary to consider whether there was an arrangement connecting the purchases and, amongst other things, whether the first transaction affected the terms of the later transaction.

What evidence should be reviewed when deciding whether transactions are linked?

The SDLT analysis should ideally be undertaken before the SDLT returns are filed.

Depending upon the transaction, relevant documentation may include:

• heads of terms;
• auction particulars;
• sales particulars;
• correspondence between buyer and seller;
• correspondence between solicitors;
• purchase contracts;
• transfer documentation;
• board minutes;
• financing documents;
• valuation material;
• evidence showing how each purchase price was negotiated; and
• evidence as to whether either transaction was conditional upon the other.

Contemporaneous evidence can be particularly valuable if HMRC subsequently challenges the SDLT treatment.

How are linked transactions reported on the SDLT return?

Where transactions are linked, the SDLT return must reflect that status and the total consideration for the linked transactions is relevant to completion of the return.

HMRC permits certain linked transactions with the same effective date to be reported using a single land transaction return, although the appropriate filing method depends upon the transactions concerned.

Because an incorrect treatment can result in additional SDLT, interest and potentially penalties, the filing position should be checked carefully.

What about Multiple Dwellings Relief?

Multiple Dwellings Relief (MDR) was abolished for transactions completing or substantially performed on or after 1 June 2024, subject to transitional provisions.

There are specific transitional rules for linked transactions where transactions straddle the abolition of MDR.

Accordingly, older transactions and transactions falling within the transitional provisions can require separate analysis.

Are linked transactions always disadvantageous?

Not necessarily.

Linked transactions are principally a mechanism for determining the appropriate SDLT treatment and should not simply be viewed as an anti-avoidance penalty.

Their effect depends upon the particular properties and the SDLT rules applicable to them.

For example, transactions involving non-residential or mixed property can require a different analysis from straightforward residential acquisitions.

The important point is to identify correctly whether the transactions are linked before calculating the SDLT liability.

Common misconceptions about SDLT linked transactions

"The contracts are separate, so the purchases cannot be linked."

Incorrect. Separate documentation is not decisive.

"They completed on the same day, so they must be linked."

Not necessarily. Timing is only one part of the factual analysis.

"The same seller sold both properties, therefore they are linked."

Again, not necessarily. HMRC expressly recognises that transactions between the same buyer and seller are not automatically linked.

"We used one mortgage, therefore the transactions must be linked."

Not necessarily. Financing is potentially relevant evidence but the statutory question concerns the relationship between the land transactions themselves.

"If transactions happen several months apart they cannot be linked."

Incorrect. Transactions can potentially form part of a relevant series even when they do not occur simultaneously.

When should specialist SDLT advice be obtained?

Professional advice should be considered where:

• several properties are being acquired from the same seller;
• properties are acquired from connected sellers;
• multiple auction lots are purchased;
• residential and commercial or mixed-use property is being acquired;
• there is a common financing arrangement;
• contracts are interdependent or complete simultaneously;
• the parties disagree about whether the transactions should be reported as linked;
• HMRC has opened an enquiry into the SDLT treatment; or
• a purchaser believes SDLT may previously have been calculated incorrectly.

The distinction between linked and independent transactions can involve substantial amounts of tax, particularly for higher-value property acquisitions.

Specialist advice on SDLT linked transactions

At Newshams Tax Advisers, we advise property investors, businesses, individuals, solicitors and other professional advisers on complex SDLT issues, including whether multiple property acquisitions constitute linked transactions under section 108 Finance Act 2003.

Our advice can include reviewing the underlying contracts and transaction documents, considering the commercial circumstances surrounding the acquisitions, calculating the SDLT consequences and advising on the appropriate reporting position.

Where necessary, we can also advise in relation to HMRC enquiries and disputes concerning the SDLT treatment of a transaction.

If you are acquiring multiple properties, or have already completed transactions and are uncertain whether they should have been treated as linked, specialist advice should be sought by reference to the particular facts.

Contact Newshams Tax Advisers to discuss your SDLT position, or arrange a consultation with Simon Newsham CTA — we advise property investors, solicitors and professional advisers on linked transactions and all aspects of SDLT.

---

This article provides general information only and does not constitute tax or legal advice. SDLT treatment is highly fact-sensitive and advice should be obtained on the circumstances of the particular transaction.