LBTT Guidance: Calculating Tax for Linked Property Transactions

How LBTT is calculated for linked transactions

When transactions are linked for LBTT purposes, you do not calculate tax on each purchase separately. Instead, you add together the chargeable consideration for all linked transactions, work out the total LBTT as if they were one transaction, and then split that tax between the individual transactions in proportion to their share of the total.

• Linked transactions are taxed by using the total consideration across the whole linked group, not by looking at each deal on its own.
• The calculation is: work out total consideration, apply the correct LBTT rates and bands to that total, then apportion the tax to each transaction by its proportion of the total price.
• This often increases the tax bill because combining the prices can push more of the total into higher LBTT bands.
• You must use the correct rates and bands for the type of property involved, and the chargeable consideration for each transaction.
• Small differences can arise because of rounding when the total tax is divided between the linked transactions.
• In the example, three linked purchases totalling £600,000 produced total LBTT of £18,500, which was then split between the three plots according to their relative values.

Scroll down for the full analysis.

How LBTT is calculated for linked transactions

This page explains how Land and Buildings Transaction Tax (LBTT) is worked out when a transaction is linked to one or more other transactions. The key point is that linked transactions are not taxed in isolation. Instead, the total consideration across all linked transactions is used first, and the overall tax is then split between the individual transactions.

What this rule is about

LBTT is charged by reference to the consideration given for a land transaction. Normally, you would look at one transaction on its own. But where transactions are linked, the legislation changes the calculation.

The purpose of the linked transaction rules is to stop a series of connected purchases being taxed as if each stood alone where, in substance, they form part of a wider arrangement. If the transactions are linked, the tax bands and rates are applied to the combined consideration, not separately to each deal.

The source material refers to section 26 of the Land and Buildings Transaction Tax (Scotland) Act 2013. It also points readers to separate guidance on when transactions are linked. This page is about how to calculate the tax once you already know that the transactions are linked.

What the official source says

The official guidance says that where a chargeable transaction is one of a number of linked transactions, you first calculate the LBTT on the total consideration for all of them as if they were a single transaction.

You then work out the tax attributable to each individual transaction by applying this fraction:

individual transaction consideration divided by total consideration for all linked transactions

That fraction is multiplied by the total tax on the linked set.

The calculation method set out in the guidance is:

• add the consideration for all linked transactions to get the total consideration
• apply the relevant LBTT rates and bands to that total to get the total tax chargeable
• divide the consideration for the individual transaction by the total consideration
• multiply the total tax by that fraction to get the tax for that individual transaction

The guidance also notes that there may be small differences caused by rounding.

What this means in practice

The practical effect is often that more tax becomes payable than if each transaction were taxed separately. That is because combining the consideration may push more of the total into higher LBTT bands.

Once that combined tax figure has been established, each transaction bears a proportion of the total tax based on its share of the total consideration. So a transaction representing one-third of the total consideration will usually bear one-third of the total LBTT.

This matters for returns and payment. Even though the transactions are linked, the tax still has to be attributed to each individual transaction using the statutory formula.

The official example uses non-residential rates and bands. The same calculation structure applies generally, but you must use the rates and bands appropriate to the type of transaction being taxed.

How to analyse it

A sensible way to approach the calculation is:

• First, confirm whether the transactions are in fact linked. The source material assumes that point has already been decided.
• Identify every transaction in the linked series that must be brought into account.
• Work out the chargeable consideration for each transaction.
• Add those figures together to get the total linked consideration.
• Apply the correct LBTT rates and bands to that total as though it were one transaction.
• For each individual transaction, calculate its proportion of the total consideration.
• Apply that proportion to the total LBTT figure.
• Check whether any minor rounding adjustment is needed so that the amounts allocated across the transactions match the overall tax.

Questions to ask include:

• Have all linked transactions been identified?
• Are you using the correct rates and bands for the type of property involved?
• Have you used the chargeable consideration for each transaction, rather than simply the headline price?
• Have you allowed for rounding consistently?

Example

Illustration based on the official guidance:

A buyer purchases three plots from the same seller in three separate transactions on the same day. The transactions are linked.

• Plot 1: £100,000
• Plot 2: £200,000
• Plot 3: £300,000

Total linked consideration: £600,000.

Using the non-residential LBTT rates and bands given in the source material, the total tax on £600,000 is:

• first £150,000 at 0% = £0
• next £100,000 at 1% = £1,000
• remaining £350,000 at 5% = £17,500

Total LBTT: £18,500.

You then apportion that £18,500 across the three transactions:

• Plot 1: £100,000 ÷ £600,000 × £18,500 = about £3,083
• Plot 2: £200,000 ÷ £600,000 × £18,500 = about £6,166
• Plot 3: £300,000 ÷ £600,000 × £18,500 = £9,250

Those figures may not add up exactly to the total because of decimal rounding. The official guidance flags this point expressly.

Why this can be difficult in practice

The calculation itself is fairly mechanical once the linked status of the transactions is clear. The harder issues usually arise earlier:

• whether transactions are linked at all
• which transactions belong in the linked group
• what counts as the chargeable consideration for each transaction
• which rates and bands should be applied to the combined total

Another practical difficulty is that the tax is calculated on the combined total but then allocated back to each transaction. That can feel counterintuitive, especially where one transaction on its own would have fallen wholly or largely within a lower band.

Rounding can also create minor discrepancies. The guidance does not present this as changing the underlying method, only as a possible arithmetic consequence when splitting the total tax across separate transactions.

Key takeaways

• If transactions are linked, LBTT is first calculated on the combined consideration as if there were one transaction.
• The tax for each individual transaction is then worked out by reference to that transaction’s share of the total consideration.
• The main judgment issue is usually whether the transactions are linked in the first place; once that is established, the statutory calculation is formula-based.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: LBTT Guidance: Calculating Tax for Linked Property Transactions

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