Guide on Calculating Lower Proportions in Partnership Property Transfers

SDLT on transferring property into a partnership: calculating the sum of the lower proportions

When a property is transferred into a partnership, special SDLT rules apply. In the simple example given, A owns the whole property before the transfer and then becomes entitled to 30% of the partnership profits afterwards, while the other partners are not connected with A. In that case, the “sum of the lower proportions” is 30%, and that figure is used as part of the wider Schedule 15 SDLT calculation.

• Paragraph 12 of Schedule 15 looks at how much of the property interest is effectively retained by the transferor and any connected persons through the partnership.
• A is the only relevant owner because A alone owned the property before the transfer and is a partner immediately afterwards.
• B and C are ignored in this example because they did not own the property before the transfer and are not connected with A.
• A owned 100% before the transfer but only has a 30% partnership profit share after it, so the lower proportion is 30%.
• As there is only one relevant owner and one corresponding partner, the sum of the lower proportions is also 30%.
• This figure does not by itself give the final SDLT due; it is only one step in the full Schedule 15 partnership rules.

Scroll down for the full analysis.

SDLT when a property is transferred into a partnership: working out the “sum of the lower proportions”

This page explains part of the special SDLT rules that apply when land is transferred to a partnership. The specific point here is how to calculate the “sum of the lower proportions” under paragraph 12 of Schedule 15 in a simple case: one partner transfers property they own personally into a partnership, and the other partners are not connected with that transferor. This matters because that calculation feeds into how much of the transfer is treated as chargeable for SDLT purposes.

What this rule is about

Transfers of land to a partnership are not dealt with in the same way as an ordinary sale between unconnected persons. Schedule 15 to the SDLT legislation contains special partnership rules. One of the key concepts in those rules is the “sum of the lower proportions”.

The purpose of this calculation is to identify how much of the property, in economic terms, is still attributable to the transferor and any connected persons once the property has moved into the partnership. In broad terms, the higher that retained economic stake is, the larger the “sum of the lower proportions” will be.

The source material works through a particular example under paragraph 12. It is not setting out the whole SDLT charge from start to finish. It is showing one component of the statutory calculation.

What the official source says

The official example starts with these facts:

• A owns a chargeable interest outright before the transaction.
• A transfers it to a partnership.
• The partnership has three partners: A, B and C.
• B and C are not connected with A for the purposes of Part 3 of Schedule 15.
• Immediately after the transfer, A is entitled to 30% of the partnership’s income profits.

Applying paragraph 12 step by step, HMRC’s analysis is:

• A is a “relevant owner” because A owned a proportion of the property immediately before the transaction and is a partner immediately after it.
• No one else is a relevant owner, because no one else owned any part of the property before the transfer.
• A is also A’s own “corresponding partner”, because A is both the relevant owner and a partner immediately after the transaction.
• B and C are not corresponding partners in relation to A, because although they are partners immediately after the transaction, they are neither the relevant owner nor connected with the relevant owner.
• Since A owned 100% of the property before the transfer, 100% is apportioned to A at step 3.
• A’s partnership share immediately after the transfer is 30%.
• The “lower proportion” is therefore 30.
• As there is only one relevant owner and one corresponding partner, there is nothing further to add up, so the “sum of the lower proportions” is 30.

What this means in practice

In this kind of case, the legislation is looking at the overlap between:

• what the transferor owned before the transaction, and
• what stake that same person, or connected persons, has in the partnership immediately after the transaction.

Here, A owned all of the property before the transfer, but after the transfer A only has a 30% partnership profit share. Because B and C are not connected with A, their shares are ignored for this paragraph 12 exercise. So the only retained stake that counts is A’s own 30% interest.

The practical effect is that the “sum of the lower proportions” in this example is 30, not 100. That figure is then used elsewhere in the Schedule 15 charging rules.

This is important because a reader might assume that if A transfers property into a partnership of which A is a member, the whole transfer is ignored for SDLT because A still has some interest in the property indirectly through the partnership. That is not what this calculation does. The legislation measures the retained stake precisely, and in this example it is limited to A’s 30% partnership share.

How to analyse it

For a transfer of land into a partnership, this example suggests a clear way to approach paragraph 12:

• First, identify who owned the chargeable interest immediately before the transaction.
• Then ask which of those persons are partners immediately after the transaction. Those persons may be “relevant owners”.
• For each relevant owner, identify the “corresponding partners”. This will include the relevant owner if they are a partner immediately after the transfer, and may also include connected persons if the legislation treats them as corresponding partners.
• Work out what proportion of the property was owned by the relevant owner immediately before the transfer.
• Compare that with the relevant partnership share immediately after the transfer.
• The “lower proportion” is the lower of those figures.
• If there is more than one relevant owner or more than one corresponding partner, add the lower proportions together to reach the total.

In the HMRC example, this process is straightforward because:

• there is only one pre-transfer owner,
• that owner becomes a partner after the transfer, and
• the other partners are not connected with the transferor.

That means the calculation focuses only on A’s own retained partnership share.

Example

Illustration: A owns a freehold property personally. A transfers it into a partnership with B and C. After the transfer, A is entitled to 30% of the partnership’s income profits. B and C are not connected with A.

On these facts:

• A was entitled to 100% of the property before the transfer.
• A is the only relevant owner.
• A is the only corresponding partner for this purpose.
• A’s relevant partnership share after the transfer is 30%.
• The lower proportion is therefore 30%.
• The sum of the lower proportions is also 30%.

This does not, by itself, tell you the final SDLT liability. It tells you the paragraph 12 figure that is then used in the wider Schedule 15 computation.

Why this can be difficult in practice

The example is simple, but real cases are often less tidy.

One difficulty is identifying who counts as connected. The source material makes clear that B and C are ignored here because they are not connected with A. If there were connected persons in the partnership, the corresponding partner analysis could be different.

Another difficulty is identifying the correct partnership share immediately after the transaction. The example uses A’s entitlement to 30% of the income profits. In practice, partnership arrangements can be more complex, and the legislation may require careful attention to how shares are defined at the relevant time.

A further point is that this paragraph 12 exercise is only one stage in the Schedule 15 rules. A reader should not treat the “sum of the lower proportions” as the same thing as the final taxable proportion or the final SDLT due. It is an input into the wider statutory calculation.

Finally, this is an HMRC manual example. It is useful for understanding HMRC’s reading of the legislation, but the legal effect ultimately comes from Schedule 15 itself.

Key takeaways

• When a person transfers property they own into a partnership, paragraph 12 looks at how much of that interest is effectively retained through the partnership.
• In HMRC’s example, where A owned 100% before the transfer but has a 30% partnership share after it, and the other partners are not connected, the sum of the lower proportions is 30.
• This figure is part of the special SDLT partnership calculation, not the whole SDLT analysis by itself.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Guide on Calculating Lower Proportions in Partnership Property Transfers

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