Guide on Calculating Chargeable Interest Transfers to Partnerships Under Para10 Rules

SDLT when property is transferred into a partnership

When a property is transferred into a partnership, special SDLT rules may apply. If paragraph 10 applies, SDLT is charged not on the stated price or the full market value, but on a reduced share of the property’s market value. That reduced amount is worked out using the formula market value multiplied by (100 minus SLP)%, where SLP means the sum of the lower proportions calculated under paragraph 12.

• The rule applies to certain transfers of chargeable property into a partnership and is designed to reflect the transferor’s retained economic interest through their partnership share.
• If paragraph 10 applies, the chargeable consideration is based on a proportion of market value rather than simply the amount shown in the transaction documents.
• The key formula is: chargeable consideration = market value × (100 − SLP)%.
• A higher SLP produces a lower chargeable consideration, so calculating SLP correctly under paragraph 12 is essential.
• In practice, the main issues are confirming that paragraph 10 applies, establishing the correct market value, and working out SLP using the statutory method.
• For example, if market value is £1,000,000 and SLP is 40, SDLT is calculated on £600,000 rather than the full £1,000,000.

Scroll down for the full analysis.

SDLT on transferring property into a partnership: how the market value rule is reduced

This page explains a specific SDLT rule that can apply when land or other chargeable property is transferred into a partnership. The rule matters because, if it applies, SDLT is not charged simply by looking at the stated price. Instead, the chargeable consideration is based on a reduced proportion of the property’s market value.

What this rule is about

Transfers of property into partnerships have special SDLT rules. The purpose is to work out how much of the property’s value is, in substance, moving to other partners, and how much is still effectively retained by the person transferring it through their partnership share.

The source material deals with the case where paragraph 10 applies. In that situation, the chargeable consideration is not the full market value of the property. Instead, SDLT is charged on only part of that market value.

The size of that part depends on a figure called the sum of the lower proportions, usually shortened to SLP.

What the official source says

HMRC’s manual says that where paragraph 10 applies to a transfer of a chargeable interest to a partnership, the chargeable consideration is calculated as a proportion of the market value of the chargeable interest transferred.

That proportion is:

(100 − SLP)%

So the starting point is the market value of the property being transferred, and then that value is reduced by reference to SLP.

The manual also says that SLP, the sum of the lower proportions, is worked out using the steps in paragraph 12.

This means the key questions are:

• Does paragraph 10 apply to the transfer?
• What is the market value of the chargeable interest transferred?
• What is the SLP under paragraph 12?

What this means in practice

If this rule applies, SDLT is linked to the market value of the property, not just whatever consideration is written into the transaction documents.

But the whole market value is not automatically taxed. The legislation reduces the taxable amount by the SLP percentage. In broad terms, the higher the SLP, the lower the chargeable consideration.

This reflects the idea that where the transferor already has an interest in the partnership, they may still retain an economic interest in the property after it is transferred in. The rule therefore taxes only the part treated as passing away from them.

In practical terms, this can produce a very different SDLT result from an ordinary land transfer between unconnected parties.

How to analyse it

A sensible way to approach the issue is as follows.

• Identify the transaction clearly. Is there a transfer of a chargeable interest to a partnership?
• Check whether paragraph 10 is the provision that applies. The source material assumes that it does, but that must be established first.
• Determine the market value of the chargeable interest transferred. The calculation under this rule is based on market value.
• Work out the SLP using the paragraph 12 method. This is essential because the taxable proportion is calculated by deducting SLP from 100.
• Apply the formula: chargeable consideration = market value × (100 − SLP)%.

The rule is mechanical once the inputs are known, but the inputs themselves may require careful analysis.

Example

This is only an illustration of the formula described in the source material.

Assume a property with a market value of £1,000,000 is transferred to a partnership, and paragraph 10 applies. Assume also that, after applying the paragraph 12 steps, the SLP is 40.

The chargeable consideration would then be 60% of market value:

£1,000,000 × (100 − 40)% = £600,000

SDLT would then be calculated by reference to £600,000, not the full £1,000,000.

Why this can be difficult in practice

The short HMRC text gives the formula, but not the underlying detail. In practice, the difficult parts are usually not the arithmetic but the legal classification and the inputs to the calculation.

• Whether paragraph 10 applies at all may depend on the structure of the transaction.
• Market value may need careful evidence, especially where the property interest is unusual or subject to rights or restrictions.
• SLP is not a simple commercial estimate. It has to be computed using the statutory method in paragraph 12.
• Partnership arrangements can be complex, especially where partners’ shares are not straightforward or change over time.

So although the formula itself is simple, applying it correctly depends on getting the legal and factual analysis right first.

Key takeaways

• If paragraph 10 applies, SDLT is based on a proportion of market value, not automatically on the stated price.
• The taxable proportion is (100 − SLP)%, so the SLP calculation is central.
• The main practical tasks are confirming that paragraph 10 applies, establishing market value, and computing SLP under paragraph 12.

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 Chargeable Interest Transfers to Partnerships Under Para10 Rules

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