Can a seller pay part of the buyer’s SDLT as a property sale incentive?

Introduction

People often ask whether a seller can help a buyer by contributing towards Stamp Duty Land Tax (SDLT), especially where the property is an investment property and the seller wants to make the deal more attractive. Similar incentives are sometimes seen on new-build transactions, so it is natural to wonder whether the same approach works in an ordinary resale.

The short answer is that a seller can agree to pay part of the buyer’s SDLT as a commercial incentive, but that does not usually reduce the SDLT charged on the transaction. The tax is still generally calculated by reference to the full chargeable consideration for the property.

The Question

A seller of an investment property wanted to know whether they could offer to pay part of the purchaser’s SDLT in order to encourage another investor to buy the property. The aim was to reduce the buyer’s effective cost of purchase and make the transaction more appealing.

Nick’s Explanation

Nick’s explanation was that the legal starting point is the SDLT legislation in the Finance Act 2003. He noted that SDLT applies to a land transaction and that the amount of tax is based on the chargeable consideration for that transaction.

In anonymised form, his key point was:

“If the seller agrees to cover part of the purchaser’s SDLT, that does not reduce the SDLT liability on the purchase. SDLT is still calculated on the full agreed price. The seller’s contribution may be a lawful commercial incentive, but it does not change the chargeable consideration merely because the parties describe it as help with stamp duty.”

He also pointed out that the type of property matters. Residential, non-residential and mixed-use property can be taxed differently, so the precise SDLT position depends first on the nature of the property being sold.

The Law

SDLT is charged under Part 4 of the Finance Act 2003.

Section 42 provides that SDLT is charged on land transactions. Section 43 explains that a land transaction involves the acquisition of a chargeable interest, which includes interests such as freehold and leasehold estates.

The tax is charged by reference to the chargeable consideration for the transaction. Section 50 and Schedule 4 are central here. Broadly, chargeable consideration includes money or money’s worth given directly or indirectly for the subject matter of the transaction.

In practical terms, SDLT looks at the real value passing between the parties in connection with the purchase. It is not enough simply to relabel part of the deal as a contribution towards costs if, in substance, the buyer is still acquiring the property for the agreed price and the seller is just offering a side incentive.

Where a seller agrees to pay an amount towards the buyer’s SDLT, that arrangement does not normally reduce the amount on which SDLT is assessed. Instead, the transaction is still considered by reference to the actual purchase consideration under the contract and the statutory rules.

Analysis

The issue can be broken down into a few steps.

First, identify the property type. If the property is residential, residential SDLT rates apply. If it is non-residential or mixed-use, different rates may apply. If the buyer already owns other dwellings, higher residential rates may also need to be considered where relevant.

Second, identify the agreed purchase price and the full economic bargain between the parties. If the buyer agrees to buy the property for a stated amount, that figure is usually the starting point for SDLT.

Third, consider the seller’s proposed incentive. If the seller says, for example, “I will pay £5,000 towards your SDLT”, that may help the buyer financially, but it does not usually alter the chargeable consideration for SDLT purposes. It is better understood as a separate incentive attached to the sale rather than a reduction in the taxable price.

Fourth, record the arrangement properly. If the parties want the seller to contribute funds on completion or by way of allowance, the contract documentation should state clearly what is happening. That helps avoid confusion between the commercial deal and the tax analysis.

For example, if a property is sold for £300,000 and the seller agrees to contribute £5,000 towards the buyer’s SDLT, the SDLT position does not usually become “tax on £295,000”. The chargeable consideration remains £300,000 unless the true contractual purchase price itself is reduced to a lower figure and the transaction is genuinely structured that way.

That distinction matters. A genuine reduction in the purchase price is one thing. A seller-funded incentive described as help with SDLT is another. The latter does not usually reduce the SDLT base.

Outcome

A seller can lawfully offer to pay part of the buyer’s SDLT as an incentive to complete the sale. However, that does not normally reduce the SDLT payable on the transaction. SDLT is generally still calculated on the full agreed purchase price or other chargeable consideration under the statutory rules.

So, as a commercial matter, the incentive may still be useful. As a tax-saving mechanism for SDLT, it will usually not achieve the hoped-for result.

Practical Steps

If you are considering this type of incentive, the sensible steps are:

• Confirm whether the property is residential, non-residential or mixed-use.
• Work out the SDLT position using the correct rates for that property type.
• Decide whether you are offering a true price reduction or a separate seller-funded incentive.
• Make sure the contract and completion statements record the arrangement clearly and consistently.
• Check whether any other SDLT rules apply, including higher rates for additional dwellings if the property is residential.
• Ensure the buyer understands that a seller contribution towards SDLT does not usually reduce the SDLT calculation itself.

Conclusion

Yes, a seller can offer to pay part of a buyer’s SDLT as an incentive. But in most cases that does not reduce the SDLT charged on the purchase. The tax is still generally assessed on the full chargeable consideration for the transaction, so the arrangement should be treated as a commercial sweetener rather than an SDLT saving.

Legal References Used

• Finance Act 2003, Part 4
• Finance Act 2003, section 42
• Finance Act 2003, section 43
• Finance Act 2003, section 50
• Finance Act 2003, Schedule 4

This page was last updated on 22 March 2026.

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