Do limited companies pay the 5% higher SDLT rate on a buy-to-let property?

Introduction

Many landlords ask whether buying a residential investment property through a limited company reduces Stamp Duty Land Tax (SDLT). In practice, the answer is often the opposite. Where a company buys a straightforward residential buy-to-let property, the higher rates for additional dwellings usually apply.

This issue commonly arises where a buyer is looking at a normal house or flat to let out commercially and wants to know whether using a special purpose vehicle or other company structure changes the SDLT result.

The Question

A prospective buyer is considering purchasing a standard residential property as a buy-to-let investment for around £570,000. The buyer wants to use a limited company structure and asks whether the 5% higher SDLT rate would apply, and whether there is any legitimate way to reduce or avoid that extra charge.

The property is described as an ordinary dwelling with no obvious mixed-use or commercial features.

Nick’s Explanation

Nick’s view was clear. If the purchase is a buy-to-let acquisition by a limited company, and the property is simply a normal dwelling with no non-residential element, then the 5% higher rates are very likely to apply.

In anonymised form, his explanation was essentially this: if the property is not mixed-use, not partly non-residential, and not in such poor condition that it is genuinely unsuitable for use as a dwelling, there is no obvious route to avoid the higher residential SDLT rates for a company purchase.

He also highlighted examples of cases where the result might differ, such as:

• a shop with living accommodation above,
• a house bought with agricultural land or other non-residential land, or
• a property in such poor condition that it is not suitable for use as a dwelling at the effective date of the transaction.

Once it was confirmed that the property was just an ordinary terraced house with none of those features, Nick’s conclusion remained that the higher rate could not realistically be avoided on the facts given.

The Law

SDLT on land transactions in England is charged under Finance Act 2003. Residential purchases are taxed under the residential rate structure. Where the buyer is a company and the subject matter is a single dwelling, the higher rates for additional dwellings will usually apply.

The higher rates are found in Schedule 4ZA to Finance Act 2003. Broadly, a company purchasing a dwelling is generally treated as buying an additional dwelling, so the higher rates apply automatically unless a specific exception is available.

In practical terms, that means the residential SDLT bands are increased by the higher rates surcharge. The user’s question referred to a 5% higher rate, and this article addresses the position on that basis.

There are, however, situations where residential higher rates may not apply in the way a buyer expects:

• if the property is not residential property for SDLT purposes,
• if the transaction is mixed-use, so non-residential or mixed-use rates apply instead,
• if a specific statutory relief applies, or
• if what is being acquired is not suitable for use as a dwelling at the effective date.

The last category has become harder to establish. In uninhabitable or not suitable for use cases, the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Analysis

The SDLT analysis usually works in the following order.

First, identify the buyer. If the buyer is a limited company, that matters immediately because company purchasers of dwellings are usually within the higher rates regime.

Second, identify what is being bought. If it is a normal house or flat intended to be let on an assured shorthold tenancy or similar commercial residential letting, that is still a dwelling for SDLT purposes. The fact that it is an investment property does not take it out of the residential rules.

Third, ask whether there is any non-residential element. For example:

• commercial premises included in the title,
• substantial non-residential land,
• agricultural land,
• offices, workshops or storage land forming part of the transaction.

If there is a genuine non-residential element, the transaction may be mixed-use, which can move it into the non-residential or mixed-use SDLT regime. But where the purchase is simply a house on an ordinary residential plot, that argument is usually unavailable.

Fourth, consider whether the property is truly unsuitable for use as a dwelling at completion. Buyers sometimes assume that disrepair, dated condition, lack of modern fittings or a need for renovation is enough. Usually it is not. The courts have taken a stricter approach. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the condition threshold is relatively high. A property generally needs to be genuinely incapable of use as a dwelling at the effective date, not merely unattractive, run down, or in need of works.

Fifth, consider whether any SDLT relief applies. Reliefs do exist in some situations, but they are specific and fact-sensitive. Examples elsewhere in SDLT law include group relief, multiple dwellings relief in historic cases where still relevant to the transaction timing, charities relief, and certain partnership or reconstruction provisions. However, none of those arise merely because a buyer chooses to use a company to acquire a standard buy-to-let property.

Applying that framework here, the property is an ordinary residential dwelling. There is no mixed-use element, no non-residential component, and no suggestion of a condition issue serious enough to take it outside the dwelling definition. On those facts, the company purchase remains a residential acquisition subject to the higher rates.

Outcome

If a limited company buys a straightforward residential buy-to-let property, the higher SDLT rates will normally apply. On the facts described, there is no obvious mitigation simply from using a company structure.

In other words, buying through a company does not avoid the surcharge for an ordinary residential investment purchase. If anything, for a company buyer of a dwelling, the higher rates position is usually the default result.

Practical Steps

If you are assessing a similar purchase, the sensible next steps are:

• confirm exactly what is included in the title and contract, including any land, outbuildings or commercial elements,
• check whether the property is unquestionably residential at the effective date,
• do not assume that disrepair makes a property non-residential, especially after Mudan,
• ask whether any genuine statutory relief applies to your specific structure,
• obtain the SDLT calculation before exchange so the transaction remains financially viable,
• ensure the analysis is based on the real facts and documents, not estate agent descriptions or assumptions.

Where the property is just a normal house or flat being bought by a company to let out, the safest working assumption is that the higher residential rates apply unless a specialist review identifies a real exception.

Conclusion

A limited company buying a standard residential buy-to-let property will usually pay SDLT at the higher rates. Unless the transaction is mixed-use, non-residential, or falls within a specific relief, there is generally no lawful way to sidestep that result. For properties said to be uninhabitable, the bar is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Legal References Used

• Finance Act 2003
• Finance Act 2003, Schedule 4ZA
• Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799

This page was last updated on 22 March 2026.

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