Can you reclaim the 3% SDLT surcharge if a property was in poor condition when you bought it?

Introduction

Many buyers ask whether they can recover Stamp Duty Land Tax (SDLT), especially the 3% higher rates surcharge, where a property was in very poor condition when purchased. This usually comes up where the dwelling had serious problems such as damp, mould, disrepair or neglect at the date of completion.

The key issue is whether the property was still a “dwelling” for SDLT purposes when it was bought. If it was not suitable for use as a dwelling at that time, different SDLT rules may apply and, in some cases, a refund claim may be possible. However, the legal threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

The Question

A buyer wants to know whether they may be entitled to an SDLT reclaim where:

• the purchase took place within the last four years;
• the property was in England or Northern Ireland;
• the property had serious condition issues at the time of purchase, such as damp, mould or neglect; and
• the buyer paid the 3% higher rates of SDLT.

The practical question is whether poor condition at completion can mean the property was not a dwelling for SDLT purposes, so that the higher residential rates should not have applied.

Nick’s Explanation

Nick’s explanation can be summarised in this way: a refund is not available simply because a property needed work or was unpleasant to live in. The critical question is whether, at the effective date of the transaction, the building was genuinely unsuitable for use as a dwelling under the SDLT legislation.

In anonymised terms, his point is that buyers sometimes assume that visible defects such as damp, mould, outdated interiors, missing fittings or general neglect automatically create a reclaim. That is not the test. The test is stricter and depends on the actual state of the property at completion.

Where a property remained capable of functioning as a home, even if in poor or unattractive condition, HMRC may still treat it as residential property. By contrast, if the defects were so serious that the building could not realistically be used as a dwelling on the purchase date, there may be scope to argue that it was not residential property for SDLT purposes.

That said, any “unsuitable for use” argument must now be assessed carefully in light of Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, which confirms that the threshold is relatively high.

The Law

SDLT is charged under the Finance Act 2003. For transactions in England and Northern Ireland, the legislation distinguishes between:

• residential property, including a building used or suitable for use as a dwelling; and
• non-residential or mixed property.

The higher rates for additional dwellings are imposed by Schedule 4ZA to the Finance Act 2003. Broadly, the 3% surcharge can apply where a purchaser buys a major interest in a dwelling and already owns another dwelling, subject to the detailed statutory conditions and exceptions.

A central issue in many SDLT reclaim cases is whether the purchased property was a “dwelling” at the effective date of the transaction. The legislation looks to whether the building was used or suitable for use as a dwelling. This is a fact-sensitive question.

Case law has established that suitability is judged at the time of purchase, not by reference to what the buyer later did to renovate or improve the property. A building does not stop being a dwelling merely because it is old, run-down, vacant, or in need of repair. The defects must be sufficiently serious to take it outside the statutory concept of a dwelling.

Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the courts have made clear that the condition threshold in “not suitable for use” cases is now relatively high. Serious disrepair alone will not always be enough.

Analysis

The issue can be analysed in stages.

First, identify the exact property condition on the completion date. The relevant question is not whether the property was attractive, mortgageable, modern, or immediately comfortable. The question is whether it was suitable for use as a dwelling at all.

Secondly, separate ordinary disrepair from fundamental failure. Problems such as damp, mould, outdated kitchens or bathrooms, worn finishes, broken plaster, or general neglect may support the buyer’s case on the facts, but they do not automatically mean the property was unsuitable for use as a dwelling. Many properties with those defects still remain dwellings in law.

Thirdly, consider whether the defects prevented normal residential occupation in any real sense. Relevant matters may include whether the property lacked basic facilities, had structural issues, had no functioning sanitation, no safe water or electricity, or had hazards so severe that occupation as a home was not realistically possible at the purchase date.

Fourthly, look at the evidence available from the time of purchase. The strongest evidence usually includes:

• the survey or valuation report;
• photos and videos taken before or at completion;
• contract papers and auction particulars;
• builder or engineer reports;
• lender correspondence, especially if lending was refused because of condition;
• invoices and schedules of works showing the scale of remedial work needed immediately after purchase.

Fifthly, apply the legal threshold carefully. After Mudan, the courts are unlikely to accept a reclaim merely because major refurbishment was needed. The threshold is now relatively high. The property must generally have been in a state going beyond poor condition and into genuine unsuitability for use as a dwelling.

Sixthly, if the property was not a dwelling at completion, the SDLT treatment may have been different from the position originally reported on the SDLT return. In that situation, an amendment or repayment claim may be possible, subject to the statutory time limits and the buyer’s wider factual position.

Finally, timing matters. A buyer asking about a reclaim within four years of the filing date may still be within the normal amendment or overpayment relief framework, depending on the procedural route available on the facts.

Outcome

A buyer may be able to reclaim SDLT, including the 3% higher rates element, if the property was not suitable for use as a dwelling when purchased. But poor condition alone is not enough. The legal test is stricter than many buyers expect, and the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

In practical terms, a reclaim is most likely to succeed where the property’s defects were so serious that it could not realistically function as a home at the completion date, and where there is strong contemporaneous evidence to prove that.

Practical Steps

If you are assessing whether you may have an SDLT reclaim, the sensible next steps are:

1. Confirm the purchase date and whether the transaction was in England or Northern Ireland.
2. Obtain a copy of the SDLT return and calculation to check whether the 3% higher rates were paid.
3. Gather contemporaneous evidence of the property’s condition at completion, including surveys, photos, videos, valuations and contractor reports.
4. Identify whether the defects were cosmetic, substantial, or so serious that the building could not realistically be used as a dwelling.
5. Review whether the property had functioning essentials such as sanitation, water, electricity and safe access at the purchase date.
6. Check the relevant time limits for amending the SDLT position or making a repayment claim.
7. Assess the case against the current legal authorities, especially Mudan, rather than relying on older marketing-style checklists based only on damp, mould or neglect.

Conclusion

You cannot assume that a run-down property creates an automatic SDLT refund. The real legal question is whether the property was suitable for use as a dwelling at the date of purchase. Since Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, that threshold is relatively high, so any reclaim needs careful fact-based analysis and strong evidence.

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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