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 reclaim 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 damp, mould, serious neglect, or other defects and the buyer believes it was not fit to live in at the time of completion.

The key issue is whether the property was genuinely unsuitable for use as a dwelling on the effective date of the transaction. That is a technical legal test, and the 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 able to reclaim SDLT paid on a purchase in England or Northern Ireland. The purchase took place within the last four years. At the time of purchase, the property had condition problems such as damp, mould, or general disrepair. The buyer also paid the 3% higher rates of SDLT and wants to know whether the condition of the property could support a refund claim.

Nick’s Explanation

Nick’s explanation can be summarised like this: a refund is not available simply because a property was run-down, unattractive, or needed substantial works. The legal question is narrower. The buyer must show that, at the date of purchase, the building was not suitable for use as a dwelling.

In anonymised terms, his point is that poor condition may be relevant, but it is not enough on its own. Damp, mould, neglect, outdated kitchens or bathrooms, and the need for refurbishment do not automatically take a property outside the SDLT rules for dwellings. A claim only has real prospects where the defects were so serious that the property could not realistically be used as a home at completion.

That approach is consistent with recent case law. In particular, the Court of Appeal in Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799 confirmed that the threshold for showing a property was not suitable for use as a dwelling is relatively high.

The Law

SDLT is charged under the Finance Act 2003. Different rates can apply depending on whether the subject matter of the transaction is residential property, non-residential property, or mixed property.

For SDLT purposes, a building is generally treated as residential property if it is used or suitable for use as a dwelling, or is in the process of being constructed or adapted for such use. The higher rates for additional dwellings are imposed by Schedule 4ZA to the Finance Act 2003 where the statutory conditions are met.

Where a buyer argues that a property was not suitable for use as a dwelling, the point is important because it may affect whether the property was residential at all, and in turn whether the higher rates applied.

HMRC and the courts look at the position at the effective date of the transaction, usually completion. The test is objective. It is not enough that the buyer intended to renovate, or that a lender, surveyor, or insurer used strong language about condition. The question is whether the property was, in fact, suitable for use as a dwelling at that time.

Analysis

There are several steps in analysing this type of SDLT reclaim.

First, check the time limit. In many SDLT cases, an amendment or refund claim is subject to strict time limits. If the transaction took place within the last four years, it may still be worth reviewing urgently, but the exact route depends on the procedural history of the return and payment.

Second, identify what was actually bought. If the transaction involved only a dwelling, the starting point is that residential SDLT rates applied. If there was also non-residential land or another non-residential element, mixed-use treatment may need to be considered separately.

Third, assess the condition of the property at completion. Evidence matters. Typical evidence includes the survey, photographs, contractor reports, invoices, mortgage valuation material, environmental reports, and any contemporaneous correspondence showing the state of the building.

Fourth, distinguish between disrepair and true unsuitability for use as a dwelling. A property can still be a dwelling even if it has serious damp, mould, broken fittings, outdated services, or requires major refurbishment. Many properties are unpleasant or inconvenient to occupy but still remain legally suitable for use as dwellings.

Fifth, consider whether the defects crossed the legal threshold. Examples that may assist a claim are cases where there was no functioning kitchen or bathroom together with wider structural or service failures, where the property lacked basic facilities for occupation, or where the condition created such fundamental problems that normal residential use was not realistically possible. Even then, each case turns on its own facts.

Sixth, apply the current appellate guidance. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the condition threshold is now relatively high. That means claims based only on damp, mould, neglect, cosmetic deterioration, or the need for renovation are less likely to succeed unless the evidence shows the property had gone beyond disrepair and was genuinely unsuitable for use as a dwelling on completion.

Seventh, consider whether the challenge is really about the 3% surcharge or about the whole residential classification. In practice, many claims are framed as a reclaim of the higher rates, but the legal argument often depends on establishing that the property was not residential property at all on the relevant date.

Outcome

A buyer may have grounds to explore an SDLT reclaim if the purchase was recent enough and the property’s condition at completion was exceptionally serious. But a claim is not likely to succeed merely because the property had damp, mould, neglect, or needed substantial renovation.

The practical takeaway is that the legal threshold is demanding. After Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, a property must usually be shown to have been genuinely unsuitable for use as a dwelling, not just in poor or distressed condition.

Practical Steps

If you are assessing your own position, the sensible next steps are:

• Check the completion date and whether you are still within the relevant SDLT time limits.
• Obtain the SDLT return and confirm exactly what SDLT was paid, including whether the 3% higher rates applied.
• Gather contemporaneous evidence of condition at completion, including survey reports, photographs, builder assessments, and invoices.
• Focus on defects affecting basic habitability, not just disrepair or refurbishment needs.
• Review the facts against the current legal test for suitability for use as a dwelling.
• Consider whether the issue is residential classification, mixed-use treatment, or the higher rates specifically.
• Take advice before making a claim, particularly because HMRC scrutinises these cases closely and the case law has become less favourable to weak habitability arguments.

Conclusion

You cannot usually reclaim the 3% SDLT surcharge just because a property was shabby, neglected, or in need of work. The question is whether it was objectively unsuitable for use as a dwelling at completion. That is now a relatively high threshold, especially following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. If the defects were truly fundamental, the case may still be worth reviewing, but careful evidence is essential.

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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