Can you reclaim SDLT if the property was uninhabitable when you bought it?

Introduction

Many buyers ask whether they can reclaim Stamp Duty Land Tax (SDLT) if a property was in very poor condition at the date of purchase. This usually comes up where the buyer paid SDLT on the basis that the property was a dwelling, but later believes it was not fit to be lived in.

The issue matters because SDLT rates for residential property can be higher than the rates that would apply if the property was not treated as residential. However, the legal test is strict. A property does not stop being a dwelling simply because it needs repair, modernisation or substantial refurbishment.

Recent case law has made these claims harder. In particular, the condition threshold in an uninhabitable or not suitable for use case is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

The Question

A buyer purchased a property in 2021 in poor condition and wants to know whether it is possible to reclaim SDLT on the basis that the property was uninhabitable at the time of completion.

The buyer wants to know what information is needed to assess whether a reclaim is still possible and whether the condition of the property at the date of purchase could take it outside the residential SDLT rules.

Nick’s Explanation

Nick’s explanation was that the starting point is evidence. To assess whether there is any realistic SDLT reclaim, the key information would include:

• the purchase price,
• the amount of SDLT paid,
• photographs showing the condition of the property at the date of purchase, and
• details of the property itself.

He also noted that a purchase made in 2021 may still fall within the normal four-year amendment window, depending on timing, but that recent case law has materially changed the position on what counts as an unsuitable dwelling.

In anonymised form, his point was essentially this: a claim may still be in time, but success depends on strong evidence and the legal threshold for showing that a property was not suitable for use as a dwelling has become significantly harder to meet.

The Law

SDLT is charged under the Finance Act 2003. For these cases, the key question is whether the property was “residential property” at the effective date of the transaction, usually completion.

Under section 116 Finance Act 2003, residential property includes:

• a building that is used or suitable for use as a dwelling, or is in the process of being constructed or adapted for such use, and
• land that forms part of the garden or grounds of such a building.

If a building is suitable for use as a dwelling at completion, residential SDLT treatment usually applies even if the property is dated, damaged or in need of extensive works.

The key legal dispute in many reclaim cases is whether the building was truly not “suitable for use as a dwelling” at the effective date. That is a factual question judged objectively on the actual condition of the property at that time.

The courts have repeatedly shown that the test is not satisfied merely because:

• the property lacked modern fittings,
• repairs were needed,
• there was damp, disrepair or neglect,
• the buyer intended major renovation, or
• the property was inconvenient or unpleasant to occupy.

In an uninhabitable or not suitable for use case, the condition thresholds are now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Analysis

The analysis usually works in five steps.

First, identify the filing position originally taken. If SDLT was paid on the basis that the property was residential, the buyer must show that this was wrong at the date of completion.

Second, focus on the property’s actual condition on that date. Later works, later surveys or later deterioration are not the test. The relevant question is what the buyer acquired at completion.

Third, examine whether the defects were so serious that the building was not suitable for use as a dwelling at all. This is a high bar. Examples that may be relevant include severe structural failure, absence of basic facilities in a way that makes occupation unrealistic, or conditions so serious that the building cannot sensibly function as a home. Even then, each case turns on evidence.

Fourth, test the available evidence. Useful evidence may include:

• dated photographs from the purchase period,
• survey reports and mortgage valuation material,
• auction or sales particulars,
• completion statements and the SDLT return,
• builders’ reports prepared close to completion, and
• evidence showing whether essential services and facilities were present and usable.

Fifth, check whether a claim is still procedurally in time. In many cases, the normal route is an amendment to the SDLT return within 12 months of the filing date. There are also overpayment relief rules, but these have their own conditions and limits. A buyer should not assume that being within four years automatically guarantees a valid reclaim route. The exact dates and procedural history matter.

On the facts described here, saying that a property was in “poor” or “uninhabitable” condition is not enough by itself. The decisive issue is whether the evidence shows that, as a matter of law and fact, the property was not suitable for use as a dwelling when bought. After Mudan, that is a demanding test.

Outcome

A buyer in this situation may still be able to explore an SDLT reclaim, especially if the transaction dates leave a procedural route open. But the merits of the claim will depend on strong contemporaneous evidence showing that the property was not suitable for use as a dwelling at completion.

In practical terms, many properties described as uninhabitable in everyday language will still be treated as dwellings for SDLT purposes. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the threshold is now relatively high.

Practical Steps

If you want to assess your position, gather the following:

• the completion date,
• the purchase price,
• the SDLT return and SDLT5 certificate if available,
• the amount of SDLT paid,
• photographs from the time of purchase,
• survey reports, mortgage valuation reports and repair estimates,
• sales particulars or auction pack material, and
• evidence of the state of utilities, bathroom, kitchen, structure and habitability at completion.

Then consider two separate questions:

1. Is there still a valid procedural route to amend the SDLT position or claim overpayment relief?
2. Does the evidence genuinely show that the property was not suitable for use as a dwelling at the effective date?

If the evidence mainly shows disrepair, refurbishment needs, missing modern features or a property that was difficult but not impossible to occupy, the reclaim is unlikely to succeed.

Conclusion

You cannot reclaim SDLT just because a property was in bad condition. The legal question is whether it was suitable for use as a dwelling at the date of purchase, and that test is now applied strictly. A claim may still be worth reviewing if it is in time and there is strong evidence from the purchase date, but the threshold in these cases is relatively high after Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Legal References Used

• Finance Act 2003
• Finance Act 2003, section 116
• 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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