What documents are needed for an SDLT refund claim on an allegedly uninhabitable property?

Introduction

People often search for this issue after buying a property that was in poor condition and then being told they may be able to reclaim Stamp Duty Land Tax (SDLT). A common question is whether photographs alone are enough, or whether HMRC will expect formal transaction documents as well.

In practice, an SDLT refund claim of this kind usually depends on both the legal basis of the claim and the quality of the evidence. Where the argument is that the dwelling was not suitable for use as a residence at the effective date of the transaction, the documentary record matters. Buyers are often asked for the SDLT5 certificate, the signed transfer, the signed contract, and supporting evidence about the condition of the property.

This is especially important now because the threshold for showing that a property was not suitable for use as a dwelling is relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

The Question

A buyer wanted to pursue an SDLT reclaim in relation to one or more residential purchases. The buyer had already provided some documents and photographic evidence and had been told that a full refund might be available. The next issue was what paperwork had to be submitted to support the claim, in particular whether the buyer needed:

• the SDLT5 certificate,
• the signed and dated TR1 transfer, and
• the signed and dated purchase contract.

There was also a practical problem: the buyer did not have all signed copies to hand and needed to obtain them from the conveyancer or from the transaction file.

Nick’s Explanation

Nick’s response, read as a public-facing explanation, points to a simple practical reality: if a reclaim is going to be made, the file needs to be complete. That normally means obtaining the core transaction documents again, even if some details may already have been supplied before.

In anonymised form, the key point can be put this way: the claim should not be submitted on the basis of informal material alone if the signed legal documents can and should be obtained. A proper SDLT reclaim file will usually include the SDLT return evidence, the transfer, the contract, identification material where required for onboarding, and the factual evidence said to support the technical argument.

The underlying message is that document collection is not a side issue. It is part of proving what was bought, when it was bought, on what terms, and why the buyer says the original SDLT treatment was wrong.

The Law

SDLT is charged under the Finance Act 2003. The amount of tax depends on the nature of the chargeable transaction and the subject matter acquired.

For residential property, an issue sometimes arises where the buyer argues that the property was not a “dwelling” at the effective date of the transaction because it was not suitable for use as a residence. If that argument succeeds, the transaction may fall to be treated differently for SDLT purposes.

The key statutory provisions are found in Schedule 4ZA to the Finance Act 2003, which deals with higher rates for additional dwellings and uses the concept of a “dwelling”. Case law has also considered what counts as a dwelling, including whether a building was suitable for use as a residence at the relevant date.

The courts have made clear that this is a fact-sensitive test. Serious disrepair does not automatically mean a building stops being a dwelling. The question is not whether the property was unattractive, inconvenient, or in need of renovation. The question is whether, viewed realistically at the effective date, it was suitable for use as a dwelling.

Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the condition threshold is now relatively high in uninhabitable or “not suitable for use” cases. That means many claims that might once have been presented optimistically are now harder to sustain.

Where a buyer seeks a repayment from HMRC, the claim must be supported by sufficient evidence. HMRC is entitled to ask for the legal and factual material needed to verify the position.

Analysis

The starting point is to separate two different questions:

1. Is there a valid legal basis for an SDLT reclaim?
2. If so, what evidence is needed to prove it?

On the evidence question, the core transaction documents are usually important for the following reasons.

• The SDLT5 helps identify the original filing and the transaction details.
• The signed contract helps establish the bargain entered into and the relevant dates.
• The signed TR1 or other transfer document helps show what legal estate was transferred and on what completion basis.

Those documents do not by themselves prove that a property was not suitable for use as a dwelling. But they are still part of the evidential foundation of the claim. HMRC will normally expect to see the transaction documents alongside the condition evidence.

The condition evidence may include:

• dated photographs taken at or around completion,
• surveyor or contractor reports,
• mortgage valuation comments,
• evidence that key facilities were absent or unusable,
• invoices for immediate remedial works, and
• correspondence from the conveyancing process referring to the state of the property.

Even then, the claim only has real prospects if the facts meet the legal threshold. This is where many buyers go wrong. A property may need extensive work and still remain a dwelling for SDLT purposes. The courts have repeatedly resisted attempts to treat ordinary renovation properties as non-dwellings.

After Mudan, the standard is stricter than many claim promoters had assumed. A buyer therefore needs to ask not just, “Do I have photographs?” but, “Do my documents and facts show a genuinely non-residential condition at the effective date?”

If the answer is uncertain, obtaining the full file from the conveyancer is still sensible. It allows the claim to be assessed properly rather than guessed at. The conveyancer may hold signed copies of the contract and transfer, completion statements, title papers, and correspondence that either support or undermine the proposed reclaim.

Outcome

A buyer considering this kind of SDLT reclaim should expect to provide the main transaction documents, not just photographs. In most cases, that means the SDLT5, the signed and dated contract, and the signed and dated TR1 or equivalent transfer document, together with factual evidence about the property’s condition.

More importantly, the buyer should not assume that poor condition automatically means a 100% refund is available. In uninhabitable cases, the legal threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Practical Steps

If you are assessing a possible SDLT reclaim of this kind, the sensible next steps are:

1. Obtain the full conveyancing file or at least the key completion documents.
2. Locate the SDLT5 certificate and details of the original SDLT submission.
3. Get signed copies of the contract and TR1 or other transfer document.
4. Gather dated evidence of the property’s condition at the effective date of the transaction.
5. Check whether the defects were truly so serious that the building was not suitable for use as a dwelling, rather than merely in need of repair.
6. Compare the facts against current case law, especially Mudan.
7. Make sure any reclaim is consistent with the transaction documents, valuation evidence, and the buyer’s own later use of the property.

If documents are missing, the first port of call is usually the acting conveyancer, who may still hold signed copies or archived records.

Conclusion

An SDLT reclaim based on alleged uninhabitability usually requires a full evidential file, not just photographs. The SDLT5, signed contract, and signed transfer are commonly needed, and the legal test is now demanding. The key question is not whether the property was in bad condition, but whether it was truly not suitable for use as a dwelling at the effective date.

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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