What documents do you need to review a possible SDLT reclaim?

Introduction

People looking into a possible Stamp Duty Land Tax (SDLT) reclaim often want to know what paperwork is needed before anyone can assess the position properly. In most cases, the starting point is not a legal argument but the transaction documents. Without them, it is difficult to confirm what was bought, when completion took place, what price was paid, how the SDLT return was completed, and whether there is any realistic basis for an amendment or reclaim.

The Question

A buyer asked what documents are usually needed at the outset of an SDLT reclaim or review. The issue was simply whether the basic transaction papers had been received and, if not, which documents should be obtained from the conveyancer or retained papers.

Nick’s Explanation

Nick’s explanation was straightforward: before a claim can be reviewed, the key conveyancing and SDLT documents should be gathered. The core documents requested were:

• the TR1 transfer, dated and signed;
• the SDLT5 certificate;
• the sale contract, dated and signed; and
• the completion statement.

In anonymised form, Nick’s point was that these documents allow the adviser to understand the legal transfer, the SDLT filing position, the contractual terms, and the financial completion figures. If the buyer does not still have them, they can usually be obtained from the acting solicitors or conveyancers.

The Law

SDLT is charged under the Finance Act 2003. In broad terms:

• the charge to SDLT arises on a land transaction;
• the buyer must usually file an SDLT return;
• tax is calculated by reference to the chargeable consideration and the nature of the property or transaction; and
• if the return was wrong, there may in some cases be scope to amend it or claim a repayment, subject to the statutory rules and time limits.

The exact legal route depends on the issue. For example, some cases concern whether the property was residential or non-residential, whether mixed-use treatment applied, whether a relief was available, or whether the dwelling was unsuitable for use as a dwelling on the effective date of the transaction. In any of those situations, the documentary record matters.

Where the argument is that a property was uninhabitable or not suitable for use as a dwelling, the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. That means the factual and documentary evidence must be carefully reviewed before any reclaim is pursued.

Analysis

Each of the requested documents serves a specific purpose.

• TR1: this is the transfer deed. It helps confirm exactly what legal estate was transferred, who the purchaser was, and the consideration stated in the transfer. It can also help identify whether there were multiple titles or unusual features affecting SDLT treatment.

• SDLT5: this is evidence that an SDLT return was submitted and processed. It helps match the filing to the transaction and is often the quickest way to identify that a return exists and should be traced.

• Sale contract: this is often central. It shows what was agreed, whether there were special conditions, whether anything else was included in the transaction, and what the effective date may have been. In mixed-use or multiple-asset cases, the contract can be especially important.

• Completion statement: this shows the completion monies and can help test whether the consideration reported for SDLT matches the actual transaction figures. It may also help identify whether sums were allocated to items that should or should not have been included.

Once those papers are available, the review can usually move on to the substantive tax issue. If the proposed reclaim concerns property condition, further evidence is often needed, such as survey reports, photographs, builder quotations, mortgage valuation material, and any evidence showing the condition at the effective date. After Mudan, ordinary disrepair or the need for renovation will often not be enough by itself.

If the proposed reclaim concerns mixed-use treatment, then title documents, plans, particulars, and evidence of the non-residential element may also be needed. If the issue concerns a relief, then trust documents, partnership papers, company records, or other transaction-specific material may be required.

Outcome

The practical answer is that an SDLT review normally starts with four basic documents: the signed TR1, the SDLT5, the signed sale contract, and the completion statement. Without these, it is hard to assess whether any reclaim has merit. They are the core papers needed to reconstruct the transaction and test whether the original SDLT treatment was correct.

Practical Steps

1. Check your purchase file for the signed TR1, SDLT5, sale contract, and completion statement.
2. If you do not have them, ask your conveyancer or solicitor for a copy of the full completion file or at least those key documents.
3. Make sure the documents are complete, dated where relevant, and legible.
4. Compare the consideration shown across the contract, TR1, completion statement, and SDLT filing.
5. Identify the exact basis of the proposed reclaim, such as mixed-use, relief, or unsuitability for use as a dwelling.
6. If the issue is property condition, gather contemporaneous evidence from the transaction date, not just later repair records.
7. Check limitation and amendment deadlines under the Finance Act 2003 before taking further steps.

Conclusion

If you want to assess a possible SDLT reclaim, start with the transaction documents. In most cases, the signed TR1, SDLT5, signed sale contract, and completion statement are the essential first papers. They provide the factual foundation for any proper legal and tax analysis.

Legal References Used

• Finance Act 2003
• 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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