Can you resubmit an SDLT refund claim after the 4-year deadline if an earlier claim was filed in time?

Introduction

Many buyers look into a Stamp Duty Land Tax (SDLT) refund after completion and then discover a timing problem. The usual rule is that an SDLT overpayment claim must be made within 4 years of the effective date of the transaction. A common question is what happens if an earlier claim was submitted in time, but that claim was later withdrawn, cancelled or not pursued properly, and a fresh claim is then sent after the deadline.

This issue can become even more complicated where the refund argument is based on the property being uninhabitable at the time of purchase. That area of law has become much harder for taxpayers following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, which confirms that the threshold for showing a dwelling was not suitable for use is now relatively high.

The Question

A buyer purchased a residential property several years ago and later sought to recover SDLT said to have been overpaid. An earlier adviser had already submitted a refund claim within the statutory 4-year period, but that earlier submission was then cancelled at the buyer’s request. A later adviser argued that the new submission should be treated as a resubmission of the original in-time claim rather than a brand-new out-of-time claim.

The buyer also wanted to know whether HMRC was likely to accept an uninhabitable property argument in the current legal climate.

Nick’s Explanation

Nick’s reasoning had two parts.

First, on time limits, his point was that the legislation says a claim under the relevant paragraph may not be made more than 4 years after the effective date of the transaction. He argued that where a claim had in fact been made within that 4-year period, a later submission might properly be characterised as a continuation or resubmission of that original claim rather than a wholly new claim. In anonymised form, his view was:

“A previous claim for overpayment of stamp duty was made within 4 years of the effective date of the transaction. The current submission is a resubmission of that existing claim. On that basis, it should fall within the statutory time limit.”

He also noted that the law is not entirely clear on what exactly counts as “a claim” for these purposes, which leaves room for argument but not certainty.

Second, on uninhabitable property claims, Nick explained that HMRC’s approach had become significantly stricter. He indicated that HMRC felt reinforced by the developing case law and that there was limited scope for these claims to succeed unless the facts were particularly strong. That assessment is even more important now that Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799 has clarified that the condition threshold is relatively high. In other words, serious disrepair alone is not always enough; the question is whether the property was truly not suitable for use as a dwelling at the effective date.

The Law

The key time-limit provision is found in Finance Act 2003, Schedule 10, paragraph 34B(1), which states:

“A claim under paragraph 34 may not be made more than 4 years after the effective date of the transaction.”

For SDLT purposes, the “effective date” is usually the completion date, unless special statutory rules apply.

Where a taxpayer says too much SDLT was paid, the statutory route depends on the type of overpayment and the basis of the claim. The legislation imposes strict deadlines, and HMRC generally applies them closely.

Separate from time limits, some taxpayers have argued that a property was not “residential property” because it was not suitable for use as a dwelling at the effective date. That argument has been heavily litigated. The modern position is narrower than many earlier claimants assumed. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the test is demanding and the condition thresholds are now relatively high. A property does not stop being residential merely because it needs works, lacks modernisation, or is in poor repair. The defects must be sufficiently serious to mean it was not suitable for use as a dwelling at the relevant date.

Analysis

The first question is whether an in-time claim was actually made. If no valid claim was submitted within the 4-year period, HMRC is likely to say the matter is simply out of time.

If a claim was submitted in time, the next question is what happened to it. If it was merely supplemented, corrected, or re-presented, there may be an argument that the later submission relates back to the original in-time claim. That is the essence of the argument Nick was advancing.

However, if the original claim was expressly withdrawn or cancelled and the later submission is materially different, HMRC may argue that the later document is a new claim made outside the statutory period. In practice, the outcome is likely to depend on the paperwork, the wording used when the earlier claim was cancelled, and whether there is enough continuity between the first and second submissions.

The phrase “a claim” in paragraph 34B(1) is important. If the legislation is read strictly, HMRC may say each separate claim stands on its own and must independently satisfy the 4-year rule. On the other hand, if the later submission is properly viewed as reviving or correcting the original in-time claim, there is at least an arguable basis for saying the statutory deadline was met.

The second question is whether the underlying refund argument is strong enough to justify pursuing the matter at all. If the claim depends on the property being uninhabitable, the legal landscape is now difficult for taxpayers. After Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the courts have made clear that the threshold is relatively high. The property must be in such a condition that it was not suitable for use as a dwelling at the effective date. Ordinary disrepair, dated condition, missing fittings, or the need for renovation will often not be enough.

So even if the timing argument succeeds, the substantive claim may still fail unless the evidence of unsuitability is unusually strong.

Outcome

The practical answer is this:

If an SDLT refund claim was genuinely made within 4 years, there may be an argument that a later submission is not out of time if it is truly a resubmission or continuation of that original claim. But that is not guaranteed, and HMRC may reject the point if it considers the original claim to have been cancelled and replaced by a new one.

If the refund argument relies on the property being uninhabitable, the claim now faces a tougher legal test. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the threshold for showing that a property was not suitable for use as a dwelling is relatively high.

Practical Steps

A reader in this position should gather and review:

• the SDLT return and completion date;
• the exact date the first refund claim was submitted;
• proof of submission and any HMRC acknowledgement;
• the wording used to withdraw or cancel the earlier claim;
• the later claim and how closely it matches the first one;
• all correspondence with HMRC and any previous adviser;
• if relevant, evidence of the property’s condition at the effective date, including survey reports, photographs, invoices, contractor evidence and utility information.

The key issues to assess are:

• whether the original claim was validly made within 4 years;
• whether the later submission can realistically be characterised as the same claim being resubmitted or corrected;
• whether the substantive legal basis for the refund remains viable under current case law.

Where the case depends on unsuitability for use as a dwelling, the evidence should be tested carefully against the high threshold now confirmed by the Court of Appeal.

Conclusion

A later SDLT reclaim may still be arguable if an earlier claim was filed in time and the later submission is genuinely a continuation of it. But the position is uncertain and highly fact-sensitive. If the claim also depends on the property being uninhabitable, readers should proceed on the basis that the legal test is now much stricter following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Legal References Used

• Finance Act 2003, Schedule 10, paragraph 34B(1)
• 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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