Can you reclaim higher Welsh LTT if the sale of your old home was delayed by EWS1 and fire safety lending problems?

Introduction

Many people paid the higher rates of Land Transaction Tax in Wales when buying a new main residence before selling their previous one. In straightforward cases, the extra tax can be reclaimed if the old home is sold within the statutory time limit. Problems arise where the sale was delayed by building safety concerns, lender caution, or confusion over EWS1 forms.

This is exactly the kind of issue that leads taxpayers to ask whether a delayed sale can still qualify for a refund. The question has become more important since changes were made in 2024 to address some fire safety cases. The key issue is whether a property affected by perceived fire safety problems, rather than a proven physical defect, falls within those rules.

The Question

A taxpayer bought a new main residence and paid the higher rates of Welsh Land Transaction Tax because they had not yet sold their previous home. The previous home was then marketed, but several sales fell through because mortgage lenders or surveyors insisted on EWS1-related comfort before lending.

The building was said not to require an EWS1 form, yet buyers relying on mortgage finance could not proceed. The property was eventually sold after the normal three-year period, reportedly to a cash buyer and at a reduced price. The taxpayer wants to know whether the 2024 amendments for fire safety defects could support a refund of the higher rates of LTT, even though the problem may have been a perceived defect rather than an actual one.

Nick’s Explanation

Nick’s central point was that the appeal argument needed to be tied much more closely to the legislation and its purpose. In anonymised form, his view was that the strongest route was to focus on the policy intention behind the 2024 amendments and to test that argument against the statutory wording and any parliamentary material.

His reasoning can be summarised like this:

• the argument should not rely only on fairness or general frustration with lenders;
• it should connect the facts directly to the wording of Schedule 5 to the Land Transaction Tax and Anti-avoidance of Devolved Taxes (Wales) Act 2017;
• if the taxpayer says the case falls within the “spirit of the law”, they should look for support in Senedd materials, including Hansard-style parliamentary discussion where available;
• the evidence should show a clear causal link between the fire safety issue and the delayed disposal;
• it may help if the taxpayer can prove that buyer interest was substantially reduced, or that market value was materially depressed, by the fire safety issue.

Nick also suggested that the eventual sale to a cash buyer could be important evidence, because it may help demonstrate that mortgage-related fire safety concerns were a real barrier to an earlier sale.

The Law

Land Transaction Tax in Wales is governed by the Land Transaction Tax and Anti-avoidance of Devolved Taxes (Wales) Act 2017. Higher rates can apply where, at the effective date of a purchase, the buyer owns more than one dwelling and has not yet replaced their only or main residence.

Schedule 5 to the 2017 Act contains the higher rates rules and the refund mechanism where a buyer later disposes of their former main residence within the required period. In broad terms, if the old main residence is sold within the statutory window after the new one is bought, the additional tax can usually be reclaimed.

In 2024, amendments were introduced in Wales to deal with certain cases where disposal of the former main residence was delayed because of a fire safety defect. Those amendments are important because they recognise that some owners were unfairly trapped by building safety problems outside their control.

The legal question is therefore not simply whether the property was hard to sell. It is whether the case falls within the amended statutory concept, including the defined effect of a fire safety defect on the sale process or value of the dwelling.

Where a taxpayer argues that the problem was not a proven physical defect but a perceived defect caused by lender or surveyor behaviour, the strength of the case will depend on the exact statutory wording and whether the tribunal accepts that the facts come within it.

If any part of the appeal also touches on whether a dwelling was uninhabitable or not suitable for use, readers should note that the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. That case makes clear that not every serious inconvenience, disrepair issue, or lending problem will mean a property is unsuitable for use as a dwelling.

Analysis

The first step is to identify the ordinary refund rule. If a buyer pays higher rates on the purchase of a new main residence, they normally need to dispose of their previous main residence within the statutory period to obtain a refund. If the sale happens outside that period, the refund usually fails unless a specific relieving provision applies.

The second step is to identify whether the 2024 fire safety amendments potentially apply. That means asking:

• was there a fire safety defect within the meaning of the legislation;
• did that defect substantially reduce the number of people interested in buying the dwelling, or substantially reduce its market value;
• did that issue cause or contribute to the disposal taking place outside the normal time limit?

The third step is to consider the taxpayer’s factual case. On these facts, the argument would be that multiple sales collapsed because mortgage lenders or valuers treated the absence of EWS1 comfort as a barrier to lending. If that can be proved, the taxpayer may be able to say that buyer interest was substantially reduced because most ordinary purchasers needed mortgage finance.

The fourth step is to consider the weakness in the argument. The legislation appears aimed at actual fire safety defects, not merely market misunderstanding. If the building did not in fact have a qualifying physical defect, the Welsh Revenue Authority or tribunal may say the case falls outside the amended provision, even if the market behaved as though there were a defect.

That is where statutory purpose becomes important. The taxpayer may argue that the amendments were introduced to address the real-world effect of fire safety concerns on transactions, and that the practical effect here was identical: buyers could not proceed, lenders would not lend, and the property had to be sold later and more cheaply. But that is still an argument that must be anchored in the wording actually enacted.

The fifth step is evidence. A tribunal is likely to want detailed evidence such as:

• estate agent records showing aborted sales and dates;
• mortgage lender or broker communications showing why finance was refused;
• valuer or surveyor comments referring to EWS1 or fire safety concerns;
• building management or professional evidence explaining why EWS1 was said not to be required;
• evidence that the eventual sale was to a cash buyer because mortgage-backed purchasers could not proceed;
• evidence of any price reduction linked to the same issue.

The sixth step is to avoid overstating the point. A taxpayer should be careful not to assume that any EWS1-related difficulty automatically counts as a statutory fire safety defect. The better approach is to present the facts precisely, tie them to the wording, and then explain why the policy of the amendment supports that interpretation.

Finally, this is not really an “uninhabitable dwelling” case on the facts described. The issue is delay in sale caused by lending and marketability problems. If a taxpayer tries to recast it as a property not suitable for use, they may face difficulty, especially after Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, which confirms that the threshold for unsuitability is high.

Outcome

The practical conclusion is that a refund may be arguable, but it is not straightforward. The best argument is that the 2024 Welsh amendments were intended to relieve taxpayers whose sales were delayed by fire safety issues that seriously affected marketability and value, and that the facts fit that purpose.

However, the case may turn on whether the legislation is interpreted as covering only actual qualifying defects, or also a perceived defect that had the same commercial effect. If the problem was purely lender caution in the absence of any qualifying defect, the Welsh Revenue Authority may resist the claim and a tribunal may or may not accept the wider purposive reading.

Practical Steps

If you are assessing a similar case, the following steps are sensible:

1. check the exact purchase date of the new residence and the exact disposal date of the old one;
2. identify the statutory refund deadline and the specific 2024 amendment relied on;
3. gather all evidence showing that failed sales were caused by fire safety or EWS1-related lending issues;
4. obtain documents showing whether the building did or did not require EWS1, and why;
5. show how many buyers were lost and whether the eventual sale price was reduced because of the same issue;
6. review Senedd materials and explanatory notes for the 2024 amendments to see whether legislative purpose supports the argument;
7. draft the appeal by linking each fact to the statutory wording, rather than relying on fairness alone;
8. avoid framing the case as one about habitability unless the facts genuinely support that, bearing in mind the high threshold confirmed in Mudan.

Conclusion

If the sale of a former main residence was delayed by EWS1 and fire safety lending problems, there may be an argument for a refund of higher Welsh LTT under the 2024 amendments. The strength of the case depends on the statutory wording, the evidence, and whether the tribunal accepts that the fire safety problem falls within the amended rules. A carefully evidenced argument focused on causation, market impact, and legislative purpose is likely to be the strongest approach.

Legal References Used

• Land Transaction Tax and Anti-avoidance of Devolved Taxes (Wales) Act 2017
• Schedule 5 to the Land Transaction Tax and Anti-avoidance of Devolved Taxes (Wales) Act 2017
• 2024 amendments to Schedule 5 concerning fire safety defects and delayed disposal of a former main residence
• Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799

This page was last updated on 22 March 2026.

See all questions and answers categorized in this sitemap. Or use Google site search below.