If you have recently purchased a property in England or Northern Ireland, you need to be aware of a growing threat. Rogue tax agents are targeting homebuyers with false promises of Stamp Duty Land Tax (SDLT) refunds and the financial consequences of falling for these schemes can be severe. HMRC has issued a firm warning, backed by a landmark Court of Appeal ruling, and is now actively pursuing those behind these misleading claims.
What Is This Warning About?
HM Revenue and Customs (HMRC) is urging property buyers to be vigilant about a specific type of scam that has been circulating with increasing frequency. Dishonest agents have been contacting new homeowners often via unsolicited letters, cold calls, or social media advertisements offering to recover SDLT already paid on their behalf.
The central claim made by these agents is that if a property required repairs or was in a poor state at the time of purchase, it could be reclassified as “non-residential,” thereby qualifying for a lower rate of SDLT and triggering a refund. This claim is false.
HMRC confirmed that it is using both civil and criminal powers to pursue agents who make spurious SDLT repayment claims, signalling how seriously the tax authority views this issue.
The Court of Appeal Ruling That Changes Everything
The legal basis for HMRC’s crackdown is a landmark ruling in the case of Mudan & Anor v HMRC EWCA Civ 799. The Court of Appeal firmly upheld the earlier Upper Tribunal decision, confirming that a property in need of repair remains “residential” for SDLT purposes, regardless of its condition at the time of purchase.
The key findings from this case are clear:landtaxadvice
- Being “suitable for use as a dwelling” does not mean the property must be ready for immediate occupation
- A structurally sound building retains the fundamental characteristics of a dwelling even if it requires significant renovation
- If a property was previously used as a dwelling, that history is highly relevant to its SDLT classification
- Only if defects are so severe that the property no longer has the characteristics of a dwelling such as requiring demolition might a non-residential classification be considered
The Court confirmed that “residential property” should be interpreted as the type of property that ordinary people would characterise as somewhere people live in, past use, structural integrity, and retained residential identity are the deciding factors, not the extent of repairs needed.
How the Scam Works — A Real Example
HMRC has shared a real-world example that illustrates precisely how homebuyers are being caught out.
Joe purchased a house in London for £1,100,000. His solicitor filed the SDLT return and calculated the tax at residential rates, totalling £53,750. The house needed a new boiler, rewiring, and damp proofing, so Joe could not move in immediately.
Shortly after moving in, Joe received an unsolicited letter from a repayment agent. The agent claimed that due to the required repairs, they could secure a refund on a “no win, no fee” basis. The refund amounted to £9,250, representing the difference between residential and non-residential SDLT rates. The agent took a 30% fee, leaving Joe with £6,475.
Later that year, HMRC opened a compliance check and concluded the property was residential. Joe was then required to repay the full £9,250 in SDLT, plus interest and penalties despite having only received £6,475 from the agent. The agent refused to cover the interest and penalties and stopped responding entirely.
Joe ended up worse off than if he had never made the claim at all.
Warning Signs of a Bogus Claim
Understanding how these agents operate is the first step to protecting yourself. Be alert to the following red flags:
- Unsolicited contact by post, phone, or social media after your property purchase
- “No win, no fee” offers promising easy SDLT refunds based on the condition of your property
- High commission rates, typically between 20% and 50% of the claimed refund
- Pressure to act quickly, often citing limited time windows
- Vague references to tax law without providing specific legal evidence
- Agents sourcing your details from Land Registry records or property search websites
What HMRC Says About Your Legal Responsibility
One of the most important things every homebuyer must understand is this: SDLT is a self-assessed tax. This means the legal responsibility for the accuracy of any SDLT return or repayment claim lies entirely with the taxpayer, not the agent.
If an agent submits a claim on your behalf and that claim is found to be incorrect, you, the homeowner are liable for repaying the full amount, along with interest and any applicable penalties. The agent’s fee is not refunded, and the agent has no legal obligation to cover the additional charges you incur.
From 6 April 2025, HMRC charges late payment interest at 8.5% per annum (Bank of England base rate plus 4%) on underpaid or incorrectly repaid SDLT. This interest cannot be appealed and accrues from the date the original repayment was made.
When Is an SDLT Repayment Claim Legitimate?
Not all SDLT refund claims are fraudulent. There are genuine circumstances in which a repayment may be valid:
- You paid the higher rate due to owning an additional property but have since sold your previous main residence within 36 months
- The property was genuinely mixed-use at the time of purchase (both residential and commercial elements), and you were incorrectly charged at residential rates
- A property was in such a state of severe structural failure requiring demolition rather than repair that it truly did not meet the definition of a dwelling at completion
- You paid first-time buyer relief incorrectly, or another relief was misapplied at the time of filing
In any of these cases, it is important to note that you can submit a legitimate claim directly to HMRC yourself at no cost, without the need to pay an agent’s commission.
How to Protect Yourself
If you have already been approached by an agent, or are unsure whether a claim you have made or authorised was legitimate, take these steps:
- Do not sign anything from an unsolicited agent without first seeking independent advice
- Consult your original solicitor or conveyancer, who handled your property purchase and filed your SDLT return
- Check the official SDLT guidance on GOV.UK before making or authorising any repayment claim
- Report suspected fraudulent agents to HMRC using their online fraud reporting tool
- Keep all correspondence from agents as this may be required as evidence
- Seek qualified, regulated tax advice from a professional who is registered with a recognised accountancy body
If you have already received a repayment based on a questionable claim, you should seek professional advice immediately, as HMRC may open a compliance check at any time.
How UK Property Tax Accountants Can Help
At UK Property Tax Accountants, we understand that SDLT rules are complex, and the consequences of getting them wrong can be financially damaging. Our team of specialist property tax advisers provides clear, compliant guidance to homebuyers and property investors across England and Northern Ireland.
If you have been approached by a rogue repayment agent, we can review any claim made on your behalf and advise you on your current exposure to HMRC penalties and interest. If you believe you may have paid too much SDLT based on a genuine set of circumstances such as a mixed-use property or additional dwelling surcharge, we can assess your eligibility and file a legitimate claim directly with HMRC on your behalf, in full compliance with current rules.
We stay ahead of every change in SDLT legislation and case law, including the Mudan ruling, so you can be confident that any advice you receive is accurate, up to date, and in your best interest. Whether you are at the point of purchase, have recently completed a transaction, or are dealing with a compliance enquiry from HMRC, our team is here to help you navigate the process with confidence and clarity.
Frequently Asked Questions
Q: Can I claim an SDLT refund if my property needed repairs when I bought it?
A: No. Following the Court of Appeal ruling in Mudan & Anor v HMRC, a property that required repairs including boiler replacement, rewiring, or damp treatment is still classified as residential for SDLT purposes. Claims for refunds based purely on the condition of a property are not valid and will be rejected by HMRC.
Q: What happens if HMRC finds my refund claim was incorrect?
A: You will be required to repay the full amount of the refund, plus interest at 8.5% per annum (from April 2025) from the date the repayment was made. Penalties may also apply depending on whether HMRC considers the incorrect claim to have been the result of negligence or deliberate misrepresentation.
Q: Am I responsible for a claim made by an agent on my behalf?
A: Yes. SDLT is a self-assessed tax, which means legal responsibility lies with the taxpayer, not the agent. Even if an agent submitted the claim without your full understanding of the consequences, you are still liable for any tax, interest, and penalties owed to HMRC.
Q: How do I know if an SDLT refund offer is genuine?
A: Legitimate SDLT refunds are based on specific, verifiable criteria such as a higher-rate surcharge rebate or a mixed-use property classification. If an agent contacts you out of the blue, charges a commission, and claims your property qualifies because it needed work, this is a strong indication of a bogus scheme. Genuine eligible claims can be made directly to HMRC free of charge.
