Can you claim a 3-year SDLT refund after selling your previous home?

Introduction

Many people search for help with the “3-year stamp duty refund rule” after buying a new home before selling their old one. The issue usually arises where the higher rates of Stamp Duty Land Tax (SDLT) were paid on a purchase because, at the time of completion, the buyer still owned another dwelling.

The key question is whether the higher rates were paid on a replacement main residence and, if so, whether the former main residence was sold within the time limit. The answer depends on which purchase attracted the higher rates and whether the conditions for a refund were actually met.

The Question

A buyer purchased a dwelling in 2021 for £262,000 and paid SDLT. The buyer later purchased another dwelling in 2024 for £400,000 and also paid SDLT on that purchase. The buyer has heard that there is a 3-year rule allowing a refund of SDLT and wants to know whether a refund can be claimed.

Nick’s Explanation

Nick’s main point was that more information is needed before a definite answer can be given, because the refund rules depend on which transaction involved the higher rates.

In substance, his explanation was:

• First identify which purchase is being considered for a refund: the 2021 purchase or the 2024 purchase.
• If the refund relates to the 2021 purchase, a refund may be available if the buyer paid the higher rates then because they still owned a previous dwelling, and later sold that previous main residence within the permitted period.
• If the refund relates to the 2024 purchase, the position depends on whether the higher rates were paid on that later purchase and whether it was in fact a replacement of the buyer’s only or main residence.

That is the correct starting point. A refund is not available simply because a property was sold within 3 years. The refund only applies in a specific replacement-of-main-residence situation.

The Law

The higher rates of SDLT for additional dwellings are set out in Schedule 4ZA to the Finance Act 2003.

Broadly, the higher rates can apply where, at the end of the day of purchase, the buyer owns more than one dwelling and is not replacing their only or main residence at that point.

A common situation is this:

• a buyer purchases a new home before selling their old home;
• because they still own the old home on completion day, the higher rates are charged on the new purchase;
• if they then sell the old home within the allowed period, they may claim a refund of the higher rates.

The usual time limit for selling the former main residence is within 3 years of buying the new residence. There is also a separate time limit for making the refund claim, which is generally 12 months from the sale of the former main residence, or 12 months from the filing date for the SDLT return, whichever is later.

The legislation does not create a general right to reclaim SDLT after any sale within 3 years. The sale must be the disposal of the buyer’s former only or main residence, and the purchase on which the surcharge was paid must be a replacement residence purchase.

Analysis

The position can be analysed in stages.

First, identify whether either purchase was charged at the higher rates for additional dwellings.

If the 2021 purchase for £262,000 was charged at a figure consistent with the higher rates, that suggests the buyer may already have owned another dwelling at that time. If so, the next question is whether that other dwelling was the buyer’s former only or main residence and whether it was sold within 3 years of the 2021 purchase.

Second, if the buyer is asking about a refund on the 2021 purchase, the crucial question is what property was sold after that purchase.

If the buyer sold the former main residence within 3 years of the 2021 completion date, a refund may have been due on the 2021 purchase. But if the property sold later was not the former main residence, or if the sale happened outside the relevant deadline, the refund conditions would not be met.

Third, if the buyer is asking about the 2024 purchase for £400,000, the same logic applies again.

Was the 2024 purchase charged at the higher rates because the buyer still owned another dwelling at completion? If yes, was the other dwelling the buyer’s former only or main residence, and was it then sold within 3 years? If those conditions are met, a refund may be available for the higher rates paid on the 2024 purchase.

Fourth, the dates matter.

On the facts given, the later purchase completed in July 2024. That does not by itself create a refund right for SDLT paid in 2021. The 3-year rule works by asking whether the former main residence was sold within 3 years after the later replacement purchase that attracted the surcharge.

So the buyer needs to match:

• the purchase that was subject to the higher rates, and
• the later sale of the former main residence connected with that purchase.

Fifth, there is a separate claim deadline.

Even if the substantive conditions are met, the refund must be claimed in time. A buyer who waits too long after the sale may lose the right to recover the surcharge.

Finally, this is not an “uninhabitable property” question, but it is worth noting that where buyers argue that a dwelling was 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. Ordinary disrepair or a need for renovation will often not be enough.

Outcome

A refund may be available, but only if the higher rates were paid on the relevant purchase and that purchase was a replacement of the buyer’s only or main residence, with the former main residence sold within the permitted period.

On the information provided, it is not yet possible to say definitively whether the refund relates to the 2021 purchase or the 2024 purchase, and that distinction is essential. The buyer should not assume that selling a property within 3 years automatically produces a refund.

Practical Steps

To assess the position properly, the buyer should check the following:

• Which purchase was charged at the higher SDLT rates: the 2021 purchase, the 2024 purchase, or both.
• How much SDLT was actually paid on each transaction.
• What other dwellings were owned on each completion date.
• Which dwelling was the buyer’s only or main residence before each purchase.
• Whether that former main residence was sold, and if so on what date.
• Whether any refund claim is still within the statutory time limit.

The most useful documents are usually:

• the SDLT return or completion statement for each purchase;
• the completion statement for the sale of the former home;
• evidence showing which property was the buyer’s main residence, such as council tax, electoral roll, utility bills, and occupation history if needed.

Conclusion

The 3-year SDLT refund rule is narrow. It does not apply just because one property was sold within 3 years of another purchase. It applies where higher rates were paid on a replacement home because the former main residence had not yet been sold, and that former main residence was then sold within the allowed time. The key step is to identify which purchase attracted the surcharge and whether the later sale matches the statutory conditions for a refund.

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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