Can you reclaim the higher rate of SDLT on an earlier buy-to-let purchase if you now sell it and buy a main home?

Introduction

People often ask whether they can recover the 3% higher rate of Stamp Duty Land Tax (SDLT) paid on an additional property if their circumstances later change. A common example is where someone bought a second property, paid the higher rates for additional dwellings, and now plans to sell that property and buy a new home to live in.

The answer depends on two separate questions:

• whether a refund is available for the earlier purchase, and
• whether the next purchase will itself be treated as a replacement of an only or main residence, so that the higher rates do not apply again.

Those are related issues, but they are not the same. The timing of the sales and purchases, and which property was truly the buyer’s only or main residence, are critical.

The Question

A buyer owned one property and then bought a second flat in late 2020. At that time, the buyer paid the higher rates of SDLT because the flat was an additional dwelling. The buyer is now planning to sell that flat and buy a new property to use as a main residence, while keeping the original property and turning it into a rental property.

The buyer wants to know:

• can the higher SDLT paid on the 2020 purchase now be reclaimed, and
• will the next purchase qualify for the normal residential SDLT rates rather than the higher rates?

Nick’s Explanation

Nick’s reasoning was that the refund rules for the earlier purchase are narrow. In anonymised form, his key point was:

“A refund is only available where, at the time of the purchase, the buyer still owned their previous main residence and then sold that previous main residence within the following three years.”

He also explained that the next purchase may be treated differently:

“If the property being sold is the buyer’s only or main residence at that point, and the sale takes place on or before the new purchase or within the permitted three-year period, the new purchase can count as a replacement of an only or main residence. In that case, the higher rates do not apply.”

He therefore separated the analysis into two stages:

• the 2020 SDLT refund position, which depends on what happened within three years after that purchase; and
• the SDLT treatment of the upcoming purchase, which depends on whether the property now being sold is genuinely the buyer’s only or main residence.

The Law

The relevant rules are in Schedule 4ZA to the Finance Act 2003, which governs the higher rates for additional dwellings.

In broad terms, the higher rates apply where, at the end of the day of the transaction, the purchaser owns more than one dwelling and the purchase is not a replacement of the purchaser’s only or main residence.

The key provision for replacement of a main residence is paragraph 3(6) of Schedule 4ZA. It provides that a transaction is not a higher-rates transaction if:

• the purchased dwelling is a replacement for the purchaser’s only or main residence, and
• the purchaser disposed of the previous only or main residence on or before the effective date of the purchase, or within the previous three years.

Where the old main residence is sold after the new purchase, paragraphs 3(7) to 3(9) allow the higher rates to be repaid, but only if the statutory conditions are met. In essence, the buyer must have bought a new main residence before selling the old one, and then must dispose of the old main residence within the permitted three-year period.

The legislation focuses on the purchaser’s “only or main residence”. That is a factual question. It is not determined solely by the mortgage label, council tax records, or what the parties call the property. HMRC and the tribunals look at the reality of occupation and day-to-day life.

Analysis

There are two distinct issues to work through.

First, can the buyer recover the higher SDLT paid on the 2020 purchase?

On the facts provided, that appears unlikely. The flat bought in 2020 was bought as an additional property while the earlier property remained owned. For a refund to arise, the legislation generally requires the buyer to dispose of the previous only or main residence within three years after the later purchase. If that earlier main residence was not sold within that period, the statutory refund route is not available.

So if the original property remained owned beyond the end of the three-year period after the 2020 purchase, the higher rates paid in 2020 are not normally repayable now.

Second, what about the buyer’s next purchase?

This is where the position may be different. If the buyer is now genuinely living in the flat being sold, and that flat has become the buyer’s only or main residence in fact, then selling it and buying a new home may amount to replacing an only or main residence. If that is right, the next purchase could fall within paragraph 3(6), meaning the higher rates would not apply to the new purchase even though another property is still retained.

That said, this is fact-sensitive. Living “between two properties” can create difficulty. HMRC will usually consider matters such as:

• where the buyer actually spends most of their time,
• where personal possessions are kept,
• where the buyer is registered for day-to-day matters,
• which address is used for correspondence and practical living arrangements, and
• the overall pattern of occupation.

Paying council tax on a property, having bills there, or staying there for periods may support the argument, but none of those points is conclusive on its own.

If the buyer completes the sale of the current residence on the same day as the purchase of the new home, that timing is usually the cleanest route. It makes it easier to show that the new purchase is a direct replacement of the old only or main residence.

The mortgage position does not determine the SDLT result. A property can be subject to a buy-to-let mortgage and still, in principle, be someone’s residence as a matter of fact, although that may create evidential and practical complications. For SDLT, the real question is occupation and residence, not the mortgage product.

This is not an “uninhabitable” case, but where readers are considering whether a property was unsuitable for use as a dwelling for SDLT purposes, the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Outcome

On these facts, the practical conclusion is:

• the higher SDLT paid on the 2020 purchase is unlikely to be recoverable now, because the statutory refund conditions do not appear to have been met within the required three-year period; but
• the next purchase may avoid the higher rates if the property being sold is, by then, the buyer’s genuine only or main residence and the sale and purchase are properly timed as a replacement transaction.

So the earlier surcharge and the upcoming purchase should be treated as two separate SDLT questions.

Practical Steps

Anyone in this position should work through the following points carefully:

• Identify which property was the only or main residence at the time of the earlier purchase.
• Check whether that previous main residence was sold within three years of the later purchase. If not, a refund for the earlier higher rates is usually unavailable.
• For the next purchase, gather evidence showing which property is your current only or main residence in real life.
• Try to align completion dates so that the sale of the current residence and the purchase of the new home complete on the same day, or ensure the disposal falls within the statutory window.
• Do not assume that mortgage wording, council tax alone, or a solicitor’s description settles the SDLT question.
• Review the SDLT return for the new purchase carefully before filing, because an incorrect higher-rates position can be costly and time-consuming to correct.

Where there has been mixed occupation between two homes, a detailed timeline of actual residence is often essential.

Conclusion

If you paid the higher rates on an additional property some years ago, you cannot usually reclaim that tax simply because you are now selling that property and buying a home to live in. A refund depends on the specific statutory conditions having been met at the time, including the sale of the previous main residence within three years.

However, your next purchase may still qualify for the normal SDLT rates if it is a genuine replacement of your only or main residence. The key issue is not what the properties are called, but which one is truly your home in fact.

Legal References Used

• Finance Act 2003, Schedule 4ZA
• Finance Act 2003, Schedule 4ZA, paragraph 3(6)
• Finance Act 2003, Schedule 4ZA, paragraphs 3(7)–(9)
• 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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