Do you pay higher SDLT if you own other properties but do not currently own a main residence?

Introduction

This is a common stamp duty land tax question for people who sold their former home years ago, now live in rented accommodation, and also own one or more investment or inherited properties. The issue is whether buying a new home will trigger the higher rates of SDLT, and whether it helps to say that you do not currently own a main residence.

The short answer is usually yes: if you already own another dwelling and you buy a new one, the higher rates can still apply even if you do not currently own the home you live in. The replacement of a main residence rules are separate and narrower than many people expect.

The Question

A married couple previously sold the home they lived in and have since been renting their accommodation. During that time, they acquired other residential property interests, including a let property and shares in other let dwellings. They now want to buy a home to live in.

They want to know:

• whether they can avoid the higher rates of SDLT by saying they do not currently own a main residence;
• whether one of their existing properties can be treated as their main residence for SDLT purposes;
• whether they can write to HMRC in advance and rely on case law about residence; and
• whether they must pay the higher rates first and only reclaim them later if a qualifying disposal takes place.

Nick’s Explanation

Nick’s main point was that capital gains tax and SDLT are separate regimes. A property being, or not being, a main residence for capital gains tax purposes does not automatically decide the SDLT position.

In anonymised form, his explanation was:

“Capital gains tax rules and stamp duty land tax rules are quite separate, with little overlap between their case law.”

He also explained that if a buyer wants to say that a let property is in fact their only or main residence, HMRC may look closely at the facts, especially where the property has been run as an investment and the records do not obviously support owner-occupation.

On the SDLT position, Nick’s practical summary was:

• if the previous main residence is sold before the new purchase completes, the higher rates may be avoided if the replacement conditions are met;
• if the new purchase completes first, the higher rates may have to be paid up front, with a refund claim only if a qualifying former main residence is sold within the statutory time limit; and
• if the buyers simply own other dwellings and are not replacing a previous main residence, the higher rates still apply.

He also answered the follow-up question directly: even if a buyer says they have no current main residence, that does not by itself prevent the higher rates from applying. Owning another dwelling is enough to trigger the surcharge unless a specific exception applies.

The Law

The higher rates of SDLT for additional dwellings are set by Schedule 4ZA to the Finance Act 2003. Broadly, the surcharge applies where, at the end of the day of the transaction:

• the buyer owns a major interest in another dwelling worth £40,000 or more;
• the dwelling being bought is not subject to a lease with more than 21 years left to run in someone else’s hands; and
• the transaction is not excluded by one of the replacement of only or main residence rules or another specific exception.

For married couples and civil partners living together, the rules generally aggregate their positions. In practice, one spouse cannot usually avoid the surcharge by buying alone if the other spouse owns other residential property. The legislation treats them as a single unit for these purposes in many cases.

The key relieving rule is where the new purchase replaces the buyer’s only or main residence. That normally requires a disposal of a previous only or main residence, either before the new purchase or within the permitted period afterwards. If the old main residence is sold after the new purchase, the higher rates are usually paid first and reclaimed later if the statutory conditions are met.

The question whether a property is or was an only or main residence is factual. However, SDLT has its own statutory framework. It is a mistake to assume that a capital gains tax analysis automatically transfers across.

Where a property is said to be uninhabitable or not suitable for use as a dwelling, 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 authority makes clear that “not suitable for use” is not satisfied by ordinary disrepair, inconvenience, dated condition, or the need for works unless the facts reach a genuinely serious level.

Analysis

The SDLT analysis usually works in this order.

First, ask whether the property being bought is a dwelling. If it is a normal home purchase, the answer will usually be yes.

Second, ask whether, at the end of the day of completion, the buyer owns another dwelling worth at least £40,000. In the scenario described, the answer is yes because there are existing residential property interests. A share in a dwelling can count, and interests held by a spouse may also matter because of the married couple rules.

Third, ask whether the purchase is a replacement of an only or main residence. This is the critical point. It is not enough to say:

• “we live in rented accommodation now”;
• “we do not own our current home”; or
• “we have no owned main residence at present.”

Those facts do not create an automatic exemption from the surcharge. The legislation is concerned with whether the buyer owns other dwellings and, if so, whether the new purchase replaces a previous only or main residence that has been disposed of within the permitted time frame.

Fourth, consider whether one of the existing owned properties can genuinely be treated as the buyer’s only or main residence. That is possible in principle, but only if the facts support actual residence. A property that has been continuously let, financed and documented as an investment, and not occupied as the family home, is unlikely to be accepted as the buyer’s main residence merely because it would be tax-efficient to say so now.

Fifth, understand the practical filing position. SDLT is self-assessed. The return is filed on the basis of the facts and the law as they stand at completion. There is no general procedure by which a buyer simply writes to HMRC beforehand and shifts the burden by inviting HMRC to “prove otherwise”. If the return claims replacement treatment, that claim must be supportable. If HMRC opens an enquiry, the buyer must justify the filing position.

Sixth, keep CGT and SDLT separate. A property may be exposed to CGT because it is not the owner’s principal private residence, yet the SDLT issue on a later purchase is still governed by Schedule 4ZA. The taxes ask different questions for different purposes.

Finally, if a former only or main residence is sold after the new purchase, the higher rates are normally payable on completion and only recoverable later if the statutory refund conditions are met. The usual refund deadline is within 12 months of the sale of the former main residence, subject to the detailed statutory rules and HMRC process in force at the time.

Outcome

If you own another dwelling when you buy a new home, the higher rates of SDLT will usually apply even if you do not currently own the home you live in. Simply saying that you have no present owned main residence does not remove the surcharge.

You can usually avoid or recover the surcharge only if the purchase qualifies as a replacement of a previous only or main residence under the statutory rules. If there is no qualifying disposal of a former main residence, the surcharge normally sticks.

Trying to classify an investment property as your main residence is fact-sensitive and may attract HMRC scrutiny if the surrounding evidence points the other way.

Practical Steps

If you are in this position, take these steps before exchange or completion:

• list every residential property interest owned by either spouse or civil partner, including partial shares and inherited interests;
• identify which property, if any, has genuinely been your only or main residence in fact;
• check whether that residence has already been sold, or will be sold within the permitted refund window;
• do not assume that living in rented accommodation means the surcharge cannot apply;
• do not assume that CGT residence analysis decides the SDLT answer;
• make sure the SDLT return reflects a position that can be evidenced if HMRC enquires;
• if relying on replacement treatment, gather documents showing actual occupation and the timeline of disposal and purchase; and
• if there is any doubt, obtain transaction-specific SDLT advice before completion, because once the purchase has completed the filing position and cashflow consequences are much harder to manage.

Conclusion

Owning other residential property is enough to trigger the higher rates of SDLT on a new home purchase unless the transaction falls within a specific exception, most commonly the replacement of an only or main residence. Not owning your current home does not, by itself, prevent the surcharge from applying.

Legal References Used

• Finance Act 2003, Schedule 4ZA
• Frost v Feltham
• 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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