Do you pay higher SDLT when moving from tied accommodation into a home you buy?

Introduction

A common SDLT question arises where someone lives in accommodation provided by an employer, but also owns another residential property such as a buy-to-let. If they then buy a home to live in after retirement or a job change, they often ask whether they are replacing their main residence or buying an additional dwelling.

This matters because the higher rates for additional dwellings can apply even where the buyer has only ever actually lived in one home. The key issue is not just where the buyer lives, but whether they are disposing of a major interest in a previous main residence for SDLT purposes.

The Question

A married couple live in tied accommodation provided by an employer. They do not own that home. Separately, they own a buy-to-let flat, which they have never occupied as their residence and are trying to sell. They are now buying a house which will become their home once they leave the tied accommodation.

At the date of purchase of the new house, they will still own the buy-to-let flat, even though it is being marketed and a sale has been agreed or attempted. They want to know:

• whether the higher rates of SDLT apply to the purchase of the new home;
• whether HMRC can give a definitive ruling in advance; and
• whether there is any way around the surcharge if the buy-to-let sale completes shortly afterwards.

Nick’s Explanation

Nick’s core view was that the tied accommodation does not count as a disposal of a previous main residence because the couple do not own it. In anonymised form, his explanation was:

“You live in accommodation provided by your employer, which you do not own, so you are not replacing your main residence in SDLT terms. Because you still own the buy-to-let property when you buy the new home, the new purchase is treated as an additional property and the higher rate applies.”

He also explained that if the buy-to-let must be sold to fund the onward purchase, the practical route is usually to sell that property first if possible. If it is still owned on completion of the new home, the surcharge is generally due at that point.

In follow-up correspondence, Nick’s practical conclusion was that the only realistic option was to proceed by selling the buy-to-let and then moving ahead with the new purchase, rather than trying to restructure ownership at the last minute.

The Law

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

Broadly, the higher rates apply if, at the end of the effective date of the transaction:

• the buyer has a major interest in the dwelling being purchased;
• the buyer owns a major interest in another dwelling worth £40,000 or more; and
• the new purchase is not a replacement of the buyer’s only or main residence.

For married couples and civil partners living together, the rules generally apply on a combined basis. So if either spouse owns another dwelling, that can affect the SDLT position for both.

The replacement of only or main residence exception is crucial. In simple terms, it usually requires:

• the purchased dwelling to be intended as the new only or main residence; and
• the buyer to have disposed of a major interest in a previous only or main residence within the relevant time period.

The important point is that the buyer must dispose of a major interest in the former residence. Merely moving out of accommodation that was occupied as a home is not enough if the buyer never owned it.

HMRC’s published SDLT guidance reflects this approach. Occupation alone does not create a disposal for Schedule 4ZA purposes. There must be a disposal of a major interest in the former main residence.

Analysis

Step 1: Is the new house a dwelling being acquired by the couple? Yes. It is a residential purchase and will be their home.

Step 2: At completion, will they own another dwelling? Yes. They still own the buy-to-let flat until that sale actually completes.

Step 3: Does the fact that they live in tied accommodation mean they are replacing their main residence? Usually no, because they are leaving a home they occupy but do not own. SDLT looks for a disposal of a major interest in the old main residence. Surrendering occupation of employer-provided accommodation is not the same as disposing of an owned dwelling.

Step 4: Does an intended sale of the buy-to-let help? Not by itself. An intention to sell, a property being on the market, an accepted offer, or even a failed earlier sale does not change the SDLT test at the effective date of the new purchase. SDLT is determined by the facts as they stand on completion.

Step 5: Can the later sale of the buy-to-let generate a refund? In this scenario, generally no. The refund rules are aimed at cases where the buyer buys a new main residence before selling their former main residence. Here, the buy-to-let flat was never their residence. Selling it later does not amount to disposing of a former only or main residence, so the usual refund route is not available.

Step 6: Does it matter that the new property will become their only home after they leave the tied accommodation? In everyday terms it does, but for Schedule 4ZA the technical problem remains: they are not replacing an owned former main residence. They are acquiring a home while already owning another dwelling.

On those facts, the higher rates are likely to apply.

If the purchase price is £243,000 and the higher residential rates apply to the whole transaction, the SDLT figure may be around the amount identified by the conveyancer, depending on the rates in force on the effective date. The exact calculation should always be checked by reference to the completion date and the applicable SDLT bands at that time.

Some buyers in difficult timing situations ask whether a property can be treated as unsuitable for use so that it is ignored as a dwelling. That is a separate issue and would only matter if the property in question was genuinely not suitable for use as a dwelling at the effective date. The threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. Ordinary disrepair, inconvenience, dated condition, or a need for works will usually not be enough.

Outcome

Where buyers move from employer-provided tied accommodation that they do not own into a house they are buying, and they still own a buy-to-let at completion, the new purchase is usually treated as an additional dwelling for SDLT purposes.

That means the higher rates are likely to apply.

The fact that the tied accommodation was their real home in ordinary language does not by itself satisfy the replacement of main residence rules, because there is no disposal of a major interest in that accommodation.

The fact that the buy-to-let is being sold, or was expected to be sold first, does not normally change the SDLT result unless the sale actually completes before the new purchase completes.

Practical Steps

If you are in a similar position, the sensible steps are:

• check who owns what at the end of the day of completion of the new purchase;
• identify whether you are disposing of a major interest in a former only or main residence, not just moving out of it;
• ask your conveyancer to calculate SDLT on the basis of the exact completion date and rates then in force;
• if you think the replacement exception may apply, map the facts carefully against Schedule 4ZA rather than relying on intention or informal assumptions;
• if you want HMRC’s view, consider seeking non-statutory clearance only where the point is genuinely uncertain, bearing in mind that HMRC do not give advance rulings on every SDLT fact pattern;
• if cash flow is the issue, speak to your conveyancer early, because SDLT is normally payable shortly after completion and late payment can trigger interest and penalties;
• do not assume that a later sale of an investment property will produce a refund unless that property was in fact your former only or main residence for the purposes of the legislation.

Where timing is tight, the most important practical point is often simple: if avoiding the higher rates depends on a sale, that sale usually needs to complete before the purchase of the new home.

Conclusion

If you are leaving tied accommodation that you do not own and buying a home while still owning a buy-to-let, the higher SDLT rates will usually apply. The replacement of main residence exception normally does not help unless you are disposing of an owned former main residence. In cases like this, SDLT turns on legal ownership at completion, not on intention, fairness, or the fact that the overlap is temporary.

Legal References Used

• Finance Act 2003, Schedule 4ZA
• HMRC Stamp Duty Land Tax guidance on higher rates for additional dwellings
• 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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