Can you reclaim the higher SDLT rates when buying a property with multiple dwellings and moving into just one of them?

Introduction

This is a common Stamp Duty Land Tax (SDLT) question where a buyer purchases a single freehold containing several dwellings, pays the higher residential rates because they still own their existing home, and then plans to move into one part of the new property as their replacement main residence.

Many people become confused by HMRC guidance on multiple dwellings, especially where the property does not fall within the “principal dwelling and subsidiary dwellings” rules. The important point is that HMRC manuals and flowcharts are not the law. The answer depends on the Finance Act 2003, particularly the rules in Schedule 4ZA on the higher rates for additional dwellings.

The Question

A buyer is considering purchasing a single freehold title containing four self-contained dwellings within one converted building. The buyer will complete the purchase before selling their current home. They intend to move into one of the four dwellings as their new main residence and may later rent out the others.

The buyer wants to know:

• whether the higher SDLT rates paid on completion can later be reclaimed once the old main residence is sold within three years;
• whether the purchase is still residential if some of the dwellings do not yet have separate leasehold titles;
• whether later granting leases or physically combining units would reopen the original SDLT calculation; and
• whether the other dwellings can be rented out while all remain under one freehold title.

Nick’s Explanation

Nick’s central point was that the legislation, not HMRC’s flowcharts, determines the answer. In anonymised form, his explanation was:

“Under Schedule 4ZA to the Finance Act 2003, if you buy your new main residence and then dispose of your previous main residence within three years, you are treated as replacing your main home and can reclaim the higher rates you paid on completion. The fact that you are buying four dwellings in a single transaction does not, in law, prevent the replacement-of-main-residence refund. What matters is that one of the purchased dwellings becomes your only or main residence and you sell your former main residence within the three-year window.”

He also explained that:

• the absence of separate leasehold titles does not stop the property being residential for SDLT purposes;
• granting leases later is a separate land transaction and does not recalculate the SDLT on the original purchase;
• physically merging two units does not itself trigger SDLT if there is no separate chargeable land transaction; and
• letting out parts of the property under ordinary residential tenancies does not alter the original SDLT position.

The Law

The main legal provisions are in the Finance Act 2003.

• Section 55(4A) applies the higher residential rates by reference to Schedule 4ZA.

• Schedule 4ZA contains the rules for the 3 percentage point surcharge on additional dwellings and the refund mechanism where a buyer replaces their only or main residence.

• Section 116 defines “residential property”. Broadly, a building used or suitable for use as a dwelling is residential property, together with its garden or grounds.

• Section 44 fixes the effective date of the land transaction, which is the date by reference to which SDLT is generally assessed.

• Section 56 and Schedule 17A deal with leases as separate land transactions.

For the higher rates refund, the key legal idea is replacement of a main residence. If a buyer purchases a dwelling, pays the higher rates because they still own their previous main residence, and then disposes of that previous main residence within the permitted three-year period, a refund may be claimed if one of the acquired dwellings is the buyer’s only or main residence.

The legislation does not say that the refund is unavailable merely because several dwellings are bought in the same transaction. Nor does it require the purchased main residence to be the only dwelling in the transaction that satisfies HMRC’s administrative “tests”.

Analysis

Step 1: On completion, the buyer is likely to pay the higher residential SDLT rates.

That is because, at the effective date of the purchase, the buyer still owns their current home and is acquiring a major interest in one or more dwellings.

Step 2: The fact that the purchase includes four dwellings does not automatically block a refund.

This is the point that often causes difficulty. HMRC guidance sometimes directs readers through “test” questions in a way that suggests the number of dwellings or the subsidiary dwelling rules may decide the refund issue. But the statutory question is simpler: has the buyer replaced their only or main residence within the terms of Schedule 4ZA?

Step 3: If the buyer moves into one of the acquired dwellings as their only or main residence, that part of the test can be met.

It does not matter that the buyer rents out the other dwellings or that the acquired property is held under one freehold title. The legislation focuses on whether one of the purchased dwellings becomes the buyer’s only or main residence.

Step 4: If the previous main residence is sold within three years of the new purchase, the refund conditions can be satisfied.

That three-year period is critical. If the old home is disposed of within that period, the buyer may reclaim the additional SDLT paid under the higher rates rules, provided the other statutory conditions are met.

Step 5: The refund claim must then be made within the statutory time limit.

As Nick explained, the claim must generally be made within 12 months of the sale of the previous main residence, or within 12 months of the filing date for the SDLT return on the new purchase, whichever is later.

Step 6: The lack of separate leasehold titles does not change the residential character of the purchase.

If the building contains dwellings that are used or suitable for use as dwellings, the transaction is residential for SDLT purposes. Separate title numbers are not required for that conclusion.

Step 7: Later lease grants do not reopen the original SDLT assessment.

If, after completion, the owner grants leases of individual units, those lease grants are considered on their own footing. They do not cause HMRC to recalculate the SDLT already paid on the freehold purchase merely because the owner has reorganised occupation or title structure.

Step 8: Physical works, such as combining two flats into one dwelling, do not themselves create SDLT unless there is a separate chargeable transaction.

SDLT is a transaction tax. It taxes land transactions, not building works as such. So if two units are physically merged after acquisition, that does not by itself trigger SDLT on the original purchase.

Step 9: Letting out parts of the property under ordinary residential tenancies does not itself affect the original SDLT calculation.

That said, readers should distinguish SDLT from other taxes. Rental activity may have income tax consequences, and a later disposal may have capital gains tax consequences. Those are separate questions from the SDLT charged on the original acquisition.

Step 10: The “subsidiary dwelling” issue is relevant in some higher-rates cases, but it is not the controlling point here.

Where a transaction includes a principal dwelling and one or more subsidiary dwellings, the legislation can treat the purchase differently for higher-rates purposes. But where that rule is not available, it does not follow that a replacement-of-main-residence refund is impossible. The refund analysis still turns on Schedule 4ZA.

If any reader is considering whether a dwelling was unsuitable for use as a dwelling at the effective date, it is important to note that the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. Ordinary disrepair, dated condition, or the need for renovation will often not be enough. The question is whether the property truly failed the statutory standard of being suitable for use as a dwelling at the relevant date.

Outcome

In a case like this, the practical answer is usually:

• the buyer pays the higher residential SDLT rates on completion if they still own their previous home;
• the purchase remains a residential transaction even if some units do not have separate leasehold titles;
• the buyer can still qualify for a refund of the higher rates if they move into one of the acquired dwellings as their main residence and sell the previous main residence within three years; and
• later granting leases, renting out other units, or physically combining units does not by itself reopen the original SDLT calculation.

Practical Steps

If you are assessing a similar SDLT position, the sensible steps are:

1. Confirm how many dwellings are being acquired at the effective date and whether they are genuinely self-contained.

2. Check whether you will still own your previous main residence at completion. If yes, assume the higher rates may apply initially.

3. Identify which of the purchased dwellings will become your only or main residence.

4. Keep clear evidence of occupation, such as utility accounts, council tax records, electoral registration, insurance, and correspondence address changes.

5. Track the three-year deadline for selling your previous main residence.

6. Once the old home is sold, diarise the refund claim deadline carefully.

7. Separate SDLT questions from later tax issues such as rental income tax, capital gains tax, and any planning or title-structuring issues.

8. If you are contemplating an argument that part of the property was not suitable for use as a dwelling, test that carefully against the stricter approach confirmed in Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Conclusion

Buying several dwellings in one freehold purchase does not, by itself, stop a refund of the higher SDLT rates. If one of those dwellings becomes your new main residence and you sell your former main residence within three years, Schedule 4ZA may allow the surcharge to be reclaimed. The better approach is to read the statute first and treat HMRC’s flowcharts as guidance only.

Legal References Used

• Finance Act 2003, section 44
• Finance Act 2003, section 55(4A)
• Finance Act 2003, section 56
• Finance Act 2003, section 116
• Finance Act 2003, Schedule 4ZA
• Finance Act 2003, Schedule 17A
• HMRC SDLTM09766
• HMRC SDLTM09766A
• 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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