Can a husband claim first-time buyer relief if his wife already owns a flat?

Introduction

A common Stamp Duty Land Tax question arises where one spouse bought a property before marriage and the other spouse now wants to buy a home in their sole name. Many people assume that if the new buyer has never owned property personally, they can still qualify as a first-time buyer. For SDLT, that is often not how the rules work.

Where a married couple or civil partners are living together, SDLT can treat them as a single unit for certain purposes. That can affect both first-time buyer relief and the higher rates for additional dwellings.

The Question

One spouse bought a flat before the marriage and still owns it in their sole name. The other spouse now plans to buy a house for less than £400,000 in their sole name, with the mortgage also in their sole name. The question is whether that buyer can still be treated as a first-time buyer, or whether the existing flat owned by their spouse prevents that and causes the higher SDLT rates to apply.

Nick’s Explanation

Nick’s explanation was that, if the couple are married and living together at the effective date of the purchase, SDLT treats a dwelling owned by one spouse as being owned by both for the purposes of the higher rates rules. In practical terms, this means the buyer is treated as already owning another dwelling, even if they are not on the legal title or mortgage of the spouse’s flat.

He also explained that first-time buyer relief is not available if a purchaser has previously acquired a major interest in a dwelling, and the married couple rules prevent the buyer from being treated as a genuine first-time buyer in this scenario.

Nick further noted that, on a purchase price of £400,000, the SDLT position is materially different depending on whether the existing flat is still owned at completion:

• If the spouse still owns the flat and the higher rates apply, SDLT would be £30,000 using the rates stated in the original explanation.
• If the flat had been fully disposed of before completion and the higher rates did not apply, SDLT would be £10,000 using the rates stated in the original explanation.

His core conclusion was that the timing of any disposal of the existing flat is critical.

The Law

SDLT is charged under the Finance Act 2003. Section 42 provides for SDLT to be charged on land transactions, and section 49 defines a land transaction as an acquisition of a chargeable interest in land.

The higher rates for additional dwellings are contained in Schedule 4ZA to the Finance Act 2003. Paragraph 3 sets out the basic test for when the higher rates apply. Broadly, if at the end of the day of the transaction the purchaser owns an interest in another dwelling, the higher rates can apply.

Paragraph 9 of Schedule 4ZA contains the special rule for married couples and civil partners who are living together. It provides that where, at the effective date of the transaction, a person is married or in a civil partnership and living together with their spouse or civil partner, any dwelling owned by either of them is treated as being owned by both of them.

First-time buyer relief is provided by Schedule 6ZA to the Finance Act 2003. Paragraph 1(2) requires each purchaser to be a first-time buyer who has never previously acquired a major interest in a dwelling, whether alone or jointly, and whether by purchase, gift, inheritance or otherwise.

If a company buys a dwelling, paragraph 4 of Schedule 4ZA generally brings the purchase within the higher rates regime. So using a company does not usually avoid the surcharge.

Analysis

The starting point is that the intended buyer has never personally owned a property. If that were the only fact that mattered, first-time buyer relief might appear possible. However, SDLT looks beyond the legal title position when spouses are living together.

Step 1 is to identify whether the couple are married or civil partners and living together at the effective date of the purchase. If they are, paragraph 9 of Schedule 4ZA applies.

Step 2 is to ask whether either spouse owns another dwelling at that date. Here, one spouse already owns a flat. Because of paragraph 9, that flat is treated as being owned by both spouses for the purposes of the higher rates rules.

Step 3 is to apply paragraph 3 of Schedule 4ZA. At the end of the day of the new purchase, the buyer is treated as owning another dwelling already. That means the purchase is treated as an acquisition of an additional dwelling, so the higher rates apply unless an exception is available.

Step 4 is to consider first-time buyer relief. Relief under Schedule 6ZA is strict. It is intended only for buyers who have never previously had a major interest in a dwelling. In a married-couple scenario of this kind, the existing ownership position means the intended buyer cannot be treated as qualifying for first-time buyer relief.

Step 5 is to consider whether disposal of the existing flat changes the result. If the spouse’s flat is fully disposed of before completion of the new purchase, the higher rates may not apply, because at the end of the day of the transaction the buyer would no longer be treated as owning that other dwelling. Whether that changes the position on first-time buyer relief is a separate question, but in the scenario described in Nick’s explanation, the key practical point was that disposal before completion prevents the additional dwelling surcharge from arising.

Step 6 is to avoid a common misunderstanding. Putting the new purchase into a company does not sidestep the issue. Residential purchases by companies are generally subject to the higher rates under Schedule 4ZA.

This is not an “uninhabitable” or “not suitable for use” case, but readers sometimes ask whether poor condition can alter SDLT treatment. In such cases the condition threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Outcome

If one spouse already owns a flat and the couple are married and living together, the other spouse will not be able to buy a house in sole name and claim first-time buyer relief simply because they have never personally owned property before.

On the facts described, the buyer is treated as already owning another dwelling through their spouse. That means:

• first-time buyer relief is not available; and
• the higher SDLT rates for an additional dwelling are likely to apply unless the existing flat is fully disposed of before completion.

Practical Steps

Before exchange or completion, a buyer in this situation should check:

• whether they are married or in a civil partnership and living together for SDLT purposes;
• whether their spouse or civil partner owns any dwelling anywhere in the world;
• whether that existing dwelling will still be owned at the end of the day of completion;
• whether there will be a full disposal of the existing dwelling before completion of the new purchase;
• the SDLT calculation both with and without the higher rates, so the cost difference is clear before committing to the transaction; and
• whether any assumption about first-time buyer relief has been checked against Schedule 6ZA rather than relying on the fact that the buyer is purchasing in sole name.

It is also sensible to ensure the conveyancer has the full ownership history of both spouses, not just the named buyer, because SDLT returns can be wrong if only the legal title position is considered.

Conclusion

For SDLT, married couples living together are not assessed simply by looking at whose name is on the title deeds. If one spouse already owns a flat, the other spouse will usually be treated as owning it too for the additional dwelling rules. In this scenario, the new buyer cannot claim first-time buyer relief, and the higher SDLT rates are likely to apply unless the existing flat is fully disposed of before completion.

Legal References Used

• Finance Act 2003, section 42
• Finance Act 2003, section 49
• Finance Act 2003, Schedule 4ZA, paragraph 3
• Finance Act 2003, Schedule 4ZA, paragraph 4
• Finance Act 2003, Schedule 4ZA, paragraph 9
• Finance Act 2003, Schedule 6ZA, paragraph 1(2)
• 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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