Can you reclaim the SDLT higher rates surcharge if you sell your old home later?

Introduction

Many buyers pay the higher rates of Stamp Duty Land Tax when they purchase a new home before selling their previous main residence. A common question is whether that extra SDLT can be reclaimed later, and what exactly counts as a qualifying disposal of the old home.

This issue often becomes more complicated where the old property is being kept for a period, let out, transferred to another person, or sold to a company connected with the owner. The timing rules matter, and so does the way the previous home is disposed of.

This article explains the main refund rules under Finance Act 2003, Schedule 4ZA, including the disposal deadline, the claim deadline, what counts as a disposal, and how a sale to a connected company is usually treated for SDLT purposes.

The Question

A homeowner bought a new main residence and paid the higher rates of SDLT because they still owned their previous main residence at completion. They now want to know:

• how long they have to dispose of the previous home in order to claim a refund of the higher rates charge;
• how long they have to submit the refund claim after that disposal;
• whether a sale to a third party, a gift, or a sale to their own company can count as a qualifying disposal;
• whether keeping any legal or beneficial interest in the old home would prevent the refund;
• how the spouse or civil partner rules affect the position; and
• whether the company buying the property would itself face SDLT at the higher residential rates.

Nick’s Explanation

Nick’s core explanation was that the refund rules sit in Finance Act 2003, Schedule 4ZA. In summary:

• the previous main residence normally must be disposed of within 36 months of completion of the new main residence;
• the refund claim must normally be made within 12 months of the disposal, or within 12 months of the filing date for the SDLT return on the new home, whichever is later;
• a normal sale to a third party can qualify;
• a sale to the buyer’s own company can also qualify as a disposal if the whole legal and beneficial interest is transferred and the connected-party market value rule is satisfied;
• if the individual retains any major interest, the disposal may fail for refund purposes; and
• spouses and civil partners are generally treated as one unit under Schedule 4ZA.

Nick also noted that where a connected company buys the old dwelling, section 53 FA 2003 generally requires market value to be used for SDLT purposes.

The Law

The higher rates for additional dwellings are contained in Finance Act 2003, Schedule 4ZA. Where a buyer purchases a new dwelling intended to be their only or main residence but has not yet disposed of their previous main residence, the purchase may still be charged at the higher rates at completion.

A refund may then be available if the statutory replacement of main residence conditions are later met.

The key provisions are:

• Schedule 4ZA, paragraph 3(6): the previous main residence must generally be disposed of within 36 months after the purchase of the new main residence;
• Schedule 4ZA, paragraph 3(7): the refund claim must generally be made within 12 months of the disposal, or within 12 months of the filing date for the SDLT return on the new purchase, whichever is later;
• Schedule 4ZA, paragraphs 3(6B) to 3(6D): HMRC may allow a longer period in certain exceptional circumstances beyond the buyer’s control;
• Schedule 4ZA, paragraph 2: the legislation looks at whether a person holds a major interest in a dwelling;
• Schedule 4ZA, paragraph 9: spouses and civil partners are treated together for these purposes in many cases;
• section 53 FA 2003: where a land transaction is between connected persons and involves a company, market value rules may apply.

If the issue also involves whether a property was 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 substantial disrepair does not automatically take a property outside dwelling treatment.

Analysis

The rules can be applied step by step.

First, identify whether the new purchase was a replacement of main residence in substance, but one where the old home had not yet been sold at completion. If so, the higher rates may have been charged correctly at the time of purchase, but a later refund may still be possible.

Secondly, calculate the 36-month disposal window. If the new main residence completed on 22 October 2025, the old main residence must normally be disposed of by 21 October 2028.

Thirdly, work out the claim deadline. If the disposal took place on the last possible day, 21 October 2028, the claim would normally need to be made by 21 October 2029, assuming that is later than 12 months from the filing date for the SDLT return on the new purchase.

Fourthly, consider what counts as a disposal. A straightforward open-market sale to an unconnected third party is the clearest example of a qualifying disposal.

A transfer of the whole interest by way of gift to an unconnected person may also count, provided the seller truly ceases to hold the relevant interest. The important point is that the previous main residence must actually be disposed of; the legislation is concerned with the ending of ownership of the relevant major interest.

A sale to the owner’s own company can, in principle, still be a disposal for refund purposes. However, that route needs care:

• the transfer must be genuine;
• the whole legal and beneficial interest should pass to the company;
• the seller should not retain a continuing beneficial stake in the dwelling that means they still hold a major interest; and
• because the company is connected, SDLT is generally tested by reference to market value under section 53 FA 2003.

Fifthly, retaining an interest can be fatal. If the former owner keeps part ownership, reserves rights amounting to a continuing major interest, or structures matters so that they still effectively hold the dwelling, the disposal may not qualify. The exact effect of a charge or other retained rights depends on the legal substance, but if the arrangement means the person still has the relevant interest in the dwelling, the refund position is at risk.

Sixthly, spouses and civil partners must not be overlooked. Schedule 4ZA generally treats them as one unit. So if one spouse or civil partner retains or acquires a relevant interest in the old dwelling, that can affect whether the replacement of main residence conditions are met.

Seventhly, if the old property is sold to a company, that does not usually prevent the individual from claiming their own refund on the new home, provided the statutory replacement conditions are otherwise satisfied. But the company’s purchase is a separate land transaction. If the property is residential, the company will normally be charged SDLT under the rules applicable to companies, including the higher rates for additional dwellings where relevant. In many connected-party cases, the charge is calculated by reference to market value rather than the amount actually paid.

Eighthly, if the 36-month disposal deadline is missed, all is not necessarily lost. Schedule 4ZA allows for extensions in limited exceptional circumstances beyond the buyer’s control. Evidence would usually need to show both:

• that the delay was caused by something outside the buyer’s control; and
• that the buyer intended to dispose of the former main residence and acted promptly once the obstacle ended.

Examples may include serious legal barriers to sale or external restrictions preventing completion. Ordinary delay, indecision, or a wish to wait for a better market is unlikely to be enough.

Outcome

The practical answer is:

• yes, a refund of the higher rates SDLT can be available where the old main residence is sold after the new one is bought;
• the old main residence must normally be disposed of within 36 months of the new purchase;
• the refund claim must normally be made within 12 months of that disposal, or within 12 months of the filing date for the SDLT return on the new purchase, whichever is later;
• a normal sale to a third party is the simplest qualifying route;
• a sale to the owner’s own company can still count as a disposal, but the transfer must be complete and genuine, and the company will usually face its own SDLT charge based on market value;
• retaining a relevant interest in the old dwelling can prevent the refund; and
• the spouse or civil partner rules must be checked carefully.

On the example dates discussed here, a purchase completed on 22 October 2025 would usually require disposal of the former main residence by 21 October 2028, with a latest claim date of 21 October 2029 if the disposal occurred on that final day.

Practical Steps

If you are assessing your own position, the main steps are:

1. Confirm the completion date of the new main residence.
2. Check whether the old property was in fact your previous only or main residence for Schedule 4ZA purposes.
3. Diary the 36-month disposal deadline immediately.
4. Decide whether the disposal will be an open-market sale, a gift, or a transfer to a connected company.
5. If a company purchase is being considered, obtain advice on the SDLT cost to the company and on the market value rule in section 53 FA 2003.
6. Make sure the whole legal and beneficial interest is transferred if you are relying on that disposal for a refund.
7. Review whether a spouse or civil partner holds or will hold any interest that could affect the claim.
8. Keep the key documents, including the SDLT return and SDLT certificate for the new purchase, completion statements, transfer deed, sale evidence, and evidence showing occupation of the new home as the main residence.
9. If there has been a delay caused by exceptional circumstances beyond your control, gather documentary proof of the obstacle and evidence showing you acted promptly once it ended.
10. Submit the refund claim within the statutory time limit.

Conclusion

If you buy a new main residence before selling the old one, paying the higher rates SDLT at completion does not necessarily end the matter. A refund may still be available if you dispose of the former main residence within the statutory window and make the claim on time. A third-party sale is usually the cleanest route. A sale to your own company can work for refund purposes, but it raises separate SDLT issues for the company and needs careful structuring to ensure you do not retain a disqualifying interest.

Legal References Used

• Finance Act 2003, Schedule 4ZA
• Finance Act 2003, Schedule 4ZA, paragraph 1(2)
• Finance Act 2003, Schedule 4ZA, paragraph 2
• Finance Act 2003, Schedule 4ZA, paragraph 3(6)
• Finance Act 2003, Schedule 4ZA, paragraph 3(7)
• Finance Act 2003, Schedule 4ZA, paragraphs 3(6B) to 3(6D)
• Finance Act 2003, Schedule 4ZA, paragraph 9
• Finance Act 2003, section 53
• Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799

This page was last updated on 22 March 2026.

See all questions and answers categorized in this sitemap. Or use Google site search below.