Selling your old home before buying a new one: higher LTT rates
In brief
When you sell your old main home before buying another, the higher LTT rates may not apply. This can be so even if you own other property.
- The old home sale normally must be within three years of the new purchase.
- You must keep no major interest in the old home after its sale.
- The new property must be intended as your only or main home.
Scroll down for the full analysis.
Read the original guidance here:
Selling your old home before buying a new one: higher LTT rates
Selling your old home before buying a new one: higher LTT rates
If you sell your old main home before buying another, you may pay the main Land Transaction Tax rates rather than the higher rates, even if you continue to own other properties. You may still own other properties. Land Transaction Tax replaced stamp duty land tax in Wales in 2018.
What this rule is about
Purchases of extra homes can attract higher LTT rates. An exception can apply if the purchase replaces the home in which you live.
Where the old home has already been sold when you complete the new purchase, timing matters because that is the point at which this part of the rule must be checked. Other properties alone do not prevent it.
What the official source says
The Welsh Revenue Authority says that you can pay the main rates if you sold your former main home before buying the new one, provided every condition is met. Every condition remains important. The usual period is the three years ending on the effective date of the new purchase. That date is normally completion.
- On the effective date, you must intend the new property to be your only or main home rather than another property at that time.
- You, or your spouse or civil partner at the time, must have sold a major interest in a former main home.
- The former main-home sale must take place within the three years ending on the effective date of the new purchase.
- Once that sale has completed, you must not retain a major interest in the old home or in any garden or grounds that formed part of it.
- Nor may a spouse or civil partner with whom you are living together retain such an interest.
- Between the sale and the new purchase, neither of you can buy another property intending it to be your main home.
A major interest will usually mean freehold ownership or a leasehold interest. The old home must be sold completely, rather than partly retained.
What this means in practice
This is a rule about replacing your home. It does not demand that you own only one property. You may own other homes when you buy the new one. The sale of the old main home may still permit the main rates.
The distinction can seem slight. It can have a major effect on the LTT due at completion.
- Check the completion date for the old home, not just the date you accepted an offer.
- Check the completion date for the new home.
- Count back three years from the new purchase’s effective date.
- Check whether you kept any share, garden or land connected with the old home.
- Check property purchases by a spouse or civil partner who was living with you.
- Keep documents that support your plan to make the new property your home.
How to analyse it
Start with the old home. During the permitted period, was it your only or main home at any point? Then follow the timeline through to the new purchase.
- Identify the date the old home was sold.
- Identify the effective date of the new purchase, normally the completion date.
- Ask whether the old home was your only or main home during the relevant period.
- Ask whether, on that date, you intended the new property to be your only or main home rather than any other property.
- Confirm that no interest in the old home or its grounds remained after the sale.
- Check whether you or a spouse or civil partner bought an intervening intended main home.
- Consider, too, whether you and a spouse or civil partner were living together on the date of the new purchase.
Do not ask only, “Do I own two homes?” That is not the full question. The sale history, dates and intended use of the new home all matter.
Example
Rhodri sells the house in which he has been living on 10 October 2023. He retains no share, including no part of its garden. He owns a separate holiday flat. He completes on 9 October 2026. He intends the new house to be his main home. He has not bought another intended main home in between.
The sale is timely. It falls within the three years ending on the effective date of the new purchase. The holiday flat does not, by itself, prevent the replacement-main-home exception. Rhodri can come within the main-rates route if all conditions are met.
Why this can be difficult in practice
People often concentrate on the number of properties they own. As a result, they may overlook the exception. Retained shares, a spouse’s position, and whether the property was genuinely intended as the main home often create the harder questions.
The official source sets out the normal three-year period. The legislation now also provides a narrow possible extension where a relevant restriction had a substantial adverse effect on buying a replacement home, and the purchase is entered into as soon as reasonably practicable. It remains narrow.
- A retained share in the old home can prevent the standard exception.
- Land or a garden kept after the sale may also matter.
- A spouse’s retained interest can matter where the couple are living together.
- Being married does not always mean a couple counts as living together for this rule.
- An intention to live in the new home should match the facts and available evidence.
- The later extension is not a general right to extra time.
Key takeaways
- Selling your old main home first can mean the main LTT rates apply.
- You can still own other properties if the replacement-home conditions are met.
- Check the dates, retained interests and any intervening intended main-home purchase.
Technical analysis
For advisers, and for anyone who wants to check the law behind this page. You do not need this section to understand the guidance above.
Legislation
- LTTA 2017 Schedule 5 para 3 — when higher residential rates apply and exceptions operate
- LTTA 2017 Schedule 5 para 8 — replacement of a main residence exception conditions; extended period after a relevant restriction; separated spouses and retained interests
- LTTA 2017 section 68 — what counts as a major interest in land
- LTTA 2017 section 71 — the normal effective date of a transaction
Official guidance
The pages below are the Welsh Revenue Authority’s guidance. Guidance is not law. It sets out how the Welsh Revenue Authority reads the legislation, and it is not binding on you, on a tribunal or on a court. Where guidance and the legislation differ, the legislation wins. the Welsh Revenue Authority can also change or withdraw guidance, and it may not cover your facts.
- Welsh Revenue Authority, Higher rates purchases of residential property technical guidance, LTTA/8110
Where this is not settled
- Whether a property was genuinely a person’s only or main home is fact-sensitive.
- Whether a buyer intended the new property to be their only or main home depends on the evidence available at the time.
- The supplied official guidance does not address the later statutory extension for a relevant restriction, so its current coverage should be checked.
Evidence you would need
This kind of case is decided on the facts of the individual property. These are the records that usually settle it, and the ones an adviser would ask you for.
- Completion statements and sale documents for the former home.
- Documents showing the dates of the sale and new purchase.
- Evidence that the former home was used as the main home.
- Evidence of the intention to live in the new home as the main home.
- Records of any property bought between the sale and the new purchase.
- Information about a spouse or civil partner’s ownership and whether they were living with the buyer.
Explore this with an AI
Readers often want to test their own situation. Copy the prompt below into ChatGPT, Claude or Gemini. It hands the model the actual legislation for this page rather than letting it answer from memory, and tells it to be explicit about what is uncertain. What comes back is information, not advice – check it against the links above.
I am researching Land Transaction Tax (LTT), the tax on property in Wales. It replaced Stamp Duty Land Tax in Wales on 1 April 2018, and SDLT does not apply in Wales. MY QUESTION Selling your old home before buying a new one: higher LTT rates [Replace this with your own situation: what you are buying, the price, the dates, who the buyer is, and what you plan to do with the property.] THE LAW THIS TURNS ON - LTTA 2017 Schedule 5 para 3 - when higher residential rates apply and exceptions operate https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/3 - LTTA 2017 Schedule 5 para 8 - replacement of a main residence exception conditions https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/8 - LTTA 2017 Schedule 5 para 8 - extended period after a relevant restriction https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/8 - LTTA 2017 Schedule 5 para 8 - separated spouses and retained interests https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/8 - LTTA 2017 section 68 - what counts as a major interest in land https://www.legislation.gov.uk/anaw/2017/1/section/68 - LTTA 2017 section 71 - the normal effective date of a transaction https://www.legislation.gov.uk/anaw/2017/1/section/71 Guidance page from the Welsh Revenue Authority on this topic (guidance, not law): https://www.gov.wales/higher-rates-purchases-residential-property-technical-guidance#5229 HOW I WANT YOU TO ANSWER 1. Work from the legislation above. Read it before answering. Guidance from the Welsh Revenue Authority is its view of the law, not the law, and does not bind a tribunal or a court. 2. Tell me what the rule actually requires, in plain English. 3. Tell me which facts decide the answer, and which facts would change it. 4. Tell me what evidence I would need to support the position. 5. Be explicit about anything unsettled or fact-sensitive. Do not guess. 6. Your training data has a cutoff and SDLT rates and reliefs change at fiscal events. Say so if you are not sure the law is current. POINTS ALREADY KNOWN TO BE UNCERTAIN ON THIS TOPIC - Whether a property was genuinely a person's only or main home is fact-sensitive. - Whether a buyer intended the new property to be their only or main home depends on the evidence available at the time. - The supplied official guidance does not address the later statutory extension for a relevant restriction, so its current coverage should be checked. Do not give me a conclusion you cannot support from the provisions above.
Legislation links show the Land Transaction Tax and Anti-avoidance of Devolved Taxes (Wales) Act 2017 as it stood on 2025-11-17. The law may have changed since, and the rules that apply are those in force on the date of your transaction. The official guidance this page is based on is here.
This page was last updated on 4 September 2026
Useful article? You may find it helpful to read the original guidance here: Selling your old home before buying a new one: higher LTT rates
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