LTT refund when you sell your old home after buying a new one
Buying before selling your old home
You may pay higher LTT when you own both homes on the new purchase date. A later sale can allow repayment if the conditions and deadlines are met.
- The usual sale period is three years from the day after the new purchase’s effective date.
- The old property must have been your main home in the required earlier period.
- You must use an amendment or repayment claim within its time limit.
Scroll down for the full analysis.
Read the original guidance here:
LTT refund when you sell your old home after buying a new one
LTT refund when you sell your old home after buying a new one
If you buy a new home before selling your old one, you may pay the extra 5% on a second home at first. That does not always settle the matter. If you then sell your old main home in time and meet the other conditions, you may be able to get back the extra Land Transaction Tax (LTT) paid.
What this rule is about
Land Transaction Tax replaced stamp duty land tax in Wales in 2018. The higher LTT rates can apply when you own another home at the end of the effective date for your purchase.
That can catch people who are moving house. On the day they buy, they own both homes. They may therefore pay more LTT, even though the overlap is temporary.
Buying first can still replace your home. The later sale is what can change the result.
What the official source says
The Welsh Revenue Authority’s technical guidance describes the usual position. You initially pay the higher rates because you still own, or are treated as owning, the old home on the effective date of the new purchase.
Once the old home is sold, the purchase may become a replacement of your main home. The conditions all matter.
- On the effective date, you intended the new property to be your only or main home.
- The old-home interest must be sold. The seller may be you, your spouse, former spouse, civil partner or former civil partner.
- The sale must occur within three years. That period begins the day after the effective date of the new purchase.
- The old property was your main home at some point in the three years before the new purchase.
- You hold no interest in that old home after the sale.
- A separated spouse or civil partner may retain an interest where they no longer live with you.
If those conditions are met, the repayment is the difference between the higher LTT paid and the LTT that would have been due at the main rates.
What this means in practice
Paying the higher rates when you buy does not mean you have lost the money for good. It may simply reflect what you owned on that date.
But the repayment is not automatic. You need to use the right route and meet its deadline.
- If the return can still be amended, you may amend it within 12 months of its filing date.
- If that amendment period has passed, you may make a repayment claim instead.
- Claims have a four-year deadline after filing. The period starts the day after the filing date for the original return.
- Keep the original return, proof of payment and documents for both transactions.
This is the part people can miss: the deadline for selling the old home and the deadline for correcting the tax position are different deadlines.
How to analyse it
Start with the two dates. Then work through the facts in order, rather than relying on what the move was meant to achieve.
- What was the effective date of the new purchase?
- Did you own an interest in the old home at the end of that date?
- Did you intend to live in the new property as your only or main home?
- When did the sale of the old home take effect?
- Was that sale within the usual three-year period?
- Had the old home been your main home during the three years before the new purchase?
- Did you keep any interest in it after the sale?
- Are you still within the time for an amendment or repayment claim?
What actually decides the answer? The dates, your main-home history and what interest remained after the sale. A label on a property is not enough.
Example
Asha buys a new home on 1 June 2023. She still owns the home where she has been living, so she pays LTT at the higher rates on the new purchase. She sells the old home on 30 May 2026 and keeps no interest in it.
That sale is within the usual three-year period, which begins on 2 June 2023. If the old home was Asha’s main home during the required earlier period and she intended to make the new property her main home, the purchase may count as a replacement. She may amend. Or she may make a repayment claim. Both depend on the relevant tax deadline.
Why this can be difficult in practice
Moving homes is rarely as tidy as the rule sounds. A delayed sale, a retained share, or a change in where you live can alter the answer.
You might think selling most of the old home is enough. It may not be, because the source requires you to hold no interest after the sale, apart from the stated separated-spouse or civil-partner situation.
- Temporary stays elsewhere can make main-home evidence less clear.
- Joint ownership can make it harder to show what interest each person kept.
- Marriage, civil partnership and separation can affect whose ownership is considered.
- A sale that completes just after the usual deadline needs careful checking.
- The current legislation has narrow extensions for some relevant restrictions and fire safety defects, but the supplied official page does not set out their full detail.
Key takeaways
- Buying before selling can mean higher LTT is paid first.
- Selling the old main home in time can turn the purchase into a replacement.
- Check both the sale deadline and the deadline for changing the tax result.
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 can apply
- LTTA 2017 Schedule 5 para 5 — owning another home on the key date
- LTTA 2017 Schedule 5 para 8 — selling an old home after buying; the normal deadline for the later sale; longer deadline after relevant restrictions; longer deadline for certain fire safety defects
- LTTA 2017 Schedule 5 para 23 — changing a return or claiming repayment
- TCMA 2016 section 41 — time limit for amending a tax return
- TCMA 2016 section 63 — claims for repayment of overpaid tax
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.
Where this is not settled
- Whether a property was a person’s only or main home is fact-sensitive.
- The supplied WRA page states the standard three-year rule but does not explain the later statutory extensions in detail.
- The available skills did not contain the requested currency notice, so the recorded currency date of the statutory library could not be verified.
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.
- The contract and completion details for the new purchase and old sale.
- Evidence of the intended use of the new property as the main home.
- Evidence showing when the old property was the main home.
- Land Registry records or sale documents showing that no interest was retained.
- The original LTT return, payment record and filing date.
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 LTT refund when you sell your old home after buying a new one [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 can apply https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/3 - LTTA 2017 Schedule 5 para 5 - owning another home on the key date https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/5 - LTTA 2017 Schedule 5 para 8 - selling an old home after buying https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/8 - LTTA 2017 Schedule 5 para 8 - the normal deadline for the later sale https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/8 - LTTA 2017 Schedule 5 para 8 - longer deadline after relevant restrictions https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/8 - LTTA 2017 Schedule 5 para 8 - longer deadline for certain fire safety defects https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/8 - LTTA 2017 Schedule 5 para 23 - changing a return or claiming repayment https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/23 - TCMA 2016 section 41 - time limit for amending a tax return https://www.legislation.gov.uk/anaw/2016/6/section/41 - TCMA 2016 section 63 - claims for repayment of overpaid tax https://www.legislation.gov.uk/anaw/2016/6/section/63 Guidance page from the Welsh Revenue Authority on this topic (guidance, not law): https://www.gov.wales/higher-rates-purchases-residential-property-technical-guidance#5240 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 a person's only or main home is fact-sensitive. - The supplied WRA page states the standard three-year rule but does not explain the later statutory extensions in detail. - The available skills did not contain the requested currency notice, so the recorded currency date of the statutory library could not be verified. 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: LTT refund when you sell your old home after buying a new one
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