Claiming back higher LTT after selling your old home
Higher LTT refund
You may usually claim back higher LTT if you bought a new main home before selling your old one, then sell the old main home within three years.
- The refund is the difference between higher and main LTT rates.
- You and your spouse or civil partner must not retain any share in the old home.
- Higher LTT must not apply for another reason.
Scroll down for the full analysis.
Read the original guidance here:
Claiming back higher LTT after selling your old home
If you paid higher Land Transaction Tax (LTT) because your old home had not sold, you can usually claim back the extra tax after it sells within three years. This is not automatic. Land Transaction Tax replaced Stamp Duty Land Tax in Wales.
What this rule is about
Moving home does not always happen on one day. You may buy your new home first, while still owning your old one. In that position, higher LTT can apply when you buy. That can mean a much larger bill.
The result can change once you sell your old home. The law may treat the new home as replacing the home where you lived. That is the basis for a repayment.
What the official source says
Welsh Revenue Authority guidance says you can usually apply for a refund if you sell your previous main home within three years of buying your new main home. The refund is the difference between higher-rate LTT and main-rate LTT.
- You bought a new home to be your main home.
- You paid higher LTT because the old home had not sold.
- You sell the previous main home within three years.
- You and your spouse or civil partner no longer own any part of it.
- Higher LTT does not still apply for another reason.
What this means in practice
At the end of completion day, what matters first is what you own, because higher LTT can apply to the new purchase if you still own your old home then. Claim the refund later.
The Welsh Revenue Authority provides a refund application service and an LTT calculator. The calculator can help show the gap between the two LTT amounts. Keep the figures from your original return.
- Pay the higher amount if it applies when you buy.
- Keep records of both completion dates.
- Check the main-rate and higher-rate calculations.
- Use the Welsh Revenue Authority refund process after the sale.
How to analyse it
Start with the old home, not just the new one. Ask whether it was the home you actually lived in. Then check the dates and ownership position carefully.
- Did you buy the new property as your new main home?
- Did you still own the old home on completion day?
- Was the old property your previous main home?
- Was it sold within three years of the new purchase?
- Do you, or a spouse or civil partner, still own a share?
- Is there another reason why higher LTT still applies?
Example
Imagine higher-rate LTT on Priya’s new home was calculated as £12,000. The main-rate calculation was £7,000. Within three years, Priya sells her old main home and keeps no share in it, so long as no other higher-rate rule applies. The refund would usually be £5,000.
Why this can be difficult in practice
Looking only at the sale date is not enough, because the old property must have been your main home and nobody caught by the rule can still own part of it. Ownership matters too.
A longer period may apply in certain cases. The official source does not give the details on this page. Check the Welsh Revenue Authority’s higher-rates technical guidance before relying on extra time.
- Owning even a small share can prevent a refund.
- A spouse or civil partner’s ownership can matter too.
- A second reason for higher LTT can block the repayment.
Key takeaways
- After selling your old main home within three years, you may usually reclaim higher LTT.
- The repayment is the difference between higher-rate and main-rate LTT.
- Check ownership, dates and any other reason for higher LTT.
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 a single-home purchase can face higher rates
- LTTA 2017 Schedule 5 para 5 — owning another home at the end of completion day
- LTTA 2017 Schedule 5 para 8 — selling an old main home after buying a replacement
- LTTA 2017 Schedule 5 para 23 — routes to repayment after higher rates cease to apply
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 main home can depend on the facts.
- The source does not explain which situations qualify for a longer sale period. The Welsh Revenue Authority’s technical guidance 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 dates for the new and old homes
- evidence that the old home was your main home
- evidence of who owned the old home before and after its sale
- the LTT calculation and return for the new-home purchase
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 Claiming back higher LTT after selling your old home [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 a single-home purchase can face higher rates https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/3 - LTTA 2017 Schedule 5 para 5 - owning another home at the end of completion day https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/5 - LTTA 2017 Schedule 5 para 8 - selling an old main home after buying a replacement https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/8 - LTTA 2017 Schedule 5 para 23 - routes to repayment after higher rates cease to apply https://www.legislation.gov.uk/anaw/2017/1/schedule/5/paragraph/23 Guidance page from the Welsh Revenue Authority on this topic (guidance, not law): https://www.gov.wales/higher-rates-land-transaction-tax-guide#26740 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 main home can depend on the facts. - The source does not explain which situations qualify for a longer sale period. The Welsh Revenue Authority's technical guidance 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: Claiming back higher LTT after selling your old home
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