Welsh Land Transaction Tax: when multiple dwellings relief applies before 13 February 2026
In short
The Welsh Revenue Authority example covers two neighbouring homes bought for £400,000 on 5 January 2026. It says higher LTT rates apply and uses the pre-13 February 2026 multiple dwellings relief approach.
- Two homes produce an average price of £200,000 each.
- The source does not give a final tax figure.
- Later rule changes need separate checking.
Scroll down for the full analysis.
Read the original guidance here:
Welsh Land Transaction Tax: when multiple dwellings relief applies before 13 February 2026
Welsh Land Transaction Tax: when multiple dwellings relief applies before 13 February 2026
For a Land Transaction Tax payment, known as Land Transaction Tax or LTT, the date matters. The official example says higher LTT rates apply when Mr A bought two neighbouring homes for £400,000 on 5 January 2026.
What this rule is about
Multiple dwellings relief provided a way to work out LTT when a purchase included more than one home. Instead of starting with the full price, you calculate the average paid for each home in the purchase.
That approach can change the tax result.
What the official source says
The Welsh Revenue Authority gives an example of a purchase before 13 February 2026 and considers the transaction under the rules that applied before that date. Mr A buys two neighbouring homes from one seller on the same day for £400,000 in total.
- The purchase date is 5 January 2026.
- Two homes are bought together.
- The total price is £400,000.
- The official example says higher LTT rates apply.
What this means in practice
For the relief calculation, divide the amount paid for the homes by the number of homes, work out the tax using that average, and then multiply the result back up. This is the method.
- Keep the price for each part of the deal.
- Check whether anything other than homes is included.
- Use the rules in force on the purchase date.
How to analyse it
Begin with the date. Next, identify each separate home in the deal. Then consider whether the purchases make up one linked arrangement and whether higher rates apply.
- Confirm the effective date of the purchase.
- Count the homes being bought.
- Work out the total price linked to those homes.
- Calculate the average price per home.
Example
Take the facts in the official example. Dividing £400,000 by two gives an average of £200,000 per home. Although the source sets out the average calculation, it does not show the final LTT bill, so adding one here would be unsafe. The source gives no final bill.
Why this can be difficult in practice
The example is simple, but real deals may not be. Deciding whether two buildings are separate homes, and whether purchases are linked, can affect the answer. Both questions matter.
- Neighbouring buildings do not automatically settle the issue.
- A mixed deal may need the price split fairly.
- Rules changed on 13 February 2026.
Key takeaways
- Check the purchase date first.
- The example averages £400,000 across two homes.
- Do not assume the same result after 13 February 2026.
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 section 29 — makes normal tax calculation subject to multiple homes relief
- LTTA 2017 Schedule 13 para 3 — identifies purchases that can use multiple homes relief
- LTTA 2017 Schedule 13 para 4 — defines amounts linked to the homes bought
- LTTA 2017 Schedule 13 para 5 — sets the overall multiple homes relief calculation
- LTTA 2017 Schedule 13 para 6 — calculates tax by averaging the homes’ purchase price
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
- The supplied official extract does not explain why the higher rates apply to Mr A.
- The statutory text records changes from 13 February 2026. The historic version and transitional rules need checking before relying on a calculation for a particular purchase.
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 completion or other effective date
- The number of separate homes bought
- The total amount paid and any amount for non-home property
- Whether the purchases were linked
- The rates and rules in force on the effective 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 Multiple dwellings relief: example before 13 February 2026 [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 section 29 - makes normal tax calculation subject to multiple homes relief https://www.legislation.gov.uk/anaw/2017/1/section/29 - LTTA 2017 Schedule 13 para 3 - identifies purchases that can use multiple homes relief https://www.legislation.gov.uk/anaw/2017/1/schedule/13/paragraph/3 - LTTA 2017 Schedule 13 para 4 - defines amounts linked to the homes bought https://www.legislation.gov.uk/anaw/2017/1/schedule/13/paragraph/4 - LTTA 2017 Schedule 13 para 5 - sets the overall multiple homes relief calculation https://www.legislation.gov.uk/anaw/2017/1/schedule/13/paragraph/5 - LTTA 2017 Schedule 13 para 6 - calculates tax by averaging the homes' purchase price https://www.legislation.gov.uk/anaw/2017/1/schedule/13/paragraph/6 Guidance page from the Welsh Revenue Authority on this topic (guidance, not law): https://www.gov.wales/land-transaction-tax-relief-multiple-dwellings-guide 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 - The supplied official extract does not explain why the higher rates apply to Mr A. - The statutory text records changes from 13 February 2026. The historic version and transitional rules need checking before relying on a calculation for a particular purchase. 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 3 September 2026
Useful article? You may find it helpful to read the original guidance here: Welsh Land Transaction Tax: when multiple dwellings relief applies before 13 February 2026
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