LTT transitional rules for the October 2022 rate change
Historic LTT transitional rules
For main residential purchases exchanged before 10 October 2022 and completed later, older LTT rates could sometimes be chosen. The result depended on substantial performance, later changes to the deal, and making the choice in the return.
- Check exchange, possession, payment and completion dates.
- Review any later contract change or transfer of rights.
- Do not assume an earlier exchange date decides the tax.
Scroll down for the full analysis.
Read the original guidance here:
LTT transitional rules for the October 2022 rate change
If you exchanged contracts before 10 October 2022 but completed later, the date you signed did not provide the whole answer. You may have been able to use the older Land Transaction Tax (LTT) rates. Land Transaction Tax replaced stamp duty land tax in Wales in 2018.
What this rule is about
Main residential property rates changed on 10 October 2022. The transitional rules addressed purchases that fell between the old and new dates.
The issue mattered because exchange and completion often take place weeks apart. Buyers could agree a purchase before a rate change and complete it afterwards.
In some cases, buyers had a route to the earlier rates. That route was not automatic.
What the official source says
The Welsh Revenue Authority’s technical guidance explains the 2022 Regulations. The 2022 Regulations allowed buyers to continue using the main residential rates that applied before 10 October 2022 in certain circumstances.
- Buyers who exchanged contracts and completed the purchase before 10 October 2022 used the earlier rates.
- Buyers who exchanged contracts before that date but completed on or after it had to use the new rates unless they made a valid choice.
- A choice was possible where the contract had been substantially performed before 10 October 2022.
- A choice was also possible where completion came later, provided no listed event happened on or after 10 October 2022.
- The choice had to appear in the LTT return or in an amendment to that return.
- You could not make the choice if it would increase the tax due.
Substantial performance has a specific legal meaning. It can happen when the buyer takes possession of all, or nearly all, of the property. It can also happen when the buyer has paid or provided all, or nearly all, of the amount due.
That is a key distinction: moving in or paying most of the price may matter even if the formal transfer happened later.
What this means in practice
For a purchase that completes late, start with the exchange date rather than only the completion date. Then check whether anything changed after 10 October 2022.
People often assume that an earlier exchange always protects the old rates. It does not. The rules also consider what happened after that date.
- Keep the contract showing when both sides exchanged.
- Check when the seller transferred the property.
- Check whether you took possession before 10 October 2022.
- Check whether you paid nearly all of the price before that date.
- Look for a change to the contract after 10 October 2022.
- Check whether anyone transferred rights under the contract to someone else.
- Compare the old and new calculations before making a choice.
Regulation 5 set important limits. A purchase that completed on or after 10 October 2022 had to use the new main residential rates if specified later events occurred.
- The parties changed a contract on or after 10 October 2022.
- Someone assigned rights under the contract on or after that date.
- Someone exercised an option, right of first refusal, or similar right on or after that date.
- A sub-sale, assignment or similar deal meant another person could demand a transfer of all or part of the property.
These rules stop an older contract date from deciding the result after the deal has materially changed. This is the part people can miss.
How to analyse it
Work through the facts in date order. Do not begin with the rate you would prefer to pay.
- Confirm that the main residential rates covered the purchase.
- Find the date when both sides exchanged contracts.
- Find the completion date.
- Ask whether substantial performance happened before 10 October 2022.
- Review every later change, assignment, option exercise or sub-sale.
- Compare the tax under each historic rate table.
- Record any valid choice in the return or an amendment.
What if the property deal was linked to another purchase? The official source says that, where one linked purchase uses the earlier main residential rates and another uses the later rates, the separate linked-transaction example in its calculation guidance should be followed.
Do not simply add two separate tax calculations. Linked purchases can require a different method.
Example
Illustration: Megan exchanged contracts to buy a home on 1 October 2022. Completion took place on 14 October 2022. Nothing in the contract changed, nobody took over her rights, and no option was used. Megan could choose the older main residential rates only if the other conditions for the transitional rules were met and using them did not increase her LTT.
Change one fact. If the parties varied the contract on 11 October 2022, the official guidance says the main residential rates in force from 10 October 2022 would apply to the purchase.
The example does not give a tax figure because the source does not state the historic rate bands. The calculation must use the relevant historic tables.
Why this can be difficult in practice
The dates can look simple. The paperwork may not be. A small amendment can matter, even where both sides view it as an administrative change.
Did the parties really make a variation, or did a document only record what they had already agreed? Did a payment amount to substantially all of the price? Those are fact questions.
- A completion date alone does not settle the October 2022 position.
- An exchanged contract alone does not settle it either.
- Possession before completion may be relevant.
- A later change to the deal can remove access to the earlier rates.
- The election was a choice in a return, not a separate informal request.
The official source also records a separate historic change to higher rates from 22 December 2020. For those purchases, it says the 2020 Regulations introduced the higher-rate table, which applied where the effective date was on or after that date. Usually, the effective date is the completion date, unless another rule changes it.
Key takeaways
- An exchange before 10 October 2022 did not automatically secure the older LTT rates.
- Later changes, assignments, options and sub-sales could require the new rates.
- A valid choice for older rates had to be made in the LTT return or an amendment.
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
- Land Transaction Tax (Tax Bands and Tax Rates) (Wales) (Amendment) Regulations 2022 reg. 4 — when pre-10 October 2022 main rates may apply (could not parse a provision)
- Land Transaction Tax (Tax Bands and Tax Rates) (Wales) (Amendment) Regulations 2022 reg. 5 — events that prevent use of the older rates (could not parse a provision)
- Land Transaction Tax (Tax Bands and Tax Rates) (Wales) (Amendment) Regulations 2022 reg. 6 — choosing the older main residential rates (could not parse a provision)
- Land Transaction Tax (Tax Bands and Tax Rates) (Wales) (Amendment) Regulations 2020 reg. 3(1) — new higher rates from 22 December 2020 (could not parse a provision)
- Land Transaction Tax (Tax Bands and Tax Rates) (Wales) (Amendment) Regulations 2020 reg. 5(1) — application of 2020 higher rates table (could not parse a provision)
- LTTA 2017 section 14 — when a contract has been substantially performed
- LTTA 2017 section 71 — the usual meaning of a transaction’s effective date
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 an arrangement amounts to a variation, assignment, sub-sale or similar transaction can depend on the documents and events.
- Whether a contract was substantially performed can depend on possession and payments made before 10 October 2022.
- This page explains historic transitional rules only. It does not confirm current LTT rates or bands.
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 signed contract and its exchange date
- The completion statement and completion date
- Any deed, side letter, variation or assignment
- Documents showing whether an option or similar right was used
- Evidence of possession or payments before 10 October 2022
- The LTT return and any amendment made to it
- Details of any linked property 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 LTT transitional rules for the October 2022 rate change [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 14 - when a contract has been substantially performed https://www.legislation.gov.uk/anaw/2017/1/section/14 - LTTA 2017 section 71 - the usual meaning of a transaction's effective date 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/calculation-land-transaction-tax-payable-technical-guidance 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 an arrangement amounts to a variation, assignment, sub-sale or similar transaction can depend on the documents and events. - Whether a contract was substantially performed can depend on possession and payments made before 10 October 2022. - This page explains historic transitional rules only. It does not confirm current LTT rates or bands. 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 transitional rules for the October 2022 rate change
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