When the SDLT anti-avoidance rules started
In short
HMRC says the SDLT anti-avoidance rules in sections 75A to 75C generally apply to relevant arrangements after 2pm on 6 December 2006.
- A contract substantially performed before that time has a stated exclusion from section 75A.
- An earlier contract may also be excluded, but only if regulatory conditions are met.
- For historic cases, build a full timeline from the original documents.
Scroll down for the full analysis.
Read the original guidance here:
When the SDLT anti-avoidance rules started
For old property arrangements, the key question may be the clock: did the relevant steps happen before or after 2pm on 6 December 2006? That time can decide whether the SDLT anti-avoidance rules in section 75A apply. It is not a current stamp duty rate rule. It is a rule about when these special rules began.
What this rule is about
Section 75A is aimed at linked arrangements that move land from one person to another but produce less SDLT than a direct sale would have produced. It can replace the steps actually taken with a made-up direct sale for SDLT purposes.
That may sound remote. It matters where an old deal involved several companies, contracts, leases or other connected steps. The dates of those steps can be as important as the paperwork itself.
What the official source says
HMRC’s manual says that sections 75A to 75C apply to disposals, purchases and all related scheme transactions that took place after 2pm on 6 December 2006. In other words, the expression covers every step in the wider arrangement; it does not refer solely to the property’s final transfer.
- Where a related contract had already been substantially performed before 2pm on 6 December 2006, the scheme transaction falls outside section 75A.
- There can also be an exclusion for a scheme transaction connected with a contract made before that point in time, subject to conditions.
- That second exception depends on conditions in the Stamp Duty Land Tax (Variation of the Finance Act 2003) Regulations 2006, SI 2006/3237.
- HMRC says section 75C applies to relevant transactions on or after 19 July 2007.
- For earlier transactions, HMRC says section 75C can still apply if it results in less tax than would have been due under the 2006 Regulations.
Pre-cut-off signing alone settles nothing. HMRC says 2006 Regulations conditions apply.
What this means in practice
Old section 75A claims need timelines. Record contract, performance, and linked-step dates.
Substantial performance is a legal term. This matters in the present context because HMRC’s manual identifies a separate exclusion, applicable where substantial performance occurred before the 2pm cut-off.
- Do not look only at the date ownership was registered.
- Keep the signed contract, completion statement and proof of payments.
- List each linked lease, transfer, option, payment or agreement.
- Check whether a step happened after the property transfer rather than before it.
- Read the 2006 Regulations if the contract was made before the cut-off time.
The anti-avoidance rule does not automatically apply because a deal had more than one step. Section 75A has its own test. For an old arrangement, the commencement rules do no more than answer the preliminary question whether section 75A can apply at all.
How to analyse it
Ask the date questions first. Only then consider the wider anti-avoidance test and the SDLT result. This avoids treating an old arrangement as if every part happened on the final completion date.
- What property interest moved, and who gave it up and received it?
- What are all the connected steps in the arrangement?
- Which of those steps happened after 2pm on 6 December 2006?
- Was there a contract made before that time?
- If so, were the conditions in SI 2006/3237 met?
- Was that contract substantially performed before the cut-off?
- Did the relevant transactions take place before 19 July 2007, making the special section 75C comparison relevant?
What actually decides the issue? Often, it is not what the parties called the deal. It is the dates and legal effect of each step.
Example
Imagine that Aisha signed a contract on 5 December 2006. A linked step in the wider arrangement happened on 10 December. The earlier signing date does not automatically take that later step outside section 75A. HMRC says 2006 Regulations conditions apply.
Now change one fact. If the contract had been substantially performed before 2pm on 6 December, HMRC says a scheme transaction connected with it is excluded from section 75A. The documents and the exact timing would still need checking.
Why this can be difficult in practice
These rules concern historic arrangements, so records may be incomplete. A transaction may also involve several dates: signing, payment, possession, completion and later linked steps. They should not be treated as the same date.
- People often assume that an early contract date is enough. The source says it is not necessarily enough.
- People may overlook a later agreement because no land changed hands under it.
- It may be unclear whether a later step was linked to the earlier contract.
- The detailed conditions in SI 2006/3237 cannot be safely guessed from HMRC’s short manual page.
- HMRC’s manual is guidance, not the law itself.
If the facts sit close to the cut-off, minutes may matter. A timeline backed by original documents will usually carry much more weight than a later account of what the parties intended.
Key takeaways
- The key commencement time is 2pm on 6 December 2006.
- An earlier contract may help, but it does not always settle the issue.
- Check each linked step, its date and the 2006 Regulations.
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
- FA 2003 section 75A — anti-avoidance rule for certain linked land arrangements
- FA 2003 section 75C — supplementary rules for the anti-avoidance charge
- an Act of 2007 we do not have an identifier for section 71 — commencement rules for the SDLT anti-avoidance provisions (no link: an Act of 2007 we do not have an identifier for)
- an Act of 2007 we do not have an identifier for section 71 — special transitional treatment for earlier arrangements (no link: an Act of 2007 we do not have an identifier for)
Official guidance
The pages below are HMRC’s guidance. Guidance is not law. It sets out how HMRC 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. HMRC can also change or withdraw guidance, and it may not cover your facts.
- SDLTM09060 — HMRC view on commencement of sections 75A to 75C
Where this is not settled
- The supplied material does not set out the detailed conditions in the Stamp Duty Land Tax (Variation of the Finance Act 2003) Regulations 2006 (SI 2006/3237). A conclusion on an earlier contract needs those conditions checked.
- The supplied material does not define every fact needed to decide when a particular arrangement took place or whether it relates to a particular contract.
- The controlled statutory extract does not include the text of Finance Act 2007 section 71 or SI 2006/3237, so the transitional position should be checked against the official legislation before relying on it.
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 date
- completion statements and dates
- evidence of any earlier payment or taking possession
- documents showing each step in the arrangement
- the version of SI 2006/3237 that applied at the time
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 UK Stamp Duty Land Tax (SDLT), which applies in England and Northern Ireland. MY QUESTION When the SDLT anti-avoidance rules started [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 - FA 2003 section 75A - anti-avoidance rule for certain linked land arrangements https://www.legislation.gov.uk/ukpga/2003/14/section/75A/2025-11-17 - FA 2003 section 75C - supplementary rules for the anti-avoidance charge https://www.legislation.gov.uk/ukpga/2003/14/section/75C/2025-11-17 - an Act of 2007 we do not have an identifier for section 71 - commencement rules for the SDLT anti-avoidance provisions - an Act of 2007 we do not have an identifier for section 71 - special transitional treatment for earlier arrangements Guidance page from HMRC on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm09060 HOW I WANT YOU TO ANSWER 1. Work from the legislation above. Read it before answering. Guidance from HMRC 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 material does not set out the detailed conditions in the Stamp Duty Land Tax (Variation of the Finance Act 2003) Regulations 2006 (SI 2006/3237). A conclusion on an earlier contract needs those conditions checked. - The supplied material does not define every fact needed to decide when a particular arrangement took place or whether it relates to a particular contract. - The controlled statutory extract does not include the text of Finance Act 2007 section 71 or SI 2006/3237, so the transitional position should be checked against the official legislation before relying on it. Do not give me a conclusion you cannot support from the provisions above.
Legislation links show Finance Act 2003 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 31 August 2026
Useful article? You may find it helpful to read the original guidance here: When the SDLT anti-avoidance rules started
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