SDLT relief when you pass on a property contract
Transferor relief at a glance
HMRC says a person who passes on rights under an uncompleted property contract may claim SDLT relief. The exact arrangement, its timing and its purpose decide whether it is available.
- There are separate rules for assignments and subsales.
- A subsale requires connected, simultaneous completion or substantial performance.
- The claim belongs in the SDLT return or a timely amendment.
Scroll down for the full analysis.
Read the original guidance here:
SDLT relief when you pass on a property contract
If you agree to buy land or a property, then pass your contract rights to somebody else before completion, you may not have to pay stamp duty on your own transaction. This relief is narrow. The type of arrangement, its timing and its purpose all matter.
What this rule is about
This rule addresses a chain of property contracts in which the first buyer passes contract rights to somebody else before the first contract has completed, rather than taking the property themselves. It concerns pre-completion arrangements. The buyer may pass rights on instead.
That can happen in two main ways: an assignment of rights, or a subsale. Those names matter because the law gives separate relief for each route.
You might assume that passing on a contract always removes your stamp duty bill. It does not.
What the official source says
HMRC’s manual says that the transferor, meaning the person passing on the contract rights, can claim full relief in some cases. It says the pre-completion arrangement must be an assignment of rights or a subsale.
- An assignment of rights has its own relief under paragraph 15.
- A subsale has its own relief under paragraph 16.
- For a subsale, the first contract must be substantially performed or completed at the same time as the subsale contract, rather than at an earlier or later time. Timing matters.
- The parties must ensure that the two events are connected with each other.
- If the arrangement covers only part of the land in the first contract, the transferor may obtain partial relief.
- The transferor cannot claim relief if securing an SDLT advantage was a main purpose.
- For this purpose, a tax advantage means an SDLT advantage only.
HMRC’s manual is guidance about its view of the law. The legislation is the law and decides whether relief is available.
What this means in practice
Full relief can prevent HMRC from charging SDLT on the transferor’s own land transaction, but it does not free every later buyer from SDLT because the facts of each transaction in the chain matter. Facts decide the result. Assess each transaction in the chain on its facts.
A part-transfer produces a different result. If the transferor passes on only some of the land, the manual says partial relief may be available rather than full relief.
- Check whether the later agreement is truly an assignment or a subsale.
- Read the first contract and later agreement together.
- For a subsale, compare the dates and events for both contracts.
- Keep records that show why the arrangement was made.
- Do not assume that a commercial label settles the SDLT result.
- Include the relief claim in the SDLT return, or amend the return if still in time.
HMRC says to use relief code 34 in the relevant return box. That is a filing instruction from HMRC. It does not replace the legal conditions for relief.
How to analyse it
Start with the paperwork, not the name people have given the deal, because a document called an assignment may still leave questions about the rights passed, the land involved and the way completion happened. Read the documents closely. The rights passed, the land involved and the way completion happened are all relevant.
- Identify the person who entered into the original contract.
- Identify who received rights under that contract.
- Work out whether the arrangement was an assignment of rights or a subsale.
- Check whether it covered all the land or only part.
- For a subsale, check whether the parties completed or substantially performed both contracts together.
- Check whether those events were connected.
- Consider the reasons for the arrangement and whether an SDLT advantage was a main purpose.
- Check the return filing date before relying on an amendment.
The amendment deadline stated by HMRC is twelve months from the filing date. The filing date is not simply the day a return was sent in, so the relevant date should be checked carefully.
Example
Before the first contract completes, Amir enters into a subsale contract with Beth under which she will take the plot instead, while the arrangement remains connected. Beth takes the plot instead. The parties complete the original contract and Beth’s contract at the same time as part of one connected arrangement.
On the facts in HMRC’s manual, Amir may be able to claim full transferor relief. If Amir had passed on rights over only one part of a larger site, the result could instead be partial relief. The documents and the reason for the arrangement would still need checking.
Why this can be difficult in practice
The difficult point is often not the deadline. It is deciding what the agreements actually do. Small differences in rights, land boundaries and timing can change the answer.
Purpose can also be hard to prove. A deal may have sound business reasons, but that does not by itself rule out a main purpose of getting an SDLT advantage.
- Calling a deal an assignment does not prove it qualifies.
- A subsale needs the required connection and timing between the contracts.
- Passing on only part of a site may lead to only partial relief.
- A benefit in another tax does not, on the source wording alone, meet this SDLT tax-advantage test.
- Missing the amendment deadline may prevent a return from being changed by that route.
Key takeaways
- Relief may be available when contract rights are passed on before completion.
- Assignments and subsales have separate relief routes.
- For a subsale, connected and simultaneous performance or completion matters.
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 Schedule 2A para 15 — relief for a transfer of contract rights
- FA 2003 Schedule 2A para 16 — relief for a subsale before completion
- FA 2003 Schedule 2A para 17 — partial relief where only part is transferred
- FA 2003 Schedule 2A para 18 — anti-avoidance rule based on a tax purpose
- FA 2003 Schedule 10 para 6 — amending an SDLT return within twelve months
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.
Where this is not settled
- The transaction date is not provided. The applicable version of Schedule 2A and the availability of this relief must be checked against the law in force at that time.
- The supplied statutory bundle does not include the text of Schedule 2A paragraphs 15 to 18, so their current and historical wording needs verification from the official legislation before publication-ready advice is given.
- The source does not explain the detailed legal boundary between an assignment of rights and a subsale. The contracts and completion arrangements need close review.
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 original property contract.
- The agreement that passes on the rights or creates the subsale.
- Documents showing which land was included in each agreement.
- Completion records and evidence of substantial performance for both contracts.
- The SDLT return, filing date and any earlier amendment.
- Evidence of the commercial purpose for the arrangement.
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 SDLT relief when you pass on a property contract [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 Schedule 2A para 15 - relief for a transfer of contract rights https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/15/2025-11-17 - FA 2003 Schedule 2A para 16 - relief for a subsale before completion https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/16/2025-11-17 - FA 2003 Schedule 2A para 17 - partial relief where only part is transferred https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/17/2025-11-17 - FA 2003 Schedule 2A para 18 - anti-avoidance rule based on a tax purpose https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/18/2025-11-17 - FA 2003 Schedule 10 para 6 - amending an SDLT return within twelve months https://www.legislation.gov.uk/ukpga/2003/14/schedule/10/paragraph/6/2025-11-17 HMRC's guidance page on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm21570 HOW I WANT YOU TO ANSWER 1. Work from the legislation above. Read it before answering. HMRC guidance is HMRC's 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 transaction date is not provided. The applicable version of Schedule 2A and the availability of this relief must be checked against the law in force at that time. - The supplied statutory bundle does not include the text of Schedule 2A paragraphs 15 to 18, so their current and historical wording needs verification from the official legislation before publication-ready advice is given. - The source does not explain the detailed legal boundary between an assignment of rights and a subsale. The contracts and completion arrangements need close review. 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 1 September 2026
Useful article? You may find it helpful to read the original guidance here: SDLT relief when you pass on a property contract
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