SDLT and stamp duty when contract rights pass through a series
Contract rights and SDLT
An uncompleted property contract can be passed to another buyer. SDLT may then treat that buyer as having made a secondary contract.
- The original price can matter as well as any transfer fee.
- Each transfer in a chain may need separate analysis.
- The archived HMRC page directs readers to SDLTM21500.
Scroll down for the full analysis.
Read the original guidance here:
SDLT and stamp duty when contract rights pass through a series
SDLT and stamp duty when contract rights pass through a series
Contract assignments can affect stamp duty. The key point is this: SDLT can treat the new buyer as having made a fresh contract, even though the seller transfers the property directly to them.
What this rule is about
This situation can arise before a property sale completes. A buyer can assign rights to another.
That is not simply a sale of a property. It is a transfer of rights under the first contract.
What the official source says
The HMRC page is archived. It sends readers to another manual page for full guidance. HMRC manuals explain HMRC’s view; they are not the law.
The legislation sets out the current framework:
- The original contract must allow the seller to transfer the property as the original buyer directs.
- Another person must become entitled to use the original buyer’s rights.
- That person is treated as making a new, or secondary, contract.
- The rule can apply again where rights pass through a series of people.
What this means in practice
The later buyer’s figure is not necessarily just the fee paid to take over the contract. It can also include the relevant part of the original price.
- Keep the original contract and any assignment agreement.
- Trace who paid the seller and who paid for the rights.
- Check whether the transfer covered all the property or only part.
How to analyse it
Begin with the paperwork. Calling it a reservation, nomination or onward sale does not settle the SDLT result.
- Who signed the original contract?
- Who became entitled to exercise the original buyer’s rights?
- Who received the property on completion?
- What sums did the later buyer, or someone connected with them, provide?
Example
Leah agrees to buy a flat for £300,000. Before completion, she transfers her contract rights to Amir for £20,000, and the seller, rather than Leah, transfers the flat directly to Amir on completion. The transfer is direct. For this rule, Amir’s secondary contract can use £320,000: the relevant £300,000 original price plus the £20,000 paid for the rights. This is not a tax calculation.
Why this can be difficult in practice
Several documents may describe the same arrangement in different ways, but details matter where money moves through an agent or only part of the contract changes hands. Check them closely.
- A transfer fee alone may not be the whole figure that matters.
- Each link in a chain needs checking separately.
- The effective date cannot be earlier than the rights transfer date.
Key takeaways
- Passing on contract rights can create a separate SDLT question.
- A chain of transfers does not turn the rule off.
- Check the contracts, payments and completion documents together.
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 44A — contracts directing a seller to transfer land elsewhere
- FA 2003 section 45A — transfers of rights under uncompleted land contracts
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 archived source page contains no substantive explanation and instead directs readers to SDLTM21500.
- The result depends on the contract terms, the route taken by the money and whether rights over all or only part of the property moved.
- The supplied legislation is current only to 17 November 2025. A transfer after that date needs a current-law check.
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 purchase contract
- The agreement transferring the rights
- Records showing who paid the original price and any transfer fee
- Completion documents showing who received the property
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 and stamp duty when contract rights pass through a series [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 44A - contracts directing a seller to transfer land elsewhere https://www.legislation.gov.uk/ukpga/2003/14/section/44A/2025-11-17 - FA 2003 section 45A - transfers of rights under uncompleted land contracts https://www.legislation.gov.uk/ukpga/2003/14/section/45A/2025-11-17 Guidance page from HMRC on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm01100a 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 archived source page contains no substantive explanation and instead directs readers to SDLTM21500. - The result depends on the contract terms, the route taken by the money and whether rights over all or only part of the property moved. - The supplied legislation is current only to 17 November 2025. A transfer after that date needs a current-law check. 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: SDLT and stamp duty when contract rights pass through a series
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