Stamp duty where you assign contract rights over part of land
Assignment of part of a land contract
HMRC’s example says that assigning rights over one plot before completion can leave the original buyer with a notional SDLT transaction, even though another person completes that plot.
- Split the total price fairly between the plots.
- Check returns and any available relief separately.
- Verify the rules that applied on the transaction dates.
Scroll down for the full analysis.
Read the original guidance here:
Stamp duty where you assign contract rights over part of land
Stamp duty where you assign contract rights over part of land
When you agree to buy two plots and, before completion, pass rights over one plot to someone else, stamp duty may still produce more than one reportable deal. HMRC’s example requires the price to be divided between the plots. That division determines who reports each amount.
What this rule is about
The rule concerns a buyer who has entered into a land contract but has not completed it. Before completion, that buyer assigns rights over part of the land to another buyer.
Take a contract to buy two plots for a single total price. The original buyer retains Plot 1. A different person acquires the right to buy Plot 2 directly from the seller.
Two purchases may seem apparent. HMRC’s example produces a more detailed outcome. It says that the rights transfer creates an additional notional deal for the original buyer.
This may sound technical. It matters because a return and a relief claim can be required even though the original buyer never receives Plot 2.
What the official source says
HMRC’s manual, when illustrating the pre-completion rules in Schedule 2A, gives an example explaining how those rules apply where rights are assigned before completion. It concerns an assignment of rights under an uncompleted contract.
A agrees to sell two plots to B for £1 million. Plot 1 is worth £600,000 and Plot 2 is worth £400,000. B assigns its rights to Plot 2 to C. C then buys Plot 2 from A for £400,000. B completes the purchase of Plot 1 for £600,000.
- For Plot 2, the manual treats the original contract as a separate contract.
- C is treated as buying Plot 2 from A.
- C’s amount for SDLT is the £400,000 paid to A for Plot 2.
- B is treated as having a notional transaction for Plot 2.
- For that notional transaction, HMRC attributes £400,000 to B.
- HMRC says B can claim full relief for that notional transaction.
- B’s purchase of Plot 1 remains a transaction for £600,000.
According to HMRC, B should submit a return for the £400,000 notional transaction and claim full relief. C should submit a return for its £400,000 purchase. B should also submit a return for its £600,000 acquisition of Plot 1.
This is HMRC’s published position on the example. The manual is guidance rather than law, but it describes how HMRC applies the provisions it cites.
What this means in practice
The central point is straightforward: assigning rights over one plot does not necessarily take the original buyer out of the SDLT picture for that plot.
You may instead have to identify three matters: the new buyer’s purchase, the original buyer’s notional transaction, and the original buyer’s purchase of the land retained.
- Keep the original contract, including plans and plot boundaries.
- Check exactly which rights B assigned to C.
- Check whether C paid the seller, B, or both.
- Separate the price for the assigned plot from the price for the retained plot.
- Consider whether a return is required for each transaction.
- Where the notional transaction qualifies, include the relief claim in B’s return.
A return for a notifiable transaction is generally due within 14 days after its effective date. Completion or substantial performance can determine that effective date. Do not assume the answer is always the date on which money changes hands.
How to analyse it
Begin with the documents, not the labels used by the parties. Labels do not decide SDLT treatment.
First ask whether the original buyer transferred rights under an uncompleted contract or sold land already owned. Those situations differ.
- Identify the original contract and every piece of land it covers.
- Confirm whether completion or substantial performance happened before the assignment.
- Identify the part of the land covered by the assignment.
- Check who became entitled to complete that part of the contract.
- List every payment made by C, B and any connected person.
- Work out how much of the original price relates to each plot.
- Test whether the split is just and reasonable.
- Check the relevant law and return position for the transaction dates.
What happens if the contract states only one price for both plots? You cannot simply select a convenient figure. A just and reasonable split is required where one amount relates to two or more land transactions.
Example
This is HMRC’s illustration. A contracts to sell Plot 1 and Plot 2 to B for £1 million. The agreed values are £600,000 for Plot 1 and £400,000 for Plot 2.
Before completion of either plot, B assigns its rights over Plot 2 to C. C completes directly with A and pays A £400,000. B completes on Plot 1 and pays A £600,000.
On HMRC’s view, C’s SDLT calculation is based on £400,000. B also has a notional £400,000 transaction for Plot 2, although it can claim full relief in the circumstances set out in the example. B’s Plot 1 purchase uses £600,000.
The figures are straightforward here. Real cases can be harder. The contract may not state a separate value for each plot.
Why this can be difficult in practice
This is where people often go wrong: the legal steps and the money trail can indicate different things. A completion statement may not reveal which rights were assigned or which part of a single price genuinely belongs to each plot.
Value is frequently the main difficulty. A plot with road access, planning permission or development potential may warrant a far greater share of the total price than its acreage would suggest.
- A valuation prepared after the event may not reflect the position at the relevant time.
- Separate prices in documents are not conclusive if the deal is really one bargain.
- Payment to the original buyer for the assignment may change the analysis.
- Granting a lease from a freehold does not automatically assign part of that freehold contract.
- The same caution applies where a head lease leads to a sub-lease.
- The Schedule 2A example may not be the applicable regime for a later transaction.
The source gives no date for its example. The supplied statutory material is current only to 17 November 2025 and shows later transfer-of-rights provisions. The exact law must therefore be checked against the dates of the original contract and assignment.
Key takeaways
- Assigning rights over one plot can create a separate SDLT result for that plot.
- HMRC’s example gives C a £400,000 purchase and B a relieved £400,000 notional transaction.
- A single price must be split on a just and reasonable basis.
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 44 — contracts and conveyances treated as one transaction
- FA 2003 section 45 — schedule 2A rules for pre-completion transactions
- FA 2003 section 76 — duty to deliver a land transaction return
- FA 2003 section 77 — which land transactions require a return
- FA 2003 Schedule 2A para 1 — meaning of a pre-completion transaction
- FA 2003 Schedule 2A para 2 — assignments of rights before completion
- FA 2003 Schedule 2A para 3 — effect of a pre-completion transaction for transferees
- FA 2003 Schedule 2A para 4 — tax treatment of the person taking rights
- FA 2003 Schedule 2A para 5 — notional transaction for the person assigning rights
- FA 2003 Schedule 2A para 7 — separate contracts where rights cover part only
- FA 2003 Schedule 2A para 15 — relief for certain notional pre-completion transactions
- FA 2003 Schedule 4 para 4 — just and reasonable split of a price
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 source gives no transaction dates. That matters because the supplied current statutory material shows later rules for transfers of rights, while the manual example is framed under Schedule 2A.
- A fair split of a single contract price can be fact-sensitive, especially where plots have different development potential, access rights or planning value.
- The source does not explain how the result changes if B receives money for assigning its rights, rather than assigning them for no separate payment.
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 sale contract and plans identifying each plot
- The assignment document and any payment for the assignment
- Completion statements showing who paid the seller and how much
- Valuation evidence supporting the split between the plots
- Dates of contract, assignment, substantial performance and completion
- Details of any lease granted as part of 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 Stamp duty where you assign contract rights over part of land [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 44 - contracts and conveyances treated as one transaction https://www.legislation.gov.uk/ukpga/2003/14/section/44/2025-11-17 - FA 2003 section 45 - schedule 2A rules for pre-completion transactions https://www.legislation.gov.uk/ukpga/2003/14/section/45/2025-11-17 - FA 2003 section 76 - duty to deliver a land transaction return https://www.legislation.gov.uk/ukpga/2003/14/section/76/2025-11-17 - FA 2003 section 77 - which land transactions require a return https://www.legislation.gov.uk/ukpga/2003/14/section/77/2025-11-17 - FA 2003 Schedule 2A para 1 - meaning of a pre-completion transaction https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/1/2025-11-17 - FA 2003 Schedule 2A para 2 - assignments of rights before completion https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/2/2025-11-17 - FA 2003 Schedule 2A para 3 - effect of a pre-completion transaction for transferees https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/3/2025-11-17 - FA 2003 Schedule 2A para 4 - tax treatment of the person taking rights https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/4/2025-11-17 - FA 2003 Schedule 2A para 5 - notional transaction for the person assigning rights https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/5/2025-11-17 - FA 2003 Schedule 2A para 7 - separate contracts where rights cover part only https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/7/2025-11-17 - FA 2003 Schedule 2A para 15 - relief for certain notional pre-completion transactions https://www.legislation.gov.uk/ukpga/2003/14/schedule/2A/paragraph/15/2025-11-17 - FA 2003 Schedule 4 para 4 - just and reasonable split of a price https://www.legislation.gov.uk/ukpga/2003/14/schedule/4/paragraph/4/2025-11-17 HMRC's guidance page on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm21610 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 source gives no transaction dates. That matters because the supplied current statutory material shows later rules for transfers of rights, while the manual example is framed under Schedule 2A. - A fair split of a single contract price can be fact-sensitive, especially where plots have different development potential, access rights or planning value. - The source does not explain how the result changes if B receives money for assigning its rights, rather than assigning them for no separate payment. 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: Stamp duty where you assign contract rights over part of land
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