Guide to SDLT Rules for Pre-Completion Land Transactions from July 2013
SDLT pre-completion transactions
Pre-completion transaction rules can apply where a buyer agrees to purchase land, but before completion or substantial performance, gives another person the legal right to receive all or part of that land instead. In those cases, SDLT is not worked out simply by looking at the original contract alone, and the special rules in Finance Act 2003 section 45 and Schedule 2A may need to be considered.
- The rules start with an original land contract within Finance Act 2003 section 44, usually one intended to be completed by transfer or other conveyance.
- The original contract must not already have been completed or substantially performed when the later arrangement is made.
- A pre-completion transaction arises if the original buyer enters into a further agreement under which another person becomes legally entitled to call for the transfer of all or part of the property.
- This can happen through an assignment, a nominee arrangement, or another structure that gives someone else the right to require the conveyance.
- The rules apply to transactions entered into on or after 17 July 2013, although transitional rules may need checking for cases around that date.
- In practice, the main issues are timing and whether the later agreement creates a real legal entitlement, rather than just a commercial understanding.
Scroll down for the full analysis.

Read the original guidance here:
Guide to SDLT Rules for Pre-Completion Land Transactions from July 2013

SDLT pre-completion transactions: when a buyer passes on rights before completion
This page explains the SDLT rules on pre-completion transactions. These rules matter where a person agrees to buy land, but before that purchase is completed, arranges for someone else to become entitled to receive all or part of the property instead. In that situation, SDLT does not simply follow the original contract in a straightforward way. Special rules in Finance Act 2003 section 45 and Schedule 2A may apply.
What this rule is about
A pre-completion transaction starts with an ordinary land contract that falls within the SDLT contract rules in Finance Act 2003 section 44. In broad terms, this means a contract for a land transaction that is intended to be completed by a conveyance, such as a transfer.
The issue arises where, before that original contract is completed or substantially performed, the original buyer enters into another arrangement. That later arrangement gives a different person the right to call for the transfer of all or part of the property covered by the original contract.
The law treats this as a distinct SDLT situation because the person who first agreed to buy the land is no longer necessarily the person who will ultimately receive it. The rules are designed to deal with that change in entitlement before completion.
What the official source says
HMRC’s manual says that the SDLT rules for pre-completion transactions are found in Finance Act 2003 section 45 and Schedule 2A. The rules apply to pre-completion transactions entered into on or after 17 July 2013, subject to transitional rules in some cases.
The manual identifies three key elements:
- There must first be an original contract for a land transaction within section 44.
- That original contract must not yet have been substantially performed or completed.
- Before that point, the purchaser under the original contract enters into a further agreement under which another person becomes entitled to call for the conveyance of all or part of the subject matter of the original contract.
Where those conditions are met, the further agreement is a pre-completion transaction.
In HMRC’s terminology, the buyer under the original contract is sometimes called the transferor, and the ultimate buyer is called the transferee.
What this means in practice
The practical question is whether the original buyer has, before completion, passed on the right to receive the property to someone else. If so, the transaction may fall into the pre-completion rules rather than being taxed only by looking at the original contract in isolation.
This commonly matters where a buyer “assigns” a contract, directs that the property should be transferred to a nominee, or otherwise arranges for another person to stand in line to receive the land on completion. The source material here does not set out the detailed tax consequences of each type of arrangement, but it makes clear that the trigger for the special rules is the creation of that new entitlement before completion or substantial performance of the original contract.
The timing point is important. If the original contract has already been substantially performed or completed, the pre-completion transaction rules described here are not the starting point. The rule is aimed at changes made before that stage.
It is also important that the later agreement gives another person the right to call for the conveyance. This is more than a loose commercial understanding. The later arrangement must have the legal effect that someone else can require the transfer of all or part of the property.
How to analyse it
A sensible way to analyse the point is to ask these questions in order:
- Is there an original contract for a land transaction that falls within Finance Act 2003 section 44?
- Is that contract intended to be completed by a conveyance?
- Has the original contract already been substantially performed or completed? If yes, this particular pre-completion framework may not apply.
- Before that stage, did the original purchaser enter into a further agreement?
- Does that further agreement make another person entitled to call for the conveyance?
- Does that entitlement relate to all or part of the property covered by the original contract?
- When was the pre-completion transaction entered into? The source says the current rules are effective for transactions entered into on or after 17 July 2013, subject to transitional rules.
If the answer to those questions points to a pre-completion transaction, the next step would be to consider the more detailed provisions in section 45 and Schedule 2A to work out the SDLT effect. This source page is introductory, so it identifies the gateway into those provisions rather than all of the consequences.
Example
Illustration: A agrees to buy a piece of land from S under a contract that will later be completed by transfer. Before A completes and before A has substantially performed the contract, A enters into an agreement with B under which B becomes entitled to require the land to be transferred to B instead. On the source material, that later agreement is capable of being a pre-completion transaction, because there is an original contract, it has not yet been completed or substantially performed, and another person has become entitled to call for the conveyance.
The same principle can apply if B is entitled to receive only part of the land covered by the original contract, because the source expressly refers to all or part of the subject matter of the original contract.
Why this can be difficult in practice
The main difficulty is often identifying whether the later arrangement really gives another person a legal entitlement to call for the conveyance, or whether it is only a commercial understanding about what the parties expect to happen.
Another practical difficulty is timing. The source makes substantial performance and completion the cut-off point, so it is necessary to be clear exactly what has happened under the original contract and when.
It can also be easy to miss transactions involving only part of the property. The rule is not limited to cases where the whole contract is passed on. A later agreement affecting part only can still fall within the pre-completion framework.
Finally, the source refers to transitional rules for transactions on or after 17 July 2013 but does not set those rules out. Where dates are close to the commencement period, the transitional position may need careful checking against the legislation or fuller guidance.
Key takeaways
- A pre-completion transaction can arise where the original buyer passes to someone else the right to receive all or part of the property before completion or substantial performance.
- The relevant SDLT rules are in Finance Act 2003 section 45 and Schedule 2A.
- The key issues are the existence of an original section 44 contract, the timing, and whether another person has become legally entitled to call for the conveyance.
This page was last updated on 24 March 2026
Useful article? You may find it helpful to read the original guidance here: Guide to SDLT Rules for Pre-Completion Land Transactions from July 2013
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