Understanding Pre-Completion Transactions Under FA03/SCH2A for Land Transactions

SDLT pre-completion transactions

A pre-completion transaction can arise where a buyer has agreed to buy land but, before completion or substantial performance, makes a further agreement allowing someone else to require the transfer of all or part of the property. In that case, the normal SDLT position under the original contract may change, and the wider Schedule 2A rules may need to be considered.

• The rule starts with an original land contract within section 44 of Finance Act 2003, intended to be completed by conveyance.
• The original contract must still be uncompleted and not substantially performed when the later agreement is made.
• The key trigger is that another person becomes legally entitled to call for the conveyance of all or part of the property.
• This is not just about an onward sale or informal arrangement; the legal effect of the later agreement is what matters for SDLT.
• The rule can apply to part of the property only, and careful attention is needed where documents are signed in quick succession or rights are unclear.

Scroll down for the full analysis.

SDLT pre-completion transactions: when a buyer passes on rights before completion

This page explains a narrow but important SDLT rule. It deals with what happens where someone agrees to buy land, but before that purchase is completed or substantially performed, they enter into another arrangement that lets someone else take the conveyance instead. HMRC refers to this as a pre-completion transaction. The point matters because SDLT does not always follow the original contract in the ordinary way once this kind of arrangement is made.

What this rule is about

The source material is addressing transactions that sit between exchange and completion. It starts with an original contract for a land transaction of the kind covered by Finance Act 2003 section 44. In broad terms, that means a contract which is intended to be completed by a conveyance.

Before that original contract has been completed, and before it has been substantially performed, the original buyer may enter into a further agreement. If that further agreement gives another person the right to call for the conveyance of all or part of the land covered by the original contract, the further agreement is treated as a pre-completion transaction under Schedule 2A to Finance Act 2003.

This is part of the SDLT framework for deciding who is treated as acquiring the land, and which steps in a chain are relevant for SDLT purposes.

What the official source says

The official material sets out three core conditions.

• There must first be an original contract for a land transaction within section 44 FA 2003.
• That contract must still be uncompleted and not substantially performed.
• The purchaser under that original contract must then enter 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.

If those conditions are met, the further agreement is a pre-completion transaction.

The source is short, but its wording is important. The later agreement does not need to cover the whole property. It can apply to part only. Also, the key feature is not simply that there is a resale or onward deal in commercial terms, but that another person becomes entitled to require the conveyance.

What this means in practice

In practice, this rule commonly becomes relevant where the original buyer does not end up taking the property in the way first expected. Instead, before completion, rights are redirected so that another person can require the transfer.

A conveyancer or adviser should recognise that this is not just an ordinary question of contract assignment in everyday language. For SDLT, the legislation looks closely at timing and legal rights.

The practical questions are:

• Was there an original land contract that would normally complete by conveyance?
• Had that original contract already been completed or substantially performed when the later arrangement was made?
• Did the later arrangement give a different person the right to call for the conveyance?
• Did that right relate to all or only part of the original subject matter?

If the answer to those questions points to Schedule 2A, the SDLT analysis may move away from the simple position that the original contract alone determines the charge. The detailed consequences are dealt with in the wider pre-completion transaction rules, but this page is identifying the trigger for those rules to apply.

How to analyse it

A sensible way to analyse the issue is to work through the transaction chronologically.

First, identify the original contract. Check that it is a contract for a land transaction within section 44 FA 2003 and that it is intended to be completed by a conveyance.

Second, check the timing. The later agreement must be entered into before the original contract has been completed and before it has been substantially performed. If substantial performance has already happened, this particular rule may not be engaged in the same way.

Third, identify the later agreement and what rights it creates. The critical question is whether another person becomes entitled to call for the conveyance. That is a legal rights question, not just a commercial description of who is expected to end up with the property.

Fourth, check the extent of the land affected. The rule can apply if the later agreement relates to all of the original subject matter or only part of it.

Fifth, place the arrangement in the wider SDLT structure. Once a pre-completion transaction exists, the later provisions in Schedule 2A determine the SDLT treatment. This page does not set out those later consequences, but it tells you when you need to go on and consider them.

Example

Suppose A contracts to buy a freehold property from S. The contract is to be completed by transfer. Before completion takes place, and before A has substantially performed the contract, A enters into an agreement with B under which B can require S to transfer part of the property directly to B at completion.

On the wording of the source material, that later agreement is capable of being a pre-completion transaction. That is because there is an original section 44 contract, it has not yet been completed or substantially performed, and another person, B, has become entitled to call for the conveyance of part of the original subject matter.

Why this can be difficult in practice

The source material is concise, but the underlying issue can be fact-sensitive.

One difficulty is deciding whether the later arrangement really gives another person the right to call for the conveyance, or whether it is only an economic or informal arrangement between the parties. SDLT depends on the legal effect of the agreement.

Another difficulty is timing. Whether the original contract has already been substantially performed can be crucial. If that has already happened, the analysis may change.

There can also be uncertainty where only part of the original property is involved, or where a series of linked agreements are entered into in quick succession. In those cases, it is important to identify exactly which rights arise under which document, and when.

Finally, readers should be careful not to treat every onward sale, nomination, or change in intended buyer as automatically falling within this rule. The statutory trigger is specific: another person must become entitled to call for the conveyance before the original contract is completed or substantially performed.

Key takeaways

• A pre-completion transaction arises where an original buyer enters into a later agreement, before completion or substantial performance, that lets another person call for the conveyance.
• The rule only starts from an original contract within section 44 FA 2003, meaning a contract to be completed by conveyance.
• The legal rights created by the later agreement, and the timing of that agreement, are central to the SDLT analysis.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Understanding Pre-Completion Transactions Under FA03/SCH2A for Land Transactions

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