Stamp Duty Land Tax (SDLT) reliefs can feel complex, especially when more than one relief appears to apply to the same transaction. Two of the most commonly misunderstood reliefs are group relief and sub-sale relief. Property professionals and corporate groups often ask: can both be claimed at the same time? The short answer is yes but only when each relief independently satisfies its own strict conditions.
This guide explains how both reliefs work, where the rules come from, and what you need to consider before relying on either one.
What Is SDLT Group Relief?
SDLT group relief is a full exemption from stamp duty land tax that applies when a property is transferred between two companies within the same corporate group. It is found in Part 1 of Schedule 7, Finance Act 2003, and it is one of the most commercially significant SDLT reliefs available to businesses that hold property.
Without group relief, routine intra-group reorganisations could attract substantial SDLT charges. A commercial property worth £10 million moved from a holding company to a subsidiary, for example, could otherwise trigger an SDLT bill of hundreds of thousands of pounds. Group relief eliminates that charge entirely, provided the relevant conditions are met.
Conditions for Group Relief
To qualify for SDLT group relief, all of the following must apply:
- Both the vendor and purchaser must be companies (bodies corporate) and members of the same qualifying group
- The group relationship requires one company to be a 75% subsidiary of the other, or both to be 75% subsidiaries of a third company
- The 75% test applies to ordinary share capital and economic rights; indirect ownership through a chain is tested by multiplying the percentages at each level
- The transaction must be carried out for genuine commercial reasons, not as part of arrangements whose main purpose is the avoidance of SDLT or another qualifying tax.
- No arrangement must be in place, prior to the transaction, under which the purchaser and vendor could cease to be members of the same group.
Group relief is not automatic. It must be claimed on the SDLT1 return using relief code 12, with supporting documentation about the group structure retained for any HMRC enquiry.
The Three-Year Clawback
If the purchasing company leaves the group within three years of the effective date of the transaction, the relief is withdrawn and the full SDLT becomes payable immediately. This clawback is triggered by the company leaving the group, not by the property being sold. Selling the underlying property while the company remains within the group does not trigger clawback. Interest applies from the original effective date, and buyers of property-holding companies are advised to check whether any outstanding SDLT clawback obligations exist during due diligence.
What Is SDLT Sub-Sale Relief?
Sub-sale relief is found in section 45 of the Finance Act 2003. It applies in a typical A to B to C transaction chain, where the original purchaser (B) does not take legal title to the property but instead assigns the benefit of the contract, or effects a sub-sale, to a third party (C) before completion.
Without this relief, both B and C could face SDLT charges: B on the original A to B transaction, and C on the assignment. Sub-sale relief prevents this double taxation by exempting B entirely. Only C pays SDLT, on the higher of the consideration C pays or the original A to B contract price.
Conditions for Sub-Sale Relief
For B to successfully claim sub-sale relief under section 45, all of the following must be satisfied:
- There must be a valid, subsisting original contract between A and B for the purchase of the land
- B must assign the benefit of that contract, or enter into a sub-sale agreement with C, before the original contract completes
- The conveyance must be made by A directly to C — B must never receive legal title at any point
- Neither contract must be substantially performed before the two contracts complete simultaneously
- B and C must not be connected persons within the meaning of section 1122 of the Corporation Tax Act 2010
If all conditions are satisfied, B is treated as if the original contract was rescinded. B has no SDLT liability, and C files the SDLT return and pays the tax.
Why Timing Is Everything
The relief is permanently unavailable once completion has occurred. If B completes the original contract and takes a conveyance of the property before assigning, the arrangement becomes a straightforward second transaction. B pays SDLT on the A to B transaction, and C pays SDLT on the B to C sale, there is no mechanism to retrospectively apply sub-sale relief.
In practice, the assignment should be documented by a formal deed, clearly pre-dating the completion, with simultaneous or connected performance of both contracts on the same day.
How the Two Reliefs Interact
The key point recognised in HMRC’s own technical guidance (SDLTM23016) is that the SDLT framework unlike the older stamp duty rules in section 27(3) of the Finance Act 1967 does not carry over provisions that allowed parties to “rest on contracts” and thereby delay or avoid a tax charge. The substantial performance rule in section 44, Finance Act 2003 means that SDLT can arise even before legal completion if the parties have substantially fulfilled the terms of the contract, such as by paying 90% or more of the purchase price or taking possession.
This matters in the group relief and sub-sale relief context because it means there is no automatic shelter from SDLT by simply structuring a transaction as a contract rather than a completed conveyance. Each relief must independently do its own work.
Can You Claim Both?
Yes, group relief and sub-sale relief can apply to the same transaction, but each must be independently satisfied. The two reliefs are not mutually exclusive, but they serve different purposes and are governed by separate statutory provisions.
Consider a corporate group scenario where:
- A (an external seller) contracts to sell a commercial property to B (a group company)
- Before completion, B assigns the contract to C (another company in the same corporate group)
- A conveys the property directly to C
In this situation, B may seek sub-sale relief under section 45 FA 2003 because B never receives the conveyance. Separately, if C later transfers the property to another group member, C may seek group relief under Schedule 7 FA 2003 for that subsequent intra-group transfer.
However, the connected party exclusion for sub-sale relief requires careful analysis. Sub-sale relief is expressly denied where B and C are connected persons under section 1122 CTA 2010. Companies within the same corporate group are connected persons by definition. This means that in a pure intra-group sub-sale (where B and C are already in the same group), sub-sale relief for B would be blocked by the connected party rule.
This is a critical distinction practitioners frequently overlook. The solution typically involves using group relief for intra-group transfers, and reserving sub-sale relief for arrangements where C is a genuine arm’s length third party outside the group.
Practical Scenarios
Scenario 1: Group Company as Intermediate Purchaser
A property trading company (B) outside any corporate group contracts to buy land from A. Before completion, B assigns to C, which is an unrelated third party. Sub-sale relief is available to B because B and C are not connected. Group relief does not arise as no intra-group transfer is involved.
Scenario 2: Intra-Group Transfer Following External Purchase
B, a group company, purchases property from A at arm’s length and completes the transaction. B subsequently transfers the property to C, a fellow subsidiary in the same group. Sub-sale relief is not available because B already received legal title. Group relief is available for the B to C transfer, provided the 75% ownership conditions are met and there is no pre-arranged exit from the group.
Scenario 3: Where Both Reliefs Could Theoretically Apply
B contracts with A to buy property. Before completion, B assigns the contract to C, a company that is not yet part of B’s corporate group (for example, it is in the process of being acquired into the group). Sub-sale relief could apply to B, and group relief could apply to a subsequent intra-group transfer by C but only if each set of conditions is independently met at the time of the respective transaction.
Anti-Avoidance Considerations
HMRC scrutinises arrangements that claim one or both reliefs very carefully. The anti-avoidance provisions in paragraph 2(4A) of Schedule 7 FA 2003 deny group relief if the transaction is not effected for genuine commercial reasons, or if the main purpose is tax avoidance. The broader anti-avoidance provision in section 75A FA 2003 can also apply to any SDLT arrangement including sub-sale structures — where a series of transactions reduces SDLT below what a single notional transaction would attract.
Arrangements that artificially manufacture a sub-sale to avoid the connected party exclusion, or that create a temporary group structure to access group relief before dismantling it, will be challenged. The burden is on the taxpayer to demonstrate that each relief is claimed on genuine commercial grounds with proper documentation.
How UK Property Tax Accountants Can Help
Understanding whether SDLT group relief, sub-sale relief, or both apply to your transaction is a matter that turns on precise statutory conditions, timing, and corporate structure. Getting it wrong can result in an unexpected SDLT bill, interest, and penalties or a missed opportunity to legitimately reduce your tax liability.
UK Property Tax Accountants works with corporate groups, developers, letting agents and property investors to manage exactly these scenarios. Our team reviews your corporate structure, transaction timetable, and group relationships to assess relief eligibility before exchange not after. We prepare and file SDLT returns with the correct relief codes, maintain the documentation required to defend any HMRC enquiry, and monitor clawback windows so that future reorganisations do not inadvertently trigger withdrawn reliefs.
Whether you are restructuring a property portfolio, managing a complex A to B to C acquisition chain, or integrating a newly acquired group company that holds property, speak to us before completing. Early advice ensures the right relief is claimed correctly, on the right return, at the right time.
Frequently Asked Questions:
Can SDLT group relief and sub-sale relief be claimed on the same transaction?
Yes, in principle both reliefs can apply to the same transaction, but each must independently satisfy its own statutory conditions. They are governed by different provisions of the Finance Act 2003, Schedule 7 for group relief and section 45 for sub-sale relief.
Why does the connected party rule matter for sub-sale relief?
Sub-sale relief under section 45 FA 2003 is expressly denied where the assignee (C) is a connected person of the intermediate purchaser (B) under section 1122 CTA 2010. Companies in the same corporate group are connected, so a pure intra-group sub-sale will not qualify for sub-sale relief. Group relief would typically be the relevant relief for intra-group transfers.
What triggers the clawback of group relief?
Group relief is clawed back if the purchasing company leaves the same corporate group as the vendor within three years of the effective date of the transaction, or pursuant to arrangements made within that period. The clawback is triggered by the company leaving the group, not by the property being sold by the company.
