SDLT on Sharia-Compliant Diminishing Musharaka Buy-to-Lets
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Do you pay SDLT twice when buying with Sharia-compliant property finance?
Introduction
People often search for this issue when they are buying a property using Islamic or Sharia-compliant finance and are told that the bank may first buy the property and then grant rights back to the customer. That can make the transaction look like there are two land transactions, which naturally raises the question: will Stamp Duty Land Tax (SDLT) be charged twice?
The short answer is usually no. The Finance Act 2003 contains special rules for alternative property finance designed to prevent double taxation. But the exact SDLT result still depends on the structure used, who the purchaser is, and whether the property is residential or genuinely non-residential because it is not suitable for use as a dwelling at the effective date of the transaction.
The Question
A buyer was planning to acquire a buy-to-let property through a company using Sharia-compliant finance from an alternative finance provider. The buyer had heard that some Islamic finance transactions can produce two SDLT records or SDLT5 certificates and wanted to know whether that meant:
- SDLT was exempt,
- SDLT had to be paid at completion and reclaimed later, or
- the structure simply prevented SDLT from being charged twice.
The buyer also asked whether the property’s condition might affect the SDLT position, because the property appeared to need some updating and checks to the gas and electrical systems.
Nick’s Explanation
Nick’s explanation was that, in broad terms, Sharia-compliant property finance can involve two steps that might otherwise look like two taxable land transactions. However, the SDLT legislation includes relief provisions so that double taxation does not normally arise.
In anonymised form, his key point was:
“In theory, there can be an initial acquisition by the finance provider and a further step under the finance structure, which might appear to create two SDLT charges. But the legislation is designed so that double taxation does not apply.”
He also explained that the practical cost of SDLT is still usually borne by the customer, even where the finance provider is the party treated as making the chargeable acquisition under the statutory structure.
On the separate issue of the property’s condition, Nick said that only a genuinely serious condition problem would potentially move the property out of the residential SDLT rules. Cosmetic works, ordinary repair, or uncertainty about certificates would not usually be enough.
After reviewing the general description of the property, Nick’s view was that it was not realistically arguable that the dwelling was uninhabitable for SDLT purposes. On that basis, the ordinary residential SDLT rules would apply, including the higher rates where a company buys a residential buy-to-let property.
The Law
SDLT is charged under the Finance Act 2003 on land transactions in England and Northern Ireland. Special provisions deal with “alternative property finance”, including arrangements intended to comply with Islamic finance principles.
The relevant rules are found in Part 4 of the Finance Act 2003, including the sections dealing with alternative property finance. These provisions are intended to ensure that where a transaction is structured through an approved alternative finance model, SDLT is not imposed twice simply because the legal steps differ from a conventional mortgage.
In broad terms, the legislation recognises that an alternative finance provider may need to acquire the property or an interest in it as part of the arrangement. Without special rules, that could create more than one taxable acquisition. The statutory scheme modifies the SDLT treatment to avoid that unfair result.
Where the property is residential, the residential SDLT rules apply. If the purchaser is a company buying a dwelling, the higher rates for additional dwellings will usually be relevant. For lower-value transactions this often means SDLT at 3% of the price where that falls within the relevant banding structure in force at the time.
Some buyers also ask whether a run-down property can be treated as non-residential, so that residential rates do not apply. That question turns on whether the building was suitable for use as a dwelling at the effective date of the transaction. The modern case law sets a relatively demanding test.
In particular, in an uninhabitable or not suitable for use case, the condition thresholds are now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. The Court of Appeal makes clear that the test is not satisfied by ordinary disrepair, dated condition, missing certificates, or the fact that works are desirable before occupation. The issue is whether the property was truly unsuitable for use as a dwelling at the relevant date.
Analysis
The easiest way to analyse this kind of transaction is in stages.
Identify the finance structure.
If the arrangement is a recognised Sharia-compliant property finance structure, such as a diminishing musharaka-style arrangement operated by an alternative finance provider, the Finance Act 2003 may apply special treatment.
Ask whether the structure creates two apparent land transactions.
On the documents, there may be an acquisition by the finance provider and a further step granting rights back to the customer. That can result in more than one SDLT filing event or more than one SDLT5 certificate being generated in practice.
Distinguish paperwork from tax liability.
The existence of two SDLT5 certificates does not by itself mean SDLT is payable twice. SDLT5 certificates are administrative evidence linked to returns. They do not, on their own, determine the substantive tax outcome. The legal question is whether the alternative property finance provisions relieve the second step from a further SDLT charge.
Apply the alternative finance rules.
Where the statutory conditions are met, the legislation is intended to prevent double taxation. So the buyer should not assume that a reclaim is needed simply because the transaction has two stages or because two SDLT references or certificates exist in the background.
Work out who is bearing the SDLT cost commercially.
Even if the legislation treats the finance provider as the chargeable purchaser for part of the structure, the finance documents commonly require the customer to fund the SDLT cost. So, from the buyer’s practical point of view, SDLT is still usually payable as part of completion funds.
Consider whether the property is residential.
If the property is a dwelling and remains suitable for use as a dwelling at completion, residential SDLT rates apply. If the buyer is a company acquiring a buy-to-let dwelling, the higher rates will usually apply as well.
Test any “uninhabitable” argument carefully.
A property does not become non-residential merely because it needs redecoration, modernisation, testing, or routine repairs. Missing gas or electrical certificates do not automatically prove that the property is unsuitable for use as a dwelling. Following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the threshold is relatively high. The building must be in a condition that genuinely takes it outside use as a dwelling at the effective date.
On the facts described here, the property appeared to need only modest works and checks rather than major structural or safety remediation. That points strongly toward the property remaining residential for SDLT purposes.
Outcome
The practical conclusion is:
- buying with a Sharia-compliant alternative finance provider does not usually mean SDLT is payable twice;
- the special rules in the Finance Act 2003 are designed to prevent double taxation in these arrangements;
- the customer will still usually bear the SDLT cost as part of the finance transaction;
- if a company is buying a residential buy-to-let property, the higher residential rates will usually apply;
- a refund based on the property being uninhabitable is unlikely unless the condition is seriously defective, and the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.
In a lower-value example considered by Nick, a residential company purchase at £95,000 would produce SDLT of £2,850 if the 3% higher rate applied across the consideration.
Practical Steps
If you are assessing your own position, the sensible next steps are:
- Ask your conveyancer to confirm exactly which alternative property finance structure is being used.
- Ask who will submit the SDLT return or returns and why more than one SDLT5 certificate may be produced.
- Ask for a written SDLT calculation showing the consideration, the applicable rate, and whether the higher residential rates apply.
- Check whether the buyer is an individual or a company, because that can materially affect the SDLT outcome.
- If anyone suggests the property is non-residential because it is uninhabitable, gather proper evidence from the effective date of the transaction, such as survey evidence, photographs, contractor reports, and safety findings.
- Test that argument against the current high legal threshold, especially in light of Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.
- Do not assume that two SDLT5 certificates automatically create a reclaim opportunity. The substantive tax analysis matters more than the number of administrative documents.
- Make sure your conveyancer is familiar with Islamic or alternative property finance conveyancing, because these transactions often involve additional legal steps.
Conclusion
If you buy a property using a recognised Sharia-compliant finance structure, the SDLT rules are generally intended to stop the transaction being taxed twice. In most ordinary buy-to-let company purchases, SDLT will still be payable at the residential higher rates, funded by the customer as part of completion. A separate refund argument based on the property being uninhabitable will only succeed in more serious cases, and that test is now stricter following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.
Legal References Used
- Finance Act 2003
- Finance Act 2003, Part 4
- Finance Act 2003 provisions on alternative property finance
- Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799
- HMRC Practice Guide 69: Islamic financing
This page was last updated on 22 March 2026.
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