SDLT On Transferring Buy‑To‑Let To A Company And Buying A New Home

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Do you pay SDLT when transferring a rental property to your limited company and then buying a home personally?
Introduction
A common question in property tax planning is what happens for Stamp Duty Land Tax (SDLT) if an individual moves a buy-to-let property into a company and then buys a home in their own name. The answer depends on who owns the rental property at the time of the second purchase, and on the special SDLT rules that apply when property is transferred to a connected company.
This matters because the company transfer can itself trigger SDLT, and the later personal purchase may either be charged at standard residential rates or at the higher rates for additional dwellings. Timing is therefore critical.
The Question
The scenario is this:
- An individual owns a rental dwelling worth about £302,500.
- There is an outstanding mortgage of about £240,000.
- The individual wants to transfer that rental property into a limited company they control.
- After that, they want to buy a new home personally for about £675,000.
The issue is how SDLT applies to:
- the transfer of the rental property into the company; and
- the later personal purchase of the new home.
Nick’s Explanation
Nick’s core view was that the company transfer is not ignored for SDLT. Where a person transfers a property to a company they control, the connected company market value rule applies. In practical terms, that means SDLT is calculated by reference to the property’s market value, even if little or no cash is paid.
He explained the point in substance as follows:
- the company is treated as acquiring the rental property at market value;
- the company’s assumption of the mortgage is also relevant as chargeable consideration; and
- because the buyer is a company acquiring a residential property, the higher residential SDLT rates apply.
On the later personal purchase, Nick’s explanation was that the SDLT position turns on ownership at completion. If the individual still personally owns the rental property when they buy the new home, the higher rates for additional dwellings are likely to apply. If the rental property has already been fully transferred to the company before completion of the home purchase, and the individual then owns no other dwelling personally, the higher rates should not apply to the home purchase.
The Law
The main provisions are in the Finance Act 2003.
First, section 53 contains the connected company market value rule. Under section 53(1A)(a):
“Where the purchaser is a company and the vendor is connected with the purchaser, the chargeable consideration for the transaction shall be taken to be not less than the market value of the subject-matter of the transaction.”
That means a transfer to a company you control is normally taxed by reference to market value, not merely by reference to the mortgage taken over or any cash actually paid.
Secondly, Schedule 4 paragraph 8 is relevant because the assumption of debt can count as chargeable consideration. So if the company takes the property subject to a mortgage, that mortgage assumption is part of the SDLT analysis.
Thirdly, Schedule 4ZA FA 2003 imposes the higher rates for additional dwellings. Those rates apply in a range of cases, including where an individual buys a dwelling while already owning another dwelling, unless a specific exception applies. Companies buying residential property are also generally within the higher rates regime.
On the figures provided in the source explanation, the higher residential rates referred to were 5% on the first £125,000, 7% on the next £125,000, 10% up to £925,000, 15% up to £1.5 million, and 17% thereafter, as stated by reference to Schedule 4ZA paragraph 1, as amended by Finance Act 2025.
Analysis
The position can be worked through in two separate stages.
Stage 1: transfer of the rental property to the company
- The seller is the individual and the buyer is a company controlled by that individual.
- Because the parties are connected, section 53 applies.
- The company is therefore treated as giving consideration equal to at least the market value of the property.
- On these facts, that is about £302,500.
- The fact that the property is mortgaged does not reduce the effect of the market value rule. If anything, the mortgage assumption reinforces that there is chargeable consideration, but the connected company rule means the SDLT charge cannot fall below market value.
- As the purchaser is a company acquiring a residential property, the higher residential rates apply.
So the company transfer is an SDLT chargeable transaction based on the full market value figure, not just the mortgage balance and not nil.
Stage 2: personal purchase of the new home
- For an individual buying a dwelling, the key question is whether they own another dwelling at the end of the day of completion.
- If they still personally own the rental property at that point, the new purchase is usually an additional dwelling purchase and the higher rates apply.
- If the rental property has already been transferred so that it is owned by the company, and the individual no longer owns it personally, then the company’s ownership is separate from the individual’s ownership.
- In that case, assuming the individual does not personally own any other dwelling, the new home purchase should fall outside the higher rates regime and be charged at standard residential rates.
The practical result is that the order and completion timing of the two transactions can change the SDLT outcome on the home purchase. The company transfer does not eliminate SDLT overall, because that transfer itself is taxable, but it may prevent the later home purchase from being treated as an additional dwelling purchase.
It is also worth noting that some readers ask whether the rental property might be treated as uninhabitable so that residential rates or higher rates do not apply in the usual way. 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. Poor condition, dated interiors, or the need for repair will often not be enough. The test is stricter than many buyers expect.
Outcome
The practical conclusion is:
- The transfer of the rental property into the individual’s own company is chargeable to SDLT on market value, here about £302,500.
- The higher residential SDLT rates apply to that company purchase.
- The later personal purchase of the new home will usually be charged at standard residential rates only if, by completion, the individual no longer personally owns the rental property.
- If the individual still owns the rental property personally at completion of the home purchase, the higher rates for additional dwellings are likely to apply to that home purchase.
Practical Steps
Anyone in this position should work through the following points carefully:
- Confirm the current open market value of the rental property, because that figure drives the SDLT charge on the company transfer.
- Check whether the company will assume the mortgage and whether lender consent is required.
- Establish the exact intended completion order of the two transactions.
- Check whether the individual will own any other dwellings personally at the end of the day of completion of the new home purchase.
- Calculate SDLT separately for each transaction rather than assuming the company transfer is tax-neutral.
- Consider related tax issues beyond SDLT, such as possible capital gains tax consequences and any financing or company law issues.
For SDLT specifically, the key evidence is usually the transfer documentation, mortgage arrangements, valuation evidence, and the actual completion dates.
Conclusion
Moving a rental property into your own limited company does not avoid SDLT on that transfer. The company is generally taxed on the property’s market value under the connected company rules. But if that transfer completes before you buy your new home, and you then own no other dwelling personally, your personal home purchase may avoid the higher rates for additional dwellings.
Legal References Used
- Finance Act 2003, section 53
- Finance Act 2003, Schedule 4 paragraph 8
- Finance Act 2003, Schedule 4ZA paragraph 1
- Finance Act 2025, as referenced in relation to SDLT rate amendments
- Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799
This page was last updated on 22 March 2026.
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