“Use an SPV” has become the default advice on every property forum. It is often right. It is sometimes wrong. The difference comes down to what you are trying to achieve, how long you intend to hold, and how much friction you are willing to take on for the structure to be worth it.
What an SPV actually is
A Special Purpose Vehicle is just a limited company set up to hold a single property or project, separate from your other affairs. There is nothing technically special about it — it is an ordinary limited company with a narrow purpose. The “special” part is the discipline of using it for one thing only.
Why developers and investors use them
The three structural reasons are usually:
- Ring-fencing. If the project goes wrong — cost overrun, planning dispute, supplier insolvency — the consequences are confined to the SPV. Your other projects and personal assets are not in scope.
- Financing. Most development and BTL lenders prefer to lend to a single-purpose vehicle. It makes the security clean.
- Exit. Selling the SPV (the shares) rather than the underlying property can sometimes change the tax position for the seller, and can simplify the deal for a buyer who wants the structure to come with the asset.
The tax case for an SPV
Inside a company, profits are taxed at corporation tax rates rather than income tax. For higher-rate taxpayers, that is meaningful — particularly for buy-to-let where the mortgage interest restriction (Section 24) bites on personal ownership. Interest is fully deductible inside a company; it is only relievable as a basic-rate credit personally.
If profits stay in the company and roll into the next project, the second layer of tax (income tax on extraction) is deferred. The company becomes a compounding machine.
The case against
SPVs cost money to set up, file accounts and tax returns, and run a payroll if you draw salary. The annual admin overhead is modest but recurring. More importantly:
- Double taxation on extraction. Profit taxed inside the company once; taxed again as a dividend when extracted personally. If you need the cash now, the combined cost can exceed personal ownership.
- Mortgage rates and choice. Lending to a company has historically had fewer products and higher rates than personal BTL. The gap has narrowed but it is still there.
- SDLT on transfer in. Moving an existing property into a company is a sale at market value — capital gains tax for you, SDLT for the company (including the additional-dwelling surcharge). The costs of getting in can be substantial.
Single project vs portfolio SPV
Most lenders want one SPV per project for development. For BTL portfolios, the call is between one SPV holding everything (simpler, one set of accounts, all the loans in one place) or one SPV per property (cleaner ring-fencing, more refinancing flexibility, but more admin). For larger portfolios, a holding company over multiple property SPVs is the common shape — concentrating cash flow upstairs while keeping each property ring-fenced downstairs.
Common mistakes
- Setting up an SPV for a single small project you intend to sell quickly — the overheads can wipe out the structural benefit
- Moving an existing personal portfolio into a company without modelling the SDLT and CGT cost of incorporation
- Drawing rental profits as dividends every year as if the company were just a wrapper — defeating the deferral case for using one
- Mixing personal and SPV transactions, undermining the ring-fence
So when does an SPV make sense?
Roughly: when you are a higher or additional-rate taxpayer, you intend to build or hold rather than sell quickly, you do not need to extract the profits personally in the short term, and you are willing to take on modest annual admin. When several of those conditions are true, the case strengthens. When few are, personal ownership is often cleaner.
The decision is also influenced by what comes next — the next project, succession to family, eventual exit. This is the kind of question worth talking through under our Property Advisory service before you commit, rather than after.
For a deeper dive on the personal-vs-company decision specifically for buy-to-let, see Buying Property Through a Limited Company.
Common questions
What is an SPV in property?
An SPV (Special Purpose Vehicle) is a limited company set up to hold a single property or project. SPVs are the standard structure for buy-to-let mortgages held in a company and for development projects, because they ring-fence each project from the rest of your affairs.
Should I use an SPV for a single buy-to-let?
It depends on your tax bracket, your plans for the rental profit, and how long you intend to hold. For higher-rate taxpayers building a portfolio over time, the SPV route tends to pay off. For a single property you intend to sell soon, the costs of setting up and running it often outweigh the benefit.
Can I put my existing buy-to-let portfolio into an SPV?
Yes, but it counts as a sale to the company at market value — triggering CGT for you and SDLT for the company. Incorporation relief can apply for genuinely run property businesses but the conditions are strict. The cost of moving in needs to be modelled before you commit.
Do I need a separate SPV for each property?
Not necessarily. For development projects, lenders usually want one SPV per project. For BTL portfolios, it depends on financing flexibility, the size of the portfolio, and how much admin you want to take on. A holding company over multiple property SPVs is the common shape at scale.
Kieran Holsgrove is a Director and Co-Founder of Grafene Accounting, the property tax specialist firm based in Liverpool. He advises property developers, investors and landlords across Merseyside, Greater Manchester, Lancashire and Cheshire on tax structuring, developer VAT, SDLT and the long-view decisions that compound over the life of a portfolio.
This article is general information, not personal tax advice, and tax rules change. Your own position depends on facts we cannot see from here — please take advice before acting on anything above.