Choosing a property company structure is really three decisions stacked together: are you an investor or a developer, how many properties will sit inside the wrapper, and how will the profit come back out to you. Get those three right and the structure almost picks itself. Get them wrong and you can lock a gain into the wrong entity, lose a relief you assumed you had, or pay stamp duty twice on the same bricks.
This guide compares the structures UK landlords actually use, the special purpose vehicle (SPV), the holding company, the trading company and the limited liability partnership, sets out the tax on each, and then works through the structural questions that decide between them: single versus multiple SPVs, director's loan accounts, and how to move existing property in without an avoidable tax bill.
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The structures at a glance
Before the detail, here is how the main routes compare on the points that usually decide between them. No structure is best in the abstract; the right one depends on portfolio size, whether you keep or sell, and your personal tax position.
| Feature | Single SPV | Multiple SPVs | Holding company + PropCos | LLP |
|---|---|---|---|---|
| Best suited to | 1 to a few properties | Several distinct properties or projects | Larger portfolios (around 10+) | Partners wanting flexible profit shares |
| Tax on profit | Corporation Tax | Corporation Tax (per company) | Corporation Tax (per company) | Income tax on each member's share |
| Section 24 applies? | No | No | No | Yes (members taxed as individuals) |
| Risk ring-fencing | One pool of assets | Per property | Per subsidiary | Limited liability, shared pool |
| Group relief between entities | Not applicable | No (separate companies) | Yes | Not applicable |
| Sell one property cleanly | Sell the asset | Sell the company shares | Sell the subsidiary shares | Sell the asset |
| Ongoing admin | Low | Multiplies per company | Higher (group filing) | Moderate |
Special purpose vehicle (SPV): the default for buy-to-let
An SPV is a limited company set up to do one thing, hold property, with no trading activity attached. It is the structure the overwhelming majority of incorporated landlords use, and it is what buy-to-let mortgage lenders expect to see, often identified by specific SIC codes (68209 for letting and operating of own or leased real estate, or 68100 for buying and selling). A lender writing a buy-to-let product wants a clean company whose only purpose is the property securing the loan, which is exactly what an SPV is.
How an SPV works in practice
Each SPV typically owns one property or a small cluster of related properties. An investor might run "Northern Lets 1 Ltd" for a Manchester terrace and "Northern Lets 2 Ltd" for a Leeds flat, each with its own bank account, accounts and Corporation Tax return. The shares in each company are held by the investor (and sometimes a spouse or family members through different share classes), and rent flows into the company rather than to the individual.
The tax on an SPV
An SPV pays Corporation Tax, not Capital Gains Tax. For 2026/27 that means 19% on profits up to £50,000, 25% on profits of £250,000 and above, and an effective marginal rate of 26.5% in the band between (with the £50,000 and £250,000 limits divided by the number of associated companies, which is exactly why running many SPVs can compress everyone into the marginal band). Crucially, the company pays the same Corporation Tax on a chargeable gain when it sells a property as it does on rental profit. There is no separate 18%/24% rate and no £3,000 annual exempt amount; companies sit outside the personal CGT regime entirely.
Against that, the company deducts mortgage interest in full before tax. The Section 24 restriction that caps individual landlords at a 20% basic-rate credit simply does not apply to a company, because it is an income tax rule. For a higher-rate landlord with significant borrowing, that difference is the single biggest driver of the incorporation decision.
The watch-out: close investment-holding company status
One trap worth flagging. A pure-investment company can be a close investment-holding company (CIHC), which is denied the 19% small profits rate and taxed at 25% on all profit regardless of how small. The good news for most landlords is that the qualifying-purpose carve-out takes a company that lets property commercially to unconnected tenants out of CIHC status, so a normal buy-to-let SPV is usually safe. A company that mainly holds cash, shares, or property let to connected people (family) is the one at risk. Our guide to the close investment-holding company rules works through where the line falls.
SPV advantages and drawbacks
Advantages
- Full mortgage interest relief, with no Section 24 restriction
- Corporation Tax rates that can sit well below higher-rate income tax
- Limited liability and, with one property per company, clean risk ring-fencing
- A property company can be sold by share sale, sometimes more attractively than selling the asset
- A director's loan credit balance created at incorporation gives a tax-free extraction runway
Drawbacks
- A second layer of tax when profit is extracted as dividends or salary
- Separate accounts, a CT600 and Companies House filings for each company
- Associated-company rules can squeeze multiple SPVs into the 26.5% marginal band
- Mortgage rates and arrangement terms on company lending are usually less keen than personal buy-to-let
Single SPV or multiple SPVs?
This is the question that comes up most once a landlord decides to incorporate, and it does not have a universal answer. It is a genuine trade-off between risk isolation and administrative drag.
Multiple SPVs ring-fence each property. A dispute, a defaulting tenant, or a problem build in one company cannot reach the assets in the others, and you can sell or refinance one property company without touching the rest. The price is duplication: every company is its own filing entity, and the associated-company rules mean the profit limits are shared across them all, so several profitable SPVs can each lose the benefit of the 19% rate sooner than a single company would.
One company holding everything is cheaper and simpler to run, with a single set of accounts and one return. The cost is concentration: every property sits in the same legal entity, so a liability arising on one reaches all of them, and selling a single property means selling the asset rather than a clean company.
Lenders shape this too. Many buy-to-let products are written against single-property SPVs, so the structure is sometimes dictated by the financing rather than chosen freely. A common middle path is to group similar properties (for example, all the student HMOs, or all the properties in one city) into a handful of SPVs sitting under a holding company. Our deeper look at when a holding company structure makes sense works through where that line sits.
Holding company structure: the layer above the SPVs
A holding company structure puts a parent company, often called TopCo, above one or more property-owning subsidiaries (PropCo 1, PropCo 2, and so on). The parent owns the shares; the subsidiaries own the property. It is the structure larger and more institutional portfolios gravitate towards.
Why investors use it
The holding company sits at the centre of three useful mechanics:
- Group relief. Losses in one subsidiary (say a property mid-refurbishment with no rent yet) can be surrendered against profits in another, so the group pays tax on its net position rather than property by property.
- Cleaner disposals. A single subsidiary can be sold by selling its shares, leaving the rest of the group intact. Buyers sometimes prefer acquiring a company to acquiring a property.
- Centralised cash and succession. Profit can be moved up to the parent (intra-group dividends between UK companies are generally exempt from further Corporation Tax) and redeployed, and the group is a tidier base for passing value to the next generation.
The cost of the extra layer
Every company in the group files its own accounts and return, so the compliance load is higher. Moving property between group members can be SDLT-free under group relief, but that relief is clawed back if the company that received the property leaves the group within three years, which is a real risk if you later sell an SPV with portfolio properties inside it. A holding company also rarely earns its keep below roughly ten properties; for smaller portfolios the added complexity usually outweighs the benefit. For the moving-property-between-companies mechanics, see how to transfer property into a limited company.
Trading company versus investment company
This classification quietly governs which reliefs you can reach, so it is worth getting right before you build the structure around it.
Investment company: where almost all landlords sit
A company that holds property to earn rent and capital growth is an investment company. That is the standard buy-to-let position regardless of how many properties you own. Investment companies do not qualify for Business Asset Disposal Relief, and gift holdover relief (which lets you defer a gain when you give away an asset) is not available, because both are restricted to trading businesses and trading-company shares.
Trading company: the narrower case
A property company is treated as trading where it develops or builds property for sale, buys and sells frequently for profit, or runs a genuine service business such as serviced accommodation with substantial services attached. The trading label opens the door to reliefs the investment landlord cannot use, but HMRC tests it hard, and a portfolio that simply lets property, however actively managed, is not trading. Where a company developing for sale incorporates, an extra trap applies: property appropriated as trading stock cannot use section 162 incorporation relief, as our note on the trading-stock and section 162 denial for developers explains.
Hybrid activity
Some companies do both: holding rental property long-term while developing other sites for sale. HMRC looks at each activity on its own facts, so a hybrid company needs careful accounting to keep the investment and trading sides distinct.
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The limited liability partnership (LLP) alternative
An LLP is not a company, but it is a common structure in property and deserves a place in the comparison. It gives members limited liability while remaining tax transparent: the LLP itself pays no Corporation Tax, and each member is taxed on their share of profits and gains as an individual.
That transparency is the point and the limitation. Members can vary profit shares year to year, which suits partners with different tax positions, and an LLP is often the partnership stepping-stone before a section 162 incorporation, because running a genuine letting partnership through an LLP can help evidence the "business" needed for incorporation relief. But because members are taxed as individuals, an LLP does not escape Section 24, and it offers none of the Corporation Tax rate advantage that drives most landlords to incorporate. A Community Interest Company, occasionally raised, is a social-enterprise vehicle with restrictions on profit distribution and is not suitable for ordinary property investment.
Moving existing property into a company without an avoidable tax bill
Most landlords are not starting from scratch; they already own property personally and want to know what it costs to move it into a company. Two taxes bite on the way in.
Capital Gains Tax and section 162 incorporation relief
Transferring property to a company is a disposal at market value, so a gain can crystallise even though no cash changes hands. Section 162 incorporation relief can defer that gain by rolling it into the base cost of the shares you receive, but only if you transfer a genuine property business (all the business assets, in exchange wholly or mainly for shares) and the activity is run as a business rather than passive ownership. HMRC looks for active, time-significant management, typically a portfolio of several properties under hands-on control, with the threshold drawn from Ramsay v HMRC [2013]. A single buy-to-let on a letting agent's full management is unlikely to clear it. The mechanics, including the partnership route to evidence business activity, are set out in our guide to section 162 incorporation relief for property landlords.
Stamp duty, charged again
Incorporation relief defers the CGT; it does nothing for stamp duty. The transfer of property to a connected company is normally chargeable to SDLT (or Land Transaction Tax in Wales, or Land and Buildings Transaction Tax plus the Additional Dwelling Supplement in Scotland) at market value, including the additional-dwellings surcharge, which means landlords can effectively pay stamp duty a second time on property they already own. This is frequently the largest single cost of incorporating, often dwarfing the deferred CGT, and it is the reason incorporation is not automatically worthwhile. Genuine partnerships can sometimes access partnership relief to reduce the SDLT, but the conditions are strict. We cover the trap in paying stamp duty twice on incorporation.
The director's loan account: your tax-free runway back out
When you incorporate, the value you inject often creates a credit balance on your director's loan account, money the company formally owes you. You can draw that balance back out tax-free, ahead of any dividend or salary, until it is exhausted. On a portfolio incorporation this can be a substantial sum and a genuinely valuable feature, effectively letting you extract early profit without a dividend tax charge. The discipline is to track it: once the credit runs out you are back to dividends and salary, and an overdrawn loan account (where you owe the company) triggers a section 455 Corporation Tax charge if it is not cleared within nine months of the year-end. Our guide to the director's loan account mechanics walks through the repayment order.
How profit comes out, and why it shapes the structure
Incorporating creates a second tax point. The company pays Corporation Tax on its profit; then you pay tax again when you take that profit out personally. The usual extraction order is director's loan repayment first (tax-free while the balance lasts), then dividends, then salary, then pension contributions. Dividend rates for 2026/27 are higher than in prior years, so the headline Corporation Tax saving is only part of the picture: a landlord who needs to spend all the rent each year sees less benefit from a company than one who can leave profit inside it to compound or reinvest. This is why the structure decision cannot be separated from your spending needs. A landlord rolling up profit to buy more property is a strong incorporation candidate; one living off the rent is often better off personally.
How the April 2027 changes affect the decision
From 6 April 2027, separate property income tax rates of 22% basic, 42% higher and 47% additional apply to individual landlords' property income across England, Wales and Northern Ireland. Scotland sets its own income tax and is not in this regime for 2027/28. These rates were enacted in Finance Act 2026, so they are settled law rather than proposal. Importantly, the Section 24 basic-rate reducer rises to 22% at the same time, staying matched to the new basic rate, so no new wedge opens for basic-rate landlords. What does change is the gap at the top: the spread between the 42%/47% personal property rates and Corporation Tax widens, which sharpens the case for incorporating a larger, higher-rate portfolio that retains profit. It does not change the arithmetic for a basic-rate landlord, and it does not remove the upfront SDLT and CGT cost of getting property into a company. Our 2027 rates and the incorporation decision guide models the threshold.
Making Tax Digital and your structure choice
Making Tax Digital for Income Tax is live for individual landlords on a phased basis: mandatory from 6 April 2026 where qualifying property and self-employment income exceeds £50,000, from 6 April 2027 above £30,000, and from 6 April 2028 above £20,000. It means quarterly digital reporting on the personal side. Companies sit outside MTD for Income Tax and report through the Corporation Tax return instead, with MTD for Corporation Tax expected at a later date. For a landlord on the incorporation fence, the prospect of quarterly MTD filing personally is one more weight on the company side of the scale, though it should not be the deciding factor on its own. Our Making Tax Digital for landlords guide covers the qualifying-income test in detail.
Choosing the structure that fits
Pulling the threads together, the structure follows from a short sequence of questions. Are you investing or developing, which fixes whether you are an investment or trading company and which reliefs you can reach. How many properties will the wrapper hold, which points to a single SPV, multiple SPVs, or a holding company. How will profit come out, which decides whether the second layer of tax erodes the Corporation Tax saving. And if you already own the property, what does it cost to move it in, where the SDLT bill and the section 162 test usually matter more than anything else.
None of these has a default answer that works for everyone, which is exactly why a structure that suits a four-property higher-rate landlord building a portfolio can be the wrong one for a two-property basic-rate landlord living off the rent. The most expensive mistakes we see are structural and hard to unwind: property locked into a company that did not need to be incorporated, a gain crystallised without incorporation relief, or stamp duty paid a second time on a transfer that a partnership route could have softened. Modelling the specific numbers before anything moves is what separates a structure that earns its keep from one that simply adds cost. If you want that modelling done against your own portfolio, a specialist property accountant is the person to do it, ideally alongside a solicitor for the legal side. Specialist incorporation support can then set the chosen structure up correctly from day one.