Buying property through a limited company used to be something only larger landlords bothered with. That’s changed. In 2025, 43% of mortgaged buy-to-let purchases in the UK went through a company, up from 35% the year before and just 7.5% back in 2018. It’s not a niche move anymore. It’s fast becoming the default way new purchases get structured. If you’re weighing up whether to buy in your own name or set up a company first, here’s what’s actually driving that decision.
Who Actually Owns The Property Once You Incorporate
Before you get into mortgages or taxes, it helps to be clear on what actually changes when you buy through a company. It’s not just a paperwork difference. It shifts who legally owns the property and how lenders view the purchase. Here’s what that looks like in practice.
The company holds the property, not you
When you buy through a limited company, the property sits on the company’s books. You’re a director and shareholder, but legally, you don’t own the house or flat. The company does. That’s the whole point of the structure: it separates the asset from you personally.
Why lenders want a clean company
Most buy-to-let lenders will only work with a Special Purpose Vehicle, a company set up purely to hold property, with no other trading activity. If your company sells other things or runs a different business alongside it, most lenders will turn the application down. They want the accounts simple and the purpose obvious.
Why Did The Tax Math Push Investors This Way
This is really where the shift started. Once you see how personal ownership and company ownership are taxed differently, it’s easy to understand why so many landlords made the switch. It comes down to one change from HMRC that hit personal landlords hard.
What Section 24 changed
Before 2017, landlords could deduct mortgage interest in full before working out their tax bill. Section 24 removed that for personal ownership and replaced it with a flat 20% tax credit instead, no matter how much tax you actually pay.
Company profit vs personal profit
Here’s what that looks like with real numbers:
· £15,000 in mortgage interest at 40% tax used to save you £6,000 a year
· Under Section 24, that same £15,000 only gets you a £3,000 credit
· A company can still deduct the full interest as a business expense, then pays corporation tax at 19–25% on what’s left
That gap, repeated across a whole portfolio, is the real driver.
What A Lender Wants Before They Say Yes
The company structure sounds like it protects you fully, but lenders have their own way of closing that gap. Before they approve a mortgage, there’s a specific checklist most of them work through.
Personal guarantees are non-negotiable
Almost every lender will ask directors to personally guarantee the mortgage. So if the company can’t pay, you’re still on the hook. Limited liability protects your personal assets in most situations, but not this one.
Directors are capped, and rates run higher
Most lenders cap a company at four directors or shareholders. Rates also sit around 0.3–0.7% above equivalent personal buy-to-let mortgages, since lenders treat company applications as slightly more complex to underwrite.
When Investors Start Managing More Than Just The Money
A few properties are easy to run alongside a full-time job. A growing portfolio isn’t. At some point, most investors start asking whether it still makes sense to pay a letting agent on every single property, or whether it’s worth bringing that side in-house instead.
Why self-managing starts to make sense
Once a company holds a decent block of properties, the management fees add up fast, and a lot of investors already know their tenants, their properties, and their local market better than an outsourced agent would.
Turning it into its own business
Some take this further and set up their own lettings arm rather than just managing their own stock. That usually starts with a proper estate agent business plan, since it’s a separate business that needs its own structure, and often its own funding, before it can take on other landlords’ properties.
Setting The Company Up The Right Way
This part sounds technical, but it’s really just about making sure the company looks like what it actually is before a lender ever sees it. A few things matter more than people expect:
· SIC code: Use one that actually describes property, usually 68100 for buying and selling, or 68209 for letting and managing. Get this wrong, and lenders may question what the company does.
· Articles of association: These need to reflect a genuine property business, not generic boilerplate carried over from a template.
· Company history: Avoid buying an old “off-the-shelf” shell company to save time. Most lenders reject these outright, since they want a company built specifically for property, with no unrelated trading history attached to it.
Where The Spare Capital Goes Next
Not every investor with equity sitting idle wants another mortgage. A lot of portfolio landlords now hold properties at low loan-to-value, and rather than gearing up for one more purchase, some choose to put that capital into something completely different.
A franchise in property management, cleaning, or lettings is a common choice, since it uses skills and contacts they already have from running their own portfolio. Before signing anything, most treat it the same way they’d treat a new property purchase: they build a proper franchise business plan first, to check the numbers actually work before committing capital to it.
It’s not the right move for everyone, but for landlords sitting on unused equity, it’s becoming a genuine second option.
Where New Investors Usually Trip Up
Most mistakes happen before the company even buys anything, usually when someone tries to move into an existing property.
1. Underestimating the transfer costs
Moving a property you already own into a company counts as a sale. That means SDLT and capital gains tax both apply, and on a decent-sized portfolio, that bill can run into tens of thousands.
2. Assuming limited liability covers everything
It doesn’t stretch to the mortgage. Lenders will still ask for a personal guarantee regardless of the company structure.
3. Ignoring the rate premium
Company mortgages sit higher than personal ones, and that adds up over a full term if it’s not budgeted for from the start.
FAQs
Is it worth transferring existing properties into a limited company?
It depends on the numbers. You’ll need to weigh the ongoing tax savings against a one-off SDLT and capital gains tax bill, which can be significant on a larger portfolio.
Do I still pay tax personally on rental income from a company?
Yes, but only when you take money out of the company as salary or dividends. Profit left inside the company is taxed at corporation tax rates instead.
Can one limited company hold buy-to-let properties for more than one investor?
Yes, a company can have multiple directors and shareholders, though most lenders cap this at four people per company.
Getting The Numbers Right Before You Commit
Incorporation isn’t right or wrong on its own. It depends on your portfolio, how it’s mortgaged, and what you’re building toward. The decision shouldn’t rest on trend alone. Before you incorporate, sit down with an accountant who knows property and run your actual numbers through both personal and company ownership. The tax savings can be significant, but so can the transfer costs if you’re moving existing property in. Get that comparison done properly, and the right answer becomes fairly clear.
