Limited Company vs Personal Name Buy-to-Let Mortgages: Which Is Right for You?

If you are considering buying a rental property, one of the first decisions you face is whether to purchase it in your personal name or through a limited company. It is a question we get asked regularly at Drummonds Finance Group, and there is no universal right answer. What works well for one landlord can be the wrong structure for another. This guide explains the key differences from both a mortgage and a tax perspective so you can have a more informed conversation with your broker and your accountant before making a decision.

How the Mortgage Market Treats Each Structure Differently

The first thing to understand is that lenders treat limited company applications and personal applications as fundamentally different products, and the landscape for each looks quite distinct.

For personal name buy-to-let mortgages, you have access to a wider pool of lenders and generally lower interest rates. Most high street lenders and a significant proportion of specialist lenders offer personal buy-to-let products, which means more competition and more choice. Affordability is assessed against your personal income and the rental income from the property, and the application process tends to be more straightforward.

For limited company buy-to-let mortgages, the lender pool is smaller and rates tend to be higher, typically by 0.3 to 0.7 percentage points depending on the lender and the deal. Most limited company applications are through Special Purpose Vehicles, which are companies set up specifically to hold property rather than trading companies with other activities. Lenders are generally more comfortable with SPVs than with trading companies that also hold property, so if you are setting up a new company for this purpose, an SPV is usually the right structure.

Personal guarantees are almost always required on limited company applications. This means that even though the mortgage is in the company's name, the director or directors are personally liable if the company defaults, which is an important distinction to understand before assuming a company structure gives you personal financial protection.

The Tax Position and Why It Has Changed

The shift towards limited company ownership among landlords accelerated significantly after the changes to mortgage interest tax relief introduced for personal landlords from 2017 onwards. Previously, personal landlords could deduct 100% of mortgage interest from their rental income before calculating their tax bill. That deduction was progressively replaced by a basic-rate tax credit, which means higher and additional rate taxpayers in particular saw their effective tax liability on rental income increase substantially.

Limited companies are not subject to the same restrictions. They can still deduct mortgage interest as a business expense before calculating taxable profit, and profits are then subject to corporation tax rather than income tax. For landlords who pay income tax at the 40% or 45% rate, this difference can be meaningful, particularly as a portfolio grows and rental profits accumulate.

That said, the tax position is more nuanced than it first appears, and getting it wrong is costly. When you eventually sell a property held in a company, the gain is subject to corporation tax rather than capital gains tax, and extracting the remaining proceeds as a dividend or salary creates further personal tax. There is also no annual capital gains tax exemption available to a company. For landlords who plan to sell in the medium term, the tax efficiency of a company structure on the way in can be partially or fully eroded on the way out.

This is why we always recommend taking advice from a qualified tax adviser or accountant before deciding on the structure. Our role is to explain the mortgage implications clearly. The tax decision ultimately sits with your accountant, who can model both scenarios against your specific income, plans and timeline.

Rental Stress Testing: A Practical Difference

One area where the two structures genuinely diverge in a practical mortgage sense is rental stress testing. Lenders assess whether the rental income from the property is sufficient to cover the mortgage, typically at a stressed interest rate above the actual rate. For personal applications, lenders often apply a higher stress rate to higher or additional rate taxpayers to account for their larger tax liability on rental income. This can reduce the maximum borrowing available.

Limited company applications are generally stress tested at a lower rate because the company pays corporation tax rather than income tax, meaning a higher proportion of the rental income is available to service the mortgage. For landlords who are higher-rate taxpayers and want to maximise borrowing, this can make a limited company structure more practical from a pure affordability standpoint, independent of the tax considerations.

Building a Portfolio

For landlords with ambitions to build a portfolio over time, a limited company structure can offer advantages in reinvesting profits. Rental income retained within the company is only subject to corporation tax, so there is more after-tax cash available to put towards deposits on further properties compared to extracting the same income personally and paying a higher rate of income tax on it first.

This compounding effect becomes more significant the more properties are involved and the longer the investment horizon. For a landlord buying a single property with no plans to expand, the additional complexity and cost of a company structure may not be worth it. For someone with a clear plan to build a portfolio of five or more properties over ten years, the structure conversation is genuinely important from the outset.

Transferring Existing Properties Into a Company

One question we hear regularly is whether it is possible to move personally held properties into a limited company. It is possible, but it is not straightforward or cheap. Transferring property into a company is treated as a sale at market value for capital gains tax purposes, and stamp duty is charged on the transfer as well. For most landlords with established portfolios, the cost of transfer makes it unviable, which is why the structure decision is best made before the first purchase rather than revisited later.

Which Structure Is Right for You?

As a general guide, personal name ownership tends to suit landlords who are basic-rate taxpayers, who are buying a single property for supplemental income, or who want simplicity and access to the widest range of mortgage products at the most competitive rates.

Limited company ownership tends to suit landlords who pay income tax at the higher or additional rate, who plan to reinvest profits and grow a portfolio over time, or who have a longer investment horizon and are less focused on near-term capital extraction.

Neither structure is inherently better. The right answer depends on your tax position, your plans, your timeline, and how you intend to use the income the portfolio generates.

At Drummonds Finance Group, we work with individual landlords and limited company applicants across the full range of buy-to-let structures, from straightforward single property purchases to more complex portfolio landlord and student let arrangements. We can explain clearly which lenders are available for your chosen structure, how the stress testing works, and what the mortgage landscape looks like for both routes.

If you are based in Oxford, Bicester, Banbury or anywhere else in the UK, call us on 0330 1330034 or get in touch through our website to discuss your situation.

Please note that tax treatment depends on individual circumstances and may change. Always take advice from a qualified tax adviser before deciding on the ownership structure for a buy-to-let investment.

Worth noting, companies pay corporation tax on gains at 19% to 25% rather than CGT