Limited Company Buy-to-Let Explained: Complete SPV Guide for UK Landlords 2026

Limited company buy-to-let explained in one sentence: instead of owning rental property in your own name, you set up a limited company — a property SPV — to buy and hold it, which lets the company deduct 100% of mortgage interest and pay corporation tax of 19–25% rather than income tax of up to 45%. For a higher-rate taxpayer with a £180,000 mortgage at 5.5%, that single difference is worth roughly £3,960 a year in tax saved. This guide walks through what an SPV actually is, the real costs, the mortgage trade-offs, and a side-by-side comparison so you can decide whether the structure fits your numbers.

Since the Section 24 mortgage interest restriction was fully phased in from 2020, the share of new buy-to-let purchases bought through limited companies has climbed past 70%. It is now the default for serious portfolio landlords — but it is not automatically the right answer for everyone, and the wrong choice can cost thousands in unnecessary running costs or double taxation.

Property SPV meaning: what an SPV actually is

The property SPV meaning trips a lot of new investors up because it sounds more exotic than it is. SPV stands for Special Purpose Vehicle — and for buy-to-let, it is simply an ordinary limited company set up for the single purpose of holding and renting property. There is no separate "SPV" company type at Companies House. You incorporate a normal Ltd company; what makes it an SPV is that you give it property-only activity codes and use it for nothing else.

When you register, you choose SIC codes (Standard Industrial Classification codes) that describe what the company does. For a buy-to-let SPV, lenders want to see clean property codes such as:

• 68100 — buying and selling of own real estate
• 68209 — other letting and operating of own or leased real estate
• 68201 — renting and operating of Housing Association real estate
• 68320 — management of real estate on a fee or contract basis

The reason lenders insist on a clean SPV rather than a general trading company is risk. A trading company that also sells, say, building services carries liabilities and cashflows that complicate the security on the property. An SPV does one thing, so underwriting is simpler and the product range is wider. If you already have a trading limited company, do not buy property through it — set up a separate SPV.

Limited company buy to let tax advantages in 2026

The limited company buy to let tax advantages are the whole reason this structure exploded in popularity. Four matter most:

1. Full mortgage interest relief

This is the big one. An individual landlord can no longer deduct mortgage interest from rental income — they get a 20% tax credit instead (Section 24). A company deducts 100% of mortgage interest as a normal business expense. For a leveraged landlord, this is the difference that makes or breaks the case.

Take a property with £14,000 gross rent and £9,900 of mortgage interest (£180,000 at 5.5%). A higher-rate individual is taxed on most of the rent and only gets a £1,980 credit. A company is taxed on the £4,100 net profit. On those numbers the company saves around £3,960 a year — every year you hold it.

2. Lower headline tax rate

Company profits are taxed at corporation tax, not income tax. In 2026 that means 19% on profits up to £50,000, tapering to 25% on profits above £250,000, with a marginal band in between. Compare that to income tax of 20%, 40% or 45% on personal rental profit. A higher-rate landlord pays 40–45%; the same profit in a company pays 19–25%.

3. Reinvestment without a personal tax hit

If you are building a portfolio, you want to recycle profit into the next deposit. In a company, retained profit is taxed only at corporation tax and can be reinvested in full — no second tax charge until you take money out personally. This compounding effect is powerful for a landlord pursuing a buy, refurbish, refinance approach. See our complete BRRR strategy guide 2026 for how that recycling works in practice.

4. Easier succession and IHT planning

Shares are far easier to gift than fractions of a property. You can issue different share classes, bring family in gradually, and plan around inheritance tax without triggering a property sale. None of this is a substitute for advice, but it is structurally simpler than co-owning bricks and mortar.

For the full picture on landlord taxation — including how dividends, CGT and SDLT interact — read our property tax guide for landlords 2026.

Buy to let limited company vs personal name: the numbers

The buy to let limited company vs personal name decision should be made on a spreadsheet, not on instinct. Here is a simplified single-property comparison for a higher-rate (40%) taxpayer, holding one property for a full year.

Assumptions: £14,000 gross annual rent, £9,900 mortgage interest, £1,500 other allowable costs (insurance, letting, maintenance).

The company keeps £526 more per property per year, and that gap widens as rates rise or you add properties. But there is a catch: the £2,106 is sitting inside the company. If you draw it out as a dividend you pay dividend tax on top (8.75% basic, 33.75% higher, 39.35% additional, after the small dividend allowance). That second layer is why the structure suits investors who reinvest rather than those who need the income to live on.

For a basic-rate (20%) taxpayer, the maths often flips. With income tax at 20% and the full Section 24 credit clawing back most of the interest restriction, a basic-rate landlord can end up paying less overall in personal name — and avoids the double-tax-on-extraction problem entirely. Model your own figures in the deal analyser before committing either way.

Buy to let limited company pros and cons

Weighing the buy to let limited company pros and cons honestly is the difference between a structure that saves you money and one that just adds admin.

Pros

• Full mortgage interest relief — no Section 24 restriction.
• Lower tax rate on profit (19–25% vs up to 45%).
• Tax-efficient reinvestment of retained profit into new deals.
• Limited liability — your personal assets are separated from company debts (though lenders still require personal guarantees).
• Cleaner succession planning through shares.

Cons

• Double taxation on extraction — corporation tax then dividend tax when you take profit out.
• Higher mortgage rates and fees — typically 0.2–0.5% more than equivalent personal products.
• Running costs — accountancy, confirmation statements and company tax returns add £800–£2,000+ a year.
• Personal guarantees mean limited liability is partly theoretical for the mortgage debt.
• Costly to transfer existing property in — CGT and SDLT can apply (see below).

What it costs to set up and run a property SPV

Setting up is cheap and fast. Incorporating directly at Companies House costs £50 online and takes a day; a formation agent that handles SIC codes and registers for corporation tax typically charges £100–£300. You will need at least one director and one shareholder (which can be the same person), a registered office address, and a business bank account.

The real cost is ongoing. Budget for:

• Accountancy: £800–£2,000 a year for year-end accounts and the CT600 corporation tax return.
• Confirmation statement: £34 a year to Companies House.
• Bookkeeping software or time: modest but real.
• Higher mortgage costs: factored into every deal.

As a rule of thumb, the company structure costs £1,000–£2,500 a year more to run than holding personally. That is why a single low-yielding property rarely justifies it, but a portfolio of three or more usually does — the tax saving scales with the debt, while the running cost is broadly fixed.

Limited company buy-to-let mortgages: what to expect

SPV mortgages are a mature market in 2026, with dozens of lenders competing — but they price differently to personal buy-to-let. Expect rates around 0.2–0.5% higher than the equivalent personal product, plus arrangement fees that are sometimes percentage-based rather than flat. Stress testing is typically more generous, though, because companies are assessed at a lower notional tax rate, which can let you borrow more against the same rent.

Lenders will want a clean SPV with correct SIC codes, personal guarantees from the directors, and often a minimum of 20–25% deposit. First-time landlords can get SPV mortgages, but the cheapest products go to experienced applicants. For the wider lending picture, rate outlook and product criteria, see our buy-to-let mortgage guide 2026.

If you want hands-on training and a community that builds portfolios through SPVs — including sourcing, finance and deal structuring — the Progressive Property network is where a lot of UK limited company landlords cut their teeth.

Should you transfer existing properties into a company?

This is where landlords most often go wrong. Moving a property you already own personally into your company is legally a sale at market value — even though you own both sides. That can trigger two taxes:

• Capital gains tax on the gain since you bought it (18%/24% on residential property for 2026).
• Stamp duty land tax, including the 5% additional-property surcharge, because the company is a new buyer.

On a £250,000 property bought years ago with a £100,000 gain, you could face £20,000+ in CGT and £10,000+ in SDLT — over £30,000 to move one property. Incorporation relief and genuine partnership structures can reduce or defer the CGT in specific cases, but the qualifying conditions are strict and HMRC scrutinises them. For most landlords the answer is: keep legacy property in personal name and buy new stock through the SPV. Always take regulated tax advice before any transfer.

Who should use a limited company for buy-to-let?

Putting it together, the structure tends to suit you if you are a higher- or additional-rate taxpayer, you are leveraged with mortgages, you plan to reinvest rather than spend the rent, and you are building a portfolio of three or more properties. It tends not to suit you if you are a basic-rate taxpayer, you own one or two low-geared properties, or you need the rental income to live on and would be taxed twice extracting it.

Whichever way you lean, the decision is numbers-first — run your own scenario rather than copying someone else's. Explore the full range of approaches in our property strategies hub, and model the tax impact of any deal in the D for Deals calculators before you commit capital.