What's the current landscape for limited company buy-to-let mortgages? Are rates significantly higher than personal mortgages, and what are the typical deposit requirements and lender criteria for a new SPV (Special Purpose Vehicle) company with no trading history?
Quick Answer
Limited company buy-to-let mortgages for new SPVs typically require 25-40% deposits, with rates around 5.5-6.5%. Lenders assess the directors' experience and the property's rental income, often with stricter stress tests than individual applications.
## Navigating Limited Company Buy-to-Let Mortgages in 2026
The current landscape for limited company buy-to-let (BTL) mortgages in the UK is shaped significantly by tax efficiency for many investors, particularly following the Section 24 changes that abolished mortgage interest deductibility for individual landlords. For companies, mortgage interest remains a fully deductible business expense against rental income, making this a favoured structure for portfolio growth. Corporation Tax is 25% for profits over £250k, 19% for under £50k, with marginal relief between. This means profits retained within the company are taxed at these rates, rather than individual income tax rates of 22% (basic from April 2027), 42% (higher from April 2027), or 47% (additional from April 2027).
### Are Limited Company BTL Rates Significantly Higher Than Personal Mortgages?
Yes, limited company buy-to-let mortgage rates are generally higher than standard residential mortgages, and often slightly higher than personal (individual) BTL mortgage rates. This is primarily due to the perceived increased risk and administrative complexity associated with lending to a corporate entity. The Bank of England base rate, currently 3.75% as of August 2026, influences all lending products, but BTL rates incorporate an additional risk premium. Typical BTL fixes vary by lender and product; always compare the latest rates, as they fluctuate daily. For example, a residential mortgage might currently offer a 2-year fix at 4.5%, while a comparable limited company BTL product could be 5.5% or more, reflecting the difference in risk appetite from lenders. This difference can add hundreds of pounds to monthly mortgage payments on a substantial loan.
### What Are the Typical Deposit Requirements for a New SPV Company?
For a new Special Purpose Vehicle (SPV) company with no trading history, typical deposit requirements for a BTL mortgage range from 25% to 40% of the property purchase price. This higher deposit is a reflection of the lender's increased risk perception for a new, non-trading entity. While some lenders might offer 20% loan-to-value (LTV) products, these are often reserved for seasoned landlords or those with significant personal assets, and are less common for a brand-new SPV. For example, on a £200,000 property, a 25% deposit would be £50,000, whereas a 40% deposit would require £80,000, a significant capital outlay.
### What Are the Key Lender Criteria for a New SPV Company?
Lenders scrutinise several key areas when assessing a new SPV company for a BTL mortgage. Firstly, the **directors' experience** in property investment is paramount; lenders typically want to see a track record of successful property ownership or management, even if not through a company. Secondly, **rental income stress tests** are critical. Lenders use an Interest Cover Ratio (ICR) to determine if the projected rental income can cover the mortgage payments comfortably. While a common conservative example is 125% rental coverage at a 5.5% notional pay rate, many lenders now use 140% or even 145% at a higher reference rate, such as 6% or 7%, making it harder for properties with lower yields to qualify. Thirdly, lenders assess the **personal finances of the directors** through personal guarantees, as the SPV itself has no trading history or significant assets. This means directors' credit scores, income, and existing debt are factored into the application. Lastly, the **property type and location** are crucial; lenders favour standard residential properties in established rental markets over more complex HMOs or properties in less desirable areas, particularly for new SPVs.
## Advantages of Limited Company BTL Mortgages
* **Tax Efficiency:** Mortgage interest is a fully deductible business expense, unlike for individual landlords post-Section 24.
* **Portfolio Growth:** Profits can be retained and reinvested in the company, allowing for tax-efficient expansion. This can lead to faster compounding of returns over time.
* **Succession Planning:** Easier to transfer ownership shares in a company than individual properties, simplifying inheritance or future sale of the business. An example would be transferring shares to family members, potentially mitigating future Capital Gains Tax (CGT) on property sale.
## Considerations for Limited Company BTL Mortgages
* **Higher Initial Costs:** Increased Stamp Duty Land Tax (SDLT) due to the 5% additional dwelling surcharge, potentially higher solicitor fees for company setup and conveyancing, and usually higher mortgage product fees. For a £250,000 property, the SDLT for an additional dwelling is 5% on £0-£125k (i.e. £6,250), then 7% on £125k-£250k (i.e. £8,750), totalling £15,000, significantly more than a first-time buyer's 0% up to £300k.
* **Increased Administration:** Mandatory company accounts, annual returns to Companies House, and potential Corporation Tax returns, requiring ongoing accounting support.
* **Higher Mortgage Rates:** As discussed, BTL rates for companies are generally higher than personal residential rates and often slightly higher than individual BTL rates, increasing monthly outgoings.
* **Personal Guarantees:** Directors are almost always required to provide personal guarantees, meaning they are personally liable if the company defaults.
## Investor Rule of Thumb
While limited company BTL offers significant tax advantages post-Section 24, carefully weigh the increased upfront costs and administrative burden against the long-term tax efficiencies and potential for portfolio growth, particularly for a new SPV without existing property assets.
## What This Means For You
Understanding the nuanced criteria for limited company BTL mortgages is essential for strategic property investment. The interplay between deposit requirements, stress tests, and director experience can be a deal-breaker for new SPVs. Most landlords don't lose money because they fail to understand the numbers, they lose money because they don't know which numbers apply to them and how lenders will assess their situation. If you want to understand the specifics of how lenders will view your limited company BTL strategy, this is exactly what we analyse inside Property Legacy Education.
Steven's Take
The shift in tax legislation with Section 24 fundamentally changed how profitable property investment is for individual landlords. Limited companies, especially SPVs, became the go-to structure for new acquisitions for many. While rates are higher and deposits larger, the ability to deduct all mortgage interest before Corporation Tax often outweighs these costs for higher-rate taxpayers expanding their portfolio. I've personally used SPVs extensively to build my portfolio, and the key is always to factor in the higher mortgage costs and stricter stress tests from the outset. Don't compare limited company rates directly to residential rates; compare them to an individual BTL after tax, and the picture becomes clearer.
What You Can Do Next
Consult a specialist limited company mortgage broker: Use a broker that specialises in limited company BTLs, such as those found via NACFB (National Association of Commercial Finance Brokers), to compare rates and understand specific lender criteria.
Engage a property tax accountant: Before setting up an SPV, speak to an accountant specialising in property investment (search 'property tax accountant' on ICAEW.com) to assess the tax implications for your personal circumstances.
Research your local Council Tax policy: Check your specific local council's website for any local premiums on second homes or empty properties that might apply if the property is not immediately let out.
Calculate your true return on investment (ROI): Factor in the higher BTL interest rates (5.5-6.5%), increased SDLT due to the 5% surcharge, and Corporation Tax rates (19-25%) when projecting your profitability.
Prepare a robust business plan: Even if not explicitly requested, have a clear plan detailing your property strategy, rental projections, and management approach, which can strengthen your application.
Check gov.uk/stamp-duty-land-tax: Understand the specific SDLT calculations for limited companies, which include the higher rates for additional dwellings.
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