Leading Buy-To-Let Mortgage Lenders

Securing the right buy-to-let (BTL) mortgage is an important consideration for landlords aiming to create a successful BTL investment strategy. With a wide range of lenders catering to landlords, it can sometimes be challenging to know which one is best suited to one’s investment strategy. This article explores some leading mortgage providers to help you make an informed choice.

What Makes a Good Buy‑to‑Let Mortgage Lender?

When selecting a lender for a BTL mortgage, landlords usually evaluate several factors, including:

1. Interest rates and fees:

Differences in interest rates and arrangement fees can have a meaningful impact on costs and, therefore, investment returns. It is important to compare not just the headline rates, but also other significant items such as early repayment charges.

2. Loan‑to‑value (LTV) ratios:

Higher LTV ratios allow landlords to borrow greater percentages of their property values and correspondingly reduce the size of the required deposits. Some lenders offer higher LTVs for experienced landlords or on certain property types.

3. Product types:

Lenders provide a variety of mortgage products, including repayment or interest‑only and fixed‑rate or tracker deals, each suited to different cash flow and risk profiles. Choosing the right product type depends on the economics of your investments and your overall investment goals.

4. Lending criteria:

These include rental cover requirements, usually between 125–145% of the monthly mortgage payment and other factors such as whether the lender supports HMOs, student lets or limited company structures. Strict criteria can limit borrowing options, especially for first‑time landlords.

5. Customer service, application speed and broker support:

A responsive lender with clear communications can reduce delays and ease the stress of mortgage applications. Brokers tend to favour lenders that provide efficient service, transparency and robust technical support.

BTL Mortgage Rates in June 2025

For a snapshot of the most competitive buy-to-let mortgage rates as of June 2025, the Homeowners Alliance has provided a comparative overview here.

Some Leading Buy‑to‑Let Mortgage Providers

1. Coventry Building Society

A major name in the sector, Coventry is one of the largest building societies. They offer competitive pricing alongside flexible terms geared to both novice and experienced BTL landlords. Click here to visit their website.

2. Kent Reliance

As part of OneSavings Bank, Kent Reliance offers specialist lending solutions, including BTL mortgages for complex cases such as multi-unit blocks, expat investors and HMOs. They offer competitive loan-to-value (LTV) ratios and also provide interest-only mortgage options. Click here to visit their website.

3. The Mortgage Works (TMW)

TMW is a specialist subsidiary of Nationwide Building Society. They provide various BTL mortgage solutions, including interest-only mortgages and flexible affordability calculations. They also offer products for first-time and portfolio landlords, as well as limited company investors. Click here to visit their website.

4. Barclays

Barclays is a reputable name in the banking sector. They also provide an attractive buy-to-let mortgage offering. Their BTL mortgage options feature competitive fixed and tracker rate solutions for different landlord LTV requirements. Barclays also provides remortgage and additional borrowing options to assist growing property portfolios. Click here to visit their website.

5. Virgin Money

Virgin Money is a well-known high-street lender offering a range of BTL mortgage products, available to limited company and individual landlords. Their mortgage solutions include longer-term fixed-rate deals, which can provide payment stability during uncertain markets. Click here to visit their website.

Some Other Leading BTL Mortgage Providers

• West One: Favoured by brokers, they deliver competitive BTL rates.

• HSBC: Offers standard and expatriate buy-to-let mortgages.

• Santander: Provides fixed and tracker BTL mortgage rate options.

How to Choose the Right Lender

1. Start with your investment type

Are you a first‑time landlord, a limited‑company investor or a portfolio landlord? Your borrower profile will determine which lenders are available to you, as some only cater to experienced or incorporated landlords, while others specialise in beginner-friendly options.

2. Assess mortgage type

Interest‑only mortgages may boost cash flow, allowing you to reinvest profits or manage operational costs more effectively. However, you must have a clear exit strategy in place for repaying the capital, whether through property sale, remortgaging or long-term savings or investments.

3. Consider rates, fees and repayment flexibility

Lower rates can be appealing but may come with higher arrangement or product fees that erode savings. Consider the full likely cost over the mortgage term, the ability to make overpayments and whether the product allows for switching without penalties.

4. Obtain comparison quotes

Use fee‑free brokers or online comparison tools such as MoneySuperMarket or CompareTheMarket to review the latest BTL mortgage offerings across various lenders.

5. Prepare documentation

Ensure that you have up-to-date documentation, including, for example, proof of income, a strong credit report, an up to date property valuation and plaisible rental income forecasts. Being organised can speed up approvals and improve your chances of securing the best available deal.

6. Plan for contingencies

Stress test your finances by modelling how interest rate increases, rental void periods or tenant arrears could affect your cash flow. This will help you build a resilient investment that can withstand market fluctuations and also regulatory changes.

Current Outlook for Landlords

This year will see landlords potentially benefitting from a competitive lending environment, as interest rates are expected to be cut further. Consider locking in good deals, but still factor in non-mortgage costs, such as stamp duty surcharges, landlord’s insurance, maintenance costs, letting agency fees and tax expenses.

Conclusion

Selecting a mortgage lender can be a little complex, but with knowledge about leading lenders and current market conditions, you can secure optimal deals for your BTL investment. For example, consider your deposit capacity, risk appetite and long‑term exit strategy when comparing options. With informed planning, the right BTL mortgage can significantly enhance your buy-to-let property returns and support your ambitions as a landlord.

FAQs

Q: What is a buy-to-let mortgage?

A: A buy-to-let (BTL) mortgage is a type of loan specifically designed for purchasing or remortgaging a property that will be rented out to tenants. These mortgages are typically structured differently from residential mortgages, with eligibility based more on the property's rental income than the borrower's personal earnings.

Q: How much of a deposit do I need for a buy-to-let mortgage?

A: Most buy-to-let mortgages require a minimum deposit of 20–25% of the property's value, although some lenders may ask for a lot more depending on the borrower's profile and the property's risk and economics. A larger deposit often gives access to lower interest rates.

Q: Are interest-only BTL mortgages a good idea?

A: Interest-only buy-to-let mortgages can be beneficial for landlords seeking to maximise monthly cash flow, as they involve lower payments during the mortgage term. However, they also require a clear plan for repaying the original loan amount at the end of the term, such as through a property sale, refinancing or savings and investments.

Q: Can I get a buy-to-let mortgage through a limited company?

A: Yes, many landlords choose to purchase rental properties through a limited company structure for potential tax advantages. However, the application process and lending criteria for these can be different, and mortgage rates for companies may be higher than for individual applicants.

Q: What are the rental income requirements for a BTL mortgage?

A: Most lenders require that the expected rental income is greater than the mortgage payment, typically between 125% and 145% of rental income. This is used to assess whether the property will generate sufficient income to cover monthly mortgage payments confortably.

Q: Should I use a mortgage broker when applying for a BTL mortgage?

A: Using a broker can be beneficial, especially if you are new to property investing or have complex needs. Brokers can help compare mortgage products across multiple lenders, identify the best deals and guide you through the application process.

Q: What are some of the risks associated with buy-to-let mortgages?

A: Risks include property value fluctuations, rental void periods, interest rate increases and regulatory changes affecting landlord responsibilities and tax liabilities. It is important to factor these risks into your investment strategy and have contingency plans in place.

Additional Sources:

https://www.landlordstudio.com/uk-blog/buy-to-let-mortgages

https://hoa.org.uk/best-buy-to-let-mortgage-rates/

https://ukmoneyman.com/what-is-the-criteria-for-a-buy-to-let-mortgage/