When comparing BM Solutions vs Santander buy to let mortgages, UK landlords and property investors are often looking for the best mix of competitive rates, flexible lending criteria, and long-term value. Both lenders are popular choices in the buy-to-let market, but they serve different types of borrowers and offer distinct advantages. Whether you’re expanding your portfolio or reviewing your current mortgage, understanding how these two lenders stack up in 2025 can help you make a more informed decision.
Which lender is better for buy-to-let mortgages: BM Solutions or Santander?
Both BM Solutions and Santander have strong reputations in the UK buy-to-let market, but they cater to slightly different borrower profiles. BM Solutions, part of Lloyds Banking Group, is known for its dedicated focus on landlords and offers a wide range of products specifically tailored for buy-to-let investors. They work exclusively through intermediaries and are particularly popular for portfolio landlords and those looking for a BM Solutions product transfer.
On the other hand, Santander offers buy-to-let mortgages directly and via brokers, with a more traditional lending model. Their criteria can be stricter, particularly around income verification and property types. In 2025, landlords looking for flexibility and competitive remortgage deals may lean towards BM Solutions, while those with simpler needs may find Santander suitable.
What are the key differences in lending criteria between BM Solutions and Santander?
BM Solutions is generally more flexible when it comes to lending criteria for landlords. They allow up to three applicants on a mortgage, accept up to 10 mortgaged buy-to-let properties per applicant (and even more with certain conditions), and have no minimum personal income requirement if the rental income meets affordability.
Santander, however, typically requires a minimum personal income of £25,000 for buy-to-let applicants and may have tighter restrictions on the number of properties in a portfolio. They also tend to be more conservative with their rental stress tests, which could affect how much you can borrow. If you’re a portfolio landlord or want more flexibility, BM Solutions may be the more accommodating option.
How do BM Solutions and Santander compare on buy-to-let rates in 2025?
As of 2025, both BM Solutions and Santander offer competitive rates, but BM Solutions often leads in the intermediary market with attractive fixed-rate options and lower arrangement fees. Their rates are particularly appealing for landlords looking to lock in long-term value or complete a Birmingham Midshires remortgage.
Santander’s rates are competitive for standard buy-to-let borrowers, especially those with strong credit profiles and lower loan-to-value (LTV) ratios. However, BM Solutions frequently offers more tailored deals for landlords with multiple properties, making them a go-to choice for seasoned investors.
Can I get a product transfer with BM Solutions or Santander?
Yes, both lenders offer product transfers, but the process and options differ. BM Solutions provides a streamlined product transfer service through mortgage brokers. If you’re an existing customer, you can often switch to a new rate without a full affordability assessment, making it a popular choice for landlords nearing the end of their fixed deal. You can learn more about this process in our guide to the BM Solutions product transfer.
Santander also allows product transfers, which can be done directly or via a broker. However, their process may involve more documentation, especially if there have been changes to your personal or financial circumstances. In general, BM Solutions offers a more landlord-friendly approach to switching products.
Which lender is better for portfolio landlords?
BM Solutions is widely regarded as one of the best lenders for portfolio landlords in the UK. Their criteria allow for multiple properties, and they’re experienced in dealing with complex portfolios. They also offer competitive remortgage and product transfer options tailored to landlords managing several properties.
Santander, while offering some support for portfolio landlords, tends to be more conservative. They may impose stricter affordability checks and limit the number of properties you can hold with them. For landlords managing more than four properties, BM Solutions is generally the preferred option due to their specialist underwriting and flexible lending policies.
Do both lenders support limited company buy-to-let mortgages?
As of 2025, BM Solutions does not currently offer buy-to-let mortgages to limited companies. Their products are only available to individual landlords. This is worth noting if you operate your property business through a limited company structure.
Santander also does not support limited company buy-to-let mortgages. If you’re looking for limited company lending, you may need to consider specialist lenders outside of BM Solutions and Santander. However, for individual landlords, both lenders remain strong contenders, with BM Solutions often standing out for its landlord-focused approach.
How easy is it to remortgage with BM Solutions or Santander?
Remortgaging with BM Solutions is typically a smooth process, especially if you’re an existing customer. Many landlords choose to complete a Birmingham Midshires remortgage to secure a better rate or release equity. The lender works exclusively through brokers, which helps streamline the application and ensure expert guidance.
Santander also offers remortgage options, but the application process may be more rigorous, particularly if your circumstances have changed since your original mortgage. While both lenders are reliable, BM Solutions often provides a more efficient and landlord-friendly remortgage experience.
In summary, when comparing BM Solutions vs Santander buy to let mortgages, BM Solutions tends to offer greater flexibility, better support for portfolio landlords, and a smoother product transfer process. If you’re an existing customer or considering a Birmingham Midshires mortgage, it’s worth exploring your options further. Browse our expert guides to learn more about BM Solutions and how to make the most of your buy-to-let strategy in 2025 and beyond.
