At Yellow Financial Services, we provide expert buy to let mortgage advice to clients across Boston, Lincolnshire and beyond. With over 50 years of combined experience, we help property investors find the right mortgage solutions to match their goals.
YOUR HOME OR PROPERTY MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON YOUR MORTGAGE.
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Investing in property can be a powerful way to build long-term wealth – and a buy to let mortgage is often the first step.
Whether you’re considering becoming a landlord for the first time or expanding an existing portfolio, understanding how buy to let mortgages work is essential. From deposit requirements and rental income rules to lender criteria and tax considerations, there are key differences compared to standard residential mortgages.
MOST BUY TO LET MORTGAGES ARE NOT REGULATED BY THE FINANCIAL CONDUCT AUTHORITY.
A buy to let mortgage is designed for people who want to purchase a property with the intention of renting it out to tenants.
Unlike a residential mortgage, which is based primarily on your income, a buy to let mortgage is largely assessed on the expected rental income the property can generate.
Most buy to let mortgages are arranged on an interest-only basis, meaning you only pay the interest each month and repay the loan amount at the end of the term.
Buy to let mortgages are available to a wide range of borrowers, including: First-time landlords, Experienced property investors, Limited company investors, Homeowners looking to expand into property.
Most lenders require:
A minimum income (often £20,000–£25,000+), A good credit history, A suitable deposit.
We can assess your situation and help you understand your options.
Buy to let mortgages work differently from standard mortgages in several important ways.
Most landlords choose interest-only mortgages to keep monthly payments lower, although repayment options are also available.
Lenders assess whether the rental income will cover the mortgage payments – usually requiring rent to be around 125–145% of the mortgage interest.
While rental income is key, lenders will also consider your personal income, credit history, and financial stability.
This is why expert advice is so important — every lender has different criteria.
Buy to let mortgages typically require a larger deposit than residential mortgages.
20–25% deposit – Most common requirement
30%+ deposit – May unlock better rates
The size of your deposit affects: Mortgage rates, Monthly payments, Overall profitability.
A larger deposit generally means lower risk for lenders — and better deals for you.
With buy to let mortgages, borrowing is primarily based on rental yield rather than just income.
Lenders use a “stress test” to ensure:
Rental income comfortably covers mortgage payments
The investment remains viable if interest rates rise
In simple terms, the higher the rental income relative to the mortgage, the more you may be able to borrow.
If you’re new to property investment, getting started can feel daunting – but with the right advice, it doesn’t have to be.
We regularly help first-time landlords:
Understand lender requirements
Assess rental income potential
Choose suitable mortgage products
Navigate the full application process
Our goal is to help you enter the property market with confidence and clarity.
Some investors choose to purchase property through a limited company structure.
This can offer potential tax advantages, but also comes with different mortgage criteria and considerations.
We can guide you through:
Limited company mortgage options
Lender requirements
Whether this structure suits your goals
Buy to let mortgages can be more complex than residential mortgages, with stricter criteria and more variables to consider.
At Yellow Financial Services, we:
Compare mortgages from over 50 lenders
Understand complex landlord requirements
Provide tailored advice based on your goals
Handle the entire application process
Help you avoid costly mistakes
We do the hard work so you can focus on your investment.
Whether you’re starting your journey as a landlord or expanding your property portfolio, expert advice can make all the difference.
At Yellow Financial Services, we provide clear, personalised buy to let mortgage advice to help you invest with confidence.
Book your initial fee free consultation today.
Your details will only be used to answer your enquiry.
The internet is not a secure medium and the privacy of your data cannot be guaranteed.
If you’re investing in property in Boston or the surrounding areas, local knowledge can give you a real advantage.
We understand: Local rental demand and tenant trends, Property types that perform well, Pricing and yield opportunities in Boston.
In our experience, working with a local mortgage broker helps investors make more informed decisions and identify better opportunities.
No, buy to let mortgages are specifically for rental properties. Living in one would breach your mortgage terms.
Most lenders require at least 20–25%, although this can vary.
Typically, rental income must cover 125–145% of the mortgage interest payments.
Most are interest-only, but repayment options are available.
It’s possible, but more challenging. Some lenders prefer applicants who already own a residential property.
