How many Buy to Let properties can you own?
There is no fixed legal limit on the number of Buy to Let properties you can own. However, most lenders impose limits on how much exposure they are willing to have with a single borrower.
- Some lenders restrict borrowers to one Buy to Let property.
- Others may allow three or more, depending on income and experience.
- Portfolio landlords may need to spread borrowing across multiple lenders.
If you are unsure which lenders are still available to you as your portfolio grows, our mortgage advisers can assess your position and identify the most suitable next lender.
How much can you borrow?
Buy to Let affordability is primarily based on rental income rather than personal income.
Most lenders require the expected rental income to cover the mortgage payment by at least 125%. Some lenders apply higher stress tests depending on interest rates and tax position.
To evidence rental income, lenders often request a letter from a registered letting agent confirming the expected monthly rent for the property.
What Buy to Let mortgage products are available?
Repayment or interest-only mortgages
With a repayment mortgage, your monthly payments gradually reduce the balance, meaning you will own the property outright at the end of the term — assuming all payments are maintained.
Interest-only mortgages require you to pay only the interest each month. Many landlords prefer this option as it keeps monthly costs lower and allows flexibility during void periods.
It’s important to remember that interest-only mortgages do not repay the capital. A clear repayment strategy should always be in place.
Fixed-rate Buy to Let mortgages
Fixed-rate Buy to Let deals are commonly available over 2, 3, or 5 years. These provide payment certainty but often include early repayment charges if you exit the deal early.
At the end of the fixed period, the mortgage usually reverts to the lender’s standard variable rate, at which point many landlords choose to remortgage.
Variable and tracker mortgages
Variable products typically track the Bank of England base rate or sit at a margin above a lender’s standard variable rate. Payments can rise or fall over time and are often chosen by landlords who value flexibility.
What deposit do I need for Buy to Let?
Most Buy to Let mortgages require a minimum deposit of 25% of the property value. Some specialist lenders may require larger deposits depending on the property type, rental yield, or borrower profile.
Are Buy to Let mortgages regulated?
Most Buy to Let mortgages are not regulated by the Financial Conduct Authority. However, if you intend to let the property to a close family member, the mortgage may be classed as a regulated Buy to Let.
This distinction can affect lender choice and available products, so it’s important to clarify your intentions early.
What are the tax implications?
Buy to Let tax rules have changed significantly in recent years. Mortgage interest relief is restricted, and landlords may be liable for income tax, capital gains tax, and additional stamp duty.
Tax treatment varies based on personal circumstances, ownership structure, and future plans. For this reason, professional tax advice should always be sought alongside mortgage advice.
Is Buy to Let a good investment?
Buy to Let property can be profitable if approached carefully, but it is not risk-free. Landlords must be prepared for void periods, maintenance costs, and changes in regulation or taxation.
As with any investment, you should never commit funds that you cannot afford to lose. Proper planning, realistic expectations, and expert advice can significantly improve the likelihood of long-term success.
Need Buy to Let advice?
Whether you’re buying your first Buy to Let or managing a growing portfolio, our mortgage advisers can help you understand your options and source the most suitable lender.
Our advice is free, with no obligation.