Buy to Let Mortgages
Who is eligible for a buy-to-let mortgage?
- Your rental income exceeds the mortgage
- You have a minimum of 25% capital invested in the property
- You have a good credit score
- Be young enough to have paid off your mortgage by age 70 – 75
- You may struggle to get a BTL mortgage if you don't own your own residential home
How do buy to let mortgages differ to residential mortgages?
- Mortgage Interest rates are normally higher
- Mortgage product fees and mortgage valuations are normally higher
- You have to invest a minimum of a 25% deposit
- They are normally interest-only; you don't have to pay off any of the principle each month but have to pay this in its entirety at the end of the mortgage term
- You don't get as high a level of protection as a residential mortgage because you are viewed as a more sophisticated lender. Most products are not regulated by the Financial Conduct Authority, unless you're letting to a close family member, in which case the FCA does regulate and there are stricter affordability rules ("consumer buy to let mortgage").
How much can you borrow for a buy to let mortgage?
- Deposit - You will need a minimum of 25% of the purchase price. You are likely to achieve a better mortgage interest rates if you can invest more of a deposit and reduce the loan to value.
- Rental Income - The maximum you can borrow depends on the projected rental income you'll look to receive. Most lenders will require this income to be 25-30% higher than your mortgage repayments.
New assessments stress test to see if you could settle the mortgage repayments if the base rate increased by 4 to 5%.
You should therefore find out what rent you're likely to get by examining any available data of rental rates for the area you're buying in – local press, letting agents and online.
If you can't prove the rental income via an existing tenant then the mortgage lender will require you to provide evidence from a local letting agent, normally regulated, to confirm what the achievable monthly rent would be.
Who can you get a buy to let mortgage from?
- You own the property and rent rooms out to your son and his friends.
- You live in the property and rent spare rooms out to lodgers.

Andrew started his career in 2000 working within conveyancing solicitor firms and grew hands-on knowledge of a wide variety of conveyancing challenges and solutions. After helping in excess of 50,000 clients in his career, he uses all this experience within his article writing for SAM, mainstream media and his self published book How to Buy a House Without Killing Anyone.

Caragh is an excellent writer and copy editor of books, news articles and editorials. She has written extensively for SAM for a variety of conveyancing, survey, property law and mortgage-related articles.
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