Interest only mortgages are widely available on buy-to-let (BTL) mortgages, but they are also an option for some residential buyers. It can be harder to get approval as government regulation has required lender criteria to be tighter. The lenders that offer these will require you to have sufficient equity in the property and an acceptable repayment plan in place. It’s important to stress that interest only mortgages are not right for everyone so it’s vital to speak with an adviser to see if they are suitable for you.