What is a guarantor mortgage and how does it work?

Full answer

A guarantor mortgage is a home loan where a third party - typically a parent or close relative - takes on legal responsibility for the debt if the main borrower defaults. It helps people who struggle to get a standard mortgage, such as first-time buyers with a small deposit, those with limited or irregular income, or applicants with thin credit histories. The guarantor does not usually own the property or live in it, but they are committing their own finances as backup. Lenders structure these in two common ways. With a savings-based deal, the guarantor deposits a sum (often around 10% of the purchase price) into a linked account held as security, sometimes earning interest, released after a set period or once enough equity builds up. With a property-based deal, the lender takes a legal charge over the guarantor's own home, which is at risk if repayments are missed. Either route lets the borrower potentially access a higher loan or buy with little or no deposit. The borrower still makes the monthly payments and is assessed on affordability in the normal way. The risk sits heavily with the guarantor: missed payments can damage their credit file, erode their secured savings, or in the worst case put their home in jeopardy. Guarantors should take independent legal advice before signing. These products are less common than they once were, partly replaced by joint borrower sole proprietor mortgages and family deposit schemes that achieve similar aims. Affordability still hinges on the borrower's income, the interest rate, and the term. To estimate monthly repayments and how much could be borrowed at different rates and terms, use the mortgage calculator. Remember the deposit size and the loan-to-value ratio drive the interest rate you are offered, so a larger guaranteed deposit usually means a cheaper rate.

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