With a guarantor mortgage, the loan is generally calculated on the guarantors’ income as well as the applicants income. This could mean that the mortgage may be more than the standard calculation used for assessing the applicant for a run-of-the-mill mortgage. The applicant must still prove that they can meet the repayments, however the guarantor may have to cover all or part of the mortgage debt which many lenders generally require as standard. A guarantor will have to prove their income and outgoings, along with the ability to meet the repayments in the event of the homeowner not keeping up with the monthly repayments. The guarantor does not have to be a family member but they do have to agree to the terms as set out by the lender.