Ask whether the rate is fixed, tracker or variable, how long it lasts, and what rate you would move to afterwards. Check the overall cost, including the representative APRC, arrangement fees, valuation charges, legal costs and any fee for paying the mortgage off early. Ask how changes in the Bank of England base rate could affect your payments, and whether the lender’s affordability assessment includes possible rate rises. Compare the mortgage illustration from each FCA-authorised lender or broker, and consider taking regulated mortgage advice if you are unsure.