Check how much you could save with our Mortgage Overpayment Calculator. Making regular overpayments can significantly reduce your interest costs and help you pay off your mortgage sooner. Whilst most lenders allow overpayments of up to 10% of your mortgage balance annually, it’s essential to check your specific terms, as exceeding your allowance may result in penalties. Even small monthly overpayments can lead to substantial savings over the life of your mortgage, making it well worth considering as part of your financial strategy.