A repayment mortgage payment contains interest and principal and is designed to clear the modeled balance by the end of the term. The interest-only figure covers interest at the entered rate but leaves the original principal to be repaid through a credible separate plan. MoneyHelper notes that most mortgages offered are repayment mortgages and that interest-only borrowing needs a repayment strategy.
A lower monthly payment from a longer term often means more total interest. A bigger deposit reduces the loan and may affect available rates, but this page does not predict lender loan-to-value bands. Stress-test a higher rate, particularly after an introductory deal. Compare the annual percentage rate of charge, fees, portability, overpayment terms and reversion rate, and seek regulated advice when needed.
The payment is an annuity calculation. Early payments contain more interest because the outstanding balance is larger; later payments contain more principal, even though the total repayment stays level in this simplified model. The separate interest-only amount is based on the original loan and is shown for comparison, not added to the repayment figure.
Optional totals multiply current annual costs across every year without inflation, cancellation or coverage changes. That can be useful for a consistent scenario but is unlikely to forecast decades precisely. Use present-day budgeting inputs and update them when comparing options. Buildings insurance may be required by a lender, while life or payment-protection products are separate choices.