Equal Installment vs Equal Principal: What’s the Difference?
Equal installment and equal principal are the two most common mortgage repayment methods. This guide compares their payment structure, interest differences and which one suits you.
Equal installment: the monthly payment stays fixed, with early payments going mostly to interest and less to principal. The upside is predictable payments that are easy to budget; the downside is usually higher total interest.
Equal principal: the principal portion is fixed each month while interest is charged on the remaining balance, so the payment decreases month by month. Early payments are higher but it gets easier over time; total interest is usually lower than equal installment.
How to choose: if your income is stable and you want predictable payments, pick equal installment; if you earn more now, want to save total interest and can handle the early pressure, pick equal principal. This tool compares both side by side so you can decide with real numbers.