How Mortgage Payments Work
A mortgage payment is not a flat fee — it is a mix of principal (paying down what you borrowed) and interest (the cost of borrowing it), and that mix shifts every month over the life of the loan.
Principal vs. interest
In the early years of a mortgage, most of each payment goes toward interest, with only a small amount reducing the principal balance. As the balance shrinks, less interest accrues each month, so a larger share of your fixed payment starts paying down principal instead — this shifting split is called amortization.
What changes your payment
Your monthly payment depends on three inputs: the loan amount, the interest rate, and the loan term (commonly 15 or 30 years). A longer term lowers your monthly payment but increases total interest paid over the life of the loan; a shorter term does the opposite.
Estimate your payment
Enter your home price, down payment, interest rate, and loan term into the mortgage calculator to see your estimated monthly payment and total interest. It is a good idea to compare a couple of term lengths side by side before deciding what fits your budget.