APR versus the note rate

The note rate sets the payment and the balance. The APR is used only to estimate fees you pay up front.

Two rates, two jobs

The interest rate on the form is the note rate. Monthly principal and interest, the chart, the yearly table, and the PMI dates all use that rate.

APR is the annual percentage rate from the loan estimate. When APR is higher than the note rate, the calculator treats the gap as a prepaid finance charge: money paid at the start, not interest added each month.

When they match

If you type the same number for rate and APR, the fee estimate is zero. The screen says the estimate shows no extra lender fees. That is expected. It does not mean the loan is free of tax or insurance.

A tiny gap that works out to less than a dollar is also treated as no fee, so rounding noise does not invent a charge.

Do not put APR in the payment

Using APR as if it were the note rate would overstate the monthly principal and interest and would shift every date on the schedule. Keep the contract rate in the rate field and the disclosed APR in the APR field.

The same split is used on the car calculator. Housing costs around the loan are separate from this fee estimate.

This explains how WiseCalculator treats the numbers you type. It is not a lender’s offer and it is not advice for your loan.