This function provides the interest payment for an investment with a constant payment and interest rate over a specified term.
Syntax:
=IPMT(rate, per, nper, pv, [fv], [type])
Parameter list:
Example :
In this example, we use the formula =IPMT(B3/12,B6,B4*12,B2) to calculate the interest amount for the first month in cell B9. We calculate the monthly rate by dividing it by 12 since we pay monthly, and the second parameter is the month number, the first month, from the entire period of 36 months. The third element is the total period, which is calculated by multiplying the month by the years to get 36, and the fourth parameter is the loan amount.
The second month is computed in cell B10 in the same way. And in cell B11, we’re calculating the interest due in the previous year (3rd year); because we’re using an annual interest rate, there’s no need to divide by 12, and per and Nper are the same because we’re looking for the interest for the previous year, which is 3, so per will be 3 and Nper will be 3 because we’re only paying three times during the loan period.
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