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Returns the payment on the principal for a given period for an investment based on periodic, constant payments and a constant interest rate.



For a more complete description of the arguments in PPMT, see PV.

Rate     is the interest rate per period.

Per     specifies the period and must be in the range 1 to nper.

Nper     is the total number of payment periods in an annuity.

Pv     is the present value — the total amount that a series of future payments is worth now.

Fv     is the future value, or a cash balance you want to attain after the last payment is made. If fv is omitted, it is assumed to be 0 (zero), that is, the future value of a loan is 0.

Type     is the number 0 or 1 and indicates when payments are due.

Set type to

If payments are due

0 or omitted

At the end of the period


At the beginning of the period


Make sure that you are consistent about the units you use for specifying rate and nper. If you make monthly payments on a four-year loan at 12 percent annual interest, use 12%/12 for rate and 4*12 for nper. If you make annual payments on the same loan, use 12% for rate and 4 for nper.

Example 1

In the following example, the interest rate is divided by 12 to get a monthly rate. The years the money is paid out is multiplied by 12 to get the number of payments.





Description (Result)




=PPMT([Rate]/12, 1, [Nper]*12, [PV])

Payment on principle for the first month of loan (-75.62)

Example 2





Description (Result)




=PPMT([Rate], [Per], 10, [PV])

Principal payment for the last year of the loan with the specified arguments (-27,598.05)

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