PPMT

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

Syntax

PPMT(rate,per,nper,pv,fv,type)

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 equal to

If payments are due

0 or omitted

At the end of the period

1

At the beginning of the period


Remarks

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.

Examples

The following formula returns the principal payment for the first month of a two-year $2,000 loan at 10 percent annual interest:

PPMT(10%/12, 1, 24, 2000) equals -$75.62

The following function returns the principal payment for the last year of a 10-year $200,000 loan at 8 percent annual interest:

PPMT(8%, 10, 10, 200000) equals -$27,598.05