To determine the monthly payment you need to know the principal balance, monthly interest rate and the number of monthly periods.
Principal Balance = 156,000 (195,000 - (195,000 x 20%) = 195,000 -39,000(down payment).
Monthly Interest= 4%/12 months= .33% or .0033333
Number of monthly periods = 180 (15 years x 12 months)
You can calculate using a financial calculator where:
N= 180 (Number of Months)
I= .3333333 (Monthly Interest)
PV= 156,000 (Present Value)
Then you solve for PMT = Payment
Or you can solve using Excel using the PMT function (formula)
Use the same parameters:
Rate = .0033333
Nper= 180
PV= 156,000
or you can calculate manually using the following formula:
To use this formula, you need to calculate the numerator and denominator separately
M= Monthly Payment
P=Principal = 156,000
I= Interest Rate = .003333
N= Number of Periods = 180
M= 156000 * .003333 * (1+.003333)^180/ (1+.003333)^180 -1
M= 156000 *003333* 1.8203/ 1.82030
M= 946.5568/.8203
M=$1153.91
The monthly payment on a mortgage of $195,000 with a 20% downpayment at 4% for 15 years is $1153.91.