You are planning to buy a house today. The house costs $400000. You have $57000 in cash that you can use as a down payment on the house, but you need to borrow the rest of the purchase price. The bank is offering a 30 -year mortgage that requires annual payments and has an EAR of 8% per year. What will be your annual mortgage payment?
These can be of two types:
· Ordinary Annuity – payment is made at the end of each period.
· Annuity Due – Payment is made at the beginning of each period
The present value of an Ordinary Annuity can be calculated as:
Where C denotes the fixed installment
r denotes the rate of interest, 8% annually
n denotes the number of installments or 30
The PV of the annuity is the amount of loan borrowed = $ 400,000 - $ 57,000 = $ 343,000
Substituting the above values, calculate C:
Thus, the annual mortgage payment will be $ 30,467.81
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