In: Finance
start-up entrepreneur wants to determine how much he can borrow in the form of a fixed-rate 20-year loan from bank. The loan for 20 years carries a fixed interest rate of 9.00%. He estimates that he can pay a maximum of $25,000 annual repayment (interest plus principal).
How large a loan can he afford, assuming he makes steady repayments of $25,000 per year for 20 years? How much total interest will be paid over the 20-year life of the mortgage? How much interest will be paid during the first year of the mortgage? How much principal will be repaid in the first year? How much of the final $25,000 payment at the end of 20 years will be interest and how much will be principal?
We will have to calculate the maximum loan amount by using the PV function | ||||||
Amount of loan = Annual payment*(1-(1+r)^-n)/r | ||||||
Amount of loan = 25000*(1-(1+0.09)^-20)/0.09 | ||||||
Amount of loan = 25000*(1-(1.09)^-20)/0.09 | ||||||
Amount of loan = 25000*9.128546 | ||||||
Amount of loan | $228,213.64 | |||||
The loan that can be taken is $228,213.64 | ||||||
Total payment on loan | 25000*20 | $500,000.00 | ||||
Loan amount | $228,213.64 | |||||
Total interest paid on loan | $271,786.36 | |||||
The total interest paid on loan is the difference between the total payment made over 20 years and the loan amount | ||||||
Interest payment in first year = Loan amount*Interest rate | ||||||
Interest payment in first year = 228213.64*9% | ||||||
Interest payment in first year | $20,539.23 | |||||
Principal repaid in first year = Annual payment - Interest payable in first year | ||||||
Principal repaid in first year = 25000 - 20539.23 | ||||||
Principal repaid in first year | $4,460.77 | |||||
We will have to calculate the balance of loan at end of 19 years so as to calculate interest and principal repayment | ||||||
Loan balance at end of 19 years | 25000*(1-(1.09^-1)/0.09 | |||||
Loan balance at end of 19 years | 25000*0.917431 | |||||
Loan balance at end of 19 years | 22935.78 | |||||
Interest payable in year 20 | 22935.78*9% | |||||
Interest payable in year 20 | $2,064.22 | |||||
Principal repayment in year 20 | 25000-2064.22 | |||||
Principal repayment in year 20 | 22935.78 | |||||