This project is to achieve a financial application for determine whether a loan for a home purchase is authorized or not by a bank and to calculate the monthly payments relating to the repayment of the loan. The agreement of the bank to authorize the borrowing depends on: o the price of land to be acquired. o the capital available to the client. o the age of the client. o monthly income of the customer. o the number of years of repayment (10 to 30 years).