Monthly loan amount = [loan principal × monthly interest rate ×( 1+ monthly interest rate )× repayment months ]=[( 1+ monthly interest rate )× repayment months]
Monthly interest payable = loan principal × monthly interest rate ×[( 1+ monthly interest rate) repayment months -( 1+ monthly interest rate) (repayment month serial number-1)] ÷ [(1+monthly interest rate) repayment months -650.
Monthly repayment principal = loan principal × monthly interest rate ×( 1+ monthly interest rate) ÷ (repayment month serial number-1)÷[( 1+ monthly interest rate) repayment months-1]
Total interest = repayment months × monthly repayment amount-loan principal
2, the average capital repayment method:
Monthly payment = (loan principal ÷ repayment months)+(loan principal-accumulated repaid principal) × monthly interest rate.
Monthly repayable principal = loan principal ÷ repayment months
Monthly interest payable = residual principal × monthly interest rate = (loan principal-accumulated principal repayment) × monthly interest rate
Monthly decreasing amount = monthly repayable principal × monthly interest rate = loan principal ÷ repayment months × monthly interest rate.
Total interest = [(total loan ÷ repayment months+total loan × monthly interest rate)+total loan ÷ repayment months ×( 1+ monthly interest rate) ]> 2× repayment months-total loan.
How to calculate the monthly loan for buying a house?
1. The total house price required cannot exceed the actual repayment capacity. Although it will cost tomorrow to buy a house with a loan, the overdraft limit must be controlled within the effective solvency. The total purchase price of ordinary property buyers shall not exceed 6 times of the annual household income, and the monthly repayment shall not exceed 60% of the monthly income.
2. The down payment is not as little as possible. The down payment of the Buyer shall not be less than 20% of the total house price. The larger the loan amount, the less the down payment. If you choose a small down payment, you can use other funds for other purposes. Therefore, if the property buyers have extra deposits and there are other better ways, they can choose to pay less down payment, because others may be greater than the loan interest.
3. The repayment period should be appropriate. The shorter the loan term, the less the monthly repayment. You should choose the repayment period according to your future income and expenditure and life stage. With the same loan amount, the monthly repayment amount in ten years is more than that in twenty years, but the total repayment amount is less than that in twenty years.
What is the most suitable monthly payment?
Note: Repayment ability refers to the maximum loan amount that you can apply to the bank with such repayment ability. But besides knowing the monthly repayment amount, you also need to know the repayment ability of these three aspects, and finally determine the appropriate monthly repayment amount through comprehensive evaluation.
1, calculate the down payment ability: when calculating your down payment ability, you must add the decoration cost of the house, because the rough house can't live.
2. Calculate the monthly supply capacity: when buying a house with a loan, the monthly supply should be controlled at about 30% of the monthly income, because not only the factors of rising loan interest rate, but also the factors of decreasing income should be considered. In addition, the loan to buy a house, it is best to set aside a year's mortgage.
3. Calculate the ability to raise a house: the cost of raising a house includes property fee, heating fee and 24-hour hot water fee. If the house you buy is far from your work place, you should also consider the transportation fee.