Interest = Interest Rate * Principal * Time
If a homebuyer purchases a $200,000 house at 6% over 30 years, calculation would be:
Interest = 6% * 200,000 * 30
Interest = $360,000
Interest + Mortgage = $560,000
Monthly Payment = $560,000 / 360 months = $1,555.00 (not including tax or insurance)
If the purchaser puts 10% down, then the bank assumes 90% of the loan.
10% - Owned by Buyer 10% of Mortgage
$20,000 $56,000
90% - Owned by Bank 90% of Mortgage
$180,000 $504,000
Typically the first mortgage payment is 99% interest and the last mortgage payment is 99% principal. All payments in between are percentages between the two.
If home values decrease and the value of the home loan becomes less than $180,000 (let’s say $170,000), the banks begin to lose money on the “interest” portion of the loan ($360,000 paid over the course of 30 years) and the interest now becomes $342,000 because of the loss in the value of the home.
If the bank wanted to sell the loan because it was losing money, the bank had difficulty because the market was not interested in purchasing a loan that was not worth its own value. This in turn “froze” the mortgage industry because a lot of homes were experiencing a loss in value at the same time.
Although most people continued to make payments, the banks were worried that they would eventually take a loss because they would not be able to sell the bad debt or loans that weren’t worth their value. This led to the mortgage bailout plan that the government set in place to buy the loans that weren’t worth their value and let the people pay the money back with their tax dollars over the next 30-50 years. The bailout plan prevented the banks from losing a portion of the money they were making on the interest.
Another option rather than putting the government and the people into another $700 billion of debt could have been to adjust the principal to the current value of the house ($170,000 instead of $180,000) so that banks continue to make a substantial amount of money from the interest, the loan would be worth its value so other banks would be willing to buy the loan AND the homeowners would benefit because they would acquire a higher percentage of the pay off on the principal. This is what that might look like:
15% - Owned by Buyer 15% of Mortgage
$30,000 $84,000
85% - Owned by Bank 85% of Mortgage
$170,000 $476,000
The difference between the original mortgage $504,000 and the revised mortgage $476,000 is $28,000 over the course of 30 years. If banks had to take that much of a loss on each home loan they serviced, they would have lost quite a bit of money. However, consider the fact that banks are making almost 2.5 times the amount of money that the houses are worth and then the $28,000 looks like a very small amount in comparison. Knowing that the bailout plan passed is a little bit more frustrating now given a better understanding of the reasons it was passed.
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