What Exactly is the Purpose of Interest?

Lender’s Vantage Point
What role does interest play in the mortgage loan process, you ask? Well, there would be little incentive for lenders to loan money without the lure of generating a profit for their efforts. Plus, the addition of interest is a well accepted practice for it offers lenders recompense for not only the usage of their money but also protection against inflation. Hence, lenders are ensured coverage for the interest they would have earned on their funds, as well as, the period for which they were unable to spend their money.

Interest also compensates lenders for the risks they take. One risk is that nobody knows for certain how much prices will go up during the time that the borrower has the lender’s money. Other risks are that the borrower won’t repay the loan fully, on time, or at all

In cases of lending institutions, interest helps to defray expenses incurred pertaining to business overhead, operational costs, processing fees, and profit margins required to stay competitive.

Borrower’s Vantage Point

Consumers will pay for the right to borrow money for several reasons: 1) immediacy of funds availability 2) access to greater amounts than they themselves are in possession. 3)
ability to fund educational pursuits which may in turn yield sizable financial rewards. 4) incentivized by the tax deduction benefit aligned with borrowing money i.e. the interest accrued on mortgages is tax-free. 5) investment and business growth possibilities that accompany borrowing significant funds

Banks are willing to pay interest on their customers’ deposits because they can lend the funds at higher interest rates and make a profit

Depends on how you look at it: Interest or Income?
In what situations is interest looked upon as income? For those persons who oblige to forego the short-term use of their money in favor of earning interest, they are, in turn, generating what is commonly referred to as interest income. Money sitting in the bank or invested in CDs, though unable to be used in the present, earns interest income which persons can use in the future.

On the side of the fence, interest is a fee assessed to those who borrow money. Consumers pay money for the usage of funds. Should they not pay their credit card in full each month, they will be assessed an additional fee based upon the annual percentage rate to which they agreed.

Interest uses include: channeling funds to outlets where they may experience the greatest increases or signaling pockets in the economy where they make the biggest impact.

In essence, interest is a way of identifying the cost to suspend one’s ability to spend money. Economists frequently explain this practice as "opportunity cost" with respect to what one foregoes in favor of selecting a different route. to refer to what you give up by choosing a certain course of action. Hence, it is up to the lender to weigh the costs of giving up usage of his | her money in lure of the moneys that be made via interest earned.