Simple interest is easy to understand, predictable, and transparent for borrowers and investors. It’s a straightforward way to calculate your earnings on a savings account or your payments on a loan. When borrowing money, the lender charges interest on the loan. When repaying the loan, the borrower must pay back the initial principal amount along with the interest accrued. The interest is calculated as a percentage of the initial principal, and it does not compound on any previously earned interest. With the simple interest calculator, only the interest is paid.

Get the magic of compounding working for you by investing regularly and increasing the frequency of your loan repayments. Compounding can work in your favor when it comes to your investments but it can also work for you when you’re making loan repayments. Making half your mortgage payment twice a month rather than the full payment once a month will end up cutting down your amortization period and saving you a substantial amount of interest. An investment that has a 6% annual rate of return will double in 12 years (72 ÷ 6%). An investment with an 8% annual rate of return will double in nine years (72 ÷ 8%). Money isn’t “free” but has a cost in terms of interest payable so it follows that a dollar today is worth more than a dollar in the future.

## The simple interest formula

Loans that use a simple interest structure often result in lower costs for borrowers. That’s because interest isn’t added to the principal balance and then recalculated. Instead it’s calculated upfront on the initial borrowing amount and amortized — or split into recurring payments — throughout the life of the loan. The interest rate, which may also be called your rate of return. However, savings vehicles like CDs, which have a fixed interest rate, will not change over time. Simple interest is an easy way to look at the charge you’ll pay for borrowing.

- (Note that you can also treat this $1,000 as the initial value of your loan with simple interest).
- The interest rate is calculated against the principal amount and that amount never changes, as long as you make payments on time.
- CAGR is used extensively to calculate returns over periods for stocks, mutual funds, and investment portfolios.
- Simple interest is the interest earned on a principal amount, calculated at a specified interest rate and over a certain period.
- The higher the number, the greater the effect of compounding.
- Most bank deposit accounts, mortgages, credit cards, and some lines of credit tend to use compound interest.

For example, if a lender offers a $1 million loan with a 5.0% annual interest rate and 2-year maturity, the simple interest is $200,000. In practice, simple interest rate pricing is not particularly common. However, financial instruments with simple interest tend to be those with shorter maturities, where the effects of compounding are negligible.

## Solved Examples of Simple Interest

Lowering the interest rate, shortening the loan term, or prepaying principal also has a compounding effect. For example, let’s say that a student obtains a simple interest loan to pay for one year of college tuition. As a reminder, simple interest paid or received over a certain period is a fixed percentage of the principal amount that was borrowed or lent. Simple interest is used to calculate growth or decay, in terms of money. For example, you can use it to calculate the interest charges based on a loan amount or it can be used to calculate the amount of interest you can earn if you invest your money. For example, calculate the interest earned on \$3,000 with a simple interest rate of 5\% over 2 years.

## Simple Interest Calculator – Excel Model Template

You’ll pay less over time with simple interest if you have a loan. CAGR is used extensively to calculate returns over periods for stocks, mutual funds, and investment portfolios. It’s also used to ascertain whether a mutual fund manager or portfolio manager has exceeded the market’s rate of return over a period. A fund manager has underperformed the market if a market index has provided total returns of 10% over five years but the manager has only generated annual returns of 9% over the same period. Compound Interest equals the total amount of principal and interest in the future, or future value, less the principal amount at present, referred to as present value (PV). PV is the current worth of a future sum of money or stream of cash flows given a specified rate of return.

The longer the time period, the higher the total simple interest amount, as the interest accumulates linearly over time. Yes, the formula for simple interest is consistent for all types of loans and investments. Simple interest is of two types ordinary simple interest and exact simple interest. In ordinary simple interest, a year is considered of 365 days while calculating the interest while in exact simple interest, a year is considered 366 days if it is a leap year. Both methods use the same formula to calculate simple interest.

Home loans take a long time to repay, so the interest added by the lender is usually compound interest. If you hadn’t converted here, you would have found the interest for 4 years, which would be much higher. So, always make sure to check that the time is in years before applying the formula. In this example, the time given was in years, just as in bank reconciliation adjustments in xero the formula. Let’s use another example to see how this might be different.

## Everything You Need To Master Financial Modeling

The more frequently interest is compounded—quarterly, monthly, or even daily—the greater the total amount of payments in the long run. For a short-term personal loan, a personal loan calculator can be a great way to determine in advance an interest rate that’s within your means. Typically expressed as a percentage, it amounts to a fee or charge that the borrower pays the lender for the financed sum. This type of interest usually applies to automobile loans or short-term loans, although some mortgages use this calculation method. A loan is an amount that a person borrows from a bank or a financial authority to fulfil their needs. Loan examples include home loan, car loan, education loan, and personal loan.

In finance, interest rate purchased transportation is defined as the amount that is charged by a lender to a borrower for the use of assets. Thus, we can say that for the borrower, the interest rate is the cost of debt, and for the lender, it is the rate of return. Interest compounding periods can be daily, monthly, quarterly, or annually.

Some personal loans and simpler consumer products use simple interest. Most bank deposit accounts, mortgages, credit cards, and some lines of credit tend to use compound interest. Simple interest is a type of interest that is calculated only on the initial amount borrowed/invested, without considering any interest charged/earned in previous periods. It is a fixed percentage of the principal amount that is charged or earned over a specific period of time. In this lesson, you will be introduced to the concept of borrowing money and the simple interest that is derived from borrowing.

Compound interest on some types of investments such as savings accounts or bonds is considered income. Simple interest is easy to understand and results in predictable payments on loans. You can get the best of both worlds — compound interest plus liquidity — in a high-yield savings account. Compound interest combines the initial amount loaned with the interest that’s been accumulated from previous periods. Essentially, your interest earns interest on itself, meaning it snowballs over time. Compound interest can be incredibly useful in generating savings and building wealth, which is why it’s best to take advantage of compound interest when saving and investing where possible.