Finance 101: Compounding Interest - City Girl Savings (2024)

Interest is a funny thing. It seems complicated, and it can be, but a financially savvy lady needs to understand how interest works. This week’s Finance 101 topic is going to cover the basics of interest and how it can work in your favor.

There are some interest rates that can’t be controlled, and there are some that can. So ladies, put your knowledge caps on and get ready to understand interest!

Compounding Interest 101

Before we get into the aspects of paying and earning interest, understanding common interest terminology and concepts is a great starting point.

Market Interest Rates: The market determines interest rates for investments, money market accounts, bonds, and bank accounts. “The market” refers to the specific industry field of the investment, or the economy as a whole.

Inflation: Measured as an annual percentage, inflation is the gradual increase in the general level of prices for goods and services. The value of the dollar is based on its purchasing power.

As inflation rises, each dollar you have buys less of a good or service.

Investopedia explains this process perfectly: “When inflation goes up, there is a decline in the purchasing power of money. For example, if the inflation rate is 2% annually, then theoretically a $1 pack of gum will cost $1.02 in a year. After inflation, your dollar can’t buy the same goods it could beforehand.”

Compounding Interest: Interest earned is generally termed as APY, which is the annual percentage rate. When an interest rate is quoted with APY, your money compounds. This means that you earn interest on your initial money, plus previous interest payments.

This also means that you pay interest on your initial loan, plus additional interest payments already added.

Paying Interest

Interest is the price you pay to borrow someone’s money. You pay interest when you are taking out a loan, purchasing items on credit, financing a car or house, or using any form of money lending.

On top of paying the original amount of the loan or credit (usually called principal), you will pay a little (or a lot) extra due to interest. The amount of interest you actually pay is based on your interest rate.

It is not uncommon for credit cards to have interest rates ranging from 10%-29%. In this case, your credit historyusually determines the rate.

The interest rate on a house or car is calculated slightly differently. While your credit history does play a role, economic conditions in the market usually determine the lowest interest rate.

The interest rates for home loans usually range from 2.5%-10%. Auto loan interest rates typically range from 1.65%-10%. The length of the loan, as well as the willingness of the lender to make loans, can also determine the interest rate.

To ensure the lowest interest rate possible, as designated by the market, you have to have better than fair credit. The higher your credit score, the less risky you appear to the lender.

If your rate is established, then the length of your loan will determine how much interest you will pay. Always go for the lowest term that you can afford. The longer your loan term, the more you will pay in interest, period.

Look at the example below to see how interest can affect you. Let’s say you are purchasing a house. You are financing $200,000 at a 6% interest rate. For mortgages, you usually have 15-year and 30-year term options.

Finance 101: Compounding Interest - City Girl Savings (1)

If you finance the home for 15 years at a 6% interest rate, you will pay a total of $303,788 for the house. If you finance the home for 30 years at a 6% interest rate, you pay a total of $431,676.

That means you are paying more in interest than for the actual house! So while the lower monthly payment seems appealing now, it is really costing you so much more.

Earning Interest

The same rules for paying interest apply to earning interest. When you put your money in a bank savings, checking, CD or other interest bearing account, you are essentially loaning money to the bank.

Banks use your money to make loans. So, to convince you to keep your money in the bank, they offer interest. The market and account type determines the level of interest you earn.

Credit unions offer better rates than common banking institutions like Chase and Wells Fargo, but online savings accounts like American Express Bank and Barclays offer the highest interest rates around.

For more on the account types that earn interest, check out Finance 101: Checking, Savings, and High Yield Interest accounts. Simply letting your money sit in a bank account means you can earn more than you started with.

And yes, interest in these accounts is compounded, so you make money off the original deposit and any interest already earned.

The concept is exactly the same for investments andretirement plans, on a much larger scale. When you invest in a retirement plan through your employer or a brokerage firm, the money you put in is invested in a combination of stocks, bonds, and funds.

The standard rate of return on long term retirement investing is 8%. Notice that we said long term. This means that you may not see 8% returns every month, but over time, and through the ups and downs of the market, you will see an average 8% return on your overall investment.

That 8% return is essentially your compounded interest rate. Look at the table below to see how compounding interest in a retirement plan works to your favor. We are using an interest rate of 8%.

Finance 101: Compounding Interest - City Girl Savings (2)

Just look how longer terms in loans benefit the lender, longer terms in your retirement benefit you. Look at those numbers! If you start contributing $300 a month to your retirement plan at age 25, you will be a millionaire at age $65!

All thanks to the compounding interest! That alone should be your reason for contributing to a 401(k) or IRA!

Related:How Credit Scores Affect Interest Rates

As we mentioned earlier, interest is a funny thing. It can help you tremendously or hurt you tremendously. However, understanding how interest works is the first step in making sure that you don’t get fooled!

What did you think of the ways interest can help or hurt you? Are you inspired to start saving? Share your thoughts with the community by leaving a comment below!

-The CGS Team
Finance 101: Compounding Interest - City Girl Savings (2024)

FAQs

What are two disadvantages of putting your money into savings accounts compared to investing? ›

Despite its perks, saving does have some drawbacks, including:
  • Returns are low, meaning you could earn more by investing (but there's no guarantee you will.)
  • Because returns are low, you may lose purchasing power over time, as inflation eats away at your money.
Apr 19, 2024

How does investing in the stock market differ from putting money in a savings account at a bank? ›

Saving money means storing it safely so that it is available when we need it and it has a low risk of losing value. Investment comes with risk, but also the potential for higher returns. Investing typically often comes with a longer-term horizon, such as for children's college funds or one's retirement.

What is a benefit of an account with interest? ›

An interest-bearing checking account provides the opportunity for the money in your checking to grow allowing you to meet your savings and spending goals at the same time. Often, in order to earn interest, you must put money in an account that may limit your ability to make withdrawals.

Which of the following is an asset that would depreciate over time? ›

Depreciable property includes machines, vehicles, office buildings, buildings you rent out for income (both residential and commercial property), and other equipment, including computers and other technology.

Can I lose money in a high-yield savings account? ›

Losing money in an HYSA is rare, but it can happen.

If you're looking for safe ways to grow your money and protect your savings, a high-yield savings account (HYSA) can be a great option. This type of deposit account is available through many banks and credit unions, particularly online financial institutions.

What's the catch with high interest savings accounts? ›

However, your savings can lose purchasing power over time because of inflation. For example, if your high-yield savings account pays 2 percent and the annual inflation rate is 6 percent, your money has lost 4 percent of its purchasing power.

How much money do I need to invest to make $3,000 a month? ›

Imagine you wish to amass $3000 monthly from your investments, amounting to $36,000 annually. If you park your funds in a savings account offering a 2% annual interest rate, you'd need to inject roughly $1.8 million into the account.

Should I do stock market or high-yield savings account? ›

With a high-yield savings account, you can save for short-term goals and emergency expenses, both of which can benefit from the lack of risk associated with bank accounts. But if you want to build wealth for the future, investing has the potential to give you better returns in the long run.

How much should a 30 year old have saved? ›

If you're looking for a ballpark figure, Taylor Kovar, certified financial planner and CEO of Kovar Wealth Management says, “By age 30, a good rule of thumb is to aim to have saved the equivalent of your annual salary. Let's say you're earning $50,000 a year. By 30, it would be beneficial to have $50,000 saved.

How much money can I keep in my bank account without tax? ›

Banks must report cash deposits totaling more than $10,000. Business owners are also responsible for reporting large cash payments of more than $10,000 to the IRS.

Which bank gives 7% interest on savings accounts? ›

Which Bank Gives 7% Interest Rate? Currently, no banks are offering 7% interest on savings accounts, but some do offer a 7% APY on other products. For example, OnPath Federal Credit Union currently offers a 7% APY on average daily checking account balances up to and under $10,000.

What should you do before you withdraw money from the ATM? ›

Before you approach the ATM, have your card ready, know your code and if anything such as a deposit slip needs to be filled out, have it completed.

What assets don't depreciate? ›

Examples of non-depreciable assets are: Land. Current assets such as cash in hand, receivables. Investments such as stocks and bonds.

What is the only asset that does not depreciate through time? ›

Land is not depreciated, since it has an unlimited useful life.

What happens if you don't depreciate an asset? ›

You will owe 25 percent of what you could have deducted as a “depreciation recapture” when you sell the property. That amount is due whether you take a deduction or not. If you haven't claimed depreciation on your tax return, you can amend your recent tax return to claim your depreciation benefit.

What are two disadvantages of savings accounts? ›

There are also a few potential downsides to savings accounts.
  • Interest Rates Can Vary. ...
  • May Have Minimum Balance Requirements. ...
  • May Charge Fees. ...
  • Interest Is Taxable.
Sep 11, 2023

What are two disadvantages of saving money? ›

Among the disadvantages of savings accounts:
  • Interest rates are variable, not fixed.
  • Inflation might erode the value of your savings.
  • Some financial institutions require a minimum balance to earn the highest interest rate.
  • Some accounts might charge fees.
Jun 27, 2023

What is a disadvantage of putting money in a savings account? ›

Low return – although consumers can earn interest, they offer relatively lower rates. Taxes – there are no tax benefits for putting money into a savings account. In fact, if a consumer accumulates a big enough balance, they will pay taxes on the interest they earn each year.

What are 3 disadvantages of saving? ›

The disadvantages of using personal savings:
  • You're limited to what you can afford: your savings may only get you so far.
  • It's risky to spend all your savings: you might need your savings for a personal emergency.
  • Your responsibility for success: having more people behind your business could lead to more success.
Mar 15, 2024

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