Debt: What It Is, How It Works (In A Nutshell)

For some people, debt feels like a heavy weight. For others, it’s a risky, strategic tool. And for many, it’s confusing, stressful, and misunderstood. So today, we’re going to break it down in a simple, practical, and empowering way.

What is debt?

At its core, debt is simply borrowed money that must be repaid, usually with interest. Every time you use a credit card, take out a student loan, get an auto loan, or begin lines of credit, you’re entering into a legal agreement:  You receive money (or value) now, and you promise to repay it later — typically with extra money called interest.  Some debt offers, usually for a limited time, offer no interest. Debt exists because most people don’t have hundreds of thousands of dollars in cash to buy homes, pay for education, or start businesses. Whether they should go into debt for any of those things is a whole other conversation. But everyone can agree that without debt, modern economies would function very differently. But just because debt is common doesn’t mean it’s harmless.

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Before we can get technical, we need to talk about behavior. Debt is often less about math and more about psychology. When you swipe a credit card for purchases, your brain doesn’t feel the loss the same way it does when you hand over cash. Studies show that paying with plastic reduces the “pain of paying.” That’s why credit cards can be dangerous if not managed carefully.  And while I haven’t seen any stats, I would imagine it’s even less painful if you pay with your phone.  Or your watch.  Or whatever other technology is available now. There’s also lifestyle inflation — as income rises, spending rises with it. Easy access to consumer debt fuels this. You don’t need to wait anymore. You can have that 85-inch television now instead of saving for it.  Or take that dream vacation and not worry about the cost until you get back. If debt gets out of control, it can create long-term stress, anxiety, conflict in relationships, and shame.  If you choose to have debt, it’s important to be sure debt doesn’t start to have you!  It all depends on how it’s used. So, how does interest work?  We have two different types of interest: interest earned and interest paid.  We like the interest earned.  Few things in life are as satisfying as putting your money somewhere and watching it grow with little or no effort on your part. Interest paid has the opposite effect.  In the simplest terms (and interest can be calculated several different ways I won’t get into), it’s the cost of borrowing money. If you borrow $1,000 at 20% interest and don’t pay it off, you don’t just owe 20% once. Interest compounds.

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Compound interest means you pay interest on:

• The original amount
• Plus the accumulated interest

This is powerful when investing.   It has a negative impact when borrowing. Let’s say you carry a $5,000 credit card balance at 20% interest and make only minimum, on-time payments. You could end up paying thousands extra and barely touching the principal. This is how creditors make their money, and they are very good at it.  So your goal is either to avoid high-interest debt or to eliminate it quickly. Let’s break debt into some typical categories: Credit cards typically carry the highest interest rates — often 15% to 30% annually. Companies like Visa and Mastercard don’t lend the money themselves; banks issue the cards. If you don’t pay the full balance each month, interest compounds quickly with monthly payments. This type of debt is usually considered high-risk because: It’s unsecured (no collateral)- unlike a car loan or mortgage, the bank has nothing they can go after if you refuse to pay.  To get their money back, they have to work harder. Because it has no collateral, it carries higher interest rates.  The lender wants to cover its risks. The biggest complication with credit card debt is that it’s easy to accumulate.  If mismanaged, it can spiral fast.  A few charges a week can really add up at the end of the month when you get your bill, and you discover you have too much debt. Student loan debt often carries lower interest rates than credit card debt, especially federal loans. The idea, in theory anyway, is that education puts you in a better financial position to pay back the debt.  And there is certainly some education that increases your earning potential. However, there are huge risks with student loans.  One of the most common is that people take out loans, begin school, and then never finish their college education.  Those loans don’t go away because the student decides to quit. Few people I know graduate and then immediately move into the income they were anticipating. If income isn’t as expected, the debt still remains the same.  This may hold someone back from buying a house, traveling, or taking a lower-paying but more satisfying job. Car loans finance depreciating assets. The moment you drive off the lot, the car loses value — but the loan balance doesn’t.  This is why people can become “upside down” on a car loan — owing more than the vehicle is worth. A mortgage is typically the largest debt most people take on.  Unlike cars, real estate has historically appreciated over long periods. Institutions like the Federal Housing Administration help make homeownership accessible by insuring loans. Mortgage interest rates are usually much lower than credit cards because they are secured debt- the loan is secured by property.  This is often considered “productive” debt or good debt— but only if the debt repayment is manageable. There are four other types of debt that are less “common,” but people often forget them when listing their debt. Debt from family is the scariest of them all, even with the best repayment terms.  It can ruin relationships when you borrow money from someone you eat holiday meals with.  Don’t forget to include it and keep it high on your list for repayment. When you went to the cell phone store and bought a new phone or watch on a payment plan, you took on debt.  It’s one of the most cleverly disguised gimmicks out there. Payday/Short-Term Loans from check-cashing facilities have very high interest rates. Avoid those at all costs. But the strangest of them all is the “Pay as you go” like Klarna.  If they charged lots of interest, they would be the worst, but often you can get loans from them without taking on any debt, so payday loans are the worst.  That said, there is nothing like financing your DoorDash burrito in 4 easy payments.

And this is how even the best money people sometimes get trapped

1. Unexpected expense
2. Use a credit card to cover it
3. Only make the minimum payment
4. Interest accumulates
5. Balance grows
6. Stress increases
7. More borrowing to cope

This is called revolving debt. Breaking the cycle requires intentional action — not just hoping it gets better. Now let’s talk about managing your debt.  Most people prefer not to be in debt.  They usually would like to pay it off and use their cash for what they prefer.  When it comes to debt, knowledge is power. The first thing is that you must Know Your Numbers

• Total balances
• Interest rates
• Minimum payments

The fear is worse if you don’t know.  Ignorance is not always the best. Write it out, sit back, take a breath, and look at it. And then it’s time to make a plan.  Most people, when getting control of their financial lives, follow one of two methods:

The Avalanche Method

Mathematically, this saves the most money, but it is often the most discouraging method for people. You organize all your debts by annual percentage rate (APR), from highest to lowest, regardless of balance size.  Extra funds are applied to the debt with the highest interest rate, and once that is paid, the amount is applied to the next-highest debt. Let’s say you have two debts.  A $15,000 credit card at 27% and an $800 personal loan at 10%.  If you have $500 a month to put toward your debt, you could pay off the personal loan in two months.  If you concentrate on the credit card first, it will take at least 35 months while that $800 loan just hangs out.  While mathematically it makes sense, sometimes the Avanlance Method can be a bit discouraging.

The Snowball Method

The snowball method is how I got out of debt.  I like the emotional high, and this way you pay off the smallest balance first for quick wins.  This builds psychological momentum.  You list your debts from smallest to largest and then pay them off in that order.  Once you pay off the smallest one, use that payment to move up the ladder to the next one.  It may take a little bit longer, but you get some big wins early to keep the momentum going. Both methods work — just choose the one that keeps you consistent. Another great option is to increase your income.  Most debt strategies focus on cutting expenses. But increasing income can be far more powerful. You can find side work, develop new skills, or negotiate a higher salary.  Debt shrinks faster when income rises as long as you don’t spend it on other things. And the last but most important piece of advice, no more debt!  If you work this hard to get out of debt, don’t do it again!  After the debt is paid off, build up that emergency fund, so when the next unexpected expense pops up, you are ready!