You’ve probably heard the phrase “good debt” and wondered if that’s just something banks made up to make you feel better about borrowing money. It’s not a myth — but it’s also not a blank check to borrow without thinking. Here’s how to actually tell good debt from bad debt, and what to do with each.
The core difference
Good debt is borrowing that increases your net worth or earning potential over time. The thing you’re financing is worth more than what you paid for it, or it enables you to earn more than the cost of the loan.
Bad debt is borrowing to buy things that lose value, provide only temporary enjoyment, or cost you significantly more through interest than the thing was worth in the first place.
The line isn’t always clean. The same category of debt can be good or bad depending on the terms, the amount, and the specific situation.
Examples of good debt
- A mortgage on a home. Real estate tends to appreciate over time. You’re building equity with every payment. The interest rate is typically low relative to other borrowing. And you need somewhere to live anyway — you’re either paying rent or paying a mortgage. Buying a home within your means at a reasonable interest rate is generally considered good debt.
- Student loans (with conditions). Education that increases your earning power over your lifetime can be worth borrowing for. A nursing degree that takes you from $15/hr to $35/hr is a clear investment. The condition: borrow only what you expect to earn in your first year of work. If you’re studying education and expect a $42,000 starting salary, a $40,000 degree is reasonable. A $120,000 degree is not. The degree matters, the amount matters, and the specific field matters.
- A business loan for a viable business. Borrowing to start or grow a business that generates real revenue can create far more wealth than the cost of the loan. The risk is higher, but the potential return is too.
Examples of bad debt
- Credit card debt carried month to month. Buying everyday expenses — food, clothing, entertainment — on a credit card and not paying the full balance is the most common and costly form of bad debt. At 20–29% APR, you’re paying enormous interest on things that provided only temporary value. A restaurant meal financed at 24% APR and paid off over 18 months costs significantly more than what you ordered.
- Buy-now-pay-later on discretionary purchases. Services like Afterpay and Klarna feel like a free option but often lead people to buy things they wouldn’t otherwise afford and accumulate multiple small payments that add up to a budget problem.
- Car loans on vehicles you can’t afford. Cars lose 15–20% of their value in the first year. Financing a car that’s beyond your means at a high interest rate means you’re paying interest on a depreciating asset. A reasonable car loan (less than 10–15% of your take-home pay in monthly payments, under 4–5 years) can be managed. A large loan at a high rate on an expensive car is a financial anchor.
- Payday loans. These are almost always bad, regardless of circumstances. Annual percentage rates of 300–400% are common. They’re designed to trap borrowers in a cycle of rolling debt. Avoid them entirely if at all possible — a personal loan from a credit union, help from family, or even a credit card cash advance is almost always cheaper.
The questions to ask before taking on any debt
- Will this make me more money than it costs me? (Earning potential)
- Will this thing be worth more over time? (Appreciation)
- What’s the interest rate, and can I realistically pay this off? (Cost)
- Am I borrowing out of genuine need or impulse? (Discipline)
- What happens if my income drops — can I still handle this payment? (Risk)
Even good debt can become bad debt
Too much of any debt — even theoretically “good” debt — becomes a problem. A mortgage that takes more than 28–30% of your monthly gross income, student loans that far exceed your earning potential, a business loan for a business without a clear path to revenue — these become burdens regardless of the category they fall into.
The label matters less than the numbers. Does the debt make financial sense in your specific situation? Will you be able to pay it back without sacrificing everything else? Those are the questions that matter.