"Debt" gets treated like a single scary word, but there's a world of difference between a low-rate mortgage and a maxed-out credit card. Learning to tell good debt from bad debt is one of the highest-value money skills there is — it decides which borrowing builds your future and which quietly drains it.
The simple test
Ask one question: does this debt buy something that's likely to grow in value or increase your income — or something that loses value while charging you a high rate? Debt that helps you build (a home, an education that raises your earning power, a tool for your business) can be reasonable. Debt that funds depreciating stuff at a high interest rate is the kind to avoid.
Typically 'good' debt
- A sensible mortgage on a home you can afford.
- Reasonable student debt that genuinely raises your income.
- Low-rate borrowing for a business asset that earns more than it costs.
None of these are automatically good — they're only good when the rate is fair and the payments fit your budget.
Usually 'bad' debt
- Credit card balances carried month to month — often the most expensive money you'll ever borrow.
- High-rate loans for things that lose value fast.
- 'Buy now, pay later' stacked until you lose track.
The villain here is almost always the interest rate. A balance at 20%+ grows faster than most investments — which is why paying it off is a guaranteed 'return' few investments can beat.
How to dig out of the bad kind
Two proven approaches: the avalanche (attack the highest interest rate first to save the most money) or the snowball (clear the smallest balance first for a motivating quick win). Both work — the best one is the one you'll stick with. Whatever you choose, always pay more than the minimum; the minimum is designed to keep you in debt for years.
Curious how money math really works? Test yourself with the Money IQ quiz, and once the bad debt is gone, point those payments at a goal using the Savings Goal calculator.
This guide is general education, not personalized financial advice.