The Short Version
Not all debt is equally harmful — it's useful to distinguish debt that builds long-term value or is relatively low-cost ('good debt,' like a reasonably priced mortgage or student loan tied to real earning potential) from debt that finances depreciating purchases or carries very high interest ('bad debt,' like high-rate credit card balances or payday loans). The distinction isn't absolute — even 'good' debt becomes a problem if it's larger than you can comfortably repay.
Explain It Like I'm 10
Imagine borrowing money from a friend to buy a bike you'll use to deliver newspapers and earn money — that debt actually helps you make more money over time, at a friendly, low interest rate. Now imagine borrowing from a much stricter lender, at a steep rate, just to buy candy that's gone in a day — that debt gives you nothing lasting and costs you extra on top. Same idea as 'debt,' very different outcomes depending on what it was for and how expensive the borrowing itself is.
Step-by-Step Example
- 1 A mortgage at 6% interest funds a home that can build equity over time and may appreciate — commonly considered 'good debt' if the payment fits comfortably in the budget.
- 2 A student loan at 5% interest funds a degree that increases lifetime earning potential — also commonly considered 'good debt,' assuming the borrowed amount is reasonable relative to expected income.
- 3 A credit card balance at 24% interest, carried for a purchase that's already been used up (a vacation, dining out) — this is the classic 'bad debt' example, since the cost keeps compounding with nothing left to show for it.
- 4 A payday loan at an effective rate of several hundred percent annually to cover a short-term cash gap — extreme bad debt, often trapping borrowers in a repeat-borrowing cycle.
- 5 The same person could have all four debts at once — the goal isn't to avoid all borrowing, it's recognizing which debts are working for you and which are working against you.
Quick Recap
- ✓ Good debt tends to have relatively low interest, finance an appreciating or income-generating asset, and come with predictable terms (mortgages, many student loans, business loans).
- ✓ Bad debt tends to have high interest, finance a depreciating purchase or ongoing consumption, and often accumulates rather than pays down (credit card debt carried month to month, payday loans).
- ✓ Even 'good' debt can become harmful if it's disproportionate to income — the category isn't a free pass to over-borrow.
- ✓ The dividing line is really about interest rate, purpose, and whether the debt is manageable relative to your income — not the type of loan alone.