Lesson 6 of 9

Good debt vs bad debt

5 min read

Debt has a bad reputation, and often deservedly — but not all debt is equal. Used carelessly, borrowing traps people for years. Used deliberately, some borrowing can genuinely help build a life. Learning to tell the two apart is the foundation of handling credit well.

"Good debt" generally means borrowing that helps you build something of lasting value, usually at a reasonable interest rate. A mortgage lets you own a home instead of renting forever. A student loan can raise your lifetime earnings. A sensible business loan can create income. These aren't automatically good — a mortgage you can't afford is still a problem — but the borrowing is tied to something that grows your wealth or earning power over time.

"Bad debt" generally means borrowing to buy things that lose value or get consumed, especially at high interest. Putting a holiday, clothes or everyday spending on a credit card you can't clear, or taking a payday loan at an eye-watering rate, means paying extra — sometimes a lot extra — for something that's gone or worth less almost immediately. The debt outlives the benefit.

Why this matters for you. The label matters less than the question behind it: is this borrowing moving me forward or holding me back? A low-rate loan for something that builds value can be sensible; high-rate borrowing for things you consume is where people get stuck. Knowing the difference lets you borrow when it genuinely helps and avoid it when it quietly hurts.

Key terms

Good debt
Borrowing tied to something that builds lasting value or earning power, usually at a reasonable rate.
Bad debt
High-interest borrowing for things that lose value or are consumed, where the debt outlives the benefit.
Principal
The original amount borrowed, before interest is added.

Quick check

2 questions. No pass mark — this is just to make it stick. Sign in free to save your score.

1. What generally makes debt 'good'?
2. Which is a typical example of 'bad debt'?
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mySal Academy is financial education, not financial advice. It explains how things work in general terms — it can't recommend products, investments or what you personally should do. For advice about your own situation, speak to a qualified adviser or your local tax authority.