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Good Debt vs. Bad Debt: How to Tell the Difference

Grigory Agrest·June 9, 2026·4 min read

"Debt" sounds like a dirty word, but it's really a tool. Used well, it can help you build wealth. Used badly, it quietly eats your income. The skill is telling the two apart.

What makes debt "good"

Good debt generally helps you own something that grows in value or boosts your income over time, and it usually comes with a lower interest rate. Think of borrowing that opens doors — investing in skills or assets that can pay you back. Even good debt should be borrowed carefully and within your means.

What makes debt "bad"

Bad debt usually funds things that lose value or get consumed, and it tends to carry high interest. The classic example is a credit card balance you carry month to month — the interest can pile up faster than you can pay it down. Financing everyday purchases you can't actually afford is how people get stuck.

The real test

Ask two questions: What is this debt buying me? and What's the interest rate? Low-rate borrowing for something that builds your future leans "good." High-rate borrowing for something that disappears leans "bad."

How to handle each

  • Attack high-interest bad debt first — it's the most expensive money you'll ever owe.
  • Never pay just the minimum on a credit card if you can help it.
  • For lower-rate good debt, steady on-time payments are usually enough.

Debt isn't the enemy — expensive, careless debt is. Borrow on purpose, and make sure it's working for you, not against you.

Put this into practice.

Money School turns lessons like this into a game — with a stock simulator and an AI tutor. Built for ages 18–29.

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An educational program. Not financial advice.