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Good Debt vs Bad Debt

Not all debt is equal. A useful — if imperfect — framework distinguishes between debt that builds long-term value and debt that doesn't.

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Good Debt vs Bad Debt

The Distinction

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Photo by Vitaly Gariev on Unsplash

Not all debt is equal. A useful — if imperfect — framework distinguishes between debt that builds long-term value and debt that doesn't.

Good debt finances something that is likely to appreciate in value or generate returns that exceed the cost of borrowing. A mortgage on a property that gains value, or a student loan that produces meaningfully higher lifetime income, can fit this description.

Bad debt finances depreciating assets or consumption. Car loans, credit card balances for everyday spending, and buy-now-pay-later financing for discretionary purchases all carry costs with no expected return to offset them.

Why the Distinction Matters — and Its Limits

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Photo by Sam Battaglieri on Unsplash

The good/bad framework is a useful mental shortcut, but it has limits. A mortgage on a property at the wrong price or in the wrong market can turn out badly. A student loan in a field with poor employment outcomes can become a burden, not an investment.

The more precise question is: Does the expected return on what I'm borrowing for exceed the cost of the debt? If yes, the case for borrowing is stronger. If no, the debt is a liability with no compensating upside.

High-Interest Consumer Debt

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Photo by CardMapr.nl on Unsplash

Credit card debt is the most widespread form of harmful debt. Interest rates of 20–30% APR are common, and the compound effect at those rates is severe: a $5,000 balance at 24% APR, paying only the minimum, can take over a decade to clear and cost more in interest than the original balance.

The psychological accessibility of credit — tap to pay, one-click purchases — makes it easy to accumulate debt faster than you realise.

Using Debt Strategically

a man and woman sitting at a table with a laptop

Photo by Vitaly Gariev on Unsplash

Debt isn't inherently bad. Used deliberately, it can accelerate outcomes that would otherwise require years of saving. The key principles for using debt wisely:

  1. Know the total cost — not just the monthly payment.
  2. Borrow only for things with a justifiable return — financial or otherwise.
  3. Keep debt manageable — your total debt obligations should leave enough cash flow to save and cover unexpected expenses.
  4. Have a clear repayment plan before you borrow.

Educational content only. Not financial, investment, tax or legal advice. Learn more

Quiz me on this
What characterises "good debt" in personal finance?
  1. Debt with a low interest rate
  2. ✓ Debt used to finance things likely to appreciate or generate returns exceeding the borrowing cost
  3. Debt owed to family rather than banks
  4. Any debt with a repayment period longer than 5 years
Why is the good debt / bad debt distinction considered imperfect?
  1. Banks don't recognise the distinction
  2. All debt is bad regardless of purpose
  3. ✓ A supposedly "good" debt can turn out badly depending on price, terms, or outcomes
  4. Good debt is always interest-free
What makes high-interest credit card debt particularly harmful?
  1. It reduces your credit score permanently
  2. Banks charge extra fees specifically for credit card balances
  3. ✓ Compound interest at very high rates can cause the balance to grow faster than minimum payments reduce it
  4. Credit card debt is the only type that cannot be refinanced
Which is the most precise question to ask before taking on any debt?
  1. Is this debt secured or unsecured?
  2. ✓ Does the expected return on what I'm borrowing for exceed the cost of the debt?
  3. Have I used this type of debt before?
  4. Is the lender a reputable institution?