The Difference Between Good Debt and Bad Debt

Not all debt is the same. Understanding the distinction is one of the most practical things you can do for your financial health.

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The average American credit card interest rate in 2026 is 24.4%. The average 30-year mortgage rate is 6.3%. Both are debt. The financial implications of carrying one versus the other are almost incomparably different.

Most people are taught, implicitly or explicitly, that debt is something to avoid. That instinct is correct in some cases and actively harmful in others. The ability to distinguish between the two is one of the most useful financial skills there is — and it comes down to a few clear principles.

The Difference Between Good Debt and Bad Debt/Peiid

What Makes Debt Good or Bad

The distinction is not really about the amount borrowed or the lender. It is about two things: what the debt is used for, and what it costs.

Good debt is borrowing that is likely to improve your financial position over time. It tends to carry a lower interest rate, finance an asset that holds or increases in value, or generate a return that exceeds the cost of borrowing. Bad debt does the opposite — it finances things that depreciate or disappear entirely, and it tends to carry interest rates high enough that the cost of borrowing outweighs any benefit.

A useful test: if the thing you are borrowing for will be worth more — financially or in earning potential — than the cost of the debt over its lifetime, the debt is likely working in your favour. If it will be worth less, or worth nothing, the debt is working against you.

Examples of Good Debt

A mortgage. A home loan is the most widely held example of good debt. You are borrowing to purchase an asset that has historically appreciated over time, and the interest rate is typically among the lowest available for any type of borrowing. The current average rate on a 30-year fixed mortgage in the US is around 6.3%. For most people, the alternative to a mortgage is paying rent indefinitely — building no equity and retaining no asset at the end.

A student loan. Borrowing to fund education is generally considered good debt, with important caveats. The average university graduate earns approximately $32,000 more per year than someone with only a high school diploma. If the cost of the degree is below the present value of that earnings premium over a career, the borrowing makes financial sense. The caveat is that this logic applies most clearly to degrees with strong employment outcomes. A high-interest private student loan for a course with limited career prospects is a different calculation.

A business loan. Borrowing to start or grow a business that generates revenue is good debt, provided the return on that investment exceeds the cost of the loan. The debt is financing something with productive potential rather than consumption.

Examples of Bad Debt

Credit card debt. The average credit card interest rate in 2026 is 24.4%. Carrying a balance at that rate is extraordinarily expensive. At 24.4%, a balance of €1,000 left unpaid for a year costs €244 in interest alone, and that assumes no additional spending. Almost no investment available to a retail investor reliably returns 24%. Paying off credit card debt is one of the highest-return actions available to most people.

Consumer loans for depreciating purchases. Borrowing to buy a car, a holiday, a wedding, or consumer electronics finances things that lose value immediately and generate no financial return. The item depreciates while the interest accumulates. Personal loans for this purpose currently carry average rates of around 15% — expensive for something that will be worth a fraction of its purchase price within years.

Payday loans and high-cost credit. These sit at the extreme end of bad debt. Annualised interest rates on payday products can reach several hundred percent. They are designed for short-term cash flow gaps and are extremely difficult to escape once a balance begins compounding. Avoiding them entirely is the correct financial position.

The Grey Areas

Not everything fits cleanly into one category.

A car loan at a modest interest rate to finance a vehicle that allows you to access better employment is closer to good debt than bad, even though a car depreciates. A student loan at a high private interest rate for a qualification with limited market demand is closer to bad debt than good, even though education is generally beneficial.

The framework is a guide, not a rule. The key variables to assess for any borrowing are the interest rate, what is being financed, and whether the financial return — in asset value, income, or otherwise — is likely to exceed the total cost of the debt.

What to Do with Bad Debt

If you are carrying high-interest debt, the priority ordering is clear. Pay it down before investing, before saving beyond a basic emergency fund, and before taking on new debt for anything non-essential. A guaranteed return of 24% — the effective return of paying off a credit card — is better than almost anything else available.

If you have multiple debts, the mathematically optimal approach is to pay minimum amounts on all of them while directing any extra money at the highest interest rate debt first. Once that is cleared, redirect the payments to the next highest rate. This is sometimes called the avalanche method, and it minimises the total interest paid over time.

The loan repayment calculator on this site can show you exactly how long it will take to clear a balance at any given interest rate and monthly payment — and how much interest you will pay in total. Knowing that number is often the most motivating thing you can do.

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