Debt has a bad reputation, but borrowing is really just a tool — and like any tool, it can build or destroy depending on how it’s used. The key is learning to tell good debt from bad debt, and measuring how much your finances can safely carry.
What makes debt “good”?
Good debt tends to fund things that grow in value or boost your income over time — a reasonable mortgage, education, or a business loan. It often carries lower interest and can be a form of leverage: using borrowed money to control an asset worth far more than your cash alone.
And what makes it “bad”?
Bad debt funds things that lose value or get consumed, usually at high interest — credit-card balances, payday loans, or borrowing for a depreciating car you can’t really afford. Remember that compounding works against you here: a 20% balance left unpaid grows relentlessly, the mirror image of a growing investment.
DTI: the ratio lenders judge you by
Your debt-to-income ratio (DTI) is your total monthly debt payments divided by your gross monthly income. Lenders use it to decide whether you can take on a mortgage. As a rough guide, a DTI under 36% is considered healthy, while above 43% makes borrowing harder. It’s also a sharp personal metric: the lower your DTI, the more of your income is truly yours.
A strategy to pay it down
If bad debt is weighing you down, two proven strategies help. The avalanche method targets the highest-interest debt first to save the most money; the snowball method clears the smallest balance first for quick psychological wins. The best method is the one you’ll actually stick with.