Personal finance media loves a simple villain, and debt has played that role for decades. The reality is more nuanced, and the wealthiest households in America generally know this. Strategic debt has been used for generations to build wealth, smooth income, and acquire appreciating assets. The blanket “debt is bad” framing is mostly a defense against the genuinely destructive forms of debt, and it ends up scaring people away from tools that could actually improve their financial position.
The arithmetic that separates good debt from bad
The distinction comes down to two questions: what does the debt buy, and what does it cost? Borrowing at 4 percent to acquire an asset that produces 8 percent returns is a profitable trade. Borrowing at 24 percent to buy something that depreciates is a guaranteed loss. Mortgages on reasonably valued property, federal student loans for credentialed degrees with strong labor market returns, and business loans for proven cash-flowing operations have produced more household wealth over the past century than almost any other tool. Credit card revolving balances, payday loans, and installment financing on consumer goods have produced the opposite. The instrument is the same; the use case determines the outcome. Treating them all as one category misses the point and steers people away from the leverage that actually builds long-term wealth.
Leverage is how the wealthy stay wealthy
High-net-worth households rarely pay cash for major purchases even when they can. They borrow against portfolios at low rates, deduct mortgage interest where allowed, and let their invested assets compound at higher rates than the cost of the debt. This is leverage, and it’s the standard playbook for people who already have money. The IRS Statistics of Income data on top earners consistently shows substantial mortgage and securities-based borrowing alongside large investment portfolios. The arbitrage between the cost of borrowing and the return on capital is one of the most reliable wealth-building strategies available, and it scales. The wealthy aren’t avoiding debt; they’re using it strategically while telling middle-class audiences that all debt is dangerous.
Where the warning is genuinely warranted
None of this defends bad debt. High-interest revolving credit is mathematically catastrophic over time, and the typical American carries enough of it to negate years of investment returns. Auto loans on rapidly depreciating vehicles, particularly the seven-year and eight-year terms now common, often leave borrowers underwater for most of the loan’s life. Buy-now-pay-later plans, payday loans, and rent-to-own arrangements function as wealth extraction systems aimed at people with limited alternatives. The warning against debt as a category exists because these products are widespread and predatory, and the simplification protects vulnerable consumers from products designed to harm them. That’s a defensible heuristic, but it’s a heuristic, not the truth.
The bottom line
Debt is a tool, and tools are evaluated by what they’re used for. A mortgage on a sensibly priced home you’ll live in for a decade is not the same financial instrument as a credit card balance carried at 24 percent. Pretending they are flattens a distinction that matters enormously. The honest version of the rule is shorter and more useful: borrow when the math works, and never when it doesn’t.
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