How the Wealthy Use Debt to Build Wealth — and What Physicians Are Getting Wrong 

A colleague of mine — a vascular surgeon, twelve years out of fellowship — recently confided something over coffee that stuck with me. 

“I pay cash for everything,” he said, almost proudly. “No debt. That’s how I was raised. That’s what my father taught me.” 

He owns his home outright. He drives a car he paid cash for. He has a modest investment account, predominantly index funds, and he sleeps well at night. He is, by every conventional measure, doing everything right. 

But when I asked him what his net worth would look like in ten years if he kept doing exactly what he’s doing, he went quiet. 

That silence is telling. Because the question isn’t whether debt is dangerous — it clearly can be. The question is whether avoiding all debt is a strategy or simply an inherited reflex masquerading as one. 

Two People. Same Loan. Completely Different Outcomes. 

Consider this scenario. Two people each borrow $200,000 at the same interest rate on the same day. Five years later, one is measurably wealthier. The other has less than when they started. 

The first person used the loan to acquire a cash-flowing asset — a small apartment complex, a medical office building, or a note secured by real property. The asset generates income that exceeds the debt service. The loan didn’t cost them money; it made them money. 

The second person borrowed to finance consumption — a luxury vehicle, a renovation on a primary residence, a vacation that felt earned after years of 60-hour weeks. The purchase began depreciating the moment they signed. The loan cost them the principal, the interest, and the opportunity cost of what that capital could have done otherwise. 

Same loan. Same amount. Same five years. The variable isn’t the debt itself — it’s what the debt was pointed at. 


The System Was Designed for This — Just Not for You 

This is not a conspiracy theory. It is simply the mechanics of how capital works in this country — mechanics that are available to anyone willing to understand them but that tend to benefit those who already have assets and relationships. 

High-net-worth investors routinely borrow against their portfolios, their real estate, and their business interests not because they need the money, but because borrowed money is not taxable income. They use the capital to acquire more assets, letting those assets appreciate while their original holdings remain untouched and compounding. 

This is sometimes called the Buy-Borrow-Die strategy, and while the name is blunt, the mechanics are elegant: buy appreciating assets, borrow against them at low rates, live on the borrowed capital (which carries no income tax liability), and pass the assets to heirs at a stepped-up cost basis, effectively eliminating the capital gains entirely. 

You will not hear this explained at most financial planning seminars targeted to physicians. The conversation there typically centers on maximizing retirement contributions, managing student loan refinancing, and term versus whole life insurance. These are legitimate topics. But they are not how the ultra-wealthy operate — and increasingly, they are insufficient for physicians who want genuine financial independence, not simply a comfortable retirement. 

The Physician’s Specific Problem With Debt 

Most of us entered medicine already carrying debt. By the time we were attendings, the psychological weight of those loans had shaped our entire relationship to borrowing. We learned to associate debt with vulnerability, with sleepless nights, with the feeling of being behind. 

That conditioning is understandable. It is also dangerous if left unexamined. 

Because what we experienced with student loans was, in fact, bad debt — high-interest, non-deductible borrowing on a depreciating asset (a degree that created income but no transferable value). That experience taught us that debt is the enemy. 

But that lesson was too broad. Debt is not the enemy. Uninformed debt is the enemy. Debt deployed against assets that lose value is the enemy. Debt used to fund lifestyle inflation is absolutely the enemy. 

Debt used to acquire assets that generate income greater than the cost of borrowing? That is a wealth-building tool, and some of your wealthiest colleagues are using it quietly, consistently, and quite deliberately. 

Practical Framework: Good Debt Versus Bad Debt 

The distinction is not complicated, even if it requires discipline to maintain. 

Good debt has three characteristics: the interest rate is lower than your expected return on the deployed capital; the borrowed funds are used to acquire something that either appreciates, generates income, or both; and the debt is serviceable without stress from your existing cash flow. 

Bad debt fails at least one of those tests. A car loan at 7% on a vehicle losing value is bad debt. A mortgage on a primary residence in an appreciating market at 5% is closer to neutral and can shade toward good, depending on your alternatives. A commercial real estate loan at 6.5% on a property yielding 9% net is good debt, nearly by definition. 

The wealthy are not morally superior to us on this question. They simply had more exposure, earlier, to people who framed debt this way. They grew up seeing their parents borrow to buy rental properties, to fund business acquisitions, and to leverage low-rate environments into appreciating positions. That framing became intuitive. For most physicians, whose parents were middle-class professionals taught to equate debt with failure, the opposite framing became intuitive instead. 

What This Looks Like in Practice 

I know an orthopedic surgeon who refinanced her primary residence at a low fixed rate two years ago. Rather than paying down the mortgage aggressively — which her instincts told her to do — she deployed the freed capital into a medical office building syndication offering preferred returns above her mortgage rate. The mortgage is now, in effect, subsidizing her investment returns. She is making money on the spread. 

I know a hospitalist who used a portfolio line of credit — borrowing against the value of his investment account without liquidating it — to fund the down payment on a small multifamily property. His investment account continued to compound. The property has cash flows. The loan cost less than either asset returned. He used debt the way the wealthy use debt: as a tool of leverage, not a concession to scarcity. 

These are not exotic arrangements. They are available to any credentialed physician with a solid balance sheet and a willingness to learn a slightly different grammar around capital. 

The Conversation Worth Having With Yourself 

Ask yourself: Where did my beliefs about debt come from? Were they formed from observation of people building wealth or from observation of people struggling with it? 

There is nothing wrong with conservatism. There is nothing wrong with simplicity. Plenty of physicians build comfortable lives by earning well, spending modestly, and saving diligently. That path works. 

But if your goal is not merely comfort — if your goal is genuine financial independence, the kind where income is no longer contingent on your physical presence in a hospital or clinic — then the question is whether your current relationship to debt is serving that goal or simply satisfying an inherited aversion that has never been pressure-tested by logic. 

The wealthy are not playing a different game because they are smarter. They are playing a different game because they were handed a different rulebook. The rulebook is available to anyone willing to read it. 

The debt trap is not the existence of debt. The debt trap is borrowing without a framework — without asking what the money will do, whether it will return more than it costs, and whether the underlying asset will strengthen your position or quietly erode it. 

Get the framework right, and debt stops being the enemy. It becomes one of the most powerful tools in your financial arsenal — one that, used correctly, lets your capital work in two places at once.