How to Know If Debt Is Working for You…
or Against You
or Against You
Debt, like politics, is one of those topics that gets people ramped up. There are people who believe you should never carry debt under any circumstances. Then there are people on the other end who believe leverage is one of the most powerful wealth building tools available. And both camps will argue their position with conviction.
William’s take is more nuanced than either extreme. And it starts with a simple premise.
Debt is a tool. And like any tool, what matters is whether you are using it correctly.
The Case for Debt as a Wealth Builder
William uses his own mortgage as a straightforward example. Locked in below 3% during the pandemic refinancing window of mid-2020, that debt represents cheap capital. The idea that you can’t generate returns in excess of 3% over the next 30 years is, in his words, ludicrous.
Borrow at 3%, invest at 7 or 8 or 10%, and the math works in your favor. The interest you pay the bank looks different when you put the investment returns column right next to it. Most of the tables that show you how much you paid in mortgage interest over 30 years conveniently leave out the column showing how much your invested capital grew over the same period.
For business owners, the same logic extends to business loans, equipment financing, and property purchases. If you’ve used debt appropriately over the last 20 or 30 years and properly reallocated those resources into investments that grew, debt has very likely created excess wealth that would not have been possible otherwise.
When Debt Works Against You
Not all debt is created equal.
William draws a clear distinction between a sub 3% mortgage on a primary residence and a 9% student loan taken out to fund a degree with limited earning potential.
The math on the first one is compelling.
The math on the second one is a much harder sell.
The key question with any debt is whether the return on what you are buying with that borrowed money is likely to exceed the cost of borrowing it. When the answer is yes, debt is a tool working in your favor. When the answer’s no or unclear, it’s working against you.
The Emotional Side That Nobody Talks About
Here is where William’s take gets interesting.
He fully acknowledges that the math is not the only thing that matters.
There are people who lose sleep over debt, who cannot get it out of their heads regardless of what the spreadsheet says, who feel the weight of owing someone money as a genuine psychological burden that affects how they think, make decisions, and show up every day.
For those people, paying off debt isn’t just a financial decision. It is a mental health decision.
And the peace of mind that comes from being debt free has real and meaningful value, even if it means leaving some theoretical excess wealth on the table.
Did they maximize wealth in the way they could have by leaning into leverage? Probably not. But they sleep better at night. And for them, that is the right answer.
How to Figure Out Where You Stand
The right approach to debt starts with two things. Understanding the numbers and understanding yourself.
Know the rate you are borrowing at and be honest about the realistic return on what you are doing with that borrowed money. Then ask yourself honestly how carrying that debt affects you emotionally.
Does it motivate you or does it paralyze you?
Does it feel like leverage or does it feel like a weight?
The answer to both of those questions together is what tells you whether debt is working for you or against you. Not just the interest rate.
Join the Conversation:
Want to go deeper?
Portus Perspectives is part of a broader conversation. Join William and the Portus team each month for Charting Opportunities — in-depth discussions with founders, exit experts, and business specialists.
ORIGINAL MEDIA SOURCE(S):
William Bissett: The Truth About Debt That Nobody Wants to Hear | Portus Perspectives
Originally Recorded on July 22, 2026
Portus Perspectives: Episode 35