Good Debt, Bad Debt, and Why Nobody Taught Us the Difference

Most of us grew up with one rule about debt.

Avoid it.

Pay it off as fast as you can. Don't spend what you don't have. Debt is a burden, a source of stress, something to be ashamed of if you're carrying too much of it.

And honestly? That instinct isn't wrong. It's just incomplete.

Because not all debt works the same way. And the difference between the two kinds is one of the most useful things most Canadians were never taught.

The debt that costs you

Bad debt is what most of us think of when we hear the word.

Credit card balances. Car loans. Lines of credit used to cover expenses you couldn't otherwise afford. This kind of debt has one job: it moves money from your pocket to someone else's. The interest compounds, the balance grows, and the only thing it's building is a bigger bill.

Bad debt finances things that lose value. It doesn't generate income. And it has no upside — just a monthly reminder of money already spent.

The debt that works for you

Good debt is different in one important way.

It's borrowed money that has the potential to generate a return greater than what the debt costs you.

A student loan that funds a degree leading to higher lifetime earnings. A business loan that generates revenue. A mortgage on a property that appreciates over time.

These aren't guarantees. But the structure is fundamentally different — you're borrowing to build something, not just to consume something.

Where it gets interesting

Here's where most financial conversations stop. Good debt, bad debt, end of lesson.

But there's a third idea worth understanding, and it's one that most Canadians never encounter.

Debt can be converted.

Specifically, non-deductible debt — like a standard mortgage — can be restructured into deductible debt used to invest. In Canada, interest on money borrowed to invest in income-producing assets is tax deductible. Interest on your mortgage is not.

That distinction sounds technical. The real-world impact isn't.

A homeowner who understands this can use the equity they're already building — through mortgage payments they're already making — to invest. The interest on that investment borrowing reduces their tax bill. The investments grow in parallel with their mortgage paydown. And the whole thing runs on money they were already spending.

No extra income required. No lifestyle changes. Just a different structure.

Why did nobody teach us this?

It's a fair question.

The honest answer is that the financial system isn't particularly motivated to explain it. Banks make money on mortgage interest. The conventional advice — pay it down, then invest — keeps things simple and profitable for the institutions involved.

That doesn't mean there's a conspiracy. It just means that most of us had to find this information on our own. And most of us never did.

The takeaway

Debt isn't inherently good or bad. It depends entirely on what it's doing.

Debt that finances things that lose value and generates no return? That's the kind worth avoiding and eliminating as fast as you can.

Debt that's structured to build something — a portfolio, a business, a future — is a different animal entirely.

Understanding the difference isn't about being reckless with money. It's about being strategic with it.

And strategy is something everyone deserves access to — not just the people who already have a financial advisor in the family.