Pay down debt or invest?

Both choices, month by month, spending exactly the same money. Whichever one you take, a cleared debt frees up its payment.

Your spare money

What you have left after your bills and your current debt payments. This is the money the page is deciding what to do with.

A bonus, a tax refund, or savings you could put to work today.

100% to debt, 0% invested

$500 a month to debt, $0 invested. The results always compare all-debt and all-investing as well, whatever you set here.

Which debt first

Your debts

Credit card

Gone in 9 mo

Typical minimum: about 3% of the balance. Once this debt is gone, the payment is freed up and goes toward whatever is left, in every scenario.

Most Canadian credit cards charge around 20 to 23% a year on purchases, and more on cash advances.

If you invested instead

Before fees, and not guaranteed. Paying off a debt is.

TFSA growth is tax-free. An RRSP gives a refund now, assumed reinvested here, and is taxed on withdrawal. Non-registered growth is taxed as it happens.

The answer

Paying down debt first comes out ahead

$2,488 ahead after 10 years

Your debts cost more than your investments are expected to earn after tax.

Net worth, interest paid and time to clear every debt, for each choice
ChoiceNet worthInterest paidDebt-free in
Pay down debt first$93,870$4189 mo
Invest first$91,383$2,5704 yr 3 mo

Debt by debt

Clearing a debt is like earning its interest rate, guaranteed. Investing is expected to earn about 5.5% a year after fees and tax. That is the number each rate below is measured against.

  • Credit card 21%Pay this first

Year by year

Net worth at the end of each year, for each choice
YearPay down debt firstInvest first
1$2,396$1,976
2$10,523$9,482
3$19,096$17,581
4$28,141$26,345
5$37,684$35,780
6$47,751$45,743
7$58,372$56,254
8$69,577$67,342
9$81,399$79,041
10$93,870$91,383

What this does and does not settle

Tax brackets and the basic personal amounts are the 2026 figures, and they change every year. Prime moves more often than that, so check the rate on your own statement rather than trusting the default for your debt type.

The comparison leaves out two things on purpose, because no calculator can weigh them for you. An employer match on a retirement contribution usually beats both options outright. And an emergency fund comes before either: clearing a card only to put the next surprise straight back on it leaves you worse off than the arithmetic suggests.