The short version
- Credit utilization is the share of your available credit you're actually using, expressed as a percentage.
- Equifax Canada names it as one of the biggest factors in your credit score calculation, separate from whether you pay on time.
- Canadian credit card utilization averaged 22.8% at the end of 2025, its lowest level since Q2 2023, per Equifax's Global Credit Trends data.
- Utilization is reported monthly and can move within one billing cycle — it's the fastest lever most applicants have before a mortgage application, faster than building payment history.
What Credit Utilization Actually Is
Most people applying for a mortgage know that paying bills on time matters. Fewer know that how much of their available credit they're using, separate from whether they pay it off, is one of the biggest factors going into the score a lender pulls on their file.
Equifax Canada defines credit utilization simply: it's how much of your available credit you're actually using, shown as a percentage. If you have a credit card with a $1,000 limit and a reported balance of $300, your utilization on that card is 30%. Lenders and the credit bureaus look at this both per card and across your total available credit.
According to Equifax's own education materials, higher utilization can lower your score because heavy utilization is statistically more common among people who go on to miss payments — it's a leading indicator, not just a snapshot. Lower utilization, by the same logic, tends to signal that you can borrow a little and pay it back responsibly rather than running balances close to the limit.
Where Canadians Actually Stand
Equifax's Global Credit Trends data shows Canadian credit card utilization averaged 22.8% at the end of 2025, its lowest point since the second quarter of 2023. The commonly cited guideline — keep utilization at or below 30% — puts the average Canadian comfortably under that threshold, but averages hide a wide range of individual files, and a single high-balance card can pull your own number well past it even if your overall spending looks modest.
A Worked Example
Say you're carrying three credit cards: a $5,000 limit with a $4,200 balance, a $3,000 limit with a $200 balance, and a $10,000 limit with a $1,000 balance. Added together, your combined utilization is ($4,200 + $200 + $1,000) ÷ ($5,000 + $3,000 + $10,000) = 30%. On the surface, that sits right at the commonly cited guideline.
But the first card alone is at 84% utilization — and because utilization is assessed per card as well as in total, that single account can drag on your score even though your overall number looks acceptable. Paying that one balance down to, say, $1,000 drops its individual utilization to 20% and your combined utilization to about 15.4%, without touching either of the other two cards.
Why This Matters on a Mortgage File Specifically
Your credit score doesn't set the price you're offered by itself, but it affects which lenders will approve your file at all, and it's one input among several — alongside income, debt load and the property itself — that a broker uses to match you to the right lender. Recent CMHC data on newly insured homeowner mortgages puts the average credit score at origination at 789, with borrowers scoring 780 or higher accounting for 61.2% of insured volume in the second quarter of 2026 — a reminder of how strong the typical approved file actually looks.
Utilization is worth focusing on specifically because it's one of the few factors on your file you can move quickly. Payment history builds over months and years. Utilization is recalculated and reported roughly monthly, which means a deliberate pay-down in the weeks before you apply can show up on your file before your lender even pulls it.
What Actually Moves the Number
- Pay down balances, especially on any single card sitting close to its limit, rather than spreading small payments evenly.
- Pay more than once a month if you use a card heavily — card issuers typically report your balance once a month, so a payment made before the statement date can lower what gets reported, not just what you owe.
- Avoid closing old cards before applying. Closing an account reduces your total available credit, which can push your utilization up even if your spending hasn't changed.
- Ask about a credit limit increase on an account with a strong payment history — it lowers your utilization ratio without changing your spending, provided you don't use the extra room.
None of this replaces the basics — paying on time remains the single biggest factor in most credit scoring models. But if you're a few months out from applying and your score isn't where you'd like it, utilization is usually the fastest lever available, and it's worth checking before a broker pulls your file rather than after.
Lines of Credit Count Too
Utilization isn't limited to credit cards. Unsecured and secured lines of credit, including a HELOC, are generally assessed the same way — balance against available limit. A large HELOC balance carried close to its limit can weigh on your score in exactly the same way a maxed-out credit card does, even though a HELOC feels more like a mortgage-adjacent product than everyday spending.
This is worth knowing if you're planning to use a HELOC for a renovation, a down payment on a second property or debt consolidation before applying for a new mortgage elsewhere: drawing it down heavily right before you apply can move your utilization, and therefore your score, at the exact moment a lender is looking at your file most closely.
Nearly thirty years in Canadian financial services, based in Waterloo Region and working across Ontario. Most people are handed a product — you deserve a plan.
Credit scoring models vary by bureau and lender, and this describes general factors rather than a guarantee of any specific outcome or approval. Everything here is illustrative and subject to lender approval and final terms.
Sources: Equifax Canada, What Is Credit Utilization? · CMHC, quarterly insured mortgage portfolio data, via Canadian Mortgage Trends