Why Your Credit Score Dropped and What to Do About It in Canada

You checked your credit score and it went down — maybe by 10 points, maybe by 50 — and you have no idea what changed. You didn’t miss a payment. You didn’t apply for anything new. Yet there it is, lower than last month. This happens to a lot of Canadians, and the reasons are usually less mysterious than they feel. Understanding the mechanics of how your score is calculated makes it a lot easier to figure out what happened — and what you can actually do about it.

Quick answer: Credit scores in Canada drop for specific, trackable reasons: a hard inquiry from a new application, a higher credit utilization ratio, a missed or late payment, a closed account reducing your available credit, or an error on your Equifax or TransUnion report. Most causes are fixable within a few months once you identify them.

What Are the Most Common Reasons a Credit Score Drops in Canada?

The most common reason Canadian credit scores drop is a sudden increase in credit utilization — the percentage of your available credit you’re currently using. If your limit is $5,000 and you’re carrying a $2,500 balance, that’s 50% utilization, which pulls your score down significantly. Lenders prefer to see utilization below 30%, and ideally below 10% if you’re actively trying to improve your score.

Other common culprits: a hard credit inquiry (which happens every time a lender pulls your file to approve you for credit), a missed or late payment reported by your lender, and a closed account that shrinks your total available credit. Even something as routine as your credit card company reporting your balance at the wrong time in the month can temporarily inflate your utilization and drop your score by a few points before it recovers.

A less obvious reason: the age of your accounts matters. If you close your oldest credit card — thinking you’re cleaning up your finances — you may actually be reducing your average account age, which lowers your score. In Canada, both Equifax and TransUnion use slightly different scoring models, so your score from each bureau can differ by 10–30 points even when everything else is the same.

How to Figure Out Exactly Why Your Score Dropped

The fastest way to diagnose a credit score drop is to pull your full credit report — not just your score — and read it carefully. You’re entitled to a free credit report from both Equifax Canada and TransUnion Canada once per year, and both offer online access. Your report shows every account, every inquiry, every payment, and every public record (like a collections notice or judgment) tied to your name.

Work through it systematically. Check for new hard inquiries you don’t recognize — this could indicate identity theft or an application you forgot about. Look at every account’s payment history and flag any lates, especially ones marked 30, 60, or 90 days past due. Check that your reported balances are accurate; sometimes a lender reports a balance before you’ve had a chance to pay it down.

If something looks wrong — an account you didn’t open, a payment marked late that you made on time, a debt you already paid — that’s an error, and you have the right to dispute it. File a dispute directly with Equifax or TransUnion through their websites, and the bureau has 30 days to investigate and correct it. Errors on credit reports are more common than most people assume, and fixing even one can meaningfully move your score. For a detailed guide, check out our post on what actually moves your credit score in Canada.

Quick tip: Set up free credit monitoring through your bank, Borrowell, or Credit Karma Canada so you get an alert the moment your score changes — before you’re surprised by it weeks later.

What to Do Right Now to Start Recovering Your Score

The single most impactful thing you can do immediately is get your credit utilization down. If you’re carrying a balance above 30% of your limit, pay it down before your next statement closes — that’s the date your lender reports your balance to the credit bureaus, and what gets reported is what affects your score. You can also call your credit card company and ask for a credit limit increase; if they approve it without a hard inquiry, your utilization ratio drops instantly without you paying a cent extra.

If the drop was caused by a missed payment, the fix is straightforward: pay it as soon as possible and set up automatic payments so it doesn’t happen again. One missed payment can stay on your report for up to six years, but its impact fades over time — especially once you build a streak of on-time payments after it. The longer ago the late payment was, the less weight lenders give it.

If a hard inquiry is the cause, there’s not much to do other than wait. Hard inquiries typically affect your score for 12 months, though they stay visible on your report for up to three years. The good news is their impact is usually small — often under 10 points — and diminishes quickly once you demonstrate responsible credit behaviour. For a full playbook on building your score from the ground up, see how to build credit from zero in Canada as a student.

How Long Does It Take for a Credit Score to Recover?

Recovery time depends entirely on what caused the drop. A score that fell because of high utilization can bounce back in as little as one billing cycle once you pay down the balance. A score affected by a hard inquiry typically recovers within 3–6 months as the inquiry’s weight fades and your positive payment history continues building.

A missed payment is a longer fix — it can take 6–12 months of consistent on-time payments to meaningfully offset the damage, and the late payment notation stays on your report for six years even after the score has largely recovered. A collections account is more serious and can take longer, though paying it off and having it marked as settled helps considerably with future lenders even if the notation remains.

The most important thing to know: credit scores are not permanent. They’re calculated fresh every time a lender pulls your report based on what’s in your file right now. Every month you pay on time, keep utilization low, and avoid unnecessary applications, you’re actively rebuilding. Most people who had a moderate drop — not tied to collections or bankruptcy — see their score return to its prior range within three to six months. For more on improving your score, read how to improve your credit score in Canada.

Frequently Asked Questions

Why did my credit score drop when I didn’t do anything?

Your score can drop even when you feel like nothing changed because of factors outside your direct control: your credit card company reports a higher balance at a different time of month, a credit limit decrease (which raises your utilization), or an account being flagged as inactive. The most common “mystery” drops are usually utilization-related and resolve on their own or with a quick balance paydown.

Does checking my own credit score lower it in Canada?

No. Checking your own credit score or report is a soft inquiry and has zero impact on your score. Only hard inquiries — when a lender or creditor pulls your file to make a lending decision — affect your score, and even those only slightly.

How many points does a missed payment drop your score in Canada?

A single missed payment can drop a good credit score by anywhere from 60 to 100 points, depending on how high your score was to begin with and how long the payment was overdue. Scores above 750 tend to take a bigger hit than scores that were already in the 600s. The drop is not permanent, but recovering requires sustained on-time payments over time.

Can I dispute a credit score drop in Canada?

You can’t dispute your score directly, but you can dispute inaccurate information on your credit report with Equifax Canada or TransUnion Canada. If the drop was caused by an error — a wrongly reported late payment, an account you didn’t open, a debt already paid — filing a dispute and having it corrected will update your report and your score should improve accordingly at the next calculation cycle.

How often does my credit score update in Canada?

Your credit score updates whenever a lender reports new information to the credit bureaus, which typically happens monthly. Most credit card companies report your balance and payment status once per billing cycle. If you pay down a balance or make a payment, your score will reflect that within about 30 days once the lender sends the updated data to Equifax or TransUnion.

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