Why did my credit score drop 40 points suddenly?

A sudden 40-point drop in Canada is almost always caused by one of four things: a credit card balance crossing above 30% utilization (−20 to −50 points, the most common cause); a hard inquiry from a new credit application (−5 to −10 points — multiple in one period stack); a missed payment being reported after 30 days past due (−50 to −100 points); or a credit limit reduction by your issuer that raised your utilization ratio without you spending anything. Pull your Equifax and TransUnion reports to see what changed — the cause will be visible as a new account, a changed balance, a new inquiry, or a changed payment status.

Why did my credit score drop when I did not do anything?

Several things can affect your score without you actively doing anything: your credit card issuer reduced your limit, raising your utilization ratio on the same balance; a promotional 0% balance transfer period ended and the balance is now showing differently; an error was added to your credit report; a collection account was registered by a creditor you had not heard from; or a joint account holder removed you from a shared account. These changes originate on the lender or bureau side, not from anything you did. Pull your full credit report at equifax.ca and transunion.ca to identify the specific tradeline that changed.

How much does a missed payment drop your credit score in Canada?

A single missed payment reported to a credit bureau typically drops a score by 50–100 points. The higher your starting score, the larger the drop — someone starting at 780 loses more points than someone starting at 620, because the scoring model penalizes the relative departure from your established pattern. Payments are reported as missed after 30 days past due — your lender does not usually report to the bureau the day you miss the payment due date, which means you often have a short window to pay before it appears on your file.

How long does a credit score drop last?

Recovery time depends entirely on the cause. High utilization recovers within 1–2 billing cycles once the balance is paid down. Hard inquiry impact fades within 6–12 months; the inquiry itself stays on your report for 3–6 years but stops affecting the score after 12 months. A missed payment stays on your report for 6 years and takes 2–3 years of clean history to recover from fully. A collection account stays 6 years from the date of last activity. A consumer proposal stays on Equifax 3 years after completion and up to 6 years on TransUnion. Bankruptcy stays 6 years on Equifax and up to 7 on TransUnion after discharge.

Does checking your own credit score lower it in Canada?

No. Checking your own credit score is a soft inquiry and has no effect on your score whatsoever. All free score-checking services — Borrowell, Credit Karma, your bank's credit score tool — use soft pulls. Only hard inquiries, initiated by a lender when you apply for credit, affect your score. You can check your own score as often as you like without any impact.

Why did my credit score drop after paying off a loan?

Paying off an installment loan — a car loan, student loan, or personal loan — typically causes a temporary 5–15 point score drop. The reason is that closing the account reduces your active credit mix (installment credit is a positive scoring factor), shortens your average account age, and reduces your total open credit. This is normal and temporary. The score usually recovers within 3–6 months. The long-term financial benefit of eliminating debt far outweighs this short-term scoring artefact.

Can a landlord credit check lower my credit score in Canada?

Yes, if the landlord runs a hard inquiry through Equifax, TransUnion, or a third-party rental screening service. A single hard inquiry reduces your score by approximately 5–10 points temporarily. If multiple landlords check you in a short period, the impact is slightly cumulative. Note that multiple mortgage or auto loan inquiries within 14–45 days are treated as a single inquiry by most scoring models (rate-shopping assumption), but this grouping does not apply to rental inquiries — each landlord check is counted separately.

What should I do immediately if my credit score dropped unexpectedly?

Pull your full credit report from both Equifax (equifax.ca) and TransUnion (transunion.ca) — not just your score, but the full report with account details. Compare your account list for new accounts you did not open, check every payment history line for incorrectly reported late payments, review the inquiries section for hard pulls you did not authorize (potential fraud), and check every balance and limit against what you expect. If you find an error, dispute it in writing with the bureau — they are required to investigate within 30 days. If you find an unauthorized inquiry or account, contact the lender and both bureaus immediately and consider placing a fraud alert on your file.

Why Did My Credit Score Drop? Common Reasons in Canada

A credit score drop feels alarming, but virtually every drop has a specific, identifiable cause visible on your credit report. In Canada, Equifax and TransUnion each maintain a separate score — they can differ by 10–30 points even with identical underlying data, and they use slightly different scoring models. When your score drops unexpectedly, the cause is almost always one of six things: a utilization spike, a hard inquiry, a missed payment, a credit limit reduction, a new account opening, or a credit report error. Identifying which one tells you both what happened and how long recovery will take. This article is part of the Canadian credit scores hub.

The most common cause by far — and the most misunderstood — is credit utilization. Your balance is reported to the bureaus on your statement closing date, not your payment due date. A large purchase made before your statement closes will show on your report as a high balance even if you pay the card in full the following week. This means your score can drop and recover within a single month without any actual financial problem. Knowing the timing of your statement close date is one of the most practical pieces of credit management knowledge available.

Score Impact by Cause

Cause	Typical Score Drop	Recovery Time
Hard inquiry (new credit application)	−5 to −10 points	6–12 months (inquiry on file 3–6 years)
New credit account opened	−5 to −20 points	12–24 months (average account age recovers slowly)
Credit utilization exceeds 30%	−20 to −50 points	1–2 billing cycles once balance paid down
Credit utilization exceeds 75%	−50 to −100 points	1–2 billing cycles
Credit limit reduced by issuer	−20 to −60 points	When limit is restored or balance paid down
First missed payment (30+ days late)	−50 to −100 points	2–3 years on file; 6 years on report
Second missed payment	Additional −30 to −60 points	3–5 years
Collection account registered	−50 to −150 points	6 years from date of last activity
Consumer proposal filed	−100 to −200 points	Equifax: 3 yrs after completion; TransUnion: up to 6 yrs
Bankruptcy filed	−150 to −240 points	Equifax: 6 yrs after discharge; TransUnion: up to 7 yrs
Closing an old credit card	−5 to −25 points	6–24 months
Paying off an installment loan	−5 to −15 points	3–6 months

The Six Most Common Causes

1. Credit Utilization Spike

Credit utilization — your balance divided by your credit limit — is the second most heavily weighted factor in your score after payment history. The bureaus receive your balance as of your statement closing date, not your payment due date. A large expense charged before your statement closes will appear on your report as a high balance even if you pay it off in full the following week.

On a $5,000 credit card, a $2,200 charge before your statement closes reports 44% utilization. Your score drops 30–50 points. You pay it off the next week. Your score recovers the following month when the new statement closes at a lower balance. No lasting damage — but the timing caught you.

The fix for recurring large purchases is a mid-cycle payment before your statement closing date, not just before the payment due date. Paying before the statement closes means the balance reported to the bureaus reflects the lower amount. If your spending regularly approaches your limit, a proactive credit limit increase request is worth considering before the issuer acts first.

2. Hard Inquiry from a Credit Application

Every application for new credit — credit card, car loan, mortgage, line of credit, phone plan on contract — generates a hard inquiry. Each hard inquiry reduces your score by 5–10 points and remains visible on your report for 3–6 years, though it stops affecting your score meaningfully after 12 months.

Hard Inquiries in 12 Months	Approximate Score Impact
1	−5 to −10 points
2–3	−10 to −20 points
4–6	−20 to −40 points
7+	Significant; signals credit-seeking behaviour to lenders

The exception to the per-inquiry rule is rate shopping: multiple mortgage or auto loan inquiries within 14–45 days are typically treated as a single inquiry by most scoring models, on the assumption that you are comparing rates for one purchase rather than seeking multiple new credit products. This grouping does not apply to credit card applications. See how long a hard inquiry stays on your credit for the full timeline.

3. Missed or Late Payment

A missed payment is the largest single-event score drop for most Canadians. Lenders typically report to the bureau after a payment is 30 days past due — meaning you usually have a short window after the due date to pay before it appears on your file. Once reported, it stays for 6 years.

Starting Score	Impact of One Missed Payment
800+	−100 to −140 points
750	−90 to −110 points
700	−60 to −80 points
650	−50 to −70 points
600	−30 to −50 points

The higher your score, the more you lose — because the scoring model penalizes the departure from your established pattern more severely. A borrower who has never missed a payment in ten years loses far more from a single miss than a borrower who has had previous lates.

4. Credit Limit Reduction by Your Issuer

If your lender reduces your credit card limit — which can happen during periodic account reviews, periods of economic stress, or prolonged card inactivity — your utilization ratio rises immediately even though your balance has not changed. On a $10,000 limit with a $2,500 balance (25% utilization), a reduction to $4,000 pushes utilization to 62.5%. A score drop of 30–60 points is common. See the credit limit decrease guide for how to appeal a reduction and prevent future ones.

5. New Account Reducing Average Account Age

When you open a new credit account, your average account age drops — a factor that scoring models weight positively for longer-established credit files. Three accounts aged 10, 7, and 5 years average 7.3 years. Opening a new account brings that average to 5.5 years. The score drop is typically 5–20 points and fades as the new account ages. This is not a reason to avoid opening accounts when you need them — the long-term credit mix benefit usually outweighs the temporary age reduction.

6. A Credit Report Error

Credit report errors are more common than most Canadians expect. Common examples include: accounts belonging to someone with a similar name appearing on your file; a paid collection still showing as outstanding; a closed account reported as open with a balance; duplicate accounts listed twice; or incorrect payment history on a legitimate account. If your score dropped and you cannot identify a specific action that caused it, pull your full report — not just the score — from both Equifax (equifax.ca) and TransUnion (transunion.ca). Bureaus are required to investigate disputes within 30 days under PIPEDA. The credit report dispute guide covers the process step by step.

How to Find the Cause

Step	What to Look For
1. Pull both full reports	equifax.ca and transunion.ca — the full report, not just the score
2. Check your account list	Did any new accounts appear that you did not open?
3. Check payment history	Is any account marked late that should not be?
4. Check balances and limits	Did any limit decrease? Did any balance report higher than expected?
5. Check the inquiries section	Were any hard inquiries added you do not recognize?
6. Compare to last month	What specifically changed between your last score and now?

An unauthorized hard inquiry or account you did not open is a potential fraud signal. Contact the lender listed on the inquiry and both bureaus immediately. Place a fraud alert on your file, which requires lenders to take additional verification steps before approving new credit in your name.