Why Did My Credit Score Drop? 7 Possible Reasons

A credit report document showing a credit score of 525 labeled as Poor, with a color scale indicating credit score ranges and a section detailing credit score grades. A red pencil rests on the page, and part of a computer keyboard is visible in the background.

You check your credit score and discover it’s dropped 30 points since last month. Your stomach sinks as you wonder what went wrong and how this happened without warning.

Credit scores drop for seven main reasons: late payments, high credit card balances, closed accounts, new credit applications, credit report errors, collection accounts, and changes in credit mix. The good news is that most credit score drops can be fixed once you understand what caused them. Blue Copper Capital helps clients navigate these challenges while providing transparent financial education throughout the lending process.

How Credit Scores Work & Why They Change

In Canada, credit scores usually range from 300 to 900 — higher numbers signal to lenders you’re less risky to work with. Five main factors determine your score: payment history (35%), credit utilzation (30%), length of credit history (15%), credit mix (10%), and new credit (10%).

Credit scores update monthly when lenders report your account information to credit bureaus. This means your score can change every month based on your financial activity. Small fluctuations of 5-10 points are completely normal and don’t signal any problems.

Late or Missed Payments Hit Your Score Hard

Payment history carries the most weight in your credit score calculation, making up about 35% of your score. Even one payment that’s 30 days late can cause a noticeable drop, especially if you previously had a strong credit score. The higher your score, the more significant the impact may be.

Creditors typically report late payments once they are at least 30 days overdue. A payment may be considered “late” by the lender right after the due date, but it won’t usually affect your credit score until it reaches that 30-day mark.

Late payments can come from more than just credit cards. Personal loans, auto loans, mortgages, and utility bills that go to collections can all show up on your credit report. Student loans and medical bills can also be reported as late if they aren’t managed properly.

High Balances Lower Your Score

Your credit usage ratio compares how much you owe to your total available credit limits. For example: if your total credit limit is $5,000 and your current balances are $4,000, your usage ratio is 80%, which may begin to negatively affect your credit score

Keeping your credit card balances below about 30% of your available limits is a helpful guideline for maintaining a healthy credit score. When balances get too high, it can signal to lenders that you may be relying heavily on credit, even if you’re making every payment on time.

Credit card issuers usually report the balance as of the statement closing date, not the payment due date. That means a large purchase shortly before your statement closes can temporarily increase your usage ratio — and your score drop may show up before you pay it off. The good news: once your balance is reduced, the lower usage ratio often gets reflected in your credit score in the following 30–60 days, depending on when your accounts are reported.

A credit score gauge chart showing ranges from poor to excellent, with color segments from red to green and a pointer indicating the score zone.

Does Afterpay Affect Credit Score?

Most buy now, pay later services like Afterpay don’t report your payment activity to credit bureaus during normal use. This means on-time payments won’t help your credit score, but regular use won’t hurt it either.

However, missed payments can still damage your credit if the account gets sent to collections. Some newer services are beginning to report positive payment history, so policies may change over time. 

Defaulted Afterpay accounts that get sold to collection agencies will appear on your credit report and drop your score significantly. Multiple applications for different buy now, pay later services in a short time can also create several hard inquiries.

Read the terms carefully before signing up for any buy now, pay later service. Policies can change, and services might start reporting to credit bureaus without much notice to users. This will potentially affect utilization on credit bureaus if guidelines shift and all buy now, pay later services are reported.

How to Improve Credit Score

Start by making all your payments on time moving forward. This stops further damage and begins rebuilding your payment history. Pay down credit card balances below 30% of your limits, and aim for under 10% for faster improvements.

Set up automatic payments for at least the minimum amounts due to avoid accidental late payments. Keep lines of credit and credit cards open even if you don’t use them regularly, as they help maintain your credit history length.

Monitor your credit report monthly to catch errors or identity theft early. Avoid applying for and opening multiple new accounts unless absolutely necessary, as each application creates temporary score drops.

Consider asking family members to add you as an authorized user on their accounts with good payment history. Keep existing accounts active with small purchases every few months to prevent closures due to inactivity.

Practical Help for Improving Your Credit

Credit score drops can feel overwhelming, but most causes have clear solutions once you understand what’s behind them. At Blue Copper Capital, we provide flexible loan options and straightforward guidance to help you rebuild your credit with confidence.

Our people-first approach and licensed alternative lending services give you the support you need as you navigate your financial goals. Speak with our team today to see how we can help you move forward while you work on improving your credit.

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