The most common reasons your score fell

Your credit score drops when you miss a payment, carry high balances on credit cards, or apply for new credit in a short time. Each of these sends a signal to the scoring model that you are a higher risk to lenders. The three major credit bureaus — Equifax, Experian, and TransUnion — track these behaviours and feed them into the formulas that produce your score.

A single late payment can lower your score by 50 to 100 points, depending on how late it was and what your score was before. A payment 30 days overdue hurts less than one 90 days overdue. Maxing out a credit card can drop your score 10 to 45 points because it raises your credit utilisation ratio — the percentage of your available credit you are actually using.

Sometimes the drop has nothing to do with your own behaviour. A hard inquiry (when a lender checks your credit to decide whether to lend to you) can lower your score by a few points. Opening a new account does the same. These effects are temporary and fade over time, but they are real.

Key Takeaways

  • Late payments cause the largest drops, with 90+ days overdue doing more damage than 30 days overdue.
  • High credit card balances lower your score even if you pay on time, because they raise your utilisation ratio above 30 percent.
  • Hard inquiries and new accounts cause small temporary drops that recover within months if you stay current on payments.
  • Errors on your credit report — accounts that are not yours, wrong payment dates, or duplicate entries — can lower your score and are worth disputing.
  • Your score can also drop if an old negative item (like a late payment from years ago) is being reported again by mistake.

How payment history affects your score the most

Payment history makes up about 35 percent of your credit score, so it is the single largest factor. This includes whether you paid on time, how late you were, and how many times you were late. A payment reported as 30 days late stays on your report for seven years, but its impact weakens over time — a late payment from five years ago hurts less than one from last month.

If you missed a payment but caught up within 30 days, it may not have been reported to the bureaus yet. Most lenders do not report a payment as late until it is 30 days overdue. If you are currently 15 or 20 days late, you still have time to pay before it hits your credit report. Once it is reported, the damage is done, but paying it off stops it from getting worse.

Collections accounts and charge-offs (when a lender gives up trying to collect and writes the debt off their books) cause much larger drops than a single late payment. These stay on your report for seven years as well, but they signal to future lenders that you stopped paying altogether.

Credit card balances and utilisation ratio

Your credit utilisation ratio is the total amount you owe on all credit cards divided by your total credit limits. If you have three cards with $5,000 limits each ($15,000 total) and you owe $9,000 across them, your utilisation is 60 percent. Scoring models prefer to see this ratio below 30 percent, and ideally below 10 percent.

Raising your utilisation from 20 percent to 60 percent can drop your score 20 to 40 points, even if you made every payment on time. This is because high utilisation suggests you are financially stretched. The good news is that this effect reverses quickly — as soon as you pay down the balance, your score begins to recover. Unlike a late payment, which stays on your report for years, a high utilisation only matters while it is happening.

Some people see their score drop after paying off a large balance. This is usually because the account closed or the card issuer lowered their credit limit. Both reduce your total available credit, which raises your utilisation ratio even though you owe less money. If this happens, you can ask the card issuer to reopen the account or raise your limit.

Hard inquiries and new accounts

When you apply for a credit card, mortgage, car loan, or other credit product, the lender performs a hard inquiry — they pull your full credit report to decide whether to lend to you. Each hard inquiry can lower your score by a few points. Multiple hard inquiries in a short time (within 14 to 45 days, depending on the scoring model) usually count as a single inquiry, so shopping for a mortgage or car loan does not hurt as much as applying for five different credit cards.

Opening a new account also lowers your score slightly because it reduces your average account age. If you have had credit for 10 years and you open a new card, your average age drops. This effect is small and temporary — it fades as the new account ages.

Hard inquiries and new accounts together account for about 10 percent of your score. The damage is real but minor compared to late payments or high balances. Both effects fade within a few months if you stay current on all payments.

Errors on your credit report

Sometimes your score drops because of a mistake, not because of something you did. A late payment that was not actually late, an account opened in your name that is not yours, a duplicate entry, or a payment date recorded wrong can all lower your score unfairly. These errors are more common than most people realise — studies suggest roughly one in four credit reports contains an error significant enough to affect the score.

You can check your own credit report for free once per year from each bureau at annualcreditreport.com. This is the only official site where you can get your report without paying. Look for accounts you do not recognise, payment dates that are wrong, balances that do not match what you owe, and duplicate entries.

If you find an error, you can dispute it with the bureau that reported it. Send a letter (not an email) to the bureau's dispute address, include a copy of the proof that the information is wrong, and keep a copy for yourself. The bureau must investigate within 30 days and remove the error if they cannot verify it. Disputing an error does not lower your score further — it is free and worth doing.

Old negative items being reported again

Occasionally a score drops because an old negative item — a late payment, collection account, or charge-off from years ago — is being reported to the bureaus again. This can happen if a debt collector bought the debt and is now reporting it, if the original creditor is re-reporting it by mistake, or if the item is simply being updated on your report as it ages.

A late payment from seven years ago should fall off your report entirely. If it is still showing up and being updated, it may be resetting the clock on when it will disappear. This is illegal under the Fair Credit Reporting Act. If you see an old negative item that should have aged off, dispute it with the bureau and include a note that the item is older than seven years.

If a debt collector is reporting an old debt, you can also send them a written request to stop reporting it. Keep records of everything you send and receive, because you may need proof if the item does not disappear.

Frequently Asked Questions

How long does it take for my score to recover after I pay off a late payment?

The late payment stays on your report for seven years, but its impact on your score weakens significantly within 6 to 12 months of paying it off. The most recent late payments hurt the most. If you have other on-time payments after the late one, your score recovers faster. Paying off the debt itself does not remove the late mark, but it stops the damage from getting worse.

Will my score go back up if I pay down my credit card balance?

Yes, usually within one or two billing cycles. Once your card issuer reports the lower balance to the bureaus, your utilisation ratio drops and your score rises. This effect is faster than almost any other credit repair because utilisation is calculated fresh each month, unlike late payments which stay on your report for years.

Can I remove a hard inquiry from my credit report?

Hard inquiries stay on your report for two years, but they stop affecting your score after about 12 months. You cannot remove a hard inquiry you authorised, but you can dispute one you did not authorise (which would be fraud). If a lender pulled your credit without permission, dispute it with the bureau and report it to the Federal Trade Commission.

What should I do if I see an account on my credit report that is not mine?

Dispute it immediately with the bureau that is reporting it. Send a letter to their dispute address with a copy of your credit report and a note explaining that the account is not yours. Include any proof you have (like a statement showing you were not the applicant). The bureau must investigate within 30 days. If the account is fraudulent, also file a report with the Federal Trade Commission at identitytheft.gov.

Does checking my own credit score lower it?

No. Checking your own credit report or score is a soft inquiry and does not affect your score at all. Only hard inquiries from lenders lower your score. You can check your score as often as you want without any penalty.