Some of these are well known. Others catch people off guard — closing an old card, co-signing for a family member, or even checking your score the wrong way. Here are 15 things that can quietly work against your credit score.
| # | What Hurts Your Score | Why |
|---|---|---|
| 1 | Late or missed payments | The single largest factor at 35% of your score — even one 30-day late payment leaves a mark |
| 2 | High credit utilization | Using more than 30% of your available revolving credit signals higher risk |
| 3 | Maxing out a single card | Even if your overall utilization is fine, one maxed-out card can hurt more than the average suggests |
| 4 | Closing your oldest credit card | Shortens your average account age and can remove your longest credit history once it drops off |
| 5 | Applying for several accounts in a short window | Each hard inquiry has a small cost, but stacking several signals elevated risk |
| 6 | Co-signing a loan | The debt appears on your report exactly as if it were yours — if the primary borrower misses payments, your score takes the hit too |
| 7 | Settling a debt for less than owed | Often reported as "settled" rather than "paid in full," which can read as a negative mark even though the debt is resolved |
| 8 | Letting a collection account go unaddressed | Collections are among the most damaging marks and remain on your report for up to 7 years |
| 9 | Having too few open accounts | A thin credit file limits how much positive history can be built, which caps your score potential |
| 10 | Requesting a credit limit decrease | Lowering your limit while your balance stays the same immediately raises your utilization percentage |
| 11 | Missing a payment on a small or forgotten account | A $20 forgotten subscription that goes to collections can hurt as much as a large unpaid balance |
| 12 | Opening several store credit cards at once | Each is a new account and a new inquiry, and most carry lower limits that raise utilization risk |
| 13 | Bankruptcy | The most severe negative mark possible, remaining on your report for 7-10 years depending on the chapter filed |
| 14 | Identity theft left undisputed | Fraudulent accounts and inquiries you never authorized still count against you until formally disputed and removed |
| 15 | Ignoring your credit report entirely | Errors are common and can sit undetected for years, quietly suppressing your score with no way to know unless you check |
The Good News
Almost everything on this list is reversible or manageable with the right approach. Utilization can improve within a single billing cycle. Errors and unauthorized items can be disputed and removed. Even collections and late payments fade in impact over time and eventually fall off your report entirely.
Think you have an error or unauthorized item? See the Credit Dispute Guide for the complete playbook on collections, charge-offs, identity theft, and more. For inquiries specifically, see How to Remove Hard Inquiries.
Want this handled for you? CreditShiftrr identifies disputable items across all three bureaus and builds your action plan automatically. Learn about CreditShiftrr →
