Late payments, high balances, and new credit applications are the most common actions that drag down your credit score. Your FICO score, the model used in most lending decisions, is built from five categories of credit data, and problems in any of them can cost you points. Understanding exactly what hurts, and how much, puts you in a better position to protect your score or rebuild it.
How Your Score Is Weighted
FICO scores are calculated from five categories, each carrying a different weight: payment history (35%), amounts owed (30%), length of credit history (15%), new credit (10%), and credit mix (10%). The first two categories alone account for nearly two-thirds of your score, which means missed payments and high balances do the most damage. The remaining three matter, but their impact is smaller and more gradual.
Late and Missed Payments
Payment history is the single largest factor in your score, at 35%. Even one payment that’s 30 or more days late can cause a noticeable drop, and the later it gets, the worse the damage. A payment reported as 60 or 90 days past due hurts more than one that’s 30 days late, and accounts that go to collections or charge-off status are among the most damaging entries you can have.
The timing matters too. A recent late payment stings more than one from several years ago, because scoring models weigh recent behavior more heavily. But the mark doesn’t disappear quickly. Negative payment information can remain on your credit report for up to seven years, according to the Consumer Financial Protection Bureau. Over that time the impact fades, especially if you build a consistent record of on-time payments afterward, but it never fully stops counting until it drops off the report entirely.
Bankruptcies are the most severe negative entry and can stay on your report for up to ten years. Foreclosures, repossessions, and accounts sent to collections generally follow the seven-year rule.
Carrying High Balances
Amounts owed make up 30% of your score, and the key metric here is your credit utilization ratio: the percentage of your available credit you’re currently using. If you have a credit card with a $10,000 limit and a $7,000 balance, your utilization on that card is 70%, which is high enough to pull your score down significantly. Scoring models look at utilization on individual cards and across all your revolving accounts combined.
There’s no official cutoff, but borrowers with the highest scores tend to keep utilization below 30%, and single-digit utilization is even better. The good news is that utilization has no memory. Unlike late payments, which linger for years, your utilization updates every time your card issuer reports your balance. Pay down a high balance and your score can improve within a billing cycle or two.
Maxing out a card, even if you pay it off in full by the due date, can still temporarily hurt your score if the issuer reports the balance before your payment posts. Most issuers report balances on or near the statement closing date, not the payment due date.
Closing Old Credit Cards
Closing a credit card can hurt your score in two ways. First, it reduces your total available credit, which pushes your utilization ratio higher if you carry balances on other cards. If you close a card with a $5,000 limit and your other cards have $15,000 in combined limits with $6,000 in balances, your utilization jumps from 30% to 40% overnight.
Second, if the closed card is one of your oldest accounts, it can eventually shorten your average account age once it falls off your report, which affects the length of credit history category (15% of your score). Closed accounts in good standing can remain on your report for up to ten years, so the age impact isn’t immediate, but it does arrive eventually. Keeping older cards open, even if you rarely use them, is generally better for your score.
Applying for New Credit
Every time you apply for a credit card, loan, or line of credit, the lender pulls your credit report, creating what’s called a hard inquiry. Each hard inquiry typically costs fewer than five points, according to FICO. That sounds minor, but multiple applications in a short period can add up and signal to lenders that you’re in financial distress or taking on too much new debt.
There’s an important exception for rate shopping. If you’re comparing mortgage, auto loan, or student loan offers from multiple lenders, FICO groups those inquiries together and counts them as a single inquiry, as long as they happen within a 14 to 45 day window depending on the scoring version being used. This means you can shop around for the best rate without compounding the damage. Credit card applications don’t get this same treatment, so spacing those out is smarter.
New credit also lowers the average age of your accounts. Opening several cards in a short span can make your credit profile look young and thin, which works against the length of credit history category.
Collections and Public Records
An account that goes to collections is one of the most damaging items on a credit report. It signals that a creditor gave up trying to collect from you and sold or assigned the debt to a third party. Even a small unpaid bill, like an old utility or medical balance, can end up in collections and cause a significant score drop.
Medical debt has been a moving target in recent years. The three major credit bureaus voluntarily removed paid medical collections and stopped reporting medical collections under $500 in 2023. The CFPB finalized a rule in 2024 that would have gone further by removing medical bills from credit reports entirely, but a federal court vacated that rule in July 2025. Under current law, medical debt can still appear on your credit report as long as it doesn’t identify the specific provider or the nature of the medical services.
Using Only One Type of Credit
Credit mix accounts for 10% of your score. Scoring models like to see that you can manage different types of credit, such as revolving accounts (credit cards) and installment loans (auto loans, mortgages, student loans). If your entire credit profile is made up of credit cards with no installment loan history, your score may be slightly lower than it would be with a more varied mix.
This doesn’t mean you should take out a loan just to diversify. The impact is relatively small, and paying interest on a loan you don’t need isn’t worth a minor score bump. But if you’re wondering why your score isn’t higher despite on-time payments and low balances, a thin credit mix could be one factor.
Things That Don’t Hurt Your Score
A few common worries aren’t actually score killers. Checking your own credit report or score is a soft inquiry, not a hard one, and has zero impact. Your income, employment status, and bank account balances aren’t part of credit scoring models at all. Debit card usage doesn’t show up on your credit report either, so it can’t help or hurt you.
Carrying a balance from month to month doesn’t help your score compared to paying in full. This is one of the most persistent misconceptions. You build a positive payment history by making on-time payments, regardless of whether you pay the full statement balance or just the minimum. The difference is that carrying a balance costs you interest while also raising your utilization ratio.