1. Late Payments
Payment history accounts for approximately 35% of your FICO score — making it the single most influential factor. Even one late payment of 30 days or more can drop your score by 60–100 points, and it stays on your report for seven years.
How to fix it: Set up autopay for at least the minimum payment on all accounts. If you have a recent late payment and otherwise good history, call your creditor and ask for a goodwill removal — many will accommodate loyal customers. For inaccurately reported late payments, dispute them through the credit bureaus.
2. High Credit Utilization
Credit utilization — the percentage of available credit you're using — is the second biggest factor at roughly 30% of your score. Using more than 30% of your available credit signals risk to lenders. Ideally, keep utilization below 10% for the best scores.
How to fix it: Pay down balances strategically, starting with cards closest to their limits. Request credit limit increases (without a hard pull when possible). Spread balances across multiple cards rather than maxing one out. Consider making payments twice per month to keep reported balances low.
3. Collection Accounts
When a debt goes to collections, it creates a separate negative entry on your credit report that can persist for seven years from the date of first delinquency. Even small medical collections can significantly impact your score.
How to fix it: Check if the collection is accurate and within the statute of limitations. Dispute any errors — incorrect amounts, wrong dates, accounts that aren't yours. For legitimate collections, consider negotiating a "pay-for-delete" agreement where the collector removes the account after payment. Note: newer FICO models (FICO 9 and 10) give less weight to paid collections and ignore medical collections under 00.
4. Hard Inquiries
Each time you apply for credit and a lender checks your report, a hard inquiry is recorded. Each inquiry can lower your score by 5–10 points and remains on your report for two years. Multiple inquiries in a short period (outside of rate-shopping windows) suggest financial distress to scoring models.
How to fix it: Be strategic about applying for new credit — only when you genuinely need it. When shopping for mortgages, auto loans, or student loans, do so within a 14–45 day window, as multiple inquiries for the same type of credit are typically grouped as one. Dispute any unauthorized inquiries that appear on your report.
5. Thin Credit File
If you have few accounts or a short credit history, you have what's called a "thin file." Limited data makes it harder for scoring models to assess your creditworthiness, often resulting in lower scores even if your existing accounts are in good standing.
How to fix it: Consider a secured credit card, which requires a deposit and reports to all three bureaus. Look into credit-builder loans offered by credit unions and online lenders. Ask a trusted family member to add you as an authorized user on an older, well-managed account. Services like Experian Boost can add utility and streaming payments to your report.
The Bottom Line
Most credit score damage comes from these five factors. The good news? Every one of them can be improved with the right strategy and patience. If you're not sure where to start, a free credit audit can identify exactly what's dragging your score down and create a prioritized action plan.