A credit score below 670 qualifies you for subprime rates on a mortgage. A score of 760 or above gets the best available rate. On a $300,000 loan, the difference between those two tiers adds up to tens of thousands of dollars in extra interest over 30 years. If your score is sitting somewhere in the middle and you're not sure why it won't move, something on this list is probably the reason.
Most of the common advice holds: pay on time, keep your balance below 30% of your credit limit, don't open a bunch of new accounts at once. But other factors work differently. Some are habits that feel completely responsible. Some stem from recent changes to how credit systems work. None are obvious until you know to look.
Closing a credit card you just paid off
Paying off a card feels like progress, and closing it feels like the next logical step. The problem is that closing a card reduces your total available credit immediately, which pushes up your utilization ratio across all your remaining accounts even if your spending hasn't changed. Utilization accounts for 30% of your FICO score, making it one of the biggest levers in either direction.
There's a secondary effect if the card you closed was one of your oldest. Closed accounts do stay on your credit report for up to 10 years, so you don't lose the payment history overnight. But your total available credit shrinks the moment the account closes, and that change hits the bureaus in the next reporting cycle. Scores can drop by 40 points or more when a long-standing card is closed, particularly if it represented a significant chunk of your total credit limit.
The fix: keep paid-off cards open and active. Put a small recurring charge on them, a streaming service or a monthly subscription works well, and set up autopay. The account stays current, your available credit stays intact, and the card keeps aging in your favor. If you're worried about an annual fee, call the issuer and ask to downgrade to a no-fee version of the same card rather than closing it outright.
Paying your credit card bill after the statement closes
Credit card issuers report your balance to the three major credit bureaus shortly after the statement closing date, not on your due date. Your due date typically falls three weeks after the statement closes. If you wait until the due date to pay, the bureaus have already recorded whatever balance you were carrying when the statement was generated. That balance is what determines your utilization rate for that cycle.
Here's how it plays out in practice: you have a $5,000 credit limit and carry a $3,000 balance at statement close. Your reported utilization is 60%. You pay the full amount by the due date and feel good about it. But the bureaus saw 60% when the statement closed, and that's what factors into your score. Over time, consistently high reported balances keep scores lower than people expect even when they always pay in full.
The fix: find your statement closing date, usually labeled in your account dashboard, and pay your balance down before that date rather than just by the due date. Getting below 10% of your credit limit before the statement closes is what actually moves your score. If you tend to make large purchases early in the billing cycle, consider a mid-cycle payment to bring the balance down before it gets reported.
Small bills that quietly go to collections
A $50 unpaid gym cancellation fee doesn't feel like a debt. Neither does a final cell phone bill from a carrier you left two years ago, or a parking ticket that got buried and forgotten. None of these show up on your credit report directly. But once a business sells the debt to a collection agency and the agency reports it to the bureaus, it shows up as a collection account and can stay on your report for seven years.
The threshold that determines whether it damages your score is $100. Most modern scoring models ignore collection accounts below that amount. But fees accumulate: a $35 parking ticket can reach $90 after administrative penalties, and a final phone bill with early termination fees can exceed $100 before you've given it a second thought. A single collection account can drop a score by 50 to 100 points depending on where you started.
The fix: when you cancel any subscription, service, or account, request a final statement and confirm the balance is zero. Check your credit reports at AnnualCreditReport.com regularly; they're free and can now be accessed weekly. If you find a collection account from a civil or municipal debt, contact the agency and ask whether they'll do a “pay for delete,” which removes the account from your report when you settle the balance.
Medical debt still on credit reports after the federal rule fell through
In January 2025, the Consumer Financial Protection Bureau finalized a rule that would have removed medical bills from credit reports for roughly 15 million Americans and erased nearly $49 billion in medical debt from credit files. A federal court vacated that rule in July 2025. Medical bills over $500 that are more than a year old can still appear on credit reports in most states.
Some protections remain in place. In 2022, the three major credit bureaus voluntarily stopped reporting paid medical debt, collections under $500, and medical collections less than 12 months old. Those changes are still in effect. But large unpaid medical bills that fall outside those parameters are still being reported. Because medical debt often results from billing disputes, insurance delays, or surprise charges rather than financial irresponsibility, many people have collections on their report for amounts they didn't even know they owed.
The fix: check your report specifically for medical collection accounts. Fifteen states have passed their own laws banning medical debt from credit reports; if you're in one of those states and see medical debt on your report, you can dispute it regardless of the amount. If a medical collection is less than a year old or under $500, it should not be appearing regardless of where you live, and you can dispute it directly with the bureau. Pull all three of your reports for free at AnnualCreditReport.com.
Buy Now, Pay Later missed payments
For years, Buy Now, Pay Later loans were invisible to credit bureaus. You could split a $400 purchase into four payments, miss two of them, and your score wouldn't register a thing. That changed when FICO launched new scoring models incorporating BNPL data in fall 2025. Lenders are beginning to adopt them, which means a missed BNPL payment now affects your score the same way a missed credit card payment would.
The habit is easy to develop. BNPL checkout flows are frictionless, they often don't involve a hard credit pull, and they historically had no credit consequences. But nearly 41% of BNPL users made at least one late payment in the past year. Under the new models, those late payments feed directly into payment history. Multiple open BNPL plans at once can also reduce your average account age, since each new plan registers as a new credit account.
The fix: treat BNPL the same way you'd treat a credit card. Set up automatic payments on every plan to avoid missing a due date. Limit how many open BNPL loans you carry at once, since stacking several in a short window looks like rapid new credit to scoring models. Check your credit report to see which of your BNPL providers are now reporting to the bureaus, since reporting is still inconsistent across providers.
Co-signing a loan for someone
Co-signing a loan is legally the same as taking it out yourself. The full debt balance appears on your credit report, which affects your debt-to-income ratio and can make it harder to qualify for your own credit. But the more immediate risk is what happens when the primary borrower misses a payment. Any delinquency hits your credit report the same way it would if you were the borrower, because as far as the lender is concerned, you are equally responsible.
You have no control over the other person's payment behavior once you've signed. If they fall 90 days behind, that's a 90-day delinquency on your credit history. If the loan defaults, you're on the hook for the balance and your score takes the full fallout. Relationships change and finances change, and you're left with someone else's financial decisions permanently attached to your record.
The fix: before co-signing, ask yourself whether you could comfortably pay that loan yourself if the other person stops. If the answer is no, decline. If you're already a co-signer and concerned about the borrower's reliability, ask the lender whether you can set up account alerts so a missed payment doesn't catch you off guard. Getting yourself removed as a co-signer typically requires the primary borrower to refinance the loan in their own name, which requires their active cooperation.
Errors on your credit report that you never found
27% of people who checked their credit reports in a 2024 study found at least one error significant enough to affect their score. Common problems include payments marked as late that were made on time, accounts belonging to someone with a similar name, debts that were discharged but still appear as active, and collection accounts that should have been removed years ago. None of these go away on their own.
Disputing errors has also become harder in practice. In 2025, the rate at which Experian resolved consumer credit report complaints in the consumer's favor dropped from 20% in 2024 to under 1%, with TransUnion's resolution rate falling by roughly half over the same period. The CFPB received nearly five million credit reporting complaints in 2025, up dramatically from prior years, with incorrect information being the single most common issue.
The fix: pull your reports from all three bureaus at AnnualCreditReport.com and go through them carefully. They're free and can be checked weekly. File disputes directly with the bureau reporting the error, not just the creditor, and document everything in writing. If the bureau doesn't resolve the dispute, file a formal complaint through the CFPB's complaint portal; a filed complaint often prompts a faster response than disputing with the bureau alone.
Being an authorized user on someone else's problem account
Being added as an authorized user on a family member's or partner's credit card can be an effective way to build credit. Their payment history, account age, and available credit all show up on your report as if the account were partially yours. But that works in both directions. If they start missing payments, run the card close to its limit, or have the account closed for delinquency, those negative marks attach to your report just as quickly.
This situation comes up most often when relationships change. A parent adds an adult child to an old card as a favor. A couple shares a card and one partner stops paying. Someone's financial situation deteriorates and the authorized user, who has no ability to compel the account holder to manage it responsibly, ends up absorbing the damage.
The fix: if you're an authorized user on an account where the primary cardholder is struggling, call the card issuer directly and ask to be removed. You can typically do this without the primary cardholder's involvement. Once removed, the account history usually falls off your report within one or two billing cycles. If you were benefiting from that account's long positive history, plan to build your own credit through a secured card or credit builder loan before making the change.
Applying for store credit cards at the register
A 20% discount at checkout is tempting, but the application generates a hard inquiry on your credit report. One hard inquiry typically reduces a score by a few points and stays on the report for two years. That's not catastrophic in isolation. But people who accept store card offers at multiple retailers in the same season can accumulate several inquiries in a few months, and each one compounds the effect.
There's a second hit: each new store card is also a new account, which lowers your average account age. Account age is 15% of your FICO score, and a lower average age means a lower score even if you handle the new accounts responsibly. A $50 discount for one card is generally fine. Three or four cards opened in six months can cost more in score damage than you saved at the register, particularly if you're planning to apply for a car loan or mortgage soon.
The fix: if you're a regular at a particular store and the card offers ongoing rewards beyond the signup discount, applying for one can make financial sense. But make that decision deliberately rather than at the register in the moment. Don't apply for multiple cards in the same period, and if you're planning any major credit application in the next six to twelve months, skip new credit entirely during that window.
Letting a credit card go inactive until the issuer closes it
Card issuers can close accounts that haven't been used for 12 to 24 months, sometimes sooner, because inactive accounts generate no interchange revenue. When they do, the effect on your credit is the same as if you had closed it yourself: total available credit drops, utilization climbs if you're carrying balances elsewhere, and if it was one of your older accounts, your average account age shrinks.
This happens most often to people who are trying to simplify their finances. They pay off a card, set it aside, and forget about it. The issuer reviews the account at some point, finds no activity, and closes it. The first notice many people get is when they check their credit report and see the account listed as “closed by creditor,” which can raise a flag for future lenders since it implies the closure wasn't the cardholder's choice.
The fix: for any card you want to keep open, put a small recurring charge on it. A monthly subscription works well. Pair it with autopay so the card covers itself each month, you never carry a balance, and the account stays active indefinitely. A card that charges no annual fee, has been open for years, and requires almost no effort to maintain is worth keeping.
Making only the minimum payment each month
The minimum payment keeps the account technically current, which is better than missing it. But it doesn't help your score much if you're carrying a high balance. Utilization is calculated on the balance reported at your statement closing date, not on whether you've made the required payment. A card with a $10,000 limit and a $6,500 balance that you're paying the minimum on shows 65% utilization every month, which consistently depresses your score even though you're never delinquent.
The interest math compounds the problem. If you're paying 24% APR and making minimum payments on a $5,000 balance, the balance moves very little each month while interest accumulates. The debt can take years to clear, and your credit score reflects elevated utilization the entire time. Being technically current while carrying a high balance is not the same as managing credit well, and scoring models treat it accordingly.
The fix: pay more than the minimum whenever possible. Even an extra $50 to $100 per month meaningfully accelerates payoff and brings your utilization down faster. If you're managing multiple cards, put extra payments toward whichever card is closest to its limit first. A balance drop from 65% to below 30% on a single card can move your score within one or two reporting cycles.
Having a thin or one-dimensional credit mix
Credit mix accounts for 10% of your FICO score, so it's easy to dismiss. But if your entire credit history consists of revolving accounts like credit cards with no installment debt at all, you may be leaving points on the table. Scoring models view a consumer who has responsibly managed both revolving credit and installment loans, such as car loans, personal loans, or mortgages, as less of a risk than someone who has only ever handled one type.
The reverse also surprises people: when you pay off your only installment loan, your credit mix narrows and your score can dip temporarily. Someone who just paid off their car loan and feels good about it may notice their score drop 5 to 10 points that same month. The account is closed, the diversity is reduced, and the scoring model notices. The drop is usually temporary, but it catches people off guard.
The fix: you don't need to take on unnecessary debt to round out your credit mix. But if you're already planning to finance something, knowing that an installment loan strengthens your mix is useful context. Credit builder loans offered through many credit unions are designed for this purpose specifically; you make payments into a savings account and get the funds back when the loan is paid, ending up with a stronger credit profile and a small savings cushion.
Federal student loan delinquencies now showing up on credit reports
During the pandemic, federal student loan payments were paused and missed payments weren't reported to credit bureaus. When payments resumed in 2023, the Biden administration added a 12-month grace period through September 30, 2024, during which late payments still wouldn't be reported. That grace period is over. As of early 2025, federal student loan delinquencies are being reported to the bureaus, and the average national credit score dipped as late payments accumulated.
People who thought they were still covered aren't necessarily. Some enrolled in income-driven repayment plans but got caught in processing backlogs with their servicers. Others simply didn't realize the protection had ended. A 90-day delinquency on a student loan is treated the same as a 90-day delinquency on any other debt, and it can drop a score by 100 points or more. Those marks stay on a credit report for seven years from the date of the first missed payment.
The fix: log in at studentaid.gov and check your loan status. If your loans are showing as delinquent, contact your servicer immediately. Income-driven repayment plans can set your monthly payment as low as $0 if your income qualifies, which allows you to stay current without necessarily paying anything. Getting into any repayment plan stops the delinquency from accumulating further and begins the recovery.
Opening new credit accounts in the months before a major loan application
Every credit card or loan application generates a hard inquiry on your credit report. A single inquiry typically reduces your score by fewer than five points. That sounds minor, but the timing matters. If you're planning to apply for a mortgage or car loan, a lower score at the moment of that application can mean a higher interest rate, a reduced borrowing limit, or outright rejection. Lenders often pull credit within days of a formal application, and recent inquiries are fully visible.
New accounts also lower your average account age. And unlike mortgage or auto loan shopping, where multiple inquiries within a 14 to 45-day window are generally treated as a single inquiry by most scoring models, credit card applications don't get that same protection. Each one is its own separate hard inquiry. Opening two credit cards and a personal loan in the months before applying for a home loan can take your score down 15 to 25 points precisely when it matters most.
The fix: if you're planning to apply for a mortgage, car loan, or any other major credit product in the next six to twelve months, stop opening new credit accounts during that period. No store cards, no new credit cards, no personal loans. Let your existing accounts age, your utilization stabilize, and your score settle before the lender pulls your credit.
A small balance left on an account you thought was paid off
When you make what feels like a final payment on a credit card, interest sometimes continues to accrue after that payment posts. The billing cycle doesn't stop the moment you pay. The issuer generates a statement the following month showing a small amount due, and if you've mentally closed the account and stopped looking at it, the balance sits there. If it goes 30 days past due, it gets reported to the bureaus as a delinquency, and at 30 days late, it counts as a real one.
This happens more often than people realize. Someone pays off a card, sees a zero balance in the app, assumes the account is clear, and moves on. A statement arrives showing $4 or $8 in accrued interest. Nobody notices. A few weeks later it's past due. Several months later they're trying to figure out why a delinquency appeared from a card they haven't touched in a year.
The fix: when paying off any credit card, call the issuer and ask for the exact payoff amount as of that day, including any accrued interest. Pay that figure, not just the balance the app shows. Check the account again about a month later to confirm the balance is zero and the account is current. If you're planning to close the card, do it after you have written confirmation of a zero balance.
