Credit
Understanding Your Credit Score: What Affects It and How to Improve It
What a credit score is, and what it is not
A credit score is a three-digit number that estimates how likely you are to repay borrowed money on time. In the U.S., the most widely used scoring models, FICO and VantageScore, generally use a range of 300 to 850. Lenders, card issuers, landlords and some insurers may use a score when deciding whether to approve you and what rate or deposit to charge.
Your score is calculated from the information in your credit reports at Equifax, Experian and TransUnion. It does not include your income, savings, checking balance, job title or net worth. Someone earning $45,000 a year can have an excellent score, and someone earning $200,000 can have a poor one. What matters is how you have handled credit.
You also do not have one single score. There are many scoring models and versions, and each bureau may hold slightly different data. That is why the number in your banking app may not match the score a mortgage lender pulls. Focus on the direction and the underlying habits rather than chasing one exact number.
What makes up your score
FICO publishes the general weight of each category in its scores. The exact formula is proprietary, but the categories explain where your effort has the most impact.
| Factor | Approximate weight | What it measures |
|---|---|---|
| Payment history | 35% | Whether you pay on time, and how late, how often and how recently any missed payments happened. |
| Amounts owed | 30% | How much of your available revolving credit you are using, known as credit utilization, plus balances on loans. |
| Length of credit history | 15% | The age of your oldest account, newest account and the average age of all accounts. |
| New credit | 10% | Recent applications and newly opened accounts. |
| Credit mix | 10% | Whether you have experience with different types of credit, such as cards and installment loans. |
Two factors, payment history and amounts owed, account for about two-thirds of the score. For most people, that is where improvement starts.
Payment history: protect it first
A payment is generally reported as late only once it is 30 or more days past due. A payment that is five days late may cost a late fee, but it usually does not reach your credit report. Once a 30-day late payment is reported, it can stay on your report for up to seven years, although its effect on your score fades as it ages and newer on-time payments build up.
The simplest protection is to set up automatic payments for at least the minimum due on every card and loan. You can still pay more manually, but autopay makes a forgotten due date much less likely to become a credit problem. If you ever expect to miss a payment, call the lender before the due date. Many offer hardship options or a one-time due date change.
Credit utilization: the fastest lever
Credit utilization is your revolving balances divided by your credit limits. It is calculated both across all cards and on each card individually. Suppose you have two cards with limits of $5,000 and $3,000, for $8,000 in total. If the balances are $1,900 and $500, your overall utilization is $2,400 divided by $8,000, or 30%. Paying the balances down to $800 in total brings utilization to 10%.
There is no official cutoff, but lower is generally better, and people with the highest scores often use less than 10% of their available credit. One detail surprises many people: the balance reported to the bureaus is usually the statement balance, not the balance after you pay. If you use a card heavily and pay it in full after the statement arrives, your reported utilization can still look high. Making a payment a few days before the statement closing date lowers the reported balance.
Because utilization reflects only your most recent reported balances, improvements usually show up within one or two billing cycles. That makes it the quickest legitimate way to raise a score before applying for a loan.
Length of history and new credit
Older accounts help show a long track record. Closing your oldest card can shorten your history over time and, if it had a large limit, can raise your utilization immediately. Unless an old card carries an annual fee you no longer want to pay, it is often better to keep it open and use it for a small recurring charge.
Each application for new credit usually creates a hard inquiry. Hard inquiries can appear on your report for up to two years, but they typically affect FICO scores for about 12 months, and a single inquiry usually has a small effect. Several applications in a short period can add up. For mortgage, auto and student loan shopping, scoring models generally treat multiple inquiries within a short window as one, so comparing lenders over a couple of weeks is reasonable.
Common mistakes that hold scores down
- Carrying a balance to "build credit." Paying interest does not improve your score. Using the card and paying the statement in full shows the same responsible behavior without the cost.
- Ignoring small bills. A forgotten $150 utility or medical bill that goes to collections can do far more damage than its size suggests.
- Maxing out a card, even briefly. A high statement balance can drag down your score for that month, even if you pay it in full.
- Opening several store cards for discounts. Each application adds an inquiry and a new account, lowering your average account age.
- Co-signing without a plan. The loan appears on your report, and the other borrower's late payments become yours.
- Paying for credit repair. Companies cannot legally remove accurate negative information, and federal law prohibits credit repair companies from charging before they perform the promised services. Everything they can legitimately do, you can do for free.
Check your reports and dispute errors
You can get free credit reports from all three bureaus at AnnualCreditReport.com, the official site authorized by federal law, and free weekly access is available there. Read each report and look for accounts you do not recognize, payments marked late that were on time, balances that are wrong and old debts listed as more recent than they are.
If you find an error, file a dispute with the bureau that shows it and include copies of any supporting documents. You can also dispute directly with the company that reported the information. Bureaus generally must investigate within 30 days. Accounts you do not recognize can also be a sign of identity theft, and in that case a credit freeze at each bureau is a free and effective next step.
How long improvement really takes
There is no guaranteed number of points or days, because every credit file is different. These are realistic general timelines:
| Action | When you may see a change |
|---|---|
| Paying down card balances | Often within one or two statement cycles, about 30 to 60 days. |
| Correcting a reporting error | After the dispute is resolved, usually within 30 to 45 days. |
| Building a score from no credit | A FICO score generally requires an account that has been open and reported for about six months. |
| Recovering from a recent late payment | Gradual over many months and years as on-time payments accumulate; the record can remain for up to seven years. |
| Recovering from collections or bankruptcy | Several years, with steady improvement as the item ages. |
A 90-day credit improvement plan
Weeks 1 and 2: get the facts
Pull all three reports, list every account with its balance, limit and due date, and set up autopay for at least the minimum on each one. Circle anything that looks wrong.
Weeks 3 and 4: fix and lower
File disputes for any errors. Calculate utilization on each card and overall, then direct extra payments to the card with the highest utilization. Note each card's statement closing date and plan payments a few days before it.
Months 2 and 3: stay steady
Avoid new credit applications unless they are necessary. Keep balances low, keep every payment on time and check your reports again at the end of the period. If you are working through debt at the same time, a structured debt payoff plan keeps progress consistent.
Building credit from scratch
If you have little or no credit history, the goal is to create a few positive accounts and let time do its work. Common starting points include a secured credit card, where a refundable deposit sets the limit; a credit-builder loan offered by many credit unions; or becoming an authorized user on a family member's well-managed card. Use any new card for one or two small purchases a month and pay the statement in full. After six to twelve months of on-time payments, many people qualify for a regular unsecured card.
Frequently asked questions
Does checking my own credit score lower it?
No. Checking your own score or report is a soft inquiry and does not affect your score. Only hard inquiries, which happen when you apply for new credit, can have a small effect.
Why is my credit score different in different apps?
There are many scoring models and versions, and each bureau may hold slightly different information. An app might show a VantageScore based on one bureau, while a lender may use a FICO version based on another. Differences of a few points or more are normal.
What is considered a good credit score?
On the common FICO range, scores from 670 to 739 are generally considered good, 740 to 799 very good and 800 or higher exceptional. Lenders set their own standards, so the score needed for the best rate depends on the type of loan.
Do I need to carry a credit card balance to build credit?
No. Carrying a balance only costs you interest. Using the card and paying the full statement balance each month builds the same positive payment history.
How long do closed accounts stay on my credit report?
Closed accounts in good standing can remain on your report for up to 10 years and continue to count toward your history. Negative items, such as late payments, generally remain for up to seven years.