What actually changes your credit score

Your credit score moves because of five specific things: how much debt you carry right now, whether you pay on time, how long you have had credit accounts, whether you have applied for new credit recently, and what mix of credit types you use. Each one pulls the score in a different direction. A single late payment can drop your score 100 points or more, while paying down half a credit card balance might raise it 40 to 50 points. The change is not instant — most lenders report to the credit bureaus once a month, so you may not see movement for 30 to 45 days.

The three major credit bureaus — Equifax, Experian, and TransUnion — each calculate your score slightly differently, so your number may vary by 10 to 50 points between them. The most common scoring model is FICO, which ranges from 300 to 850. A score above 670 is generally considered good; above 740 is very good. But different lenders use different thresholds, so a score that gets you a mortgage may not get you the best credit card rate.

Key Takeaways

  • Payment history is the single largest factor in your score — one late payment can lower it significantly, and the damage fades over time but stays on your report for seven years.
  • How much of your available credit you are using right now matters more than your total debt; paying down a balance can raise your score even if you still owe money.
  • Opening many new credit accounts in a short time signals risk to lenders and temporarily lowers your score, even if you do not use the accounts.
  • The length of your credit history and the variety of credit types you have (cards, loans, mortgages) both help your score, so closing old accounts can hurt it.
  • Your credit score updates monthly at best, so changes take weeks to show up — there is no way to raise it overnight.

Payment history: the heaviest weight

Payment history makes up about 35 percent of your FICO score. This means whether you pay your bills on time matters more than anything else. A payment 30 days late starts to damage your score. A payment 60 days late damages it more. A payment 90 days late damages it even more. Once a debt goes to a collection agency, the damage is severe and lasts for years.

A late payment stays on your credit report for seven years from the date you missed the payment, but its impact shrinks over time. A late payment from six months ago hurts less than one from last month. If you have a late payment, the best move is to get current and stay current — lenders care more about your recent behavior than your distant past.

One missed payment can drop your score 100 points or more if your score was high to begin with. If your score was already low, the drop may be smaller. The damage is worst in the first few months after the missed payment, then gradually fades.

Credit utilization: how much of your limit you are using

Credit utilization is the percentage of your available credit that you are currently using. If you have a credit card with a $1,000 limit and a $300 balance, your utilization on that card is 30 percent. This factor makes up about 30 percent of your FICO score.

Lower utilization is better. Most scoring models reward you for using less than 10 percent of your limit, and penalize you for using more than 30 percent. If you have a $5,000 limit and a $4,500 balance, your score will be lower than if you have the same $4,500 balance spread across multiple cards with higher limits. Paying down a balance can raise your score within weeks, even if you still carry debt.

Utilization is calculated across all your cards combined, so if you have three cards with $1,000 limits each and $500 total balance, your overall utilization is about 17 percent. Opening a new card with a high limit can lower your utilization immediately, but it also triggers a hard inquiry (see below), which temporarily lowers your score. The net effect is usually positive after a few months.

Length of credit history and account age

How long you have had credit accounts matters for about 15 percent of your score. Older accounts help you more than newer ones. An account you opened 10 years ago and still use is more valuable to your score than one you opened last month.

This is why closing old credit cards can hurt your score even if you paid them off. When you close an account, it stops aging and eventually falls off your report entirely. If it was your oldest account, closing it lowers the average age of all your accounts, which lowers your score. If you want to close a card, close a newer one instead, and keep old accounts open even if you do not use them.

The age calculation also includes how long it has been since you used each account. An old card you have not touched in five years still helps, but less than one you use regularly. Using an old card occasionally — a small purchase you pay off right away — keeps it active and maximizes its benefit to your score.

New credit inquiries and recent applications

When you apply for a credit card, loan, or mortgage, the lender pulls your credit report. This is called a hard inquiry and it lowers your score by a few points, usually 5 to 10. Multiple hard inquiries in a short time signal that you are desperate for credit, which lowers your score more. Hard inquiries stay on your report for two years but stop affecting your score after about three to six months.

Shopping for a mortgage or auto loan is an exception — multiple inquiries for the same type of credit within 14 to 45 days (depending on the scoring model) count as a single inquiry. This lets you compare rates without penalty. But applying for five different credit cards in one month will damage your score noticeably.

Soft inquiries — when you check your own credit or a company checks it for a pre-approved offer — do not lower your score. Only hard inquiries from lenders you have applied to count against you.

Credit mix: types of credit you carry

Credit mix makes up about 10 percent of your score. Lenders want to see that you can handle different kinds of credit: revolving credit (credit cards, lines of credit) and installment credit (car loans, mortgages, personal loans). If you have only credit cards, your score will be lower than if you have a mix.

You do not need to take out a loan just to improve your mix. If you already have a mortgage and credit cards, you have a healthy mix. If you have only credit cards, opening a new card will not help your mix, but it will not hurt it either. The mix factor matters least of the five factors, so do not make financial decisions based on it alone.

What does not affect your credit score

Your income, employment history, and savings account balance do not appear on your credit report and do not affect your score. Lenders may ask about these things when you apply for a loan, but they do not change your credit score itself. Checking your own credit report does not lower your score. Paying off a debt in full does not erase it from your report — it stays for seven years, but marked as paid.

Your age, race, gender, marital status, and location also do not affect your score. Utility bills and rent payments do not show up on your credit report unless you fall behind and the company sends the debt to a collection agency. Some newer credit reporting models are starting to include rent and utility payment history, but the traditional FICO score does not.

How to check what is actually on your report

You can get a free copy of your credit report from each of the three bureaus once per year at AnnualCreditReport.com. This is the only official site for free reports — other sites may charge or sign you up for monitoring services. Your report shows every account, every payment, and every inquiry, so you can see exactly what is affecting your score.

Your report and your score are different things. The report is the raw data; the score is a number calculated from that data. You can see your report for free, but your score usually costs money unless your bank or credit card company provides it for free (many do). Knowing what is on your report is more useful than knowing your exact score, because you can see which accounts are helping or hurting you and plan accordingly.

Frequently Asked Questions

How long does it take for a payment to show up on my credit report?

Most lenders report to the credit bureaus once a month, usually around the same date each month. A payment you make today may not show up for 30 to 45 days. If you are trying to raise your score quickly, make your payment early in the billing cycle so it reports sooner.

Can I raise my credit score by 100 points in one month?

Unlikely. Paying down a large balance or correcting an error on your report might raise your score 40 to 60 points in one month. A score jump of 100 points usually takes several months of on-time payments and lower utilization. There is no shortcut.

Does paying off a collection account remove it from my credit report?

No. Paying off a collection account stops the damage from getting worse, but the account stays on your report for seven years. It will be marked as paid, which is better than unpaid, but it does not disappear. Paying it off is still worth doing because it stops the clock on new damage.

If I have no credit history, how do I build a score?

Open a credit card or become an authorized user on someone else's card, then use it for small purchases and pay the full balance on time each month. Your score will start to build after three to six months of on-time payments. A secured credit card (backed by a cash deposit) is easier to get if you have no history.

Why did my score drop even though I paid everything on time?

You may have opened a new account (hard inquiry), increased your utilization on an existing card, or had an old account fall off your report. Check your credit report to see what changed. If you see an error, dispute it with the bureau that reported it.