What Factors Affect Your Credit Score?

Five main factors affect your credit score: payment history (35%), credit utilization (30%), length of credit history (15%), credit mix (10%), and new credit (10%). These percentages reflect how the FICO scoring model — used by 90% of top lenders — weighs each factor. Payment history and credit utilization together account for 65% of your score, which is why paying on time and keeping balances low are the two most important habits for building and maintaining good credit.

Small changes to the biggest factors can produce meaningful score improvements within weeks, while neglecting them can quietly drag your score down even when you're doing everything else right.

Key Takeaways

• Five factors shape your credit score under the FICO model, which 90% of top lenders use. Payment history makes up 35%, credit utilization 30%, length of credit history 15%, credit mix 10% and new credit 10%.

• Payment history and utilization drive 65% of your score, so paying on time and keeping balances low matter most. A single 30-day late payment can drop your score by 60 to 100 points.

• Focus your effort where it counts — set up autopay, pay down card balances before the statement closes, keep old accounts open and space out new applications by three to six months.

Summary generated by AI, verified by MoneyLion editors

MoneyLion offers a service to help you find personal loan offers. Based on the information you provide, you can get matched with offers for up to $100,000 from our top providers. You can compare rates, terms, and fees from different lenders and choose the best offer for you.

What Factors Affect Your Credit Score?

Five main factors affect your credit score: payment history (35%), credit utilization (30%), length of credit history (15%), credit mix (10%), and new credit (10%). These percentages reflect how the FICO scoring model — used by 90% of top lenders — weighs each factor. Payment history and credit utilization together account for 65% of your score, which is why paying on time and keeping balances low are the two most important habits for building and maintaining good credit.

Understanding what goes into your credit score lets you focus on the right things. Small changes to the biggest factors can produce meaningful score improvements within weeks, while neglecting them can quietly drag your score down even when you're doing everything else right.

How Credit Scores Are Calculated

Your credit score is a three-digit number (typically 300-850) calculated from the information on your credit report at the moment it's pulled. The two main scoring models are:

• FICO Score — used by 90% of top lenders for major lending decisions like mortgages, auto loans, and credit cards

• VantageScore — used by many free credit monitoring services like Credit Karma and increasingly by some lenders

Both models use similar factors but weigh them slightly differently. Lenders use credit scores to estimate how likely you are to repay borrowed money, which directly affects whether you're approved and what interest rate you pay.

The 5 Main Factors That Affect Your Credit Score

Here's how the FICO model weighs each factor:

• Payment history — 35%

• Credit utilization (amounts owed) — 30%

• Length of credit history — 15%

• Credit mix — 10%

• New credit — 10%

Each factor pulls in different data from your credit report, and improving any one of them can move your score. The first two factors account for nearly two-thirds of your score, so they deserve the most attention.

Payment History (35%)

Payment history is the single most important factor in your credit score. It tracks whether you've paid your credit accounts on time — including credit cards, mortgages, auto loans, student loans, and personal loans.

What counts as a late payment depends on how late it is:

• 30 days late — reported to credit bureaus and can drop your score by 60 to 100+ points

• 60 days late — significantly more damage to your score

• 90+ days late — severe damage, and the account may be charged off or sent to collections

Other items that fall under payment history:

• Collections accounts

• Charge-offs (debts the creditor has written off as a loss)

• Bankruptcies

• Foreclosures

• Repossessions

How to Improve Payment History

Set up autopay for at least the minimum payment on every credit account, use payment reminders, and send goodwill letters for isolated late payments to ask the creditor to remove them.

Credit Utilization / Amounts Owed (30%)

Credit utilization is the percentage of your available revolving credit (credit cards and lines of credit) that you're currently using. It's the second most important factor in your score — and one of the fastest levers for short-term improvements.

The math is simple: divide your total credit card balances by your total credit limits, then multiply by 100.

Target Utilization Levels

• Under 30% — generally considered acceptable

• Under 10% — ideal for top scores

• 0% — not recommended (no activity to report)

Credit scoring models look at both your overall utilization (across all cards) and your per-card utilization. A single maxed-out card can hurt your score even if your overall utilization is low.

How to Improve Credit Utilization

• Pay down balances before the statement closing date (not just before the due date)

• Request a credit limit increase from your card issuer

• Spread balances across multiple cards

• Keep old credit cards open to preserve total available credit

• Make multiple payments throughout the month

Length of Credit History (15%)

Length of credit history measures how long you've had credit accounts open. It includes:

• The age of your oldest account

• The age of your newest account

• The average age of all your accounts

A longer credit history generally helps your score because it gives lenders more data to assess your risk. This is why closing your oldest credit card — even one you don't use — can hurt your score by shortening your average account age and lowering your total available credit.

How to Protect Length of Credit History

• Keep old credit cards open, even if you don't use them regularly

• Avoid opening too many new accounts at once

• Become an authorized user on a seasoned account with a long history

• Use old cards for small recurring charges to keep them active

Credit Mix (10%)

Credit mix refers to the variety of credit account types on your report. Lenders like to see that you can responsibly manage different types of credit.

The two main categories:

• Revolving credit — credit cards and lines of credit (open-ended)

• Installment loans — auto loans, student loans, mortgages, and personal loans (fixed payments over a set term)

Having both types in your credit history generally produces a stronger score than having only one. However, credit mix is only 10% of your score, so it's not worth opening new accounts just to diversify. Build a good mix naturally over time as your financial needs change.

New Credit (10%)

New credit covers recent credit activity, including hard inquiries and newly opened accounts. The factor is designed to flag patterns that suggest financial stress — like applying for several credit cards in a short period.

Hard Inquiries vs. Soft Inquiries

• Hard inquiries — triggered when you apply for new credit; can drop your score by 5 to 10 points and stay on your report for 2 years

• Soft inquiries — triggered when you check your own credit, receive pre-qualified offers, or are part of a background check; no impact on your score

Rate Shopping Protections

When you're shopping for a mortgage, auto loan, or student loan, FICO treats multiple hard inquiries within a 14 to 45-day window as a single inquiry. This lets you compare offers without being penalized for each pull. VantageScore uses a 14-day window for all loan types.

How to Manage New Credit

• Apply for new credit only when you need it

• Space out applications by at least 3 to 6 months

• Use pre-qualification tools (soft pulls) before submitting full applications

• Cluster mortgage and auto loan applications within the rate shopping window

How VantageScore Factors Differ From FICO

VantageScore uses the same data as FICO but weighs factors slightly differently. Instead of fixed percentages, VantageScore uses descriptive influence levels:

• Extremely influential: Payment history

• Highly influential: Total credit usage, balance, and available credit

• Moderately influential: Credit mix and experience

• Less influential: New accounts and recent credit behavior, balances and available credit

The two models often produce different scores for the same person — typically within 10 to 30 points of each other. Lenders choose which model and version to use, so the score that matters most depends on what you're applying for.

Other Things That Can Affect Your Credit Score

Beyond the five main factors, a few additional items show up on your credit report and influence your score:

• Collections accounts — drop your score by 100+ points and stay on your report for 7 years

• Public records — bankruptcies are the only public records still reported (Chapter 7 stays for 10 years, Chapter 13 for 7 years)

• Charge-offs and settlements — severely damage your score and remain for 7 years

• Account closures — closing accounts can affect utilization and length of credit history

• Identity theft and fraud — fraudulent accounts can drag down your score until disputed and removed

What Doesn't Affect Your Credit Score

Many people assume their credit score is influenced by things that actually have no impact. Items that don't affect your credit score include:

• Income and employment status

• Checking your own credit (soft inquiry only)

• Savings account balances

• Marital status

• Age, race, gender, religion, or national origin

• Utility and rent payments (unless specifically reported through services like Experian Boost)

• Debit card activity

• Auto-debit payments from your bank account

This doesn't mean these things don't matter — lenders often look at income separately when making loan decisions — but they're not part of your credit score calculation.

How to Improve Each Credit Score Factor

If you want to focus your efforts on what produces the biggest results, prioritize in this order:

• Payment history (35%): Set up autopay, never miss a payment, address any past-due accounts immediately

• Credit utilization (30%): Pay down credit card balances, especially before statement closing dates

• Length of credit history (15%): Keep old accounts open, become an authorized user on a seasoned account

• Credit mix (10%): Add an installment loan or revolving account naturally over time

• New credit (10%): Space out applications and use pre-qualification tools

The biggest score improvements typically come from addressing payment history and utilization first.

How Often Do These Factors Update?

Most creditors report to the credit bureaus monthly, usually around your statement closing date. That means:

• Your credit report can update multiple times per month if you have several accounts

• Your score is recalculated each time it's pulled, using the most recent data

• Changes from one bureau may not match changes from another (since not all creditors report to all three)

Score fluctuations of a few points up or down are completely normal and reflect routine updates rather than meaningful changes to your financial behavior.

Frequently Asked Questions

Which credit score factor has the biggest impact?

Payment history is the single biggest factor, making up 35% of your FICO score. A single 30-day late payment can drop your score by 60 to 100+ points, while consistent on-time payments build your score steadily over time.

Does checking my credit score lower it?

No. Checking your own credit is a soft inquiry, which has no impact on your score. You can check it as often as you want without consequence.

How quickly can I improve my credit score?

Some changes show up within 30 to 60 days, especially lowering credit utilization or having errors corrected through disputes. Significant improvements (moving up a full credit tier) typically take 6 to 12 months of consistent effort.

Do all lenders use the same credit score?

No. Lenders choose which scoring model and version to use, and they may pull from any of the three credit bureaus. This is why you may have different scores at different lenders — even on the same day.

Does paying off a loan hurt my credit score?

Sometimes, temporarily. Paying off an installment loan can lower your credit mix and reduce your active accounts, which may cause a small short-term dip. The long-term financial benefit of being debt-free far outweighs the temporary score impact.

How many credit cards should I have for a good score?

There's no magic number. Most people with excellent credit have 3 to 5 active credit cards, but the key is managing whatever you have responsibly — paying on time and keeping utilization low. Quality matters more than quantity.

Does income affect my credit score?

No. Your income is not part of your credit score calculation. Lenders may consider income separately when making approval decisions, but the credit bureaus don't track it.

Your credit score is the sum of five well-defined factors — and every one of them is within your control. Focus on the two biggest (payment history and credit utilization), let time work in your favor for the rest, and your score will reflect your effort.

Key Terms

• Payment history: Your record of paying credit accounts on time. It’s the biggest credit score factor and shows lenders how consistently you’ve handled borrowed money.

• Credit utilization: The % of your available revolving credit you’re using. Lower utilization usually helps your score, especially when balances stay well below your credit limits.

• Length of credit history: How long your credit accounts have been open, including your oldest account, newest account and average account age.

• Credit mix: The variety of credit types on your report, like credit cards and installment loans. A balanced mix can help your score, but it matters less.

• Hard inquiry: A credit check triggered by an application for new credit. It can slightly lower your score and usually stays on your credit report for two years.

Sources:

• myFICO: How Are FICO Scores Calculated?

• Experian: What Is a Credit Utilization Rate?

• myFICO: Length of Credit History

• myFICO: Types of Credit and How They Affect Your FICO Score

• Consumer Financial Protection Bureau: What Is a Credit Inquiry?

Summary generated by AI, verified by MoneyLion editors