Your FICO score is calculated from five categories of information in your credit report: payment history (35%), amounts owed (30%), length of credit history (15%), credit mix (10%), and new credit (10%). Payment history and amounts owed — mainly your credit card utilization — make up about 65% of your score, which is why paying on time and keeping balances low matter most. VantageScore uses similar information grouped a little differently. Your score doesn’t include your income, job, age, or where you live.

These percentages are FICO’s general guidance; how much each factor matters for you depends on your overall credit profile. This guide explains each factor, what helps and hurts it, and the fastest ways to improve.

Five factors, two that matter most.

Key takeaways

• Payment history (35%) is the largest factor.
• Amounts owed (30%), especially utilization, is the fastest to change.
• Length of history (15%) grows only with time.
• Credit mix (10%) and new credit (10%) matter less.
• Your score is calculated from your credit report — not your income or bank balance.
• The same habits improve FICO and VantageScore.

The Five Factors at a Glance

FICO’s general weighting of the five factors.

Focus here first.

1. Payment History (35%)

Payment history shows whether you’ve paid your accounts on time. It includes:

• On-time payments on credit cards, loans, and mortgages
• Late payments, reported at 30, 60, 90, and more days late
• Collections and charge-offs
• Bankruptcies

How it’s weighed: Recent, severe, and frequent late payments hurt most. A single 30-day late payment from five years ago matters much less than a 90-day late payment last month.

How to improve it:

• Set up autopay for at least the minimum on every account
• Bring any past-due accounts current right away
• Dispute late payments that are inaccurate
• Ask for goodwill adjustments on isolated late payments caused by hardship

2. Amounts Owed (30%)

This factor looks at how much you owe, especially compared with your available credit. The most important piece is credit utilization — your card balances divided by your credit limits.

How it’s weighed: Lower utilization is better. Under 30% is good; under 10% is associated with the highest scores. Scoring models look at both overall and per-card utilization. Installment loan balances compared with the original amounts also count, but usually less.

How to improve it:

• Pay down credit card balances, starting with the card closest to its limit
• Pay before your statement closing date so a lower balance is reported
• Keep old cards open to preserve available credit
• Ask for credit limit increases if they don’t require a hard inquiry

This is the fastest factor to change — improvements can show up within a billing cycle.

3. Length of Credit History (15%)

This factor looks at how long you’ve had credit, including:

• The age of your oldest account
• The age of your newest account
• The average age of all your accounts
• How long it’s been since you used certain accounts

How to improve it: Mostly with time. Keep old accounts open and active, avoid opening many new accounts at once, and consider becoming an authorized user on a long-standing account.

4. Credit Mix (10%)

Credit mix looks at whether you have experience with different types of credit:

• Revolving: credit cards and lines of credit
• Installment: auto loans, student loans, mortgages, personal loans

How to improve it: Don’t take on debt just for the mix. If you only have credit cards and need a loan anyway, managing it well can help. A credit builder loan can add installment history if you have none.

5. New Credit (10%)

This factor looks at recent credit activity:

• Hard inquiries from applications
• Recently opened accounts
• How long since your last new account

How it’s weighed: One inquiry usually costs fewer than five points, according to FICO. Several in a short time — especially for credit cards — can add up. Rate shopping for mortgages, auto loans, and student loans within a short window is generally treated as one inquiry.

How to improve it: Apply for credit only when you need it, space out applications, and use prequalification tools when available.

What Each Factor Measures

Each factor and how to improve it.

What Isn’t in Your Score

These don’t affect your score.

Your credit score doesn’t include:

• Your income or job
• Your age, race, religion, national origin, sex, or marital status
• Where you live
• Your savings or checking balances
• Soft inquiries, including checking your own credit
• Whether you rent or own your home

Lenders may consider some of these separately — especially income — but they aren’t part of your score.

How VantageScore Differs

VantageScore uses the same credit report information but groups and weighs it differently. For VantageScore 4.0, payment history carries the most influence, followed by depth of credit and utilization, with balances, recent credit, and available credit carrying less. The practical takeaway is the same: pay on time and keep balances low. See our guide comparing FICO and VantageScore for more.

Why Your Score Changes

Because your score is recalculated from your current credit report, it changes as your information changes:

• A new balance is reported
• An account ages
• A new inquiry or account appears
• A late payment is reported or ages
• An old account drops off

Small changes from month to month are normal.

Putting It All Together

If you want to improve your score, focus in this order:

• Stop new late payments with autopay
• Lower your utilization by paying down balances before statements close
• Fix errors on your credit reports
• Keep old accounts open and let time build your history
• Apply for new credit only when needed

For a complete plan, see our guide on how to improve your credit score.

An Example: Two People, Same Income, Different Scores

Here’s an illustrative example. Two coworkers earn the same salary.

Alex has three credit cards with $1,200 in total balances on $15,000 in limits (8% utilization), a car loan, ten years of history, no late payments, and one inquiry in the past year.

Jordan has two credit cards with $4,500 in balances on $5,000 in limits (90% utilization), no loans, three years of history, one 30-day late payment last year, and four inquiries in the past year.

Alex’s score is much higher — not because of income, which isn’t in either score, but because of payment history, utilization, history length, and new credit. If Jordan paid down balances, set up autopay, and stopped applying for new cards, much of the gap would close within a year or two.

How Negative Items Are Weighed Over Time

Negative items don’t count equally forever:

• Recent late payments hurt more than old ones
• Severity matters: 90 days late is worse than 30
• Frequency matters: several late payments are worse than one
• Age matters: most negative items lose weight each year and come off after seven years (seven years plus 180 days for collections and charge-offs)

That’s why rebuilding works: every month of positive history makes older negatives matter less.

Thin Files and the Five Factors

If you have few accounts, each factor carries more weight. A single late payment or high balance can move your score a lot, and so can a single new account. Building a solid foundation — one or two well-managed accounts — makes your score more stable.

Common Myths

• “Carrying a balance helps.” Paying in full builds credit without interest.
• “Closing old cards helps.” It can hurt utilization and, eventually, history length.
• “Income affects my score.” It doesn’t.
• “Checking my score hurts it.” It doesn’t.
• “All debt is bad for my score.” Managing debt well is what builds a score.

Factor-by-Factor Action Plan

Payment history

• Autopay minimums on every account
• Calendar reminders for bills not on autopay
• Goodwill letters for isolated, accurate late payments
• Disputes for inaccurate late payments

Amounts owed

• Pay before statement closing dates
• Pay the highest-utilization card first
• Request limit increases on older cards
• Avoid closing no-fee cards

Length of history

• Keep your oldest cards open and active
• Avoid opening several accounts at once
• Consider authorized user status on a long-standing account

Credit mix

• Don’t borrow just for mix
• Consider a credit builder loan if you have no installment history

New credit

• Apply only when needed
• Rate shop for loans within a short window
• Use prequalification tools

How Errors Affect Each Factor

Errors on your credit report can distort any factor — a late payment reported by mistake hurts payment history, a missing credit limit inflates utilization, and an account that isn’t yours can affect several factors at once. Checking your reports at AnnualCreditReport.com and disputing errors can improve your score without changing any habits.

Scores for Specific Types of Credit

FICO also offers industry-specific scores, such as FICO Auto Scores and Bankcard Scores. They use the same five factors but give more weight to your history with that type of credit — for example, how you’ve handled past auto loans. They range from 250 to 900. Mortgage lenders have traditionally used older FICO versions and are transitioning to newer models.

What Changes Your Score Fastest

Checking Your Score Factors

Most free score services list your key factors — also called reason codes — such as “proportion of balances to credit limits is too high” or “too many recent inquiries.” These show which of the five factors is holding your score back right now. Start with the first one listed.

Keep Perspective

The five factors can seem complicated, but the habits behind them are simple: pay on time, keep balances low, keep old accounts, and don’t apply for credit you don’t need. Do those consistently, and every factor improves on its own.

How Different Life Events Affect the Factors

Understanding which factors an event touches helps you predict how your score will react.

Payment History in Detail

Payment history includes more than whether you paid on time:

• How late: 30, 60, 90, 120, or more days
• How recently: within the past year or years ago
• How often: one late payment or a pattern
• Public records: bankruptcies
• Collections and charge-offs

It also includes the positive side: every on-time payment on every account. The longer your streak of on-time payments, the more your payment history helps.

Amounts Owed in Detail

Beyond utilization, this category considers:

• How many accounts carry balances
• Balances on installment loans compared with original amounts
• Total debt across all accounts

A mortgage with a large balance isn’t treated like a maxed-out credit card. Revolving balances are the most important part of this factor.

Length of History in Detail

Scoring models look at the age of your oldest account, your newest account, and the average age of all accounts. Closed accounts in good standing can keep counting toward your history for about 10 years after closing. Opening several new accounts at once lowers your average age, which is one reason to space out applications.

New Credit in Detail

This factor looks at how many new accounts you’ve opened and how many hard inquiries you have — especially in the past year. Rate shopping for a mortgage, auto loan, or student loan within a short window is generally treated as one inquiry. Credit card applications aren’t combined. Inquiries stay on your report for two years but affect FICO scores for only 12 months.

Credit Mix in Detail

Scoring models reward experience with both revolving and installment credit, but mix is a small factor. Someone with only credit cards can still have an excellent score. Never take on debt you don’t need just to improve mix.

How to Read Your Credit Report With the Factors in Mind

When you pull your free reports, look at them factor by factor:

• Payment history: scan the month-by-month grid on each account for late marks
• Amounts owed: compare each card’s balance with its limit
• Length of history: note your oldest and newest open dates
• Credit mix: list your revolving and installment accounts
• New credit: check the inquiries section for the past year

This turns a long report into a clear picture of your strengths and weaknesses.

A Quick Self-Assessment

Rate yourself on each factor:

• Payment history: Any late payments in the past two years?
• Amounts owed: Is any card above 30% of its limit?
• Length of history: Is your oldest account at least a few years old?
• Credit mix: Do you have both revolving and installment experience?
• New credit: More than two or three applications in the past year?

Your weakest answer is where to focus first.

Frequently Asked Questions

What is the most important factor in a credit score?

Payment history, at about 35% of your FICO score.

How much does utilization affect my score?

Amounts owed make up about 30% of your FICO score, and utilization is a key part of that.

Does income affect my credit score?

No. Income isn’t part of your credit score, although lenders consider it separately.

How long does it take to improve each factor?

Utilization can improve within a billing cycle. Payment history and length of history take months or years.

Does checking my own score lower it?

No. It’s a soft inquiry and doesn’t affect your score.

Do rent and utility payments count?

Only if they’re reported to the credit bureaus, such as through a rent reporting service. Unpaid bills sent to collections can hurt your score.

Are the percentages the same for everyone?

They’re general guidance. How much each factor matters depends on your overall profile.

What’s a good utilization ratio?

Under 30% is good; under 10% is associated with the highest scores.

Does paying off a loan raise my score?

Not always. Paying off an installment loan can slightly lower your score if it was your only active one, even though it’s good for your finances.

How much does one late payment hurt?

It depends on your profile. Higher scores often drop more because a late payment is out of character.

Does the number of accounts I have matter?

It affects several factors, including credit mix and history, but more accounts isn’t automatically better. Managing a few accounts well is enough.

How do scores handle paid collections?

Newer models such as FICO 9 and VantageScore 3.0 and 4.0 ignore paid collections. Older models may still count them.

Can I improve all five factors at once?

Yes. Paying on time and keeping balances low help immediately, while history grows with time and careful applications protect new credit.

Why do lenders see a different score than I do?

They may use a different model or bureau. The same factors drive all of them.

Is it possible to have a perfect score?

Yes, 850 is possible, but scores in the high 700s typically get the same best rates.

Does a mortgage help credit mix?

Yes, a mortgage is an installment account. But you shouldn’t take on a loan just for mix.

Do student loans count?

Yes. Student loans are installment accounts that affect payment history, amounts owed, and mix.

Does a high mortgage balance hurt my score?

Not as much as high credit card utilization. Installment balances are weighed differently.

How many accounts should carry a balance?

Fewer is generally better. Many people let one card report a small balance and pay the rest to zero.

How old should my accounts be for a good score?

There’s no required age. Longer history helps, but people with a few years of perfect history can have good scores.

Do closed accounts still count toward my history?

Closed accounts in good standing can remain on your report for about 10 years and continue to count.

What’s the quickest factor to fix?

Amounts owed, especially credit card utilization.

What’s the slowest factor to improve?

Length of credit history, which grows only with time.

Do all five factors apply to people with no credit?

You need at least one account for the factors to be calculated. Start with a secured card or credit builder loan.

Can a credit repair company change these factors?

It can dispute inaccurate information that affects them. The habits that improve each factor are up to you.

Is utilization calculated per card or overall?

Both. Scoring models look at overall and individual card utilization.

Does a new car loan hurt my score?

It may cause a small, temporary dip from the inquiry and new account. On-time payments then help.

Do all lenders use FICO’s five factors?

Most scoring models use similar information, but weights differ. FICO’s five factors are the most widely referenced.

Does paying bills early raise my score?

Paying on time is what counts. Paying cards before the statement closes can lower reported utilization, which helps.

Does being denied for credit lower my score?

The inquiry from the application may lower it slightly. The denial itself isn’t reported.

The Bottom Line

Your credit score comes down to five factors, and two of them — paying on time and keeping balances low — make up about two-thirds of it. Focus there first, fix any errors on your reports, keep old accounts open, and apply for new credit sparingly.

For a full plan, see our step-by-step guide on how to fix your credit.

Want Help Improving Your Score?

Strong Credit Report has helped consumers across California and nationwide since [year] correct credit report errors and build stronger credit. Your first consultation is free, and we’ll tell you honestly which steps you can take on your own.

Schedule a free consultation or call 800-603-8045.

Strong Credit Report is a credit repair organization as defined under the Credit Repair Organizations Act. We cannot guarantee specific results or score increases. This article is general information, not financial advice.