5 Factors That Determine Your Credit Score

How Your Credit Score Is Calculated

Your FICO score, the credit score used by 90 percent of top lenders, is calculated from information in your credit reports at the three major bureaus. FICO uses a proprietary algorithm that weighs five categories of information. While the exact formula is secret, FICO has publicly disclosed the weight of each category:

• Payment History — 35%
• Amounts Owed (Credit Utilization) — 30%
• Length of Credit History — 15%
• Credit Mix — 10%
• New Credit — 10%

FICO scores range from 300 to 850. Here is how lenders typically categorize scores:

• 800+ — Exceptional
• 740-799 — Very Good
• 670-739 — Good
• 580-669 — Fair
• Below 580 — Poor

Factor 1: Payment History (35%)

Payment history is the single most important factor in your credit score. It reflects whether you have paid your credit obligations on time. Lenders want to know: if they extend credit to you, will you pay them back on schedule?

What Counts

• On-time payments on credit cards, mortgages, auto loans, student loans, and other accounts
• Late payments (30, 60, 90, 120+ days late)
• Collections, charge-offs, repossessions, and foreclosures
• Bankruptcies and civil judgments
• The recency, severity, and frequency of negative items

How to Improve Payment History

• Set up autopay — The simplest way to ensure you never miss a payment. Set up automatic minimum payments on all accounts, then manually pay more when you can.
• Set calendar reminders — If you prefer manual payments, set reminders 5 to 7 days before each due date.
• Dispute inaccurate late payments — If you are reported late but actually paid on time, dispute the error under FCRA Section 611.
• Send goodwill letters — For legitimate late payments caused by extenuating circumstances, a goodwill letter may convince the creditor to remove the negative mark.
• Negotiate catch-up plans — If you are behind, contact creditors before accounts go to collections. Many will work with you on a payment plan and may avoid reporting the delinquency.

Key insight: A single 30-day late payment can drop your score by 60 to 110 points if you previously had excellent credit. The impact is less dramatic for consumers who already have other negative items.

Factor 2: Amounts Owed / Credit Utilization (30%)

This factor looks at how much of your available credit you are using. The key metric is your credit utilization ratio: your total credit card balances divided by your total credit card limits.

What Counts

• Individual card utilization (balance vs. limit on each card)
• Overall utilization across all revolving accounts
• Balances on installment loans relative to the original loan amount
• The number of accounts with balances

Optimal Utilization Ranges

• 0% — Having open cards with no balance shows available credit but no utilization
• 1-9% — The ideal range. Consumers with the highest scores typically use less than 10% of their available credit
• 10-29% — Good. Still considered low utilization by most scoring models
• 30-49% — Moderate. This is where you start to see negative impact
• 50-74% — High. Significant negative impact on your score
• 75-100%+ — Very high or maxed out. Major negative impact

How to Improve Credit Utilization

• Pay down balances — The most direct approach. Focus on the card with the highest utilization first.
• Make multiple payments per month — Your balance is typically reported to the bureau once per month on your statement date. By paying before the statement date, you can lower the reported balance.
• Request credit limit increases — A higher limit with the same balance lowers your utilization ratio. Many issuers allow you to request increases online.
• Do not close old credit cards — Closing a card reduces your total available credit, which increases your utilization ratio even if your balances do not change.
• Spread balances across cards — It is better to have 20% utilization on three cards than 60% utilization on one card.

Quick win: Utilization has no memory. Unlike late payments that stay on your report for seven years, your utilization ratio is recalculated every month based on your current balances. Paying down your cards can improve your score within 30 days.

Factor 3: Length of Credit History (15%)

This factor considers how long you have had credit accounts. A longer credit history generally indicates more experience managing credit and is viewed positively by scoring models.

What Counts

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

How to Improve Credit History Length

• Keep old accounts open — Even if you do not use a credit card regularly, keeping it open maintains your account age. Use it for a small recurring charge to keep it active.
• Become an authorized user — Being added as an authorized user on a family member's older account can add that account's history to your credit file.
• Avoid opening unnecessary new accounts — Each new account lowers your average account age.
• Be patient — This factor improves naturally with time. There is no shortcut to building a long credit history.

Factor 4: Credit Mix (10%)

Credit mix refers to the variety of credit accounts in your file. Scoring models consider whether you have experience with different types of credit.

Types of Credit

• Revolving credit — Credit cards, retail store cards, lines of credit
• Installment loans — Mortgages, auto loans, student loans, personal loans
• Open credit — Accounts that must be paid in full each month (some charge cards)

How to Improve Credit Mix

• Do not open accounts just for the mix — While a diverse credit mix helps, the benefit is not significant enough to justify taking on debt you do not need.
• Consider a credit-builder loan — If you only have credit cards, a small credit-builder loan from a credit union can add an installment loan to your mix without much risk.
• A secured credit card can help — If you only have installment loans, a secured credit card adds revolving credit to your mix.

Factor 5: New Credit (10%)

This factor looks at how much new credit you have sought recently. Opening several new accounts in a short period represents greater risk to lenders.

What Counts

• The number of recently opened accounts
• The number of recent hard inquiries
• The time since your most recent new account or inquiry
• How quickly you are re-establishing positive credit after past payment problems

How to Improve New Credit

• Limit credit applications — Only apply for credit when you truly need it.
• Rate shop within a short window — When shopping for a mortgage, auto loan, or student loan, complete all applications within a 14 to 45 day period. Multiple inquiries of the same type in this window count as one inquiry.
• Pre-qualify first — Many lenders offer pre-qualification with a soft pull that does not affect your score. Check your odds before submitting a full application.
• Dispute unauthorized inquiries — If hard inquiries appear that you did not authorize, dispute them under FCRA Section 604.

Which Factors Should You Focus On?

The fastest way to improve your credit score is to focus on the factors with the most weight and the quickest turnaround:

1. Credit utilization (30%) — This updates monthly and has no memory. Paying down balances can improve your score within 30 days.
2. Payment history (35%) — While you cannot erase the past, you can dispute inaccurate late payments and build a positive track record going forward.
3. New credit (10%) — Stop applying for new credit and let existing inquiries age. Impact diminishes after 12 months.
4. Credit mix (10%) and length of history (15%) — These improve slowly over time. Do not make impulsive decisions that worsen them (like closing old accounts).

How Disputing Errors Affects Your Score

Many consumers do not realize how much inaccurate negative information can drag down their scores. Removing just one erroneous late payment or collection account can improve your score significantly. Under the FCRA, you have the right to dispute any information that is inaccurate, incomplete, or unverifiable.

ScoreWipe analyzes your credit report to identify errors and negative items that can be disputed, then generates customized FCRA-compliant dispute letters for each one. Removing even one inaccurate item can make the difference between a "Fair" and "Good" credit rating.