Firstcard
Get Started
Menu

How Credit Scores Are Calculated: The 5 Key Factors

March 22, 2026

Updated March 2026

The 5 Factors That Determine Your Credit Score

Want to know how credit scores are calculated? It's simpler than you think. Your FICO score—the most common credit score used by lenders—breaks down into five factors. Each factor has a different weight, meaning some matter more than others. Understanding how credit scores are calculated helps you focus your efforts where they'll have the biggest impact. Read on to learn where credit score ranges fit in, and if you are trying to understand why your score is hurting, our guide on what bad credit actually means shows what lenders see at the low end.

Payment History (35% of Your Score)

This is the biggest piece of your credit score. Lenders want to know: do you pay your bills on time? Your payment history includes credit cards, loans, and even utility bills if they're reported to the bureaus.

One missed payment can ding your score. But it gets worse the more recent it is. A late payment from six months ago hurts less than one from last month.

To improve here: never miss a due date. Set up automatic payments if you tend to forget.

Credit Utilization (30% of Your Score)

This measures how much of your available credit you're actually using. If you have a $1,000 credit limit and a $900 balance, your utilization is 90%. If you have a $100 balance, it's 10%.

Lenders like to see utilization below 30%. Understanding your credit utilization ratio is key to improving your score quickly.

To improve here: pay down your balances or ask for a credit limit increase. Even paying a few hundred dollars off can drop your utilization significantly.

Length of Credit History (15% of Your Score)

This factors in how long your accounts have been open. The longer your credit history, the more data lenders have about your habits. Old accounts help your score, even if you don't use them.

This is one reason closing old credit cards can hurt your score. It shortens your average account age.

To improve here: keep old accounts open even if you're not using them. If you're just starting out, learn how long it takes to build credit and be patient.

Credit Mix (10% of Your Score)

This looks at the variety of credit you have. Lenders want to see that you can handle different types of credit: credit cards, car loans, mortgages, student loans, and so on.

If you only have credit cards, diversifying helps. If you already have a car loan and student loans, you're in good shape.

To improve here: don't open accounts just for variety. Use the credit types that make sense for your life.

New Credit Inquiries (10% of Your Score)

This tracks how often you've recently applied for credit. When you apply for a credit card or loan, the lender pulls your credit. That's called a hard inquiry, and it dings your score slightly, usually 5-10 points.

Multiple hard inquiries in a short time suggest you're desperate for credit, which worries lenders.

To improve here: only apply for credit when you actually need it. Space out applications by at least a few months. Checking your own credit is a soft inquiry and doesn't count against you.

FICO vs VantageScore: Different Formulas, Same Idea

FICO is the most common score, but VantageScore is another option. Both use the same five factors, but weight them differently. FICO weights payment history more heavily; VantageScore gives a bit more weight to credit utilization.

Most lenders use FICO, so that's the score to focus on. For a fuller breakdown of which lenders actually use VantageScore and when it matters, see our dedicated guide. The strategy is the same either way: pay on time, keep balances low, and build a long history. Want to get a 700 credit score? Master these five factors.

Monitor Your Progress

Tracking your credit is essential to understanding which factors are improving. Free credit monitoring tools can help you watch your score in real-time and see how your actions impact each factor. Many services also offer detailed breakdowns of your credit report, showing you exactly where you can improve.

Best for: Everyday credit building

Self Visa® Credit Card

Self Visa® Credit Card
5Firstcard rating

Start the path to financial freedom.

Fee

$25 (Intro annual fee for new customers (first year): $0)

APR

27.49%

Minimum Deposit Amount

$100

Credit Check

No

Cashback

N/A

Benefit

High approval rates

Best for: Credit builder loan

Kikoff Credit Account

Kikoff Credit Account
4Firstcard rating

Everything you need to build your credit, right in one app. Build credit, lower debt, and unlock progress with tools that actually work.

Loan Amount

$750-$3,500 depends on the plan

Term

12 months

APR

0%

Admin Fee

$0

Monthly Fee

$5/month for Basic plan, $20/mo for Premium plan $35/mo for Ultimate plan

Credit Check

No

Average Score Increase

An avg increase of +86 points within a year with on-time payments

Best for: People who need to improve their credit

Creditship

Creditship
5Firstcard rating

Get free credit monitoring and concrete advice how to improve your credit from Creditship AI.

Standout feature

AI Credit Coach. AI analyzes your credit report in depth and gives you tailored, actionable steps to raise your score.

Fees

Free

Pros

Free credit report access plus monitoring and alerts

Cons

No credit repair feature

Understanding Your Credit Report

Learning to read your credit report is just as important as understanding your score. Your report shows all the details behind those five factors, so you can see exactly what's helping or hurting you.

FAQ

What's a good credit score?

FICO scores range from 300 to 850. Scores above 670 are generally considered good. Above 740 is very good. Above 800 is exceptional.

How often does my score update?

Your credit report updates when creditors report new information, usually monthly. Your score can change whenever your report changes.

Can I improve my score quickly?

Some improvements are quick: paying down a balance can lower your utilization in weeks. Others take time: building a long payment history takes months or years.

Does checking my own credit hurt my score?

No. Soft inquiries (when you check your own credit) don't affect your score. Only hard inquiries from lenders do.

How long do negative items stay on my report?

Late payments stay for 7 years. Bankruptcy lasts 10 years. Collections and charge-offs also stick around for 7 years.

Build All Five Factors With the Right Tools

If you're starting from scratch, building all five factors takes time. But having the right strategy and tools can help you improve faster. The Self Visa® Credit Card has high approval rates and reports to all three bureaus — read our Self review for details. Kikoff offers a secured credit card with 0% interest and no credit check — see our Kikoff review.

Pair a secured card with a credit builder loan like the Self Credit Builder Account to address multiple factors simultaneously — you'll build payment history, credit mix, and account age all at once.


Firstcard Educational Content Team

Firstcard Educational Content Team - March 22, 2026

Credit building
for all

Build credit early, earn cashback, grow your savings all in one place.
Credit building for all