FICO Score vs. Credit Score: What's the Difference?

A FICO® score is a credit score. It's not a separate category. The confusion comes from the fact that "credit score" is a broad term covering dozens of different scoring models, and FICO is just one of them (the most widely used one). Think of it like this: all FICO scores are credit scores, but not all credit scores are FICO scores.

When 90% of top U.S. lenders make lending decisions, they use a FICO score, according to Fair Isaac Corporation. The main alternative is VantageScore, created by Equifax, Experian, and TransUnion in 2006. Both models use the same raw material (your credit report data) but weigh the factors differently, which is why they can produce different numbers for the same person.

This guide breaks down the differences between FICO and VantageScore, explains why your scores vary, and tells you which one to pay attention to.

What Is a Credit Score?

A credit score is a three-digit number that predicts how likely you are to repay borrowed money. It's calculated by running the data in your credit report through a mathematical model (called a scoring model). The output is a number that lenders use to make quick approval decisions.

There are many credit scoring models. The two dominant ones in the U.S. are:

• FICO (created by Fair Isaac Corporation in 1989)
• VantageScore (created jointly by Equifax, Experian, and TransUnion in 2006)

Both produce scores on a 300-to-850 scale (for their current versions) and both analyze the same core factors: payment history, amounts owed, length of credit history, credit mix, and new credit. The differences are in how they weight those factors and what minimum data they require.

Lenders can also build their own proprietary scoring models, and some do. But FICO and VantageScore dominate the market.

What Is a FICO Score?

The FICO score was developed by Fair Isaac Corporation and first introduced to lenders in 1989. It was the first widely adopted credit scoring system, and it remains the industry standard. According to FICO, their scores are used by 90% of top U.S. lenders for credit decisions.

FICO has released multiple versions of its scoring model over the years. The most commonly used ones today are:

• FICO Score 8 — the most widely used version across credit card issuers, auto lenders, and personal loan companies
• FICO Score 9 — treats paid collections differently (ignores them) and factors in rental payment data
• FICO Score 10 and 10T — the latest versions, with 10T using trended data (24 months of payment patterns rather than just a snapshot)
• Industry-specific scores — FICO creates tailored versions for auto lending (FICO Auto Score) and credit cards (FICO Bankcard Score), which use a 250-to-900 range

FICO calculates your score using five categories with specific percentage weights:

• Payment history: 35%
• Amounts owed (utilization): 30%
• Length of credit history: 15%
• Credit mix: 10%
• New credit: 10%

To generate a FICO score, you need at least one credit account that has been open for six months or more, and at least one account reported to the bureaus within the past six months. If you don't meet those minimums, FICO can't produce a score for you.

FICO creates bureau-specific models, meaning the FICO Score 8 calculated using your Experian data may differ slightly from the one calculated using your TransUnion or Equifax data. This is because each bureau may have slightly different information in your file.

What Is a VantageScore?

VantageScore was created in 2006 by the three major credit bureaus (Equifax, Experian, and TransUnion) as an alternative to FICO. The current version is VantageScore 4.0, released in 2017.

Unlike FICO, VantageScore creates a single tri-bureau model that works the same way regardless of which bureau's data is used. FICO, by contrast, creates slightly different models for each bureau.

VantageScore uses six categories of information, described by their level of influence rather than exact percentages:

• Payment history: extremely influential (roughly 40% in VantageScore 3.0)
• Age and type of credit (credit mix): highly influential
• Credit utilization: highly influential
• Total balances: moderately influential
• Recent credit behavior and inquiries: less influential
• Available credit: less influential

One significant difference: VantageScore can generate a score with as little as one month of credit history and one account on file, compared to FICO's six-month minimum. This means VantageScore can score millions of additional consumers who are new to credit or have thin files.

VantageScore 4.0 also factors in rent, utility, and telecom payments if they're reported to the credit bureaus. This can help consumers who don't have traditional credit products build a score.

Key Differences Between FICO and VantageScore

Minimum Scoring Requirements

FICO requires at least one credit account open for six months and at least one account reported to a bureau within the past six months. VantageScore can score you with one account that's been open for at least one month, or one account reported within the past two years. This makes VantageScore more accessible for people who are new to credit.

How They Treat Late Payments

Both models penalize late payments, but VantageScore 3.0 weighs payment history more heavily (about 40%) compared to FICO's 35%. VantageScore also distinguishes between types of accounts when assessing late payment impact. A missed mortgage payment counts more heavily than a missed credit card payment under VantageScore, while FICO treats late payments more uniformly.

Hard Inquiry Shopping Windows

When you're shopping for a mortgage, auto loan, or student loan, both FICO and VantageScore group multiple inquiries for the same type of loan into a single inquiry to minimize the scoring impact. However, the time windows differ.

FICO uses a 45-day shopping window for mortgages, auto loans, and student loans. VantageScore uses a 14-day window but extends it to all types of credit, including credit cards. According to the CFPB, all mortgage inquiries within about a 45-day window count as one inquiry.

Collection Accounts

The models handle collection accounts differently:

• FICO Score 8 ignores collection accounts where the original balance was under $100, but still factors in all other collections whether paid or unpaid
• FICO Score 9 ignores all paid collection accounts
• VantageScore 3.0 and 4.0 ignore paid collections entirely but include all unpaid collections regardless of the amount

This difference can cause meaningful score gaps. If you have a paid collection account, your VantageScore might be higher than your FICO 8 score.

Score Ranges and "Good" Thresholds

Both FICO (base scores) and VantageScore 3.0/4.0 use a 300-to-850 scale. However, what qualifies as "good" differs slightly:

• FICO: 670+ is "Good," 740+ is "Very Good," 800+ is "Exceptional"
• VantageScore: 700+ is "Good," 750+ is "Excellent," 661-699 is "Fair"

FICO's industry-specific scores (Auto Score, Bankcard Score) use a wider 250-to-900 range.

Alternative Data

VantageScore 4.0 can incorporate alternative data like rent payments, utility bills, and telecom payments if they are reported to the credit bureaus. This is a significant advantage for consumers building credit without traditional credit products.

FICO has also moved in this direction. FICO Score XD was designed to evaluate previously unscorable consumers, and the FICO 10 Suite continues expanding data sources. Experian Boost allows consumers to add utility and streaming service payments to their Experian credit file, which can affect FICO scores calculated from Experian data.

Which Score Do Lenders Actually Use?

FICO dominates. According to Fair Isaac Corporation, 90% of top U.S. lenders use FICO scores when making credit decisions. If you're applying for a mortgage, credit card, auto loan, or personal loan, there's a very high chance the lender is looking at a FICO score.

That said, the specific FICO version varies by industry:

• Mortgages: Historically required FICO Score 2, 4, and 5 (older versions) for loans sold to Fannie Mae and Freddie Mac. The Federal Housing Finance Agency (FHFA) has approved the transition to FICO 10T and VantageScore 4.0 for conventional mortgages.
• Credit cards: Most issuers use FICO Score 8 or the FICO Bankcard Score
• Auto loans: Many use the FICO Auto Score
• Personal loans: Typically FICO Score 8

VantageScore has been gaining market share. The FHFA announced in 2025 that lenders can now use VantageScore 4.0 to originate mortgages sold to Fannie Mae and Freddie Mac, breaking FICO's long-standing monopoly in the conventional mortgage market.

Many free credit score services (Credit Karma, Credit Sesame, NerdWallet) show you a VantageScore rather than a FICO score. This is worth knowing because the number you see on those platforms may differ from the number your lender sees.

Why Are My Scores Different?

It's common to have different credit scores, even at the same point in time. Here's why:

Different scoring models. A FICO Score 8 and a VantageScore 3.0 calculated from the same credit report data will often produce different numbers because they weigh factors differently.

Different bureau data. Not all creditors report to all three bureaus. Your Experian file might show an account that doesn't appear on your TransUnion file. Any score calculated from those different files will reflect different underlying data.

Different model versions. Even within FICO, your FICO Score 8 and FICO Score 9 can differ because the models treat certain items (like paid collections) differently.

Timing differences. Creditors report to bureaus at different times during the month. A score pulled today might reflect a balance that was reported two weeks ago, while a score pulled next week might reflect an updated balance.

According to FICO, it's not unusual for scores to vary by 20 to 50 points across different models and bureaus. Differences of 100+ points between a FICO score and a VantageScore are possible, especially if you have collections or a thin credit file.

Which Score Should You Monitor?

If you want to know what lenders see, focus on your FICO score. It's the one used in the vast majority of lending decisions.

That said, monitoring any credit score is better than monitoring none. VantageScore tracks the same underlying factors. If your VantageScore is going up, your FICO score is almost certainly going up too. The relative direction matters more than the exact number.

Here's a practical approach:

1. Check your actual FICO score through your bank, credit card issuer, or myFICO.com. Many financial institutions provide free FICO scores through the FICO Score Open Access program.
2. Use free VantageScore services (Credit Karma, etc.) for frequent monitoring and trend tracking.
3. Pull your actual credit reports from AnnualCreditReport.com (free weekly) to check for errors. The reports are what both scores are built from, so keeping them accurate improves all your scores.

The Mortgage Scoring Shift

For decades, conventional mortgages sold to Fannie Mae and Freddie Mac required specific older FICO score versions (FICO Score 2 from Experian, FICO Score 4 from TransUnion, and FICO Score 5 from Equifax). This meant borrowers needed to check these specific versions when preparing for a mortgage.

The FHFA approved moving to FICO 10T and VantageScore 4.0 for conventional loans. This shift allows lenders to choose between the two scoring models and could expand mortgage access. VantageScore estimates that up to 5 million additional borrowers could qualify for conventional mortgages under the new scoring framework.

This is a significant change for consumers. VantageScore 4.0's ability to score thinner credit files and incorporate alternative data like rent payments could benefit borrowers who have been historically underserved by traditional scoring.

The Bottom Line

A FICO score and a credit score aren't different things. A FICO score is a type of credit score, and it's the one most lenders use. VantageScore is the main alternative, and it's gaining ground, especially with the recent changes in mortgage lending.

The actions that improve your score are the same regardless of which model you're looking at: pay on time, keep credit card balances low, don't open accounts you don't need, and check your credit reports for errors. Both FICO and VantageScore reward the same responsible credit behavior.

For a deeper look at what makes up your score, read our complete guide to FICO scores. To see where your current score falls, check our FICO score ranges breakdown. And if you want to start improving your score today, here are 15 strategies that actually work.

Frequently Asked Questions

Is a FICO score the same as a credit score?

A FICO score is a type of credit score, but "credit score" is a broader term that includes VantageScore and other models. When people say "credit score" casually, they usually mean their FICO score, since that's what 90% of top lenders use for credit decisions.

Why is my Credit Karma score different from my FICO score?

Credit Karma shows your VantageScore 3.0, not your FICO score. VantageScore and FICO use different weighting systems, treat collections differently, and have different minimum scoring requirements. Differences of 20 to 50 points are common, and larger gaps are possible.

Which credit score do mortgage lenders use?

Conventional mortgages have historically used specific older FICO score versions. The FHFA has approved FICO 10T and VantageScore 4.0 for loans sold to Fannie Mae and Freddie Mac. FHA loans use specific FICO versions, and VA loans vary by lender. Ask your mortgage lender which score version they use.

Does checking my credit score hurt my FICO score?

No. Checking your own credit score or credit report is a soft inquiry and has zero effect on any credit score. Only hard inquiries from credit applications can affect your score, and even those typically cause a small, temporary drop of fewer than five points.

Can I have a FICO score and no VantageScore, or vice versa?

Yes. FICO requires at least six months of credit history, while VantageScore can generate a score with one month. If you're brand new to credit, you might have a VantageScore but not yet qualify for a FICO score. Conversely, if you haven't had any account activity reported in the past two years, you might lose your VantageScore but still have a FICO score.

How many credit scores do I have?

More than you might think. You have a FICO score (multiple versions) calculated from each of the three bureau files, plus VantageScore versions from each bureau. You could easily have 20+ different credit scores at any given time. There's no single "real" score. The one that matters most is whatever version your specific lender uses.