FICO vs. VantageScore: Why Your Scores Don't Match

FICO and VantageScore don’t match because they’re different formulas, built by different companies, and often fed by different bureaus’ data on different days. That’s the core of FICO vs VantageScore. One person can easily have a dozen legitimate scores, and the one a lender uses is usually not the one in your phone.

Below are the six specific reasons the numbers drift apart. Hold your own gap up against them and you can usually tell which one is doing the work.

Two companies, a lot of scores

FICO (originally Fair, Isaac and Company) released its first general-purpose credit score in 1989. FICO says its scores are used by 90% of top U.S. lenders. The company doesn’t make one score, though. It makes versions: FICO Score 8, FICO Score 9, the industry-specific Auto and Bankcard scores, and the older “Classic” mortgage versions. myFICO keeps a list of the FICO Score versions in use, and it’s longer than most people expect.

VantageScore came along in 2006, created jointly by Equifax, Experian and TransUnion. VantageScore 3.0 (2013) is the version most free credit apps show, including Credit Karma. VantageScore 4.0 (2017) is the newer model, built to use trended data.

Both modern versions use a 300 to 850 range, which causes half the confusion. Same scale, so people assume it’s the same score. A 700 on one isn’t a 700 on the other in any precise sense.

Even the labels differ. FICO’s bands call 580 to 669 “fair” and 670 to 739 “good.” VantageScore’s own tiers call 661 to 780 “prime” and 601 to 660 “near prime.” So a 665 is “fair” to FICO and “prime” to VantageScore. Same three digits, two verdicts.

FICO vs VantageScore: where the numbers split

1. Different data going in

A score is calculated from one bureau’s file at one moment. Your Equifax and TransUnion files aren’t identical, because not every lender reports to every bureau, and they don’t all report on the same day. If your app shows a VantageScore from TransUnion on the 3rd and a lender pulls a FICO Score from Experian on the 19th, you’re comparing two models running on two different snapshots. Some of the gap has nothing to do with the formula at all.

2. Different weights

FICO publishes general category weights: payment history 35%, amounts owed 30%, length of history 15%, new credit 10% and credit mix 10%. VantageScore’s own breakdown for 3.0 is payment history 40%, depth of credit 21%, utilization 20%, balances 11%, recent credit 5% and available credit 3%. The categories don’t even line up one-to-one, so the same high card balance gets punished through slightly different doors.

3. Different rules for thin files

FICO generally needs at least one account that’s been open six months and at least one account reported in the last six months before it’ll produce a score. VantageScore can score a file with as little as one month of history, and it’ll still score someone whose only account last reported up to 24 months ago. So a young adult with one four-month-old card can have a VantageScore and no FICO Score at all, a gap of “a number” vs “nothing.” (More on this in our post about thin credit files.)

4. Different treatment of collections

This one creates the biggest surprises. VantageScore 3.0 and 4.0 ignore collection accounts that have been paid. FICO Score 9 ignores paid third-party collections too. But the Classic FICO versions mortgage lenders use, including FICO® Score 4, still count a paid collection. Pay off a $600 collection from an old cable bill and it can stop mattering to your VantageScore while it keeps weighing on the score your mortgage lender sees. (Medical collections are a separate story: paid ones have been dropped from credit reports entirely since 2022.)

5. Different inquiry windows

VantageScore treats all hard inquiries within a 14-day period as one, whatever kind of credit they were for. FICO groups only mortgage, auto and student loan inquiries, using a 14-day window on older versions and 45 days on newer ones. A card application counts on its own under FICO no matter when it happens. Our soft pull vs. hard pull breakdown has a worked example.

6. Different memory

Newer models like VantageScore 4.0 look at trended data, meaning how your balances moved over many months, not just the latest statement. Older models read one snapshot. If you paid a card down from $8,000 to $1,500 last month, a snapshot model rewards the low balance immediately, and a trended model also sees that it was high for a while.

A gap, taken apart

Take Devon, a fictional borrower. Before applying for a mortgage he opens his credit app and sees VantageScore 3.0 scores of 724 from TransUnion and 718 from Equifax. His lender pulls the Classic FICO set and gets 691 (Experian), 699 (TransUnion) and 688 (Equifax). The lender uses the middle one: 691.

Three things most likely explain the 33 points:

• A collection from an old phone bill that he paid off two years ago. VantageScore ignores it. The Classic FICO scores still count it.
• The Experian score, which his app never showed him, sees a store card he forgot about that reports only to Experian, with one late payment on it.
• He applied for a store card and a car loan in the same week. VantageScore counted them as one inquiry. FICO counted the store card separately.

Every one of those numbers is accurate for the question its model asks.

Which score will a lender actually use?

Depends on what they’re lending.

Mortgages. Conventional mortgage lenders pull one Classic FICO Score from each bureau: FICO Score 2 from Experian, FICO Score 5 from Equifax and FICO Score 4 from TransUnion. They generally use the middle score, and for joint applications the lower of the two borrowers’ middle scores. In October 2022, the Federal Housing Finance Agency announced it had validated FICO 10T and VantageScore 4.0 for loans sold to Fannie Mae and Freddie Mac, but switching is a multiyear project, and for now the Classic set is what lenders run. We explain each one in FICO 2, 4 and 5 for mortgages.

Auto loans. Many auto lenders use FICO Auto Scores, which run from 250 to 900 and weigh past car loans more heavily. Some use base FICO 8. Some use VantageScore.

Credit cards. Issuers mix it up: FICO 8, FICO Bankcard Scores, VantageScore, or their own internal models layered on top.

Landlords and small lenders. Anything goes. Ask which score they’re looking at. Most will tell you.

This mismatch isn’t new. Back in 2012, the CFPB’s analysis of consumer- and creditor-purchased scores estimated that about one in five consumers would likely see a meaningfully different score from the one a lender would use.

Credit Karma is answering a different question

Credit Karma shows VantageScore 3.0 scores from TransUnion and Equifax. It’s a good free tool for watching the direction your credit is moving and catching new accounts or errors fast. The number just isn’t the one a mortgage lender pulls. We wrote a whole post on why a Credit Karma score differs from a lender’s, and our Why FICO Score 4 page has a side-by-side table.

What to do with the gap

Treat your app score as a trend line, not a quote. If it’s climbing steadily, your FICO Scores are very likely climbing too, even if they sit at a different level.

Before a big application, find out which score the lender uses and check that one, or something close to it. For a mortgage, the TransUnion FICO Score 4 is one of the three numbers that will decide your rate.

Then look at the actual reports, not just the score. Free copies are at AnnualCreditReport.com. An old collection, a card you forgot, or an address that isn’t yours will explain more about a gap than any article.

And if you want to know what moves both models in the same direction, the overlap is large: pay on time, keep card balances low relative to limits (our credit utilization guide has the numbers), and don’t open accounts in a cluster right before you need a loan. Do those three things and the brand of the score matters a lot less. For what counts as “good” on each scale, see what is a good credit score.

If you’re on the other side of the desk, a landlord or lender trying to size someone up, the same logic applies in reverse. Don’t ask an applicant for a screenshot of their app score and treat it like a FICO Score. Get the score your decision is actually based on, with their permission.