Credit Karma vs. Your FICO Score: Why They're Different

Two scores from the same data — and lenders usually care about one

If you've checked a free score online (Credit Karma, your bank's app, a monitoring service) and then had a lender pull your score, you may have seen different numbers — sometimes tens of points apart. This isn't an error; it's usually the difference between two scoring models built from the same underlying credit report.

The two models

• FICO® Score — the model used in the vast majority of lending decisions (mortgages, auto loans, credit cards). It's what most lenders actually buy when deciding whether to approve you.
• VantageScore — a competing model (often the one behind free consumer scores). It uses similar factors but weighs them differently and can generate a score with less history.

Both pull from the same data on your Experian, TransUnion, or Equifax report, but they apply different formulas — so the same report yields different numbers.

Why the gap exists

• Different weights: e.g., VantageScore historically weights recent and collection-paid items differently than FICO does.
• Different bureaus: scores vary by which bureau's data is used, because each bureau's file can differ slightly.
• Different versions: each model has multiple generations (FICO 8, FICO 9, VantageScore 3.0, 4.0), and lenders pick different ones.

Which one matters?

For a major application — especially a mortgage — the FICO® Score is almost always what the lender uses (mortgages often use specific older FICO versions). The free VantageScore from an app is a useful trend indicator (is your score rising or falling?) but not the exact number a lender will see.

Practical take: use free scores to track direction and catch changes (a sudden drop signals a problem worth investigating). Before a major application, buy the relevant FICO® Score or ask the lender which model they pull, so you're optimizing the right number.