Why Your Credit Karma Score Doesn't Match What Your Lender Sees
A gap of a few points or a few dozen isn't a mistake. It usually comes down to three things: the scoring model, the bureau, and the date.
⚡ Quick Answer
Credit Karma shows a VantageScore 3.0 built from your TransUnion and Equifax data. Most lenders use a FICO version, and mortgage lenders typically use older FICO versions, possibly pulled from Experian or all three bureaus on a different day. Different formula plus different data plus different timing equals a different number.
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You check Credit Karma, see one number, apply for a car loan or mortgage, and the lender quotes you something different. Nothing is broken. Credit Karma and your lender are almost always looking at different scores built from different data. Once you know the three reasons, you can figure out which number actually matters for your next application.
Reason 1: A different scoring model
Credit Karma shows VantageScore 3.0, a model created by the three bureaus. Lenders mostly use FICO Scores, and there isn't just one FICO Score. According to myFICO:
- FICO Score 8 is "the most widely used version" among lenders.
- Mortgages typically use FICO Score 2 (Experian), FICO Score 4 (TransUnion) and FICO Score 5 (Equifax).
- Auto lenders often use FICO Auto Scores 8 or 9, which are industry-specific versions.
- Card issuers often use FICO Bankcard Scores 8 or 9, or base FICO 8 or 9.
- FICO Score 10 and 10T are available to lenders, but each lender decides which version to use and when to upgrade.
Each model weighs the same report differently. For example, myFICO notes that FICO 9 ignores paid third-party collections and treats unpaid medical collections as less harmful, while older versions don't. So a paid collection could weigh on one score and not another. Our FICO vs VantageScore guide covers the design differences in more depth.
What changed for mortgages in 2026
On April 22, 2026, FHFA and HUD announced that Fannie Mae, Freddie Mac and FHA would accept VantageScore 4.0 and FICO Score 10T. As of this writing, VantageScore 4.0 is available only to approved lenders in a limited rollout, FICO 10T is set to follow later, and lenders outside the rollout keep using Classic FICO. Note that VantageScore 4.0 is not the same as the 3.0 version Credit Karma shows. If you're shopping for a mortgage, ask the lender which model it uses.
Reason 2: A different bureau
Credit Karma's VantageScore uses your TransUnion and Equifax files. Your lender may pull Experian, or all three for a mortgage. Creditors don't all report to every bureau, so your three reports are rarely identical. A collection that appears only on Experian, or a new card that hasn't reached TransUnion yet, will move one score and not the others.
Reason 3: Different timing
Scores are calculated from whatever is on the report at that moment. Card issuers usually report your statement balance once a month, on their own schedule. If Credit Karma refreshed before your big balance reported and the lender pulled after, you'll see a gap that's purely timing. Our explainer on statement date vs due date shows how to time payments so a low balance is what gets reported.
Quick reference: which score is which
| Where you see it | Model | Bureau data | Typically used for |
|---|---|---|---|
| Credit Karma | VantageScore 3.0 | TransUnion and Equifax | Monitoring and trends |
| Many card issuer and bank apps | Often a FICO version (check the label) | Varies by provider | Monitoring |
| Credit card application | Often FICO 8, Bankcard 8 or 9 | Issuer's choice | Approval and limit |
| Auto loan | Often FICO Auto Score 8 or 9 | Lender's choice | Rate and approval |
| Mortgage | Classic FICO 2, 4, 5; VantageScore 4.0 in the limited 2026 rollout | Often all three | Pricing and eligibility |
How to find the score your lender will actually use
- Ask the lender directly: which bureau or bureaus it pulls, and which model and version it uses.
- Pull that bureau's full report for free at AnnualCreditReport.com, where weekly free reports are now permanent according to the credit bureaus' trade group. Check it for accounts or balances that aren't on your Credit Karma view.
- Look for a free FICO Score. Many banks and card issuers show one, and the label tells you the version and bureau. Our guide to checking your score free lists the main options.
- Check timing. If you just paid down a card, wait for the next statement to report before you apply.
- Read any notice you get. If a lender denies you or offers worse terms based on your credit, the notice it sends should identify the credit bureau it used, and in many cases the score as well.
- Dispute errors on that specific bureau's report if anything is wrong. Errors can sit on one bureau and not the others.
✓ Use each number for what it's good at
Credit Karma is useful for spotting changes, such as a new account, a new inquiry or a balance spike, between full report checks. For a big application, base your expectations on the model and bureau your lender actually uses.
Common gap patterns and what they usually mean
| What you notice | Most likely explanation | What to check |
|---|---|---|
| Credit Karma is higher than the lender's mortgage score | Different model: Classic FICO versions weigh some items differently than VantageScore 3.0 | The lender's notice and the bureau it used |
| One bureau is far lower than the other two | Something is on that report and not the others | Pull that bureau's report and look for collections, lates or unknown accounts |
| Scores moved in opposite directions this month | Balances reported on different days to different bureaus | Statement dates and reported balances on each card |
| You paid off a collection and only some scores improved | Some models ignore paid collections (FICO 9, per myFICO), others don't | Which version your lender uses |
| A new account shows on one report but not another | The creditor doesn't report to every bureau, or hasn't reported yet | Wait a cycle, then check again |
Most of these resolve once you compare the same bureau and the same model. If one report has something the others don't and it's wrong, that's a dispute, not a scoring quirk. Our guide to how scores work explains which factors move each score the most.
Before a mortgage application specifically: give yourself time. Fixing a reporting error or paying down balances can take more than one reporting cycle to show up. Checking the bureau and model your lender uses a few months ahead leaves room to act.
How big should the gap be?
There's no official "normal" gap, because the models use different formulas and the reports can hold different data. What deserves a closer look is a gap that suddenly widens, or one bureau sitting far below the other two. That usually means something is on one report and not the others: a collection, a late payment, an account that isn't yours, or a lowered credit limit.
⚠️ Don't pay for a 'lender score' unless you need it
If you're months away from a mortgage, it can be worth seeing the classic FICO versions mortgage lenders use. For everyday monitoring, free tools are enough. Our free mortgage readiness assessment helps you decide whether you're at that stage.
Keep an eye on changes for free
Credit Karma is free, shows VantageScore 3.0 from TransUnion and Equifax with weekly updates, and requires no credit card. Use it to spot new accounts and balance changes between full report checks.
Check Your Free Score on Credit Karma →Affiliate link: we may earn a commission if you sign up, at no cost to you.
Frequently Asked Questions
Why is my Credit Karma score higher than my FICO score?
Credit Karma shows VantageScore 3.0 from TransUnion and Equifax, while lenders often use a FICO version, sometimes from a different bureau and on a different date. Different formulas and different data produce different numbers, and neither is wrong.
Which credit score do mortgage lenders use?
According to myFICO, mortgage lenders typically use FICO Score 2, 4 and 5. In April 2026 FHFA and HUD began a limited rollout allowing VantageScore 4.0 for Fannie Mae, Freddie Mac and FHA loans, with FICO 10T to follow, so ask your lender which model it uses.
Is Credit Karma accurate?
It accurately shows a VantageScore 3.0 based on your TransUnion and Equifax data. It just isn't the same score most lenders use, so treat it as a monitoring tool rather than a prediction of a lender's number.
How do I see the exact score a lender used?
Ask the lender which bureau and model it uses, then check that bureau's report. If you are denied or offered worse terms based on your credit, the notice you receive should identify the credit bureau and, in many cases, the score.
Should I dispute a difference between my scores?
No. Score differences alone are not errors. Dispute only inaccurate information on a report, such as an account that is not yours or a wrong balance or date.
The Bottom Line
A different number at the lender doesn't mean Credit Karma is wrong. It's a different model, often from a different bureau, calculated on a different day. Use Credit Karma to watch for changes. Before a big application, find out which model and bureau your lender uses, check that report, and fix anything inaccurate first.