Learn · Nov 9, 2026 · Not legal advice
EOB vs. bill: which one do you actually owe?
An explanation of benefits (EOB) is your insurer’s summary of a claim, and it isn’t a bill. The provider’s bill is what asks for payment. Compare your share on the EOB with the amount the bill asks for, and ask about any difference.
What each one is
- EOB: from your insurer. Shows billed amount, plan discount, what the plan paid and what you may owe.
- Bill: from the provider. Shows what they’re asking you to pay.
Compare these lines
- Date of service and provider name match.
- “Patient responsibility” on the EOB equals the amount due on the bill.
- Your earlier payments appear as credits.
If they differ
My EOB shows $X as my share, but the bill asks for $Y. Which claim decision are you using, and can you send an itemized statement?
Bills sometimes arrive before the claim is processed. If the EOB says “this is not a bill” and the claim is still pending, ask when it will finish.
Common questions
Is “amount billed” what I owe?
No. That is the provider’s list price. Your share depends on your plan and the allowed amount.