Patient Responsibility Calculator

What this calculator shows

Patients ask what a visit will cost them, and front desks need a careful, honest way to answer. This calculator builds a simple estimate from the allowed amount and the three moving parts of most plans: a copay, a deductible, and coinsurance after the deductible. Enter the allowed amount for the service, not your billed charge; allowed amounts come from your payer contract.

Read the disclaimer under the result before quoting anyone. This is an educational estimate built on a simplified order of operations, and real plans apply these pieces in different orders.

How the calculation works

Simplified model: deductible applied = the smaller of the remaining deductible and the allowed amount. Coinsurance = (allowed - deductible applied) x coinsurance percentage. Patient estimate = copay + deductible applied + coinsurance. Plan estimate = allowed - patient estimate, floored at zero.

How to read your result

Actual responsibility depends on the patient's specific benefits, whether the deductible was already met, out-of-pocket maximums, how the payer sequences copay against deductible, and final claim adjudication. Verify benefits before quoting: that check is our eligibility verification service, and for therapy practices our guide to the good faith estimate explains the written-estimate rules that apply to self-pay patients.

Looking for another measure? See all medical billing calculators or the formulas collected in our medical billing KPIs guide.

Before you rely on the number

Results are estimates for educational and operational planning, built from the figures you enter. They are not guarantees of reimbursement, savings or recovery, and they do not replace a review of your own claims, contracts and remittances. Do not enter patient-identifiable or protected health information: this calculator runs in your browser and nothing you type is stored or sent anywhere.