Plan Inputs
Example Data Table
These are sample inputs and typical estimates for a mid-year plan.
| Service | Allowed (per unit) | Qty | Copay | Deductible? | Coinsurance? |
|---|---|---|---|---|---|
| Primary Care Visit | 150.00 | 1 | 25.00 | No | No |
| Imaging / Lab | 600.00 | 1 | 0.00 | Yes | Yes |
| Generic Prescription | 40.00 | 1 | 10.00 | No | No |
Formula Used
- AllowedTotal = AllowedPerUnit × Quantity
- CopayTotal = min(CopayPerUnit × Quantity, AllowedTotal)
- Remaining = max(AllowedTotal − CopayTotal, 0)
- DeductiblePaid = min(Remaining, DeductibleRemaining) when enabled
- CoinsurancePaid = RemainingAfterDeductible × (CoinsuranceRate ÷ 100) when enabled
- PatientBeforeCap = CopayTotal + DeductiblePaid + CoinsurancePaid
- PatientPays = min(PatientBeforeCap, OutOfPocketRemaining)
- PlanPays = AllowedTotal − PatientPays
How to Use This Calculator
- Set your currency, coinsurance rate, and remaining plan amounts.
- Add one row per visit, prescription, or billed service.
- Enter the allowed amount and quantity for each item.
- Confirm the copay, or override it for your plan.
- Enable deductible or coinsurance only when they apply.
- Press calculate to see totals and line-item breakdowns.
- Use the export buttons to download CSV or PDF.
Cost-sharing order shapes your estimate
Most plans apply cost sharing in a predictable sequence: copay first, then deductible, then coinsurance, while an out-of-pocket cap limits what you ultimately pay. This calculator follows that order so each line item can behave like a claim. For example, a $25 primary care copay on a $150 allowed visit means $125 remains for other rules, if they apply.
Deductible remaining changes mid-year results
When deductible remaining is high, more of the post-copay amount becomes patient-paid. Suppose you have $500 remaining and a $600 imaging charge with no copay. If deductible is enabled, up to $500 is assigned to deductible, leaving $100 for coinsurance. As deductible reaches zero, the same service shifts more cost to the plan.
Coinsurance amplifies larger allowed amounts
Coinsurance is a percentage of the remaining allowed amount after copay and deductible. At 20%, a remaining $400 produces $80 coinsurance; at 30%, it becomes $120. Because coinsurance scales with the allowed amount, it matters most for labs, imaging, outpatient procedures, and specialty care where allowed totals are larger.
Out-of-pocket remaining is a risk control lever
The out-of-pocket remaining input acts like a ceiling on additional cost sharing. If your remaining cap is $200 and a set of services would normally total $310, the calculator limits patient responsibility to $200 and assigns the balance to plan payment. This is useful for planning late-year utilization after you have nearly reached your maximum.
Using exports to support budgeting conversations
After you calculate, export the breakdown to CSV for spreadsheets or to PDF for sharing with family members, providers, or benefits teams. The line-item view helps you spot which services are driving exposure, compare scenarios with different coinsurance rates, and test the impact of splitting services across months or scheduling after deductible is met. For best accuracy, use insurer-negotiated allowed amounts and note whether each item is subject to deductible or copay only.
FAQs
What is an allowed amount, and why use it?
The allowed amount is the negotiated price your plan recognizes for a service. Billing charges can be higher. Using allowed amounts produces more realistic patient and plan estimates for deductible, coinsurance, and copay calculations.
Should copay be entered per visit or per claim?
Enter copay per unit, such as one office visit or one prescription fill. The calculator multiplies copay by quantity and limits it so it never exceeds the allowed total for that item.
When should I enable the deductible checkbox?
Enable it for services subject to deductible, often imaging, outpatient procedures, or certain specialist services. Leave it off for items that are copay-only or not covered by deductible in your plan design.
How does coinsurance interact with copay?
Coinsurance applies after copay and any deductible portion, and it is calculated on the remaining allowed amount. If coinsurance does not apply to an item, disable it to keep the estimate aligned.
What does out-of-pocket remaining mean here?
It is the maximum additional cost sharing you can pay this year. If the estimated patient total exceeds that remaining amount, the calculator caps patient responsibility and assigns the rest to plan payment.
Why might my insurer’s explanation of benefits differ?
Claims can include multiple components, network rules, modifiers, and coverage limits. Some copays are waived, some services bundle together, and timing affects deductible status. Use this tool for planning, then confirm with your insurer’s published benefits.