Copay and Deductible Calculator

Calculator Inputs

Enter plan details and service estimates. Results appear above this form after you calculate.

Allowed amount per service

Billed amount per service

Number of services or visits

Annual deductible total

Deductible already met

Copay per service

Coinsurance percent after deductible

Annual out-of-pocket maximum

Out-of-pocket already spent

Apply copay before deductible?

Does copay count toward OOP max?

Does deductible apply to this service?

Reset

Example Data Table

Scenario	Allowed Per Visit	Visits	Deductible Total	Deductible Met	Copay	Coinsurance	OOP Max
Primary care follow-up	$140.00	3	$1,200.00	$600.00	$25.00	15%	$4,500.00
Specialist therapy session	$180.00	4	$1,500.00	$400.00	$35.00	20%	$5,000.00
Imaging visit estimate	$600.00	1	$2,000.00	$1,250.00	$75.00	10%	$6,500.00

Formula Used

1) Deductible remaining
Deductible Remaining = Total Deductible − Deductible Already Met

2) Allowed total
Allowed Total = Allowed Amount per Service × Number of Services

3) Deductible portion for this estimate
Deductible Paid = Lesser of Remaining Allowed Charge, Remaining Deductible, and Remaining OOP Allowance

4) Coinsurance amount
Coinsurance Paid = Remaining Allowed Charge × Coinsurance Rate

5) Patient total
Patient Cost = Copay + Deductible Paid + Coinsurance Paid

6) Insurer total
Insurer Payment = Allowed Amount − Patient Cost Components Within Allowed Charges

7) Out-of-pocket limit control
Once your remaining out-of-pocket allowance reaches zero, additional covered allowed charges are shifted to the insurer estimate.

This model estimates common in-network claim behavior. Real plans can vary, especially for preventive care, pharmacy benefits, emergency services, and services with special copay rules.

How to Use This Calculator

Enter the insurer’s allowed amount for one visit or service.
Add the billed amount if you want to compare billed versus allowed charges.
Input the number of services you expect to receive.
Enter your annual deductible and how much you already met.
Set the copay amount and post-deductible coinsurance rate.
Enter your out-of-pocket maximum and the amount already spent.
Choose whether copay comes before deductible and whether it counts toward the out-of-pocket maximum.
Press Calculate to see totals, service-by-service results, and the chart above the form.

FAQs

1. What is the difference between a copay and a deductible?

A copay is a fixed amount you pay for a visit or service. A deductible is the amount you must pay first before many services begin sharing costs with your insurer.

2. Does the billed amount matter if the allowed amount is lower?

Yes. The billed amount helps you compare provider charges with the insurer’s allowed amount. Covered in-network cost sharing is usually based on the allowed amount, not the original billed charge.

3. What does coinsurance mean in this calculator?

Coinsurance is your percentage share of covered charges after deductible rules are applied. For example, 20% coinsurance means you pay 20% and the insurer pays 80% of the remaining allowed amount.

4. Why might my real claim differ from this estimate?

Actual claims may include non-covered services, plan exclusions, referral rules, preventive care exceptions, separate pharmacy deductibles, or special pricing rules. This tool is best for structured planning, not final adjudication.

5. What happens after I reach my out-of-pocket maximum?

For covered in-network services, the plan often pays 100% of the allowed amount after you hit the out-of-pocket maximum. This calculator caps additional patient cost once that limit is reached.

6. Do all services apply to the deductible?

No. Some plans exclude certain services from the deductible, especially preventive care or visits with fixed copays. That is why this calculator lets you choose whether the deductible applies.

7. Does every plan count copays toward the out-of-pocket maximum?

Many plans do, but not all benefit structures work identically. This option is adjustable because summary plan documents can define whether specific copays count toward your annual maximum.

8. Can this calculator help compare care options?

Yes. Change the allowed amount, visit count, and cost-sharing settings to compare likely patient responsibility across providers, treatment frequency, or timing before and after your deductible is met.