Out-of-Pocket Maximum Calculator

Calculator Inputs

Coverage

Family mode uses combined totals.

Deductible ($)

Out-of-pocket limit ($)

Coinsurance after deductible (%)

Monthly premium ($, optional)

Premiums do not count toward the limit.

Employer funding ($, optional)

HSA/FSA contribution ($, optional)

Copay-based utilization

Copays add to your spending and typically apply to the limit.

Primary care visits (count)

Primary care copay ($)

Specialist visits (count)

Specialist copay ($)

Urgent care visits (count)

Urgent care copay ($)

Emergency room visits (count)

Emergency room copay ($)

Prescription copays

Generic fills (count)

Generic copay ($)

Preferred brand fills (count)

Preferred brand copay ($)

Non-preferred brand fills (count)

Non-preferred brand copay ($)

Specialty fills (count)

Specialty copay ($)

Allowed charges that apply to deductible and coinsurance

Enter negotiated, in-network allowed amounts you expect this year.

Other services allowed ($)

Office procedures, therapy, outpatient care.

Imaging & labs allowed ($)

Hospital/inpatient allowed ($)

Tip: Use totals that match your plan’s in-network rules.

Scenario	Deductible	Coinsurance	Limit	Allowed charges	Copays	Estimated member cost
Light use	$1,000	20%	$6,500	$800	$180	$980
Moderate use	$1,500	20%	$7,000	$4,000	$420	$2,220
High outpatient	$2,500	30%	$8,500	$12,000	$600	$6,450
Hospital event	$3,000	20%	$9,000	$30,000	$900	$9,000
Near limit	$2,000	40%	$7,500	$18,000	$1,200	$7,500

Example rows show typical patterns, not plan-specific guarantees.

The calculator models your annual cost accumulation using three components:

Deductible paid = min(AllowedEligible, Deductible)
Coinsurance paid = max(0, AllowedEligible − Deductible) × Coinsurance%
Copays total = Σ(Count × Copay)

Total member cost = Deductible paid + Coinsurance paid + Copays total, capped at the out-of-pocket limit: min(Total member cost, Out-of-pocket limit). Premiums are shown separately for budgeting.

Enter your deductible, coinsurance percent, and out-of-pocket limit.
Add expected copay events like visits and prescriptions.
Enter expected in-network allowed charges for major services.
Press Calculate to see totals and the graph.
Export CSV or PDF to compare plans side-by-side.

Deductible and coinsurance dynamics

Most plans require you to pay allowed charges up to the deductible before coinsurance begins. If your deductible is $1,500 and you model $4,000 of deductible-eligible allowed spending, the first $1,500 is paid in full. The remaining $2,500 is multiplied by the coinsurance rate, such as 20%, adding $500. Split allowed charges into imaging, hospital, and other buckets to mirror your claims history; using in-network negotiated amounts improves realism and keeps the deductible calculation aligned with plan rules.

Copays and fixed-cost pressure

Copays behave like predictable, per-event costs and often count toward the out-of-pocket limit. For example, 4 primary care visits at $30 plus 2 specialist visits at $60 produces $240. Twelve generic prescription fills at $15 adds $180, so fixed copays can exceed $400 before any coinsurance applies.

Reaching the limit and marginal cost

Your total cost is capped at the limit, so the curve flattens once you reach it. With a $7,000 limit, $6,800 already accumulated means only $200 more is payable even if additional allowed charges occur. That change in marginal cost is why modeling large, rare events like inpatient stays matters for budgeting.

Family aggregation and embedded limits

Family coverage commonly uses combined spending, but some plans also apply embedded individual limits. This calculator can estimate an embedded view by assigning a cost share to the highest-spend member, such as 60%. If the family limit is $12,000 and the embedded limit is $8,000, one person may stop paying earlier than the family total.

Using exports for plan comparison

Use the CSV export to capture the exact inputs, assumptions, and results for multiple scenarios. When comparing plans, keep premiums separate because they do not usually count toward the limit. A plan with a higher premium can still be cheaper if it reduces coinsurance exposure or lowers the limit. The PDF report is useful for discussions with benefits teams or brokers during open enrollment decisions.

1) What is an out-of-pocket maximum?

It is the most you pay in a plan year for covered in-network cost sharing, such as deductible, coinsurance, and many copays. After you reach it, covered services are typically paid at 100%.

2) Do premiums count toward the maximum?

Usually no. Premiums are separate from cost sharing and do not reduce your out-of-pocket limit. This calculator shows premiums as an optional budget item, not as part of the capped total.

3) Why does the graph flatten at the top?

The curve is capped by the out-of-pocket limit. Once your modeled cost reaches that limit, additional allowed spending will not increase your member cost in the graph, reflecting the plan’s annual cap.

4) Should I enter billed charges or allowed amounts?

Use in-network allowed amounts whenever possible. Allowed amounts better match how deductibles and coinsurance are calculated. If you only have billed estimates, consider discounting them to approximate negotiated rates.

5) Do copays always apply to the maximum?

Many plans count copays toward the limit, but some services may be excluded or subject to special rules. If your plan excludes a category, set that copay count to zero and model it separately.

6) How should families use this calculator?

Enter combined family usage for an aggregate estimate. If your plan has embedded individual limits, enable the embedded estimate and set the individual deductible and limit. Use the cost-share percentage to approximate a highest-spend member.