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Professional Liability Expected Claim Calculator

The Professional Liability Expected Claim Calculator estimates the expected annual insurer-paid amount for a modeled professional liability loss. It combines an annual claim probability with a representative covered loss, then applies the deductible and policy limit to the claim payout.

The estimate is useful for scenario analysis when comparing risk transfer, retention, or insurance cost. It does not forecast an individual lawsuit and it cannot reflect every claims-made condition, defense-cost provision, exclusion, sublimit, or settlement pattern found in professional liability policies.

Inputs

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$
$
$
Result
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Expected insurer-paid amount per year
Insurer payout if claim occurs—
Business-retained loss if claim occurs—
Expected covered loss before insurance—
Modeled share transferred to insurer—

1. Set annual claim probability
Enter the estimated chance that one modeled covered professional-liability claim occurs during a year.

2. Enter loss severity
Use the covered loss amount you want to model before insurance payments.

3. Apply the retention
Enter the deductible or self-insured retention that applies to the claim scenario.

4. Enter the available limit
Use the policy limit available to the modeled claim, not an unrelated total policy amount.

5. Review expected transfer
The main result multiplies the modeled insurer payout by the annual probability.

Formula: Insurer payout if claim occurs = min(max(Covered loss − Deductible, 0), Policy limit) Expected insurer-paid amount = Claim probability × Insurer payout

Where:

  • Claim probability — annual probability expressed as a decimal in the calculation
  • Covered loss — modeled covered claim amount before insurance, dollars
  • Deductible — business-retained amount before insurer payment, dollars
  • Policy limit — maximum modeled insurer payment available to the claim, dollars

Assumptions: The model uses one representative claim scenario and does not model multiple claims, aggregate erosion, defense-cost treatment, exclusions, or coverage disputes.

What the result means

Probability-weighted results are scenario estimates, not forecasts of actual claims.

Review the actual policy, quote, endorsements, exclusions, limits, and applicable requirements before making an insurance decision.

Given:

  • Annual covered-claim probability: 8%
  • Covered loss: $75,000
  • Deductible: $5,000
  • Available policy limit: $1,000,000

Calculation:
Claim payout = min(75,000 − 5,000, 1,000,000) = $70,000. Expected insurer-paid amount = 0.08 × 70,000 = $5,600.

Result:
Expected insurer-paid amount: $5,600 per year.

This is a probability-weighted planning value; an actual year would not normally produce exactly $5,600 of claim payment.

Why is the expected value smaller than the claim payout?

The claim payout is conditional on the modeled claim occurring. The expected annual value weights that payout by the probability you entered.

Can I use a self-insured retention instead of a deductible?

You can model the retained dollar amount mathematically, but deductibles and self-insured retentions can operate differently under actual policy terms. Confirm the policy mechanics before using the result for a purchase decision.

What happens when the loss exceeds the policy limit?

The modeled insurer payout is capped at the entered limit. Any remaining modeled loss is shown as retained by the business.

Does this include several claims in one year?

No. It treats the input as a single representative claim event with an annual occurrence probability. A frequency-severity model is more appropriate when multiple claims are expected.

Can I compare this expected claim value directly with premium?

It can be one input to a broader comparison, but premium also pays for risk transfer, defense and policy services subject to terms. Expected claim value alone is not a complete measure of insurance value.