Subrogation Recovery Estimator
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Subrogation Recovery Estimator
Estimates the net subrogation recovery an insurer can expect after pursuing a third-party tortfeasor, accounting for comparative fault, legal/investigation costs, and deductible reimbursement obligations.
Total Claim Paid by Insurer ($)
Total indemnity + expenses paid on the claim
Insured's Deductible ($)
Amount the insured paid out-of-pocket (must be returned first)
Third-Party Liability Percentage (%)
Estimated fault % attributable to the third-party tortfeasor (0–100)
Probability of Successful Recovery (%)
Likelihood of actually collecting from the third party (0–100)
Estimated Legal & Investigation Costs ($)
Attorney fees, court costs, investigation expenses
Administrative Cost Rate (%)
Internal overhead as a % of gross recovery (typically 3–10%)
### Subrogation Recovery Estimate
Total Claim Paid— Gross Recoverable Amount (× Liability %)— Expected Gross Recovery (× Success Probability)— Less: Deductible Reimbursement to Insured— Less: Legal & Investigation Costs— Less: Administrative Costs— Net Insurer Recovery— Recovery-to-Paid Ratio— Pursuit Recommendation—
function subFmt(n) { return n 100) errors.push("Liability % must be between 0 and 100."); if (isNaN(recoverChance) || recoverChance 100) errors.push("Recovery Probability must be between 0 and 100."); if (isNaN(legalCost) || legalCost 50) errors.push("Administrative Cost Rate must be between 0 and 50%."); if (!isNaN(deductible) && !isNaN(totalLoss) && deductible > totalLoss) errors.push("Deductible cannot exceed Total Claim Paid.");
if (errors.length > 0) { errEl.innerHTML = errors.join(""); errEl.style.display = "block"; return; }
// --- Core Formulas --- // 1. Gross Recoverable = Total Loss × (Liability% / 100) var grossRecoverable = totalLoss * (liabilityPct / 100);
// 2. Expected Gross Recovery = Gross Recoverable × (Recovery Probability / 100) var expectedGross = grossRecoverable * (recoverChance / 100);
// 3. Deductible owed back to insured (prorated by liability %) // Industry standard: insured's deductible is returned proportional to liability % var dedReimbursement = deductible * (liabilityPct / 100) * (recoverChance / 100);
// 4. Administrative costs = Admin% × Expected Gross Recovery var adminCost = expectedGross * (adminPct / 100);
// 5. Net Insurer Recovery = Expected Gross - Deductible Reimbursement - Legal Costs - Admin Costs var netRecovery = expectedGross - dedReimbursement - legalCost - adminCost;
// 6. Recovery-to-Paid Ratio var ratio = totalLoss > 0 ? (netRecovery / totalLoss) * 100 : 0;
// 7. Pursuit Recommendation var rec, recClass; if (netRecovery
#### Formulas Used
1. Gross Recoverable Amount
Gross Recoverable = Total Claim Paid × (Liability % ÷ 100) Reflects only the portion of the loss attributable to the third-party tortfeasor under comparative fault doctrine.
2. Expected Gross Recovery
Expected Gross Recovery = Gross Recoverable × (Recovery Probability ÷ 100) Discounts the gross amount by the realistic probability of actually collecting from the third party.
3. Deductible Reimbursement to Insured
Deductible Reimbursement = Deductible × (Liability % ÷ 100) × (Recovery Probability ÷ 100) Under most state laws and the "made whole" doctrine, the insured's deductible must be returned proportionally before the insurer retains any net recovery.
4. Administrative Costs
Admin Costs = Expected Gross Recovery × (Admin Rate % ÷ 100)
5. Net Insurer Recovery
Net Recovery = Expected Gross Recovery − Deductible Reimbursement − Legal Costs − Admin Costs
6. Recovery-to-Paid Ratio
Ratio = (Net Recovery ÷ Total Claim Paid) × 100
#### Assumptions & References
- Subrogation rights arise under common law and are codified in most states; the insurer steps into the shoes of the insured against the tortfeasor (Travelers Ins. Co. v. Lesher, 187 Cal.App.3d 169).
- The Made Whole Doctrine requires the insured to be fully compensated before the insurer recovers; deductible reimbursement is prorated by liability % and recovery probability.
- Comparative fault (pure or modified) reduces the recoverable amount proportionally per the jurisdiction's negligence rules (Restatement Third of Torts §23).
- Administrative cost rates of 3–10% are typical for insurer subrogation units (Insurance Research Council, Subrogation in Auto Insurance, 2019).
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