9.2 Subrogation, Primary/Excess & Pro Rata Other Insurance
Key Takeaways
- Subrogation transfers recovery rights to the paying insurer only to the extent of payment and applicable rights.
- The insured must preserve evidence and avoid prejudicing subrogation, subject to policy and law.
- Primary insurance responds first; excess insurance attaches after the required underlying layer.
- Pro rata clauses share a covered loss using the method stated in the policies, often by limits.
Coordinating Recovery Among Policies and Responsible Parties
A covered loss can involve two insurers and a negligent third party. Indemnity permits full covered recovery, not multiple profit.
Subrogation
Subrogation places an insurer that paid a loss in the insured’s position to pursue a responsible third party. It serves two purposes: the wrongdoer ultimately bears the loss, and the insurer recovers its payment.
The insurer cannot obtain greater rights than the insured possessed. Defenses that apply against the insured can apply against the insurer. Recovery is limited by payment and costs, with allocation of deductibles and uninsured loss governed by policy and law.
Example
A contractor negligently starts a fire causing $200,000 of covered damage. The property insurer pays $175,000 after deductible and limitations. It may pursue the contractor for its payment. The insured may retain a claim for the deductible or uninsured portion, and priorities must be coordinated.
The insured must not destroy evidence or release the contractor in a way that prejudices the insurer’s right. Waiver of subrogation can be permitted when agreed before loss, especially in construction and lease contracts, but the policy must allow it.
Other insurance
An other-insurance clause coordinates policies covering the same interest, property, cause, and loss. Policies may be:
- primary, paying before another layer;
- excess, paying after specified primary insurance is exhausted;
- pro rata, sharing with other applicable insurance;
- subject to escape or contribution wording whose enforceability requires legal analysis.
Do not call two policies “other insurance” merely because both relate to the event. A building policy and a contractor’s liability policy insure different interests and can relate through subrogation rather than contribution.
Pro rata by limits
Assume two policies cover the same $120,000 loss on the same property and both share by limits. Policy A has $300,000 and Policy B has $100,000.
- Total applicable limits: $400,000.
- A’s share: $300,000 ÷ $400,000 = 75 percent, or $90,000.
- B’s share: $100,000 ÷ $400,000 = 25 percent, or $30,000.
Deductibles and exact clauses can change the result. Some forms share in equal shares rather than limits.
Primary and excess
An excess policy ordinarily attaches only after underlying insurance reaches the exhaustion point required by the excess form. If the insured settles underlying coverage below limits, the excess policy’s exhaustion wording determines whether the insured can fill the gap. An umbrella can sometimes drop down for a covered claim not insured below, but a self-insured retention may apply.
Mortgagee and loss-payee coordination
A mortgagee listed on the same property policy is not “another insurer.” It is another insured interest and potential payee. Likewise, a public adjuster named on a check does not acquire ownership of policy proceeds; Texas law requires the insured as payee and prohibits the public adjuster from signing the insured’s endorsement.
Public-adjuster checklist
- Identify every policy and coverage period.
- Confirm the same property, interest, peril, and loss.
- Quote each other-insurance clause.
- Calculate limits and deductibles separately.
- preserve responsible-party evidence and contracts.
- disclose payments and avoid duplicate claim amounts.
Scenario
A tenant’s equipment is covered under its own inland marine policy and as property of others under the landlord’s policy. A sprinkler contractor may be liable for negligent installation. Determine whether both first-party policies cover the same interest and how their clauses coordinate. After payment, one or both insurers may pursue the contractor. The existence of liability does not require the insured to wait if its own covered policy is payable.
Exam distinctions
Subrogation is recovery from a responsible party after payment. Contribution/pro rata is allocation among insurers covering the same loss. Excess describes vertical priority. Keep these axes separate.
Allocate recovery without creating double payment
Subrogation allows an insurer that paid a covered loss to pursue a responsible third party to the extent of its rights. Preserve defective products, contracts, photographs, expert findings, and notice to potential defendants before repair destroys evidence. The insured should not sign a release that prejudices subrogation without understanding the consequence. A waiver of subrogation may be authorized in advance by contract or endorsement, but it is not assumed.
Other-insurance clauses coordinate policies covering the same interest, property, risk, and loss. Primary insurance responds first; excess insurance responds after the underlying layer, subject to its terms. Pro rata clauses may allocate by policy limits or another stated method. Escape or excess wording can conflict, requiring policy and legal analysis rather than simple arithmetic.
If Policy A has a $300,000 limit and Policy B has $100,000 on the same basis, a $120,000 pro rata loss allocates 75%, or $90,000, to A and 25%, or $30,000, to B before other applicable terms. That ratio is based on limits, not premiums. Confirm deductibles and collectibility, and never submit inconsistent full-loss demands without disclosing overlapping coverage.
What right does subrogation give a property insurer after paying a covered loss?
Policy A has a $300,000 limit and Policy B a $100,000 limit. If both share by limits, what percentage is A’s share?