1.2 Insurable Interest, Indemnity, and Other Insurance Principles

Insurable Interest

To collect on a property or casualty policy the insured must have an insurable interest - a genuine financial stake such that damage to the property causes the insured an economic loss. Ownership, a mortgage, a lease, or a secured loan all create insurable interest. A key timing rule separates the lines:

• Property/casualty: insurable interest must exist at the time of loss (you can insure only what you would actually lose).
• Life: insurable interest need exist only at policy inception.

Without insurable interest a policy is a wager - unenforceable and contrary to indemnity.

The Principle of Indemnity

Indemnity restores the insured to the same financial position held immediately before the loss - no better, no worse. The insured may not profit from a loss. Recovery is therefore the lesser of the actual loss or the policy limit, reduced by any deductible. Several mechanisms enforce indemnity: ACV settlement, deductibles, subrogation, contribution (other-insurance), and policy limits.

ACV vs. Replacement Cost

The most-tested valuation pair:

Worked ACV example: a 10-year-old roof costs $20,000 new and has a 25-year life. Straight-line depreciation is 10/25 = 40%, so depreciation is $8,000 and ACV = $20,000 - $8,000 = $12,000. Replacement cost coverage would pay the full $20,000 (often the ACV first, then the depreciation holdback once repairs are completed).

Subrogation

After the insurer pays a covered claim caused by a negligent third party, subrogation transfers the insured's right to recover from that party to the insurer. This prevents a double recovery (collecting from both the insurer and the at-fault party) and keeps the loss on the responsible party. The insured must not waive or impair these rights after a loss.

Other-Insurance / Contribution

When two or more policies cover the same property, the contribution (other-insurance) clause bars the insured from collecting more than the actual loss. Carriers share the loss - commonly pro rata by their share of total coverage.

Worked pro rata example: Insurer A carries $300,000 and Insurer B carries $100,000 on a building (total $400,000) that suffers a $40,000 loss. A pays 300/400 x $40,000 = $30,000; B pays 100/400 x $40,000 = $10,000. The insured collects $40,000 total - never $80,000.

The Coinsurance Clause

Property policies use coinsurance (commonly 80%, 90%, or 100%) to encourage insuring to value. If the limit carried is less than the required percentage of full replacement cost at the time of loss, the insured shares (coinsures) the partial loss.

Coinsurance formula: Payment = (Limit Carried / Limit Required) x Loss - Deductible

Worked coinsurance example: a building has a replacement cost of $500,000 with an 80% clause, so the required limit is $400,000. The owner carries only $300,000 and suffers a $100,000 partial loss with a $1,000 deductible.

• Recovery = (300,000 / 400,000) x 100,000 = 0.75 x 100,000 = $75,000
• Less the $1,000 deductible = $74,000 paid; the owner absorbs the remaining $26,000.

Trap: coinsurance applies only to partial losses; a total loss pays the policy limit (subject to any penalty rarely reaching that point). Always test the carried limit against the required limit, not against the loss.

Stated Value, Agreed Value, and Valued Policies

Not every property is settled on ACV or replacement cost. Three alternatives appear on the exam:

• Agreed value - the insurer and insured agree in advance on the property's value and waive the coinsurance clause; common on fine arts and scheduled equipment.
• Stated amount - a maximum the insurer will pay, used where exact value is hard to fix (specialized commercial autos).
• Valued policy / valued policy laws - for total losses (often by fire) on real property, many states require the insurer to pay the full face amount regardless of ACV, to discourage overinsuring.

The Principle of Reasonable Expectations and Limits

Every indemnity payment is also capped by the policy limit - the maximum the insurer will pay for a covered loss. When a loss exceeds the limit, the insured retains the excess. Sublimits further cap specific categories (for example, a $1,500 sublimit on jewelry theft inside a homeowners policy), and an insured who wants more must schedule the item or buy a higher limit. Indemnity, in short, is bounded on every side: by the actual loss, by the policy limit, by sublimits, and by the deductible.

Why Insureds Cannot Profit

The entire architecture - insurable interest at time of loss, ACV depreciation, deductibles, subrogation, contribution, coinsurance, and limits - exists to enforce a single idea: insurance restores, it does not reward. An insured who could profit from a loss would have a powerful incentive to cause one, reintroducing the moral hazard the system is built to suppress.

When an exam question describes a payout that would leave the insured better off than before the loss, that answer is almost always wrong. The lone deliberate exception is replacement cost coverage, which intentionally pays more than ACV to avoid penalizing the insured for ordinary depreciation - and even then the insured must actually repair or replace the property to collect the depreciation holdback, so no cash windfall results.