1.2 Insurable Interest, Indemnity, and Other Insurance Principles
Key Takeaways
- Insurable interest must exist at the time of loss for property/casualty (at application for life); without it the contract is void.
- The principle of indemnity restores the insured to pre-loss financial condition — no profit — enforced by subrogation, salvage, other-insurance, and deductibles.
- ACV = Replacement Cost − Depreciation; replacement cost and valued/agreed-value policies are exceptions that can pay more than strict indemnity.
- Pro rata contribution splits a shared loss by each policy's proportion of total limits.
- Subrogation lets the insurer recover from the at-fault third party so the insured is not paid twice.
Insurable Interest
Insurable interest means the insured would suffer a genuine financial loss if the covered property were damaged or the covered person were injured. Without it, a contract is a wager and is void.
The timing rule is heavily tested and differs by line:
- Property & casualty: insurable interest must exist at the time of loss (you need not have owned the property when the policy began, but you must have an interest when it burns).
- Life insurance: insurable interest must exist at the time of application (not at death).
Sources of insurable interest in P&C include ownership, secured creditor interest (a mortgagee), and legal liability for property in your care.
Principle of Indemnity
The principle of indemnity is the most important property concept on the exam: the insured should be restored to the same financial condition that existed before the loss — no better, no worse. You cannot profit from insurance.
Indemnity caps recovery at the actual amount of the loss (subject to policy limits and valuation). Several policy provisions enforce indemnity:
| Provision | Purpose |
|---|---|
| Other Insurance / pro rata | Prevents collecting full amount from multiple policies |
| Subrogation | Insurer recovers from the at-fault party so insured isn't paid twice |
| Salvage | Insurer takes damaged property after paying, preventing a gain |
| Deductible | Insured retains part of loss; discourages over-recovery |
Exceptions to Strict Indemnity
Two valuation methods can pay more than strict indemnity and are common test items:
- Replacement cost (RC): pays to repair/replace with new property of like kind and quality, no deduction for depreciation — subject to meeting any coinsurance/insurance-to-value requirement and actually repairing.
- Valued policy / agreed value: pays a stated amount agreed in advance (used for fine art, antiques, and under state valued policy laws for total fire losses to real property).
Contrast with actual cash value (ACV) = Replacement Cost − Depreciation. ACV is the strict-indemnity measure.
Worked ACV Example
A roof costs $20,000 to replace today. It has a 20-year life and is 8 years old.
- Depreciation = (8 ÷ 20) × $20,000 = 40% × $20,000 = $8,000
- ACV = $20,000 − $8,000 = $12,000
Under an ACV policy the insured collects $12,000 (less deductible). Under a replacement-cost policy the insured may recover the full $20,000 once the roof is actually replaced — the depreciation "holdback" is released after repair. Expect a question asking the difference between RC and ACV recovery: here it is $8,000.
A building has a replacement cost of $300,000. It is depreciated by 25%. A covered fire causes a $100,000 loss. Under an ACV policy with a $1,000 deductible, the insured collects approximately:
Subrogation, Contribution, and Utmost Good Faith
Subrogation is the insurer's right, after paying a claim, to step into the insured's shoes and recover from the responsible third party. The insured cannot waive subrogation after a loss or impair the insurer's recovery, and may not collect twice. If the insured does recover from the at-fault party, those funds are turned over to the insurer up to the amount already paid.
Contribution (the other-insurance principle) requires multiple insurers covering the same loss to share it — typically pro rata by policy limits. If two policies each have $100,000 limits on a $60,000 loss, each pays $30,000. This prevents the insured from collecting the full loss from each policy and profiting.
Utmost good faith (uberrimae fidei): both parties rely on each other's honesty. This principle underlies the doctrines of representations, concealment, and warranties tested in 1.3. Because the insurer cannot inspect every risk in detail, it depends on the applicant's truthful disclosure — and the insured depends on the insurer's promise to pay in good faith, the breach of which is bad faith and can expose the insurer to extra-contractual damages.
Stated Amount, Functional Replacement, and Pair-or-Set
A few other valuation and loss-settlement concepts round out the principles tested:
| Concept | What it does |
|---|---|
| Stated amount | A maximum the insurer will pay, used for hard-to-value property; pays the lesser of stated amount or ACV |
| Functional replacement | Replaces with a functionally equivalent but less costly item (common for older buildings) |
| Market value | What property would sell for — includes land, so it differs from replacement cost |
| Pair-or-set clause | Limits recovery on a damaged item from a set to the loss in value, not the whole set |
Trap: market value is not the same as replacement cost. A house may have a $250,000 market value but a $300,000 replacement cost because market value includes the land, which does not burn.
Insurable Interest in Property vs. Life
Insurable interest means the insured would suffer a genuine financial loss if the covered event occurred — it prevents insurance from becoming a wager. In property and casualty, the insurable interest must exist at the time of loss (you can insure a building you may sell; coverage turns on ownership/financial stake when the loss happens).
Sources of insurable interest in property include ownership, a secured creditor's (mortgagee's) interest, a bailee's responsibility for others' goods, and contractual or leasehold interests. Worked example: a bank holding a mortgage has an insurable interest up to the loan balance and is protected by the mortgage clause; the homeowner has an interest in the full value. Both can be insured on the same property without it being a wager.
The Principle of Indemnity and Its Limiting Doctrines
The principle of indemnity restores the insured to the same financial position held before the loss — no better, no worse. Several doctrines enforce it:
| Doctrine | Effect |
|---|---|
| Subrogation | After paying, the insurer steps into the insured's rights to recover from the at-fault party, preventing double recovery |
| Other-insurance / contribution | When two policies cover the same loss, they share proportionally so the insured does not collect twice |
| Actual cash value | Caps payment at replacement cost minus depreciation |
Exceptions that exceed strict indemnity include valued policies (agreed amount, common in fine arts and some state valued-policy laws for total fire loss) and replacement cost coverage (pays without depreciation). Trap: life insurance is not a contract of indemnity — it is a valued contract paying a stated face amount.
Two policies cover the same warehouse on a pro rata other-insurance basis: Policy A carries a $400,000 limit and Policy B a $100,000 limit. A covered loss of $50,000 occurs. How much does Policy A pay?