Property Insurance Basics: Practice Questions & Explanations

Indemnity is a foundational principle of property and casualty insurance: the insured should be restored to their financial condition immediately before the loss, but not profit from the loss. The principle prevents moral hazard (incentive to cause or exaggerate losses for gain). Several mechanisms enforce indemnity: actual cash value (replacement cost minus depreciation) reflects what the property was actually worth before the loss; deductibles ensure the insured bears some loss; co-insurance penalties discourage under-insuring; salvage and subrogation rights recover from third parties responsible for losses. Replacement cost coverage modifies pure indemnity by paying to replace with new property (rather than depreciated value), but still requires actual repair or replacement and is subject to policy limits.

Insurable interest in property insurance is a financial stake in the property — ownership, lease interest, security interest (like a mortgage), or other legitimate claim that creates risk of loss. Unlike life insurance (where insurable interest is required only at the time of application), property insurance requires insurable interest at the time of the loss. The principle prevents purchasing insurance on someone else's property without a legitimate stake. Multiple parties can have insurable interests in the same property simultaneously: the homeowner, the mortgage lender, a tenant, a contractor working on the property. Each may carry insurance protecting their specific interest. Insurance pays only for the extent of the insured's actual loss, regardless of how much insurance was carried.

In property insurance, insurable interest means the policyholder must have a genuine financial stake in the insured property — they would suffer a financial loss if it were damaged or destroyed. Unlike life insurance (where insurable interest is needed at policy inception), in property insurance the insurable interest must exist at the time of the loss, because that is when indemnification is measured. Examples of insurable interest include ownership, a mortgage lender's interest, or a tenant's interest in improvements. This requirement prevents wagering on property one has no stake in. Understanding when insurable interest must exist (at the time of loss for property) is commonly tested.