1.2 Insurable Interest, Indemnity, and Insurance Principles

Insurance contracts rest on several legal principles. Mastering when each applies — and how life insurance differs from property/casualty — is heavily tested.

Insurable Interest

Insurable interest means the policyowner must stand to suffer a genuine financial or emotional loss if the insured event occurs. Without it, a policy is an illegal wagering contract.

Timing rule (critical exam point):

A wife buys life coverage on her husband; if they divorce, the policy stays valid because interest existed at issue. People always have insurable interest in their own lives. Beyond oneself, interest is presumed in close family, business partners, and creditors (limited to the debt).

The Principle of Indemnity

Indemnity restores the insured to the financial position held before the loss — no more, no less. It prevents profiting from insurance.

• Health insurance is largely a contract of indemnity (reimburses actual medical costs).
• Life insurance is valued (a "contract of value"), not indemnity: it pays a stated face amount regardless of the dollar value of a human life.

Related indemnity concepts:

Coordination of Benefits (COB) worked example

A $1,000 covered claim is filed. The primary plan pays its normal $800. The secondary plan pays only up to the unpaid balance — here, $200 — not another $800. Total paid = $1,000, never $1,600. COB enforces indemnity by preventing duplicate recovery.

Other Core Principles

• Utmost good faith — both parties rely on each other's honesty; supports representations, warranties, and concealment rules.
• Adverse selection — those most likely to have losses (poor health) are most likely to seek and keep insurance; underwriting and rating exist to combat it.
• Stop-loss / out-of-pocket maximum — caps the insured's annual cost-sharing.

Reductions before the insurer pays

In health plans, the insured typically pays in this order:

1. Deductible — fixed amount paid first each year
2. Coinsurance — a percentage split (e.g., 80/20) after the deductible
3. Out-of-pocket max — once reached, the plan pays 100%

Worked example: Plan has a $1,000 deductible, 80/20 coinsurance, $3,000 out-of-pocket max. A $6,000 bill: insured pays the first $1,000 (deductible), then 20% of the remaining $5,000 = $1,000 coinsurance. Total insured cost = $2,000, under the $3,000 cap, so the insurer pays $4,000.

Stated-Amount vs. Reimbursement Benefits

Not every health benefit is pure indemnity. Two models appear on the exam:

• Reimbursement (expense-incurred) basis — pays the insured's actual covered charges up to policy limits; this is true indemnity (most major medical).
• Valued (stated-amount) basis — pays a fixed dollar amount regardless of actual cost; used by many disability income and AD&D policies. A $4,000/month disability benefit pays $4,000 whether or not the insured's lost wages were exactly that.

Disability income carriers limit the benefit to roughly 60–70% of gross income precisely to preserve the spirit of indemnity and the insured's incentive to return to work — paying 100% would create a morale hazard.

Insurable Interest in Business and Creditor Situations

Business relationships create insurable interest the exam likes to test:

• Key person — an employer has interest in a key employee whose death would cause financial loss; the business owns the policy and is the beneficiary.
• Buy-sell agreement — co-owners insure one another so survivors can buy a deceased owner's share at a pre-agreed price.
• Creditor — a lender has insurable interest in a debtor limited to the outstanding balance of the debt, not an unlimited amount.

Worked example — needs-based human life value: A 40-year-old earns $80,000/year and plans to work 25 more years. A simple Human Life Value (HLV) estimate, ignoring discounting, is $80,000 × 25 = $2,000,000 of economic value to insure. A needs analysis instead totals specific obligations — say $300,000 mortgage + $150,000 college + $250,000 income replacement − $50,000 existing assets = $650,000 of needed coverage. HLV tends to produce a larger figure than a needs analysis because it replaces all future earnings rather than netting against resources.

When Insurable Interest Must Exist

Timing is heavily tested and differs by line. In life insurance, insurable interest must exist only at the inception of the policy — not at the time of death, which is why a divorced spouse can remain beneficiary. In property and health insurance, insurable interest must exist at the time of loss. This single distinction generates many questions.

Worked Example: Indemnity Cap

A health policy reimburses actual covered expenses up to the policy limit. If a procedure costs $8,000 and the plan's allowed amount after a $1,000 deductible and 20% coinsurance is applied, the insured cannot profit — the plan pays at most the eligible expense minus cost-sharing. Life insurance is the exception: it is a valued contract paying a stated face amount, because a human life has no objective dollar value, so strict indemnity does not apply to it.