Fundamental Principles of Insurance

The insurance contract is governed by a set of universally accepted principles that ensure fairness, sustainability and legal enforceability. These principles originated from common law and have been codified by SEBI and IRDAI guidelines for Indian insurers.

Each principle addresses a specific aspect of the insurer‑insured relationship – from the honesty required at inception (utmost good faith) to the method of sharing losses when multiple policies cover the same risk (contribution). Mastery of these concepts enables you to analyse why a claim may be denied or why a premium is calculated a certain way.

In the NISM exam, questions often present a short scenario and ask which principle is being violated. Therefore, memorising the definition alone is insufficient; you must also understand the underlying logic and typical red‑flag indicators.

• Principles are inter‑related but distinct – confusing them leads to easy loss of marks.
• Regulatory language (e.g., “uberrima fides”) appears verbatim in many questions.

Utmost good faith obliges both parties to disclose all material facts before the contract is formed. For the proposer, this means revealing any prior claims, existing policies, or health conditions that could affect risk assessment.

For the insurer, it requires transparent communication of policy terms, exclusions, and premium calculations. Failure by either side constitutes a breach, allowing the other party to rescind the contract.

Exam relevance: NISM questions frequently present a concealed fact (e.g., undisclosed pre‑existing illness) and ask what remedy the insurer has. The correct answer is usually “contract rescission” under the principle of utmost good faith.

Insurable interest exists when the policyholder would suffer a financial loss or legal disadvantage if the insured event occurs. In India, the Insurance Act, 1938 mandates that a person can insure only his own life, property, or legal interest.

Typical examples include a homeowner insuring his house, a spouse insuring the life of the other, or a business insuring its machinery. Without insurable interest, a contract is void for being a wagering agreement.

Exam tip: Look for wording such as “financial loss” or “legal right” – these signal the presence of insurable interest. Questions may ask you to identify who can legally be the insured.

Indemnity ensures that the insured is restored to the financial position they were in before the loss, no more, no less. This principle prevents profit from a claim and underpins the calculation of claim amounts based on actual loss.

Key elements include valuation of the loss, consideration of depreciation, and exclusion of moral hazard. For example, a motor insurer will pay the market value of a damaged car, not its original purchase price.

Exam focus: Many questions test whether a claim amount exceeds the insured value, thereby violating indemnity. The correct response is to limit the payout to the insured sum.

Subrogation gives the insurer the right to step into the shoes of the insured after a claim is paid, to recover the loss from a third party responsible for the damage. This prevents the insured from receiving double recovery.

In practice, after paying a motor claim for a collision caused by another driver, the insurer may sue the at‑fault driver to recoup the payout.

Exam relevance: Scenarios often ask what action the insurer can take post‑claim. The correct answer will reference subrogation rights, not a fresh claim against the insured.

When multiple policies cover the same risk, the principle of contribution ensures that each insurer pays a proportionate share of the loss, based on the sum insured under each policy.

For example, if a property is insured for ₹1,00,00,000 with two insurers (₹60,00,000 and ₹40,00,000) and a loss of ₹50,00,000 occurs, each insurer contributes in the same ratio as their coverage.

Exam tip: Remember the formula – contribution = (Insurer’s sum insured ÷ Total sum insured) × Loss amount.

Proximate cause is the dominant cause that sets in motion the chain of events leading to loss. The insurer is liable only if the proximate cause is a covered peril under the policy.

If fire caused by an electrical short circuit leads to an explosion, the insurer must determine which cause is proximate. If fire is covered but explosion is excluded, the claim may be denied.

Exam focus: Questions present multi‑cause scenarios and ask whether the claim is payable. Identify the primary cause and match it against policy exclusions.

Risk pooling aggregates many similar exposures so that the insurer can predict losses using the law of large numbers. The larger the pool, the more accurately premiums can be set to cover expected losses and expenses.

In India, IRDAI requires insurers to maintain a minimum solvency margin, which is possible only through effective risk pooling across diverse policyholders.

Exam relevance: Understanding this principle helps answer questions on premium determination, reserve calculation, and why insurers diversify their portfolio.