Banking and Insurance - Laws and Practice · Concept of Insurance

Principles of Insurance: Good Faith, Indemnity and More

Updated 11 October 2026 · Fact-checked

The principles of insurance are the rules that govern every insurance contract: utmost good faith, insurable interest, indemnity, subrogation, contribution, proximate cause and loss minimisation. To answer a question, name the principle, state the rule, apply it to the facts, and conclude whether the claim is payable and for how much.

Understand Principles of Insurance

Insurance is a contract in which the insurer agrees to pay for a defined loss in return for a premium. Because the insurer cannot see the risk for itself, the law sets some basic principles. They keep the contract fair and stop it from turning into a gamble or a source of profit.

Utmost good faith (uberrimae fidei) means each side must disclose all material facts honestly. A fact is material if it would affect the insurer's decision to accept the risk or fix the premium. The proposer knows the facts, so the duty falls mainly on the proposer. Non-disclosure or misstatement of a material fact lets the insurer avoid the contract.

Insurable interest means you must stand to lose financially if the insured event happens. Without it the contract is a wager. In property and general insurance, the interest must exist at the time of loss. In life insurance, it must exist when the policy is taken. You are presumed to have an interest in your own life and, broadly, in a spouse's life. Note that the Insurance Act, 1938 text supplied to you shows section 68 on insurable interest as omitted, so do not cite it as a live provision.

Indemnity means the insured is put back in the position held before the loss, no better and no worse. It applies to property, fire, marine and motor policies. It does not apply to life and personal accident cover, where the sum assured is fixed in advance. Two principles protect indemnity. Subrogation lets the insurer, after paying, step into your shoes and recover from a wrongdoer. Contribution lets an insurer who paid a loss covered by several policies recover a rateable share from the other insurers.

Proximate cause is the dominant, effective cause of the loss, not merely the nearest in time. The insurer pays if the proximate cause is an insured peril. It does not pay if the proximate cause is excluded. Loss minimisation requires you to act as a prudent uninsured person would to reduce the loss once an insured event occurs. Reasonable costs of doing so are generally recoverable under the policy terms.

Key rules to remember

Indemnity limit: Claim payable ≤ lowest of (actual loss, sum insured); Subject to policy terms. The insured cannot gain from the loss.
Contribution between insurers: Insurer's share = (Its sum insured ÷ Total sum insured of all policies) × Loss; Used when the same risk is covered by more than one policy. Each share is limited by that insurer's own sum insured. This is the usual independent-liability method.
Average (underinsurance): Claim = (Sum insured ÷ Value at risk) × Loss; Applies only if the policy has an average clause. Claim cannot exceed the sum insured.
Insurable interest timing: Life: at inception. Property and general: at time of loss.; Check the type of policy before applying the rule.
Which principles apply: Indemnity, subrogation, contribution: not applicable to life insurance; Utmost good faith and insurable interest apply to all contracts.

How to solve Principles of Insurance questions

Use this order for any case-based or theory question on the principles of insurance.

1Identify the type of policy: life, fire, marine, motor or other general cover.
2List the facts and spot which principle each fact tests.
3State the rule of the principle in plain words, with its condition.
4Apply it to the facts. For disclosure, ask if the fact was material and known to the proposer.
5For money questions, find the actual loss, the sum insured and any average or contribution effect, and calculate.
6Check whether the indemnity principle applies, since life policies are excluded.
7Write a clear conclusion: claim payable in full, in part, or repudiated, and what rights the insurer gains.
8Add a compliance or drafting point, such as a proposal form declaration or notice of loss.

Quickest way: Principle-spotting checklist

When to use it: Use when you have limited time and a short fact-based question.

Concealment or false statement points to utmost good faith.
No financial stake points to insurable interest.
Claim bigger than the loss points to indemnity.
Insurer recovers from a third party points to subrogation.
Two or more policies on one risk points to contribution.
Several events in a chain points to proximate cause.
Insured did nothing to limit the loss points to loss minimisation.
Write rule, application and conclusion in three short parts.

Common mistakes in Principles of Insurance

Applying indemnity to life insurance.
Students treat all insurance alike.
Fix: State that life insurance pays a fixed sum assured, so indemnity, subrogation and contribution do not apply.
Mixing up subrogation and contribution.
Both follow payment of a claim and look like recovery.
Fix: Subrogation is recovery from a third-party wrongdoer. Contribution is sharing among insurers covering the same risk.
Saying insurable interest is needed at inception for every policy.
The life insurance rule is over-generalised.
Fix: Life: at inception. Property and general: at time of loss.
Treating proximate cause as the last event in time.
The word proximate sounds like nearest.
Fix: Say it is the dominant, effective cause, then test whether it is insured or excluded.
Citing section 68 of the Insurance Act, 1938 as the insurable interest rule.
Older notes still refer to it.
Fix: The supplied official text shows section 68 as omitted. Explain insurable interest as a general principle without citing it.
Paying full claim despite underinsurance when an average clause exists.
Students forget to check the policy terms.
Fix: Compare the sum insured with the value at risk and apply the average formula.

Worked examples

Example 1

Meera's shop stock worth ₹10,00,000 is insured with Insurer A for ₹6,00,000 and Insurer B for ₹4,00,000 against fire. A fire causes a loss of ₹5,00,000. How much does each insurer pay, and which principle applies?

Show the solution

Both policies cover the same stock and risk, so contribution applies.
Indemnity limits her recovery to the actual loss of ₹5,00,000, not the total sums insured.
Total sum insured = ₹6,00,000 + ₹4,00,000 = ₹10,00,000.
Insurer A's share = 6,00,000 ÷ 10,00,000 × 5,00,000 = ₹3,00,000.
Insurer B's share = 4,00,000 ÷ 10,00,000 × 5,00,000 = ₹2,00,000.
Total = ₹5,00,000, which equals the loss, so Meera gains nothing extra.

Answer: Insurer A pays ₹3,00,000 and Insurer B pays ₹2,00,000. The principles of indemnity and contribution apply. If one insurer pays all, it can recover the rateable share from the other.

Example 2

Rohit insures his car. A negligent truck driver damages it, and the insurer pays Rohit ₹80,000 for the repair. Rohit then sues the driver and recovers ₹80,000 as damages. Can he keep both amounts?

Show the solution

Motor own-damage cover is a contract of indemnity.
Rohit's actual loss was ₹80,000, and he has been paid ₹80,000 by the insurer.
The driver's liability is a right against a third party. On payment, the insurer is subrogated to that right.
If Rohit keeps the damages as well, he would receive ₹1,60,000 for an ₹80,000 loss, which breaches indemnity.
He therefore holds the recovered sum for the insurer, up to the amount the insurer paid.

Answer: Rohit cannot keep both. The insurer is entitled by subrogation to the ₹80,000 recovered from the driver, because the insured cannot profit from the loss.

Exam tips

Define each principle in one sentence, then give a short example. Examiners reward the application to the facts.
Always state which principles do not apply to life insurance.
In calculation questions, show the formula and each step so marks are earned even if arithmetic slips.
In proximate cause questions, name the insured peril and the excluded peril, then decide which one dominated.
Keep an answer structure ready: rule, facts, conclusion, then a practical point such as full disclosure in the proposal form.

Practice questions from Concept of Insurance

Principles of Insurance: frequently asked questions

What is the principle of utmost good faith in insurance?

It requires both parties to disclose all material facts honestly before the contract is made. A material fact is one that influences the insurer's decision on acceptance or premium. If the proposer hides or misstates such a fact, the insurer can avoid the contract.

What is the difference between subrogation and contribution?

Subrogation lets an insurer, after paying a claim, recover from a third party who caused the loss. Contribution lets an insurer who paid recover a rateable share from other insurers covering the same risk. Both support indemnity, but they work against different parties.

When must insurable interest exist?

In life insurance it must exist when the policy is taken. In property and general insurance it must exist at the time of loss. Without it the contract is a wager and is not enforceable.

What is the doctrine of proximate cause?

It says the insurer looks at the dominant, effective cause of the loss, not simply the last event. If that cause is an insured peril, the claim is payable. If it is excluded, the claim fails.