Utmost Good Faith — What It Is, and Where the Duty of Disclosure Ends

Last updated 2026-08-10

Ordinary commercial contracts run on caveat emptor — let the buyer beware. You inspect the goods yourself; if you miss something, that is your problem.

An insurance contract cannot work that way, because the insurer never sees the goods.

It cannot see the old wiring in your house, your state of health, or your driving habits. It can put a price on the risk only because you told it these things.

That is why the law demands a higher standard of good faith from both parties to an insurance contract than it does under an ordinary contract — the principle of utmost good faith.

The core duty: disclosing material facts

The applicant's duty is not merely "don't lie" — it is to volunteer material facts. Those are two different things:

• Not lying = a negative duty: answer what is asked, and answer it truthfully
• Volunteering = a positive duty: what is material must be disclosed even when nobody asked

What counts as a material fact

The prevailing test: any fact that would influence a prudent insurer in deciding whether to accept the risk, or on what terms and at what premium.

Two points in that test matter:

1. The reference point is the prudent insurer, not the applicant's own sense of what matters.

That hospital stay three years ago may feel irrelevant to you; that does not stop it being a material fact

1. The threshold is "would influence the decision", not "would certainly lead to refusal".

If it could change the premium or the terms, it is material

Typical material facts include: the nature and condition of the subject matter itself, past losses and claims, previous refusals of cover or premium loadings, and any special circumstances that increase the risk.

What normally need not be volunteered

A few categories generally fall outside the duty of active disclosure:

• Facts the insurer already knows or ought to know (matters of common knowledge within its own field, for instance)
• Facts that reduce the risk (an alarm system, say)
• Facts the insurer has expressly waived asking about
• Facts the law provides need not be disclosed

The distinction people mix up most: representation vs warranty

A warranty is far stricter than a representation. A statement on the proposal form such as "I warrant that no flammable goods are kept on the premises" carries far heavier consequences, once untrue, than an ordinary inaccurate representation.

The two forms of breach, and their consequences

• Concealment: failing to disclose a material fact
• Misrepresentation: disclosing it, but inaccurately

Either can be innocent (carelessness, a faulty memory) or fraudulent (deliberate). The state of mind matters: the legal consequences of fraud are generally harsher.

One point that is often missed: the duty of good faith in an insurance contract normally attaches at the time the contract is made — which is why so many disputes trace back to the moment the proposal form was filled in.

When silence becomes a breach

The general rule: staying silent on a question that was asked, or answering something else, is a breach; and for material facts nobody asked about, the applicant still carries the positive duty to disclose.

This is where the most common disputes in practice arise — "they never asked me" is not a safe defence.

For the examination

• This belongs to Paper I, Chapter 3, "Principles of Insurance" — a chapter carrying 30% of the

paper's weighting and 33.1% of expected lost marks (chapter data)

• It sits alongside insurable interest among the six principles of insurance, which together form a single logical chain
• Common question patterns are distinctions: representation vs warranty, innocent vs fraudulent, and what counts as a material fact

⚠️ The accuracy figure quoted on this page is a practice accuracy rate, not a pass rate — the two are not convertible. The sample is 9 candidates and 7,914 answers in total (4,057 on Paper I), and it remains small.

Sources and currency

The conceptual account on this page is based on the generally accepted principles of insurance and of insurance contract law under common-law systems, and is organised and written by Mange in its own words. It is not a citation of Hong Kong legislation, and it does not constitute legal advice. Actual rights and obligations are governed by the applicable law and the policy terms. The examination syllabus is defined by the official bodies — the syllabus and study notes for each paper are available free of charge from the PEAK website and the Insurance Authority website (Handbook clauses 2.1.4 and 14.1). Chapter weightings are taken from the publicly available syllabus and study-note contents; answer statistics as at 2026-08-09.

Mange does not own, and does not claim to own, copyright in any official examination material; the content on this page is written by Mange. Nothing on this page is a promise about any examination outcome, and nothing on it constitutes legal advice.