A Closer Look at Critical Illness: The Coverage Gap, the Court Cases, & Why One Policy is Never Enough

Critical illness plans are a foundation for building anybody’s portfolio of insurance policies.  In Singapore, it is almost guaranteed that the average person will live long enough to eventually get a critical illness, most likely some form of cancer.  Death is a one-time cost.  Critical illnesses are more insidious and may cost a family two sources of income: the one who is sick, and the one who has to look after him.

The Underinsurance, Measured Properly

The Life Insurance Association of Singapore’s 2022 Protection Gap Study found the average working adult carries a critical illness protection gap of 74%, amounting to S$579 billion in unfunded need nationally.  A more granular figure from the same body puts the average coverage needed for an economically productive adult at S$316,603, against average existing coverage of just S$59,776, a shortfall of S$264,586 per person.  A separate 2023 study found over 68% of Gen Z respondents held no critical illness coverage at all.  Platform workers, private-hire drivers and delivery riders carry a 91% gap against the national average, the demographic least equipped to absorb a lost income shock in the first place.

The Cost of a Critical Illness

Late-stage cancer treatment alone runs S$100,000 to S$200,000 annually in Singapore.  Cancer accounts for 26.2% of all deaths nationally and 73.17% of all critical illness claims.  Chemotherapy alone can run from roughly S$1,500 per cycle, with a full treatment course extending across many cycles over months.  Against that, the average actual critical illness claim payout in Singapore sits at just S$52,343.  The Life Insurance Association recommends coverage equal to 3.9 times annual income, calculated to sustain a typical five-year recovery period, which LIA’s own research confirms is roughly how long it takes a household to recover financially from a critical illness event without adequate insurance backing it.

A single-pay critical illness policy pays out once and terminates.  Cancer, the illness driving nearly three-quarters of all claims, does not respect that structure.  Recurrence, a second unrelated cancer diagnosis years later, or progression from early to intermediate to late stage are all clinically distinct events a single-payout policy was never built to handle.  Manulife’s Critical Illness Income Protection plan offers total cancer-related payouts of up to 900% of the sum insured.  AIA’s comparable multi-stage product reaches 600%, while its newer AIA Absolute Critical Cover allows claims up to 500% of the coverage amount with a full restoration of coverage 12 months after the last claim, plus double payout if the identical illness recurs.  Prudential’s comparable structure tops out at 300%.  Every one of these products imposes a waiting period between claims, commonly 12 months for a different condition and 24 months for relapse of the same condition.

The Recent Prudential Case, and Why the Denial is Controversial

A 45-year-old stroke survivor is currently suing Prudential Assurance Company Singapore in the State Courts, seeking S$108,500 in critical illness payouts after undergoing emergency brain aneurysm surgery in 2023.  The controversy sits in the surgical method, not the diagnosis.  Prudential’s policy defines claimable brain aneurysm surgery narrowly as a surgical craniotomy, an open-skull procedure, and excludes endovascular repair, the minimally invasive alternative her treating doctors performed.  The claimant states she was never offered craniotomy as an alternative.  Her treating team made the surgical decision based on clinical judgement, presumably because endovascular repair carried a better risk profile for her specific presentation, and that clinical decision then became the reason her claim failed.  Prudential rejected the argument that this made it a market outlier, stating other Singapore insurers structure their coverage the same way, a defence that is legally sound but does nothing to address the underlying unfairness: a policy exclusion triggered by a doctor’s treatment choice, made without the patient’s knowledge that the choice carried a financial consequence, is a definition trap dressed up as a coverage boundary.  A related case makes the insurer-specific nature of this trap starkly visible.  A 43-year-old woman who suffered five brain aneurysms had her claim rejected by Prudential on the identical craniotomy-versus-endovascular distinction, while AIA approved a comparable claim under a separate policy she held.  Two insurers, two outcomes, one identical medical event, decided entirely by which company’s contract happened to be in force.

AIA Singapore has disclosed paying out more than S$40 billion in death, critical illness, accident, hospitalisation, and maturity proceeds over the past decade, and its current flagship products carry wide coverage: AIA Absolute Critical Cover spans 187 medical conditions including 150 multi-stage critical illnesses, and AIA Ultimate Critical Cover offers the market’s first unlimited reset benefit.  The Prudential-versus-AIA brain aneurysm case above shows why that gap matters: two insurers reached opposite conclusions on comparable claims.

In another case, Singapore’s High Court, in a ruling by Senior Judge Tan Siong Thye, held that a critical illness payout exceeding S$450,000, received by a woman who suffered two strokes in 2017 and 2020, was not a divisible matrimonial asset in her subsequent divorce.  Her husband argued the payout should be shared since he was the family’s primary income earner and had indirectly funded the premiums.  The court rejected this, finding no evidence he had contributed to the premiums, and ruling the funds were intended for her recovery and long-term care rather than as an investment gain.  A well-structured critical illness policy, in this instance, did the job it was purchased to do.

The Verdict

Every dispute in this piece turns on the same variable: the exact wording of a policy definition, read and understood before the claim event, not after it, combined with an industry structure that gives Singapore consumers no independently verifiable way to compare insurers on actual claims outcomes.  A protection gap of S$264,586 per adult, an average payout barely a tenth of what a single year of late-stage treatment can cost, and a market with no published settlement ratio to guide the choice between insurers, together make a compelling case for holding more than one policy.

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Terence Nunis | Executive Chairman, Equinox Zenith | Author, The 1% Playbook: The Billionaire Cheat Code