If you have found yourself confused by the recent debate around private Integrated Shield Plans (IPs), you are not alone. During my conversations with friends, relatives and even some financial advisers, it seems there is uncertainty about what has changed and what the new IP rider rules mean for policyholders and Singapore’s healthcare system.
Part of the confusion lies in how quickly the discussion has intensified, along with the technical nature of Ithe P rider and how co-payment structures work. In addition, Health Minister Ong Ye Kung has been quite vocal in expressing his concern about how the current system is no longer working as intended and that corrective intervention is required.
The Problem Story Thus Far
The starting point of the problem lies in the rising cost of healthcare in private hospitals. This is the part of Singapore’s healthcare system that the government does not directly control.
Like many businesses, most private hospitals operate on a for-profit basis. While they play a valuable role by providing choice and additional capacity for Singapore’s healthcare system, their commercial nature means that their prices are shaped primarily by market forces, and are usually higher compared to public hospitals.
Concerns about private healthcare costs are not new. Even before 2018, medical inflation in Singapore had already been climbing at an unsustainable pace. In response, the Ministry of Health published fee benchmarks in 2018 to help patients compare hospitalisation costs across both public and private hospitals. The aim was to introduce greater transparency, with the idea that if consumers have a better sense of what a “reasonable” bill might look like, doctors’ overcharging will be less likely.
Unfortunately, greater fee transparency didn’t address what I believe is the underlying issue, which is misaligned incentives. Private doctors still had room to overcharge, while patients, who are covered by private Integrated Shield Plans with riders, often paid little or nothing out of pocket. When insurance absorbs the full cost of treatment, patients have little reason to question prices set by their doctors and insurers are left to shoulder the consequences of rising charges.
This was why MOH announced changes in 2018 requiring IP riders to include a co-payment of at least 5 per cent. The logic was simple. If policyholders also bore some share of the bill, they would become more cost-conscious, and providers would possibly face greater resistance to excessive pricing.
Yet it has become increasingly clear that these measures were not enough. Despite the introduction of co-payments, premiums for Integrated Shield Plans and their riders have continued to climb, suggesting that the underlying issue remains unresolved. According to reporting by The Straits Times, six out of seven insurers raised premiums for their IPs and riders in 2025, with net claims surging by between 9 and 27 per cent in 2024.
Why Rising IP Premiums Matter Beyond Insurance
At first glance, rising IP premiums and higher private hospital bills might seem like a straightforward outcome of a free market at work. If private healthcare becomes more expensive, insurers raise premiums, and consumers can decide for themselves whether the coverage is still worth paying for.
In reality, healthcare does not operate like a normal consumer market and nor should it. Medical treatment is quite often a necessity, not a discretionary purchase. When someone suffers a serious illness or injury, care cannot (and should not) be delayed or avoided in the way people might cut back on dining out or travel when prices are high.
This is where the risk of market failure becomes clear. As private hospital bills rise, insurance claims increase, and IP premiums follow suit. Faced with higher costs, some consumers downgrade their coverage or exit private hospital plans altogether. But when these individuals eventually fall ill, they do not exit the healthcare system. Instead, they turn to public hospitals for treatment.
The spillover effect is already visible. Health Minister Ong Ye Kung has noted in Parliament that the proportion of patients treated in public hospitals rose from 85 per cent in 2010 to 88 per cent in 2020, and has since reached around 90 per cent. As private healthcare becomes less affordable, public hospitals are forced to absorb a growing share of the national caseload. If this trend continues, the strain on the public system will only intensify.
Why Rising IP Premiums Risk Destabilising the Insurance Pool
From an insurance perspective, the situation is just as troubling. As premiums rise, healthier and lower-risk individuals are more likely to drop coverage, while those who expect to claim remain insured (i.e. the adverse selection problem). This process of adverse selection weakens the risk pool, pushing premiums even higher and accelerating the cycle. Left unchecked, it risks making the Integrated Shield Plan market increasingly unsustainable.
The scale of the issue is not significant, as about seven in ten Singaporeans purchase Integrated Shield Plans from private insurers, so this means even a small percentage deciding to drop IP coverage. This is broadly positive as it allows most Singaporeans to access higher-class wards in public hospitals, such as Class A and B1, as well as treatment in private hospitals, easing pressure on heavily subsidised care.
The concern arises if even a small percentage of policyholders begin to downgrade or abandon coverage for private hospitals or unsubsidised wards. When that happens, demand shifts towards subsidised Class B2 and C wards instead. According to figures cited by the Singapore government, around 100,000 policyholders cancel or downgrade their IP rider policies each year. If this number increases, it means a higher number of people will be going to the public hospital for subsidised coverage.
What Should Be Done?
Given the current structure of Integrated Shield Plans, the best outcome is for Singaporeans to continue maintaining IP coverage so that they can access higher-class unsubsidised wards and private hospital when they are ill.
This arrangement makes particular sense for younger policyholders. Younger patients tend to face more isolated medical issues, for which private hospitals are often better suited, with shorter waiting times and more streamlined care. Older patients, by contrast, are more likely to manage multiple chronic conditions that require longer, more complex treatment, an area where public hospitals are better equipped for.
However, this only works if premiums remain sustainable. While premiums will rise over time, increases should broadly track general inflation and long-term healthcare cost trends. This contrasts with recent experience, where IP premiums have risen by an average of about 17 percent annually over the past three years, significantly higher than MediShield Life premium increases.
To address this, the government has introduced measures aimed at curbing excessive claims and improving cost discipline. These include disallowing riders from fully covering deductibles and increasing co-payment cap requirements.
Ultimately, the recent changes to Integrated Shield Plan riders are about sustainability rather than restricting access to private healthcare. The policy objective is to keep as many Singaporeans insured at higher coverage levels as possible, while ensuring premiums rise at a manageable pace over time. This requires greater cost-sharing, so patients remain mindful of healthcare costs, overall claims growth moderates, and healthier policyholders are not driven out of the system.
Read Also: 4 Things To Know About The Latest Changes To IP Riders, And How They May Affect You
Photo Credit: iStock/Miguel Vidal
