Voluntary hospitalization insurance, known in Switzerland as VHI, sits on top of the country’s mandatory health insurance scheme and is governed by private contract law rather than the strict rules that shape basic coverage. It typically buys policyholders a free choice of treating doctor during a hospital stay, a private or semi-private room, and a wider selection of hospitals. Some products go further, covering innovative treatments, care abroad, home nursing, childcare during hospitalization, or even search and rescue services. Crucially, Swiss law forbids VHI from substituting for mandatory insurance or covering its copayments, keeping it firmly in the realm of comfort and choice rather than essential protection.

The numbers tell a story of structural decline. When mandatory health insurance was introduced in 1996, the publicly regulated benefit package grew and supplementary coverage lost relative importance. The decisive blow came with the 2012 hospital financing reform, which required cantons to cover 55 percent of inpatient costs for hospitals on their lists, effectively replacing financing that insurers and policyholders had previously carried. The researchers’ data show the most pronounced drop in VHI’s contribution to hospital financing occurred immediately after that reform, with the decline continuing at a slower but steady pace across most hospital categories, even as psychiatric hospitals and rehabilitation clinics saw modest increases.

Yet the sector is far from marginal. With Swiss hospitals under chronic financial pressure, the hospital association H+ warned in 2023 that financing through mandatory insurance was insufficient, and supplementary insurance remains a strategically important revenue stream that diversifies financial flows and eases pressure on institutions. The stakes are highest for insurers, for whom VHI is one of the few domains where profit generation is permitted, and for hospital head physicians, whose earnings are closely tied to higher tariffs and supplementary fees linked to privately insured patients. Those arrangements, the brief notes, may create incentives to prioritize VHI patients and can influence clinical decision-making and the internal organization of care.

Transparency concerns have now reached the top of the regulatory agenda. In December 2020, the Swiss Financial Market Supervisory Authority FINMA published findings that some medical bills from doctors and hospitals were unreasonably high or insufficiently justified, and that in many cases it was unclear what additional services were actually being charged beyond what mandatory insurance already covered. The federal price watchdog went further, calculating that additional services for privately insured patients generated average extra costs of CHF 6,745 per case in semi-private wards and CHF 8,960 in private wards, with the most expensive hospitals charging up to nine times more than the least expensive. Some pricing agreements, the watchdog found, automatically generated higher remuneration for VHI patients even when no clinically differentiated services were provided.

Drawing on a structured review of academic and grey literature, regulatory documents from 2009 to 2024, market information on insurance products, and ten semi-structured stakeholder interviews, the brief identifies four forces shaping the sector’s future. First, the expanding scope of mandatory insurance has left less room for supplementary products, while rising premiums have squeezed household budgets and reduced willingness to buy extra coverage. Second, healthcare delivery itself is changing: inpatient care is increasingly replaced by outpatient treatment, hospital stays are shorter, and technological and demographic shifts are transforming how hospitals are used, leaving objectively fewer opportunities to use conventional hospitalization products.

The third and fourth challenges concern the market’s internal complexity. Insurers enjoy considerable freedom in designing supplementary products, including what is covered, how much is reimbursed, and what is excluded, producing individualized contracts that are notoriously difficult to compare. Hospitals, meanwhile, define their own catalogues of services for semi-private and private patients, with no official standard specifying what those categories should include, so identical products can deliver different benefits depending on the insurer and hospital involved. Although the industry introduced general principles in 2021 to clarify the concept of additional benefits in response to FINMA’s concerns, the authors find these principles remain too broad to establish a uniform standard. Fragmented tariff arrangements compound the problem, as insurers negotiate separate pricing agreements with individual hospitals, hospital groups, and physicians using different billing methods.

The policy options that emerge from the analysis, refined through a multi-stakeholder dialogue at the University of Lucerne in October 2024, fall into three directions. Modernization through innovation is the first: the brief suggests exploring a savings component within VHI premiums, drawing on life insurance principles and on Singapore’s Medisave model, so that part of the premium could accumulate and later offset premium increases in older age or facilitate switching between insurers. Product innovation could move beyond room categories toward post-hospitalization support, preventive services, and modular designs modeled on the Dutch supplementary market. Stronger insurer-provider collaboration, on the model of integrated systems like Kaiser Permanente in the United States, could support preferred provider arrangements and value-based payment, though the authors caution that reform must preserve room for cooperation in a system currently marked by limited trust.

The second and third recommendations target the sector’s credibility. Better communication should span the entire insurance pathway, from clear and comparable information at enrollment, through transparent details during hospital planning about what is covered by which scheme, to itemized invoices after discharge that policyholders can actually understand. Public reporting would go further, with an official statistical framework tracking how many people hold hospitalization insurance, broken down by age, gender, and canton, alongside data on coverage type, price, and use of benefits, with responsibility potentially resting with the Federal Office of Public Health, FINMA, or the Swiss Health Observatory. In a second phase, reporting could extend to reimbursement patterns, billing practices, and provider-level variation.

The authors are careful to note limitations, including reliance on secondary sources, a limited number of interviewees, and the fact that the recommendations were synthesized by the researchers rather than formally endorsed by all stakeholders. But their central conclusion is unambiguous: voluntary hospitalization insurance in Switzerland stands at a critical juncture, and its survival as a credible and sustainable component of the health system depends on pairing transparency reform with genuine innovation, so that a product built for the hospital ward of the past can find a purpose in the healthcare system of the future.

Subject of Research: The future of voluntary supplementary hospitalization insurance in Switzerland

Article Title: Future of supplementary private hospitalization insurance in Switzerland: a policy brief

Article References: Riabchenko, K., & De Pietro, C. (2026). Future of supplementary private hospitalization insurance in Switzerland: a policy brief. Public Health Reviews, 47, Article 1609046. https://doi.org/10.3389/phrs.2026.1609046

Image Credits: AI Generated

DOI: 10.3389/phrs.2026.1609046

Keywords: Switzerland, voluntary hospitalization insurance, supplementary health insurance, hospital financing, FINMA, health policy, transparency, mandatory health insurance, tariffs, health system reform, policy brief, public health