Every autumn, many people receive their new insurance premium and ask themselves the same question: why do insurance premiums in Switzerland change if the cover provided by compulsory basic insurance remains the same? The answer lies neither in your medical history nor in an arbitrary decision. The premium reflects projected healthcare costs, cantonal regulations, regional groupings and the financial situation of each insurer.

Understanding these factors enables you to make an informed comparison. It’s not just about finding the lowest price, but about recognising which parts of the cost may vary, which options suit your healthcare needs, and when it’s worth reviewing your policy.

Basic cover is the same, but premiums are not

Compulsory basic insurance covers a range of benefits defined by law. A necessary consultation, hospital treatment in the general ward of your canton of residence, or medicines included on the official list are governed by the same rules, regardless of which insurer you choose.

What varies is the monthly premium. Each insurer calculates the premiums required to cover the expected costs of its policyholders in a specific area. These rates must be approved by the relevant federal authority before they come into force. Therefore, a higher premium does not automatically mean better basic cover. Nor does a lower premium imply that a compulsory benefit is missing.

A useful comparison is based on a simple idea: the same statutory benefits, but different prices and access models. This is where a clear visualisation of verified data is more valuable than a promotional ranking.

Why do insurance premiums in Switzerland change every year?

Premiums are reviewed annually because the funding of basic insurance is based on the projected costs for the following year. Insurers cannot set a single rate for the whole country, nor can they ignore regional differences in expenditure.

Projected healthcare costs

Hospital admissions, doctor’s appointments, medicines, therapies, long-term care and advances in treatment all influence healthcare expenditure. If an increase in usage or costs is expected in a region, premiums may rise to cover this.

This is not an exact month-on-month correlation. Insurers work with forecasts. A period with more treatments, changes in medicine prices or a greater need for care can affect the estimate for the following year. Adjustments may also be made when previous forecasts did not materialise as expected.

The canton and the premium region

Living in Zurich, Bern, Aargau, Solothurn or Lucerne can mean different cost structures. Even within the same canton, there may be several premium regions. The density of healthcare providers, hospital utilisation, local prices and the organisation of healthcare help to explain these differences.

For this reason, moving house can affect your premium even if you stay with the same insurer, the same policy type and the same excess. This is not a mistake on the part of the insurer: your place of residence determines the applicable tariff region. It is advisable to update your address as soon as possible and review the new quote for your place of residence.

The insurer and its policyholder portfolio

Two insurers may offer the same basic cover in the same region yet charge different premiums. Each has its own portfolio of policyholders, cost experience, administrative processes and reserves. All of these factors influence their premium calculations.

Reserves are funds that help to absorb discrepancies between projected and actual costs. If an insurer needs to bolster its reserves or is able to use part of them within the regulatory framework, its premiums may develop differently from those of its competitors. This explains why there is no single insurer that is consistently cheaper across all age groups, car models and regions.

Risk equalisation

Basic insurance cannot refuse cover to a person on the grounds of age, diagnosis or previous use of medical services. To prevent insurers from competing by selecting only low-cost profiles, there is a system of risk equalisation amongst them.

This mechanism reduces inequalities, but does not eliminate all differences in expenditure across each portfolio. The premium is not calculated based on your individual state of health. It is calculated for a group of policyholders with common tariff characteristics, within a regulated, solidarity-based system.

Factors that do depend on your choice

Part of the monthly premium remains unchanged not because healthcare costs are rising, but because you choose a particular policy configuration. Reviewing this each year can have a significant impact on your household budget.

The excess is the annual amount you pay before the insurance contributes towards many of the covered costs. A higher excess usually reduces the premium, but increases the risk of out-of-pocket expenses if you need medical care. For those who rarely use healthcare services and have financial leeway, this may be a sensible option. For someone requiring regular treatment or facing predictable expenses, a low excess may offer greater peace of mind, even if the premium is higher.

The insurance model also matters. Under the standard model, you can usually go directly to authorised providers. Models based on a GP, a medical network, telemedicine or a pharmacy require you to go through a ‘gateway’ before certain consultations. In return, they usually offer lower premiums.

There is one condition for making savings: you must follow the agreed process. If you value maximum freedom of choice, the standard model may be a better fit. If you prefer initial guidance over the phone, from a chemist or your GP, an alternative model can reduce the cost without changing the compulsory benefits.

Accident cover is another important consideration. If you work at least eight hours a week for the same employer, you are normally covered against accidents by employers’ liability insurance. In that case, you can exclude this cover from your basic insurance and pay less. If you leave your job, reduce your hours or change your employment status, you should review this to avoid a gap in cover.

Your age group and the type of policy also have an impact. Premiums are categorised into groups such as children, young adults and adults. When moving from one category to another, the amount can change significantly, even if no other factors change.

The monthly premium is not the same as the annual cost

A responsible comparison is not limited to the monthly payment. The total cost depends on the premium, the excess and the statutory co-payment when using benefits. Choosing the lowest premium may be a sensible decision, but it is not always the most economical option at the end of the year.

Consider two scenarios. A healthy person with a stable income and the ability to cover unexpected expenses may be able to accept a high excess in exchange for a lower premium. Conversely, a family anticipating frequent doctor’s appointments, regular medication or treatments for several members should assess the overall cost and not just the immediate savings offered in the initial quote.

Individual premium reductions are also worth considering. These cantonal subsidies can lower the amount your household pays, but they do not alter the insurer’s official premium. If your income, family circumstances or canton change, check whether you are entitled to a reduction. This is a significant difference between the advertised price and the actual cost to your budget.

How to review your premium without being swayed by the cheapest advert

When you receive your premium notice for the coming year, compare quotes using the same criteria: canton, region, age, accident cover, excess and plan. If you change several elements at once, it will be difficult to know where the savings are coming from or what compromises you are accepting.

Next, check the terms and conditions of the policy. Do you need to call before booking an appointment? Can you continue seeing your current GP? What happens in an emergency? Is there a specific network of providers? The premium is just one part of the decision; the ease of use and the discipline required by the policy are also important factors.

Data must be traceable to official sources and presented without sponsored rankings or hidden incentives. Lamalux® helps turn public information on premiums into a visual comparison based on your preferences. No sales pressure, no data selling, and access to advice only if you request it.

When can you switch insurers?

To switch your basic insurance at the start of the year, your notice of cancellation must generally reach your current insurer by 30 November. It is not enough simply to send it on that day: it must be received in good time. The new insurer must accept your application for basic insurance, as they cannot refuse you on health grounds.

Don’t wait until the last week. Check the address, the policy type, the excess, accident cover and any requests for a reduction in premiums. Keep proof of posting and check that the new cover comes into effect on 1 January.

Switching isn’t always necessary. If your insurer continues to offer a competitive premium and a policy that works for you, staying with them may be a sensible choice. The key is to make an informed choice, not to renew simply out of habit.

Before you decide, look beyond the figure in the letter: your address, how you actually access healthcare and your ability to cover costs will determine which premium makes the most sense for you.