Basic vs Supplementary Insurance in Switzerland
Swiss health insurance is built on two very different pillars: mandatory basic insurance (KVG) and optional supplementary insurance (VVG). They look similar on paper, but they are governed by different laws, priced differently, and treat you very differently as a customer. Understanding the distinction is the single most important step in choosing the right cover for your family.
This guide explains what each type of insurance covers, how they interact, what they cost, and how to decide which supplementary modules are actually worth paying for.
Quick Summary
Basic insurance (KVG) is legally required for every resident of Switzerland and covers medically necessary treatment. Every insurer must accept every applicant and the benefits are defined by federal law, so coverage is identical across companies. Supplementary insurance (VVG) is optional, priced by the insurer, requires medical underwriting, and adds comfort or scope — for example private hospital rooms, dental care, glasses, alternative medicine, or worldwide travel cover.
Key Takeaways
- KVG basic insurance is compulsory; VVG supplementary insurance is voluntary.
- Basic benefits are identical at every insurer — only the premium changes.
- Supplementary insurers can decline you or exclude conditions based on your medical history.
- Buy supplementary cover while you are young and healthy; it is much harder to add later.
- You can hold basic and supplementary insurance with different companies.
- Review your policies every year before the 30 November cancellation deadline.
What Is Basic Health Insurance (KVG)?
Basic insurance is regulated by the Federal Health Insurance Act (Krankenversicherungsgesetz, KVG). Every person living in Switzerland must have it, typically within three months of arrival or birth. The catalogue of covered services is set by the federal government and is the same at every insurer.
What basic insurance covers
- General practitioner and specialist consultations
- Hospital treatment in the general ward of your canton of residence
- Emergency care throughout Switzerland
- Prescription medicines on the official list
- Maternity care, childbirth and eight postnatal check-ups
- Laboratory tests and medically necessary imaging
- Preventive care such as vaccinations and cancer screening
- Physiotherapy and psychotherapy with a medical referral
How much does it cost?
Premiums vary by canton, age group and insurer, but the benefits do not. Adults typically pay between CHF 300 and CHF 600 per month; children pay significantly less. You also carry an annual deductible (franchise) between CHF 300 and CHF 2,500 and a 10% co-payment up to CHF 700 per year.
What Is Supplementary Insurance (VVG)?
Supplementary insurance is regulated by the Insurance Contract Act (Versicherungsvertragsgesetz, VVG). It is a private contract between you and the insurer. That means the insurer can decide who to accept, what to charge, and what to exclude — and you can decide whether the added benefit is worth the premium.
What supplementary insurance can cover
- Private or semi-private hospital rooms and free choice of specialist
- Dental treatment, orthodontics and dental prevention
- Glasses, contact lenses and laser eye surgery
- Alternative medicine beyond the KVG minimum (osteopathy, TCM, homeopathy)
- Fitness, prevention and health-promotion contributions
- Worldwide emergency cover and repatriation
- Additional maternity benefits, birth preparation and postnatal support
Underwriting and age matter
Supplementary insurers ask health questions. Pre-existing conditions can lead to exclusions, higher premiums or refusal. Premiums also rise with age. Signing up while you are young and healthy locks in significantly lower lifetime costs.
Side-by-Side Comparison
| Feature | Basic insurance (KVG) | Supplementary insurance (VVG) |
|---|---|---|
| Legal basis | Federal law (KVG) | Private contract (VVG) |
| Mandatory? | Yes | No |
| Acceptance | Required by law | Medical underwriting |
| Benefits | Identical at every insurer | Defined by each contract |
| Deductible | CHF 300–2,500 | Varies by product |
| Change insurer | Every year by 30 November | Contract terms apply, often multi-year |
| Best time to sign up | Within 3 months of arrival or birth | While young and healthy |
How to Decide What You Actually Need
1. Start with basic insurance
Pick a reliable basic policy first. Because benefits are identical, focus on the premium, the deductible that fits your expected use, and whether an alternative insurance model (family doctor, HMO, telemedicine) reduces the cost.
2. Layer supplementary cover thoughtfully
Ask two questions for every module: How likely am I to use this? and What would it cost me out of pocket without cover? Hospital cover, dental for children and worldwide travel are the modules families most often value.
3. Review annually
Basic premiums are announced each autumn and can be cancelled by 30 November for the following year. Supplementary contracts have their own notice periods — check before you switch.
Common Mistakes to Avoid
- Waiting to buy supplementary insurance until a treatment is already needed.
- Choosing the highest deductible without checking expected healthcare usage.
- Assuming private hospital cover is automatically included — it is not.
- Cancelling basic insurance before the new policy has been confirmed in writing.
- Forgetting to insure a newborn within three months of birth.
Frequently Asked Questions
Is supplementary insurance really necessary?
Not legally, but many families find hospital, dental and travel modules valuable — especially when signed up young.
Can I have basic and supplementary insurance with different companies?
Yes. You are free to combine any Swiss basic insurer with any Swiss supplementary insurer.
Can an insurer refuse me for basic insurance?
No. Every Swiss insurer must accept every applicant for basic insurance regardless of age or health.
When can I cancel basic insurance?
By written notice received by your insurer no later than 30 November for the following calendar year.
Does supplementary insurance cover pre-existing conditions?
Usually not. Insurers may exclude related treatments or decline the application entirely.
Your next step
Basic insurance guarantees that everyone in Switzerland has access to high-quality medical care. Supplementary insurance is where personal preference, family situation and long-term planning come in. Choosing well means understanding both — and reviewing your setup every year.
If you would like an impartial, English-language review of your current policies, our advisors can help you compare options across the Swiss market at no cost.
Related resources
- How Swiss Health Insurance Works
- Mandatory vs Supplementary Health Insurance for Babies in Switzerland
- The Most Common Swiss Insurance Mistakes
Official Swiss sources
- Federal Office of Public Health (FOPH) — Compulsory Health Insurance — https://www.bag.admin.ch/bag/en/home/versicherungen/krankenversicherung.html
- ch.ch — Health insurance in Switzerland — https://www.ch.ch/en/health-insurance/
- Swiss Financial Market Supervisory Authority (FINMA) — Supervision of supplementary health insurance — https://www.finma.ch/en/
- Fedlex — Federal Health Insurance Act (KVG) — https://www.fedlex.admin.ch/eli/cc/1995/1328_1328_1328/en
About this article
Author: Swiss Family Insurance Editorial Team
Last reviewed: July 2026
Reading time: 6 minutes
Disclaimer: This article provides general information about Swiss insurance and does not replace personalised insurance, legal, financial, tax or medical advice.