How to Change Public Health Insurance in Germany

You can change your public health insurer in Germany if you are insured in the GKV system and meet the rules for choosing a Krankenkasse. Most people switch because of a high Zusatzbeitrag, poor service, an inconvenient app, missing extra benefits, or a job change. In 2026, the basic GKV contribution remains 14.6%, while each insurer sets its own additional contribution, so you need to compare not only price but also coverage beyond the mandatory minimum.

What exactly you can change

In the health insurance system, there are two major segments: public insurance (GKV) and private insurance (PKV). This article is about switching from one public Krankenkasse to another, for example from AOK to BARMER, DAK-Gesundheit, Techniker Krankenkasse, HEK, or another insurer open in your federal state or throughout Germany.

Switching from GKV to private health insurance is a separate decision. It depends on your status, income, family situation, and long-term risks. For employees, the Jahresarbeitsentgeltgrenze matters: in 2026, the BMG lists EUR 77,400 gross annual income as the compulsory insurance threshold for employees. But even if you are eligible for PKV, you still need to consider that private insurance does not provide free family insurance for spouses and children under GKV rules.

Why switch Krankenkasse

Most mandatory medical services in GKV are regulated by law, so basic coverage is similar across insurers. The article 95% of services are exactly the same explains this in more detail. The difference appears in the details:

• the size of the Zusatzbeitrag;
• how quickly claims and requests are processed;
• the quality of the app and online services;
• support in English or other languages;
• bonus programs;
• additional services beyond the mandatory minimum;
• coverage for preventive care, osteopathy, dental cleaning, travel vaccinations, or health courses;
• convenience in communication for sick leave, family insurance, and long-term treatment.

Switching makes sense if the savings are meaningful or if the new insurer fits your situation better: a family with children, a chronic condition, fertility treatment, frequent business trips, a need for good digital service, or a specific prevention program.

How the GKV contribution works

Contributions to public health insurance in Germany consists of several parts.

Part of the contribution	How it works
Allgemeiner Beitragssatz	Basic GKV contribution: 14.6% of income up to the Beitragsbemessungsgrenze
Zusatzbeitrag	The additional percentage charged by a specific Krankenkasse; each insurer sets it individually
Pflegeversicherung	Mandatory long-term care insurance; the rate depends in part on whether you have children and how many

For employees, the GKV contribution and Zusatzbeitrag are usually split between the employee and the employer. Self-employed people, voluntarily insured members without an employer, and some pensioners may pay more themselves, so the difference in Zusatzbeitrag is especially noticeable for them.

Do not use old rate tables as the basis for your decision. The GKV-Spitzenverband publishes an up-to-date Krankenkassenliste with current Zusatzbeitrag values by insurer. The June 2026 list shows substantial differences: Zusatzbeitrag can vary by percentage points between insurers, which means the final savings depend on your income and status.

How to estimate the savings

Savings are calculated based on the difference in Zusatzbeitrag and the income on which contributions are charged. For an employee, the actual effect is usually shared with the employer, while for a self-employed person it may be felt in full.

Example logic without tying it to a specific insurer:

1. Find the current Zusatzbeitrag of your insurer.
2. Find the Zusatzbeitrag of the new insurer in the GKV-Spitzenverband list or on the insurer’s own website.
3. Calculate the difference in percentage points.
4. Multiply that by your annual income, but take the Beitragsbemessungsgrenze into account.
5. If you are an employee, usually estimate your own half if the contribution is split with the employer.

Higher income does not always mean unlimited growth in contributions because GKV uses a Beitragsbemessungsgrenze. You should check the exact value for the year in official sources, because limits change annually.

When you can change insurers

The standard rule is that membership in your chosen Krankenkasse is usually tied to a minimum period of 12 months. After that, you can move to another insurer subject to the applicable notice period. If your insurer introduces a Zusatzbeitrag for the first time or increases it, you may get a Sonderkuendigungsrecht, a special right to switch before the ordinary commitment period ends.

Usually, membership ends at the end of the second month after the switch request. For example, if the switch is arranged in January and all conditions are met, the new insurer may begin coverage in April. Dates must follow each other without a gap: you cannot live in Germany without health insurance.

There are situations where special rules apply:

• changing employer;
• starting to receive a pension;
• moving into voluntary insurance (Freiwillige Krankenversicherung);
• special Wahltarife, such as sick pay tariffs for self-employed people;
• family insurance, where relatives follow the main insured person.

If you have a Wahltarif, for example a tariff related to sick leave, ongoing treatment, Burgergeld or Jobcenter involvement, family insurance, or a dispute over your insurance status, it is better to confirm the deadlines with both insurers in writing. The same applies when moving into voluntary public insurance.

How to choose a new Krankenkasse

Do not compare only the Zusatzbeitrag. A cheaper insurer may still be a bad deal if it does not cover the extra services you need or responds too slowly.

Check:

• whether the insurer is open in your federal state or throughout Germany;
• the amount of the Zusatzbeitrag;
• family insurance conditions and how they communicate about it;
• the digital card, app, and electronic documents;
• support in English or another language;
• bonus programs;
• coverage for osteopathy, preventive care, travel vaccinations, dental cleaning, health courses, fertility treatment, and specific support programs for people with disabilities;
• rules for ongoing treatment;
• service reviews, but without relying only on ratings.

AOK is often organized by federal state, while some insurers operate across all of Germany. Techniker Krankenkasse, BARMER, DAK-Gesundheit, HEK, and other federally open insurers are available more widely, but the exact list and Zusatzbeitrag should be checked on the date of the switch. For a market comparison, you can use the separate overview of several public insurers, and for TK, the material Techniker Krankenkasse (TK).

What happens to treatment and services

Basic treatment should not be interrupted just because you switch insurers, but administrative approvals may require attention.

Before switching, check separately:

• Psychotherapy, rehabilitation, and long treatment courses. If a service has already been approved by the old insurer, clarify what must be transferred to the new one.
• Hilfsmittel. A wheelchair, brace, breathing equipment, or other aids may be tied to the old insurer’s contract with the supplier.
• Medicines and pharmacies. The logic of prescriptions in the pharmacy usually stays the same, but Rabattvertraege may differ.
• Additional services. Osteopathy, dental cleaning, bonuses, and travel vaccinations depend on the new insurer’s rules.
• Family insurance. Spouses and children who are included free of charge usually switch together with the main insured person.

If the procedure is expensive or has already been approved, ask the new insurer to confirm the continuation of coverage in writing before the actual switch takes effect.

If you want to look specifically at TK, use the neutral overview Switching public health insurance as a reference, and submit an application only after comparing its terms with other insurers.

Step-by-step switching guide

1. Choose a new Krankenkasse and verify that it is open for your place of residence or work.
2. Compare Zusatzbeitrag and additional services using the official GKV-Spitzenverband list and the insurer’s website.
3. Apply to the new insurer online, in writing, or through its service channel.
4. The new insurer will usually contact the old one itself through the electronic Meldeverfahren, so a separate written Kündigungsschreiben is often not required.
5. Inform your employer about the new insurer so contributions are routed correctly.
6. Wait for confirmation of the membership start date and your new electronic Gesundheitskarte.
7. Check that family insurance, laufende Behandlungen, Hilfsmittel, and bonus programs have been transferred or set up again.

Do not throw away the old card before the new insurance begins, and do not cancel payments yourself until you have a confirmed switch date.

What to tell your employer

If you are employed, your employer must know which Krankenkasse should receive the contributions. Tell them the name of the new insurer and the start date of your membership. If you are changing jobs but want to stay with your old insurer, tell the new employer that as well so your choice is transmitted correctly.

Common mistakes

• Choosing an insurer only because of advertising or rankings without checking the Zusatzbeitrag.
• Comparing last year’s rates even though insurers have already changed the Zusatzbeitrag.
• Not considering that employee savings are usually shared with the employer.
• Switching during treatment approval without written confirmation from the new insurer.
• Forgetting about family insurance for spouses and children.
• Not telling your employer about the insurer change.
• Ignoring a Wahltarif that may bind you for longer than the usual period.

FAQ

Can a public insurer refuse the switch?

If you meet the GKV conditions and the insurer is open for your region or nationwide, it usually does not select customers based on health, age, or diagnosis. But it will verify your insurance status and the legal conditions for switching.

Do I need to cancel the old insurance myself?

For a normal GKV switch, the new insurer usually starts the electronic procedure. In some situations, especially with a Sonderkuendigungsrecht or a complex status, it is better to clarify the process with the new insurer and keep written confirmation.

What matters more: a low Zusatzbeitrag or additional services?

That depends on your situation. For a healthy person without special needs, price and service matter more. For a family, a person with a chronic illness, or someone planning treatment, an insurer with a higher contribution but better coverage for specific services may be more worthwhile.

Can a child or spouse in Familienversicherung switch separately?

Usually no. In free family insurance, family members are tied to the main insured person. If the main insured person changes Krankenkasse, the family usually moves with them.

Do I need to change doctors after switching insurers?

In most cases, no, as long as you are dealing with doctors who work with the gesetzliche Krankenversicherung system. But you should check separate extra programs, selective contracts, and already approved services in advance.