Insurance guide

TK vs AOK vs Barmer: Student Health Insurance

All three are public insurers with nearly identical coverage. The differences are in cost, English support, digital experience, and bonus programs.

At a glance

In 2026, TK costs €141.16 per month for students under 23 and €146.29 for students 23 to 30 without children. BARMER costs more because its Zusatzbeitrag (additional contribution rate) is higher at 3.29%: €146.29 is its standard student rate and €151.42 applies to students over 23 without children. AOK rates vary by region. TK is at 2.69% as of January 2026, below the 2.9% legal average. Most coverage is identical across all three insurers because German law sets the baseline.

Last updated: October 2026

Cost (2026)

Cost (2026): TK compared with AOK / Barmer
Criteria	TK	AOK / Barmer
Monthly premium (students under 23)	€141.16/month	BARMER: €146.29/month; AOK: varies by regional AOK
Monthly premium (students 23 to 30, no children)	€146.29/month	BARMER: €151.42/month; AOK: varies by regional AOK
Additional contribution rate (Zusatzbeitrag, Jan 2026)	2.69% (TK, below the 2.9% legal average)	BARMER: 3.29%; AOK: varies by regional AOK
Long-term care insurance (Pflegeversicherung)	Included (same rate for all)	Included (same rate for all)
Cost after age 30	Voluntary public insurance at a higher, income-based rate	Voluntary public insurance at a higher, income-based rate

Services and Coverage

Services and Coverage: TK compared with AOK / Barmer
Criteria	TK	AOK / Barmer
Core medical coverage	Identical (regulated by law)	Identical (regulated by law)
Dental coverage	Standard coverage; additional dental plans available	Standard coverage; some AOK branches offer dental bonuses
Mental health	Covered; TK offers online therapy programs	Covered; Barmer has partnership with online therapy platforms
International coverage	EU emergency coverage; TK travel insurance add-on available	EU emergency coverage; AOK coverage limited outside Germany
Preventive care bonuses	TK bonus programme (check tk.de for current terms)	AOK: check your regional AOK; BARMER Bonus: up to €200 a year

International Student Experience

International Student Experience: TK compared with AOK / Barmer
Criteria	TK	AOK / Barmer
English support	Excellent; full English website, phone, and chat	Limited English; AOK varies by region; Barmer improving
App quality	TK-App: highly rated, submit claims, find doctors, chat	AOK: functional but dated; Barmer: modern app with health coaching
Online registration	Online sign-up	AOK: check your regional AOK; Barmer: fully online
Branch network	TK: smaller branch network (digital-first)	AOK: largest branch network in Germany; Barmer: moderate

Reputation and Size

Reputation and Size: TK compared with AOK / Barmer
Criteria	TK	AOK / Barmer
Switching ease	Can switch after 12 months with any insurer	Can switch after 12 months with any insurer

Decision

The verdict

For most international students, TK (Techniker Krankenkasse) is the best choice. It has the lowest additional contribution rate, the best English-language support, a top-rated app, and consistently high customer satisfaction. Choose AOK if you are in a smaller city and value in-person branch access. Choose Barmer if you want strong digital health coaching features. Since core coverage is identical by law, the decision comes down to service quality and convenience.

Frequently asked questions

Yes. Most coverage is identical across all public health insurers (gesetzliche Krankenkassen) because it is defined by law. The differences are in the Zusatzbeitrag (additional contribution rate), bonus programs, extra services (travel insurance, online therapy), app quality, and customer service experience.

Students under 30 enrolled at a German university must choose public health insurance. You can only opt for private insurance if you formally exempt yourself from public insurance at enrollment, but this decision is binding for the entire duration of your studies. Private insurance is cheaper initially but has significant risks: no family coverage, premiums rise with age, and switching back to public insurance is very difficult.

The student rate normally ends at the end of the semester in which you turn 30, whatever your semester count; insurers allow exceptions for special personal reasons. You then switch to voluntary public insurance at a higher, income-based rate, or to private insurance. If you start working, your employer covers roughly half of the public insurance premium.

You can register online with TK or Barmer (or visit an AOK branch). You need your passport, university enrollment letter, and German address. After registration, your insurer reports your membership to the university electronically, which you need to complete enrollment.

Yes. After being with any public insurer for at least 12 months, you can switch to another by simply signing up with the new provider. They handle the cancellation of your old membership. The switch takes effect at the start of the following month after a notice period.

TK (Techniker Krankenkasse) is the strongest recommendation for international students who do not speak German. They offer a fully English website, English-speaking customer service by phone and chat, and a well-designed app that works in English. Barmer is improving its English support but is not yet on par with TK.

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TK vs AOK vs Barmer: Student Health Insurance

Cost (2026)

Services and Coverage

International Student Experience

Reputation and Size

The verdict

Related guides

Frequently asked questions

Are all public health insurers required to provide the same coverage?

Can I use private health insurance as a student in Germany?

What happens to my health insurance after I turn 30?

How do I register for public health insurance?

Can I switch health insurance providers?

Which insurer should I choose if I do not speak German?

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