Krankenkasse comparison Germany: TK vs DAK vs Barmer vs AOK for foreigners (2026)
The four largest statutory health-insurance funds in Germany — Techniker Krankenkasse (TK), DAK-Gesundheit, Barmer and the AOK family — together cover roughly 75 % of all GKV members. The medical catalogue is identical by law; the differences are the Zusatzbeitrag (additional contribution), English-language support, app maturity and the speed of the M10 electronic notification needed for university matriculation.
This page is the foreigner-focused version of the German Krankenkasse comparison: who pays the lowest Zusatzbeitrag in 2026, which fund answers English emails, which fund matriculates students fastest, and how to switch from one to another under § 175 SGB V without losing cover.
Editor's note — this site partners with DAK-Gesundheit for the GKV stream because of the M10 electronic notification flow and the Garantietarif 120 student bonus. The comparison logic below applies to every statutory fund equally; pick the fund that matches your profile.
Quick answer: The 14.6 % base contribution is identical by law. Funds compete on the Zusatzbeitrag (average 1.7 % in 2026), English service, app maturity and M10 speed. TK is the largest, broadest-app choice; DAK-Gesundheit is the strongest student-friendly option; Barmer offers the largest urban branch network; AOK covers the regional federations.
TK vs DAK vs Barmer vs AOK — side-by-side comparison
| Krankenkasse | Members | Zusatzbeitrag 2026 | English support | Strength |
|---|---|---|---|---|
| Techniker Krankenkasse (TK) | ≈ 11.7 m | 1.45–1.70 % | Strong — English line, brochures, app | Nationwide Ersatzkasse, strong digital app, broad bonus catalogue |
| DAK-Gesundheit | ≈ 5.4 m | 1.70–2.00 % | Strong at urban branches; M10 e-notification | Partner fund of this site; Garantietarif 120 student bonus, Fit & Travel |
| Barmer | ≈ 8.6 m | 1.70–1.99 % | Limited — German default, English growing | Large second-largest Ersatzkasse, strong nationwide branch network |
| AOK (regional funds) | ≈ 27 m total | 1.40–2.30 % (regional) | Mixed — regional variation | Regional AOKs (Bayern, Plus, Nordwest, Rheinland/Hamburg, NordOst) — strong local branch density |
Sources: GKV-Spitzenverband public Zusatzbeitrag list, fund self-disclosure. Zusatzbeitrag ranges reflect 2026 announcements and are reviewed yearly. Not insurance advice.
Which Krankenkasse for which foreigner profile?
- Foreign student under 30 — DAK-Gesundheit (M10 speed, Garantietarif 120) or TK (English service, large urban branch network).
- Employed expat under JAEG (€77,400/year) — TK or DAK-Gesundheit lead on English support; Barmer and AOK valid if you prefer local branches.
- Family with children — every GKV fund offers free Familienversicherung; pick on the Zusatzbeitrag and the bonus catalogue for paediatric check-ups.
- Self-employed foreigner over JAEG — voluntary GKV at TK or DAK works; many opt instead for substitutive PKV (Debeka, Allianz Krankenversicherung, DKV, Hallesche) — see the costs-and-benefits overview.
- Newcomer not yet in GKV — bridge with Care Expatriate from €58/month until matriculation, employment or family-reunion processing opens GKV access.
Switching Krankenkasse — § 175 SGB V process
After 12 months at one statutory fund you can switch any other Krankenkasse with two months' notice to the end of the second following month. If your current fund raises the Zusatzbeitrag, the 12-month rule is waived (Sonderkündigungsrecht). The new fund handles the deregistration of the old one — you do not have to file a separate cancellation. The new eGK electronic health card ships within 2–4 weeks; existing referrals stay valid.
Frequently asked questions — Krankenkasse comparison Germany
Frequently Asked Questions
Which Krankenkasse is cheapest in Germany in 2026?
The 14.6 % base contribution is identical for every statutory fund by law. Funds compete only on the Zusatzbeitrag — the additional contribution each Krankenkasse sets individually. In 2026 the average Zusatzbeitrag is around 1.7 %. TK, BKK firmus, hkk and Audi BKK have historically sat below the average; DAK-Gesundheit, Barmer and most AOKs sit at or slightly above. The cheapest fund on paper is not always the cheapest in practice once English service, app maturity and processing speed are factored in.
Which Krankenkasse is best for expats and English-speaking foreigners?
TK ships English brochures and runs an English customer line; DAK-Gesundheit supports English at the urban branches and operates the M10 electronic notification needed for university matriculation. Techniker Krankenkasse (TK) and DAK-Gesundheit are widely seen as the most English-friendly of the large statutory funds. Barmer and the regional AOKs are gradually expanding English content but still default to German correspondence.
What is the difference between TK, DAK, Barmer and AOK?
GKV contribution: 17.8% of gross income up to €66,150/year (§ 241 SGB V, 2026 ceiling). All four are statutory health-insurance funds (Krankenkassen) and pay the identical GKV catalogue defined by the G-BA. TK and DAK are nationwide Ersatzkassen historically rooted in white-collar professions; Barmer is the second-largest Ersatzkasse; the AOK is a network of regional funds (AOK Bayern, AOK Plus, AOK Nordwest, AOK Rheinland/Hamburg and others). Differences are administrative — Zusatzbeitrag, app, English service, voluntary benefits (Wahltarife), bonus programmes — not in the medical catalogue.
Can I switch Krankenkasse as a foreigner?
Yes — the new fund handles the deregistration of the old one. The switch does not require any approval from the employer, the university or the Ausländerbehörde.
Which Krankenkasse should a foreign student pick?
DAK-Gesundheit is the partner we work with on this site for the student GKV stream because of the M10 electronic notification flow and the Garantietarif 120. TK is an equally valid choice and is popular at TU Berlin, TU Munich and the University of Heidelberg. Whatever fund you pick, you need the M10 confirmation forwarded to your university Immatrikulationsamt before enrolment closes.
Do I need to be in GKV to work in Germany?
Yes, if your gross salary is below the 2026 JAEG threshold of €77,400/year. Above that threshold you may opt into substitutive private health insurance (PKV). Foreigners on a residence permit who do not yet qualify for either — newcomers, freelancers in the first months, family-reunion files — use approved Incoming insurance such as Care Expatriate from €58/month until GKV or PKV opens.
What is the Zusatzbeitrag and how does it work?
The Zusatzbeitrag is the additional contribution each Krankenkasse adds to the 14.6 % base rate. It is set individually by each fund and reviewed yearly. In 2026 the average is approximately 1.7 %. The employer pays half. If the fund raises the Zusatzbeitrag, you have a special right of cancellation under § 175 SGB V regardless of the 12-month minimum membership.
Are private Krankenversicherung carriers like Debeka or Allianz Krankenversicherung the same as a Krankenkasse?
GKV contribution: 17.8% of gross income up to €66,150/year (§ 241 SGB V, 2026 ceiling). No. A Krankenkasse is a statutory GKV fund. Debeka, Allianz Krankenversicherung, DKV, Hallesche, Signal Iduna, Gothaer, Barmenia and Continentale are private health insurers (PKV) — separate legal regime under § 203 VVG, medical underwriting required, premium based on age and risk, not on income.
Does the Krankenkasse decide which doctor I can see?
GKV contribution: 17.8% of gross income up to €66,150/year (§ 241 SGB V, 2026 ceiling). No. Within the GKV catalogue you are free to pick any contract doctor (Vertragsarzt) — the eGK electronic health card works at any practice that has a Kassenzulassung, which is the vast majority. Specialist visits usually need a referral (Überweisung). Hospitals require admission via either the family doctor or the emergency department.
What happens to my Krankenkasse coverage if I lose my job?
GKV contribution: 17.8% of gross income up to €66,150/year (§ 241 SGB V, 2026 ceiling). Your fund continues to insure you. Within the first month after the end of employment you switch from compulsory to voluntary GKV membership (freiwillige Versicherung) or — if you draw ALG I — to ALG-I-insured status, where the employment agency pays the contribution. The fund cannot terminate you because of unemployment.
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