Is basic health insurance the same at every insurer in Basel-Stadt?

Yes. What compulsory basic insurance (KVG/LAMal) covers is defined by federal law and is identical at every insurer in Switzerland. Insurers compete on price and service, not on cover. That is why a cheaper premium for the same deductible and model buys exactly the same medical treatment.

Basic health insurance 2026

Health insurance premiums Basel-Stadt 2026

The cheapest compulsory basic insurance for adults in Basel-Stadt costs CHF 442.45 a month in 2026 at CSS – CHF 2,500 deductible, Family doctor model. Compared with 2025 insurers here changed their premiums by +3.7 %.

Before you compare: what you are actually choosing

Basic health insurance (Grundversicherung, KVG/LAMal) is compulsory for everyone living in Switzerland, and what it covers is written into federal law. Every insurer must offer exactly the same medical cover and must accept you regardless of your health. So a cheaper premium does not buy you less treatment – it buys the same treatment from a different company.

What you actually choose is three things: the insurer, the deductible (Franchise, CHF 300 to 2,500 for adults) and the model – whether you may go to any doctor, or agree to call a family doctor, an HMO practice or a telemedicine line first. Restricting your first point of contact is what makes the saver models cheaper.

Two things are not your choice: the canton and municipality you live in, which set the premium region, and your age group. Supplementary insurance (Zusatzversicherung) is a separate, voluntary product with its own rules – insurers may reject you there.

What does health insurance cost in Basel-Stadt in 2026?

In the canton of Basel-Stadt – which covers Basel, Riehen, Bettingen – the cheapest compulsory basic health insurance for adults with a CHF 2,500 deductible costs CHF 442.45 per month in 2026, offered by CSS (Family doctor model). Source: Swiss Federal Office of Public Health (FOPH), as of 05.08.2026.

The most commonly chosen insurer here is Sympany (19.8% of the insured). Its cheapest offer costs CHF 455.55 a month – CHF 157 more a year than the cheapest offer, for cover that is identical by law. In basic insurance market share measures inertia, not quality.

Adults (26 and over)

Cheapest basic health insurance for Adults (26 and over) in the canton of Basel-Stadt in 2026, including accident cover, at the highest and lowest deductible.
Insurer	Model	Deductible 2,500	Deductible 300	vs. 2025
CSS	Family doctor model	CHF 442.45	CHF 570.75	−1.8 %
Assura	Family doctor model	CHF 442.65	CHF 570.95	+2.9 %
sana24	Family doctor model	CHF 447.65	CHF 575.95	±0.0 %
Helsana	Family doctor model	CHF 447.95	CHF 576.25	+2.2 %
Sympany	HMO model	CHF 455.55	CHF 583.85	+7.3 %
CONCORDIA	HMO model	CHF 459.75	CHF 588.05	+5.5 %
SWICA	Family doctor model	CHF 460.35	CHF 588.75	+0.3 %
Groupe Mutuel	Other saver models	CHF 460.45	CHF 588.45	+3.2 %

The lower premium at the 2,500 deductible is not a saving but a trade: you pay CHF 1,540 less in premiums a year, and carry up to CHF 2,200 more of your own treatment costs. The switch turns at roughly CHF 2,010 of treatment costs a year – below that the 2,500 deductible is cheaper, above it the 300. Work it out with your own costs

Young adults (19 to 25)

Cheapest basic health insurance for Young adults (19 to 25) in the canton of Basel-Stadt in 2026, including accident cover, at the highest and lowest deductible.
Insurer	Model	Deductible 2,500	Deductible 300	vs. 2025
CSS	Family doctor model	CHF 286.95	CHF 415.25	−5.7 %
Assura	Family doctor model	CHF 292.95	CHF 421.25	+3.3 %
Groupe Mutuel	Other saver models	CHF 293.75	CHF 421.75	−0.7 %
Groupe Mutuel	HMO model	CHF 296.15	CHF 424.15	−0.7 %
Sympany	HMO model	CHF 296.55	CHF 424.85	+4.1 %
Sympany	Other saver models	CHF 301.45	CHF 429.85	+2.3 %
Visana	Family doctor model	CHF 301.55	CHF 429.95	−0.8 %
Sanitas	Family doctor model	CHF 305.80	CHF 434.10	+9.2 %

Children (up to 18)

Cheapest basic health insurance for Children (up to 18) in the canton of Basel-Stadt in 2026, including accident cover, at the highest and lowest deductible.
Insurer	Model	Deductible 600	Deductible 0	vs. 2025
sana24	HMO model	CHF 32.05	CHF 56.15	±0.0 %
Agrisano	Other saver models	CHF 32.05	CHF 55.55	±0.0 %
Agrisano	HMO model	CHF 32.25	CHF 59.85	±0.0 %
sana24	Family doctor model	CHF 33.55	CHF 61.25	±0.0 %
SWICA	HMO model	CHF 34.05	CHF 62.65	+2.6 %
SWICA	Family doctor model	CHF 34.05	CHF 57.95	+2.6 %
SWICA	Other saver models	CHF 34.05	CHF 67.75	+2.6 %
SWICA	Standard (free choice of doctor)	CHF 34.05	CHF 67.75	+2.6 %

The lower premium at the 600 deductible is not a saving but a trade: you pay CHF 289 less in premiums a year, and carry up to CHF 600 more of your own treatment costs. The switch turns at roughly CHF 320 of treatment costs a year – below that the 600 deductible is cheaper, above it the 0. Work it out with your own costs

Which places belong to canton of Basel-Stadt? (3 municipalities, 196,036 residents)

Basel · Riehen · Bettingen

And what are you paying?

The tables above show the cheapest offers for your region. What you pay today is on your policy – and at identical legal cover, the difference is pure price.

Have my premium checked New in Switzerland

Children and young adults

Children are insured cheaply – from CHF 32.05 a month. That ends on 1 January following the 18th birthday: the same person then counts as a young adult and pays at least CHF 286.95, roughly 9 times as much and CHF 3,059 more a year. The jump comes with the change of age group, not with the birthday itself.

No compulsory deductible. For children the deductible is voluntary and the lowest tier is zero. Because the break-even point is low, zero is the cheaper choice for most children.
Half the co-payment cap. Above the deductible children pay at most CHF 350 a year themselves, against CHF 700 for adults. If several children of one family are insured with the same insurer, together they pay at most the cost-sharing of one adult – so at most CHF 300 deductible and CHF 700 co-payment (Art. 64 para. 4 KVG). With different insurers this cap does not apply.
Premium reductions for children are mandatory. Cantons must reduce the premiums of children in lower and middle income households by at least 80%, and those of young adults in education by at least 50% (Art. 65 para. 1^bis KVG). You apply to your canton of residence, not to the insurer.
Register before the birth. Registering a child only after birth risks rejection or a lifelong exclusion in supplementary insurance. It does not affect basic insurance – there, insurers must accept every applicant.

By when must I cancel to switch for 2026?

Basic insurance runs to the end of the calendar year with one month's notice. To switch for the 2026 premium year you therefore had to cancel in the previous year: the letter had to arrive at your previous insurer by 30 November 2025 – sending it in time is not enough, so send it by registered post.

The cancellation only takes effect once the new insurer confirms cover, so never cancel before you have that confirmation. Supplementary insurance has its own, usually earlier deadlines – by the end of November it is normally too late for those.

There is a second date almost nobody uses: if you have the ordinary CHF 300 deductible and free choice of doctor, you may also switch at the end of June, with three months' notice – so by the end of March (Art. 7 KVG). With a saver model or a higher deductible that route is closed and the year end is your only option.

Go through the switch with someone →

Premiums in other cantons

Where you live is worth several thousand francs a year in basic insurance – the Switzerland-wide overview puts all 26 side by side.

Aargau Appenzell Ausserrhoden Appenzell Innerrhoden Basel-Landschaft Bern Fribourg Geneva Glarus Graubünden Jura Lucerne Neuchâtel Nidwalden Obwalden Schaffhausen Schwyz Solothurn St. Gallen Thurgau Ticino Uri Valais Vaud Zug Zurich