CSS or Assura-Basis in Region 1 of canton Valais?
In Region 1, CSS is CHF 70.80 a year cheaper than Assura-Basis for an adult on the same profile. Here is the detail — and what a third insurer would do.
The verdict, in this region
CSS comes down to CHF 499.70 a month, Assura-Basis to CHF 505.60. The gap is CHF 70.80 a year, 300-franc deductible, accident cover included.
What the question hides
Neither is the cheapest here: that is Atupri, at CHF 481.20 a month. Moving there rather than to CSS is worth CHF 222.00 more a year. Atupri
Where they stand in the region
CSS ranks 10 and Assura-Basis ranks 15, out of 26 active insurers in this region.
Deductible by deductible
With free choice of doctor, the one model every insurer offers — and therefore the only one where a row-by-row comparison compares the same thing.
| Deductible | CSS | Assura-Basis | Gap |
|---|---|---|---|
| 300 | CHF 581.00 | CHF 574.50 | + 6.50 |
| 500 | CHF 569.40 | CHF 562.90 | + 6.50 |
| 1'000 | CHF 540.20 | CHF 533.70 | + 6.50 |
| 1'500 | CHF 511.00 | CHF 504.50 | + 6.50 |
| 2'000 | CHF 481.90 | CHF 475.40 | + 6.50 |
| 2'500 | CHF 452.70 | CHF 446.20 | + 6.50 |
Model by model
Each insurer’s lowest rate in each model type, 300-franc deductible.
| Model | CSS | Assura-Basis |
|---|---|---|
| Family doctor | CHF 499.70 | CHF 505.60 |
| Other model | CHF 520.00 | CHF 505.60 |
| Free choice of doctor | CHF 581.00 | CHF 574.50 |
How they moved in this region
Against 2025, CSS moves by + 4.8 % and Assura-Basis by + 6.5 % in this region.
Source: Federal Office of Public Health (FOPH), official premiums.