CSS or Assura-Basis in Region 1 of canton Basel-Landschaft?
In Region 1, CSS is CHF 218.40 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 559.10 a month, Assura-Basis to CHF 577.30. The gap is CHF 218.40 a year, 300-franc deductible, accident cover included.
What the question hides
Neither is the cheapest here: that is Sanitas, at CHF 558.30 a month. Moving there rather than to CSS is worth CHF 9.60 more a year. Sanitas
Where they stand in the region
CSS ranks 3 and Assura-Basis ranks 11, out of 23 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 664.00 | CHF 671.20 | − 7.20 |
| 500 | CHF 652.40 | CHF 659.60 | − 7.20 |
| 1'000 | CHF 623.20 | CHF 630.40 | − 7.20 |
| 1'500 | CHF 594.00 | CHF 601.20 | − 7.20 |
| 2'000 | CHF 564.90 | CHF 572.10 | − 7.20 |
| 2'500 | CHF 535.70 | CHF 542.90 | − 7.20 |
Model by model
Each insurer’s lowest rate in each model type, 300-franc deductible.
| Model | CSS | Assura-Basis |
|---|---|---|
| Family doctor | CHF 559.10 | CHF 577.30 |
| Other model | CHF 600.90 | — |
| Free choice of doctor | CHF 664.00 | CHF 671.20 |
How they moved in this region
Against 2025, CSS moves by + 2.2 % and Assura-Basis by + 1.5 % in this region.
Source: Federal Office of Public Health (FOPH), official premiums.