CSS in canton Thurgau: twelve years of premiums
In canton Thurgau, the lowest CSS premium went from CHF 312.80 a month in 2015 to CHF 459.90 in 2026 — a rise of +47.0 %. The table below places it next to the canton's cheapest insurer, year by year.
| Year | This insurer | The cheapest | Gap |
|---|---|---|---|
| 2015 | CHF 312.80 | CHF 276.90 | CHF 35.90 |
| 2016 | CHF 330.40 | CHF 294.10 | CHF 36.30 |
| 2017 | CHF 351.80 | CHF 294.10 | CHF 57.70 |
| 2018 | CHF 365.20 | CHF 330.90 | CHF 34.30 |
| 2019 | CHF 376.30 | CHF 342.80 | CHF 33.50 |
| 2020 | CHF 383.00 | CHF 345.50 | CHF 37.50 |
| 2021 | CHF 378.00 | CHF 343.50 | CHF 34.50 |
| 2022 | CHF 373.00 | CHF 343.50 | CHF 29.50 |
| 2023 | CHF 385.60 | CHF 377.70 | CHF 7.90 |
| 2024 | CHF 421.00 | CHF 385.20 | CHF 35.80 |
| 2025 | CHF 446.90 | CHF 400.60 | CHF 46.30 |
| 2026 | CHF 459.90 | CHF 429.70 | CHF 30.20 |
Faster or slower than the rest?
CSS rose +47.0 % over the period, against +55.2 % for the cheapest insurer in the same place. The gap narrowed — which does not mean this insurer is the cheapest today, only that it climbed more slowly.
The year that hurt — The steepest year-on-year jump was 2024: +9.2 % in one go.
Figures for an adult, CHF 300 deductible, accident cover included — the only profile defined identically across all twelve years. Each year this is the lowest premium the insurer offered, all models combined.
CSS, canton by canton
Other insurers
Source: Federal Office of Public Health (FOPH), premium files from 2015 to today.