SLKK in canton Basel-Stadt: twelve years of premiums
In canton Basel-Stadt, the lowest SLKK premium went from CHF 466.70 a month in 2015 to CHF 604.10 in 2026 — a rise of +29.4 %. The table below places it next to the canton's cheapest insurer, year by year.
| Year | This insurer | The cheapest | Gap |
|---|---|---|---|
| 2015 | CHF 466.70 | CHF 370.80 | CHF 95.90 |
| 2016 | CHF 486.20 | CHF 402.00 | CHF 84.20 |
| 2017 | CHF 526.00 | CHF 433.30 | CHF 92.70 |
| 2018 | CHF 514.40 | CHF 454.10 | CHF 60.30 |
| 2019 | CHF 547.10 | CHF 470.20 | CHF 76.90 |
| 2020 | CHF 540.30 | CHF 486.60 | CHF 53.70 |
| 2021 | CHF 546.40 | CHF 486.30 | CHF 60.10 |
| 2022 | CHF 524.10 | CHF 481.40 | CHF 42.70 |
| 2023 | CHF 550.30 | CHF 501.60 | CHF 48.70 |
| 2024 | CHF 555.80 | CHF 544.70 | CHF 11.10 |
| 2025 | CHF 584.10 | CHF 557.50 | CHF 26.60 |
| 2026 | CHF 604.10 | CHF 575.90 | CHF 28.20 |
Faster or slower than the rest?
SLKK rose +29.4 % over the period, against +55.3 % 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 2017: +8.2 % 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.
SLKK, canton by canton
Other insurers
Source: Federal Office of Public Health (FOPH), premium files from 2015 to today.