Aargau vs Solothurn Tax Comparison
Side-by-side income tax comparison on a CHF 120’000 salary — federal + cantonal + municipal tax, social contributions and take-home pay. Capital-city municipal multipliers, 2025/2026 rates.
Full breakdown
| Item | Aargau | Solothurn | Difference |
|---|---|---|---|
| Annual gross salary | CHF 120’000 | CHF 120’000 | — |
| Social contributions (AHV/ALV/BVG/NBU) | CHF 17’280 | CHF 17’280 | — |
| Total deductions | CHF 4’882 | CHF 4’882 | — |
| Taxable income | CHF 97’838 | CHF 97’838 | — |
| Federal direct tax | CHF 2’707 | CHF 2’707 | — |
| Cantonal + municipal tax | CHF 17’903 | CHF 19’839 | |
| Total tax | CHF 20’610 | CHF 22’546 | |
| Effective tax rate | 17.2% | 18.8% | |
| Marginal tax rate | 34.1% | 37.1% | |
| Take-home / year | CHF 82’110 | CHF 80’174 | |
| Take-home / month | CHF 6’842 | CHF 6’681 |
Figures are estimates using capital-city municipal multipliers and standard deductions. For binding numbers, use the official calculators linked above. Sources: ESTV (federal), cantonal tax administrations.
Try other salary levels
Other comparisons
People also asked
Which canton has lower taxes — Aargau or Solothurn?▾
On a CHF 120’000 salary, Aargau leaves you with CHF 1’936 more take-home per year (2.4% difference) compared to Solothurn.
What is the effective tax rate in Aargau?▾
On CHF 120’000, the effective rate in Aargau (capital city) is approximately 17.2%, including federal direct tax and cantonal/municipal tax.
What is the effective tax rate in Solothurn?▾
On CHF 120’000, the effective rate in Solothurn (capital city) is approximately 18.8%, including federal direct tax and cantonal/municipal tax.
Estimates only. Always verify with the official cantonal calculator before making a relocation decision.
Related Swiss tax guides
Quellensteuer (Withholding Tax) Explained
Most foreign employees in Switzerland pay Quellensteuer — tax deducted at source by the employer. Understanding tariff codes, correction rights and the CHF 120,000 threshold is essential.
Read guidePillar 3a — Tax-Free Retirement Savings
Pillar 3a is the single most effective legal tax deduction in Switzerland. Every franc you contribute reduces your taxable income — saving hundreds to thousands per year.
Read guideAHV social security for employees
AHV (Alters- und Hinterlassenenversicherung) is Switzerland's state pension system. Contributions are mandatory for all employees and split between employer and employee.
Read guide