The income tax in Switzerland, and various other countries, is progressive.
This means that higher income levels are subject to higher tax rates.
Switzerland uses a marginal tax rate system, where different portions of an individual's income are taxed at different rates.
The higher the income, the higher the tax rate applied to the corresponding income bracket.
Taxable income includes a range of sources, such as employment income, self-employment income, rental income, investment income, and other forms of revenue.
However, deductions may be available for certain expenses, such as social security contributions, health insurance premiums, and other allowable deductions outlined in the tax regulations for your canton.
Please note that all content within this response has been prepared for information purposes only. This response does not constitute financial, legal or tax advice. Always ensure you speak to a regulated Financial Adviser before making any financial decisions.