Corporate income tax consists of 3 components: federal, cantonal and municipal. Each canton has its own calculator. Here is the list of them:
Tax Calculation - EZYcount. The cheapest cantons right now are Zug (11.8% in municipality Baar), Lucerne (11.3% in Meggen) and Nidwalden (12.7%, municipality-independent).
Dividends are subject to 35% WHT. These 35% can be reclaimed in the personal income tax declaration (for Swiss nationals or residents) in which you declare the dividends as your income. Dividends are taxed at ca. factor 0.65 of your normal income tax rate.
Dividends to non-residents are subject to the DTAs. Here's a list of the current rates:
Switzerland - Corporate - Withholding taxes
You can get away with 0% for corporations in certain countries (i.e. Georgia).
The personal income tax is dependent on your residence status. If have the L or B permit (which you would get for at least the first 5 years of your residency) your company pays a withholding tax on your income which is based on the canton (i.e. Zug, Nidwalden) you live in. There is a calculator for it:
https://en.comparis.ch/steuern/quellensteuerrechner/quellensteuervergleichRigh now, Zug is the cheapest.
If you have the C permit or you're a Swiss national, you're taxed at the end of the year. This kind of taxation depends on your municipality. Moving to a different municipality in the same canton (i.e. next village) or to a different canton can play a big role in your personal taxes. Here is another calculator:
Calculate taxes and compare municipalities – comparis.ch
If you own the business, it is not enough to declare profits and pay the corporate income tax and then pay out the dividends (and the WHT). You're bound to:
- pay yourself a fair wage (and therefore pay into various social security schemes)
- build reserves according to a formula if you pay out more than 5% of the yearly income / share capital.
You can mix and match your wage and dividends where dividends are a bit lower taxed in the end.
But it is nowhere the 10% in the end. The complete gross->net cycle (taxes corporate and personal, social security, domicile - i.e. Regus, other insurances for a Swiss LLC) is more in the 25-35% bracket if we're talking about mid-6-figures for a Swiss resident.