No. It's not what you think.
Le forfait fiscal - Afschrift Tax & Legal
Requirements (in English):
- not have Swiss nationality;
- settle in Switzerland for the first time, or after an absence from the country of at least 10 years;
- not carry out any dependent or self-employed gainful activity in Switzerland
This is a sort of territorial tax system. It's not easy as it seems to be eligible, especially what I said when making 6 million in income.
Why do you think
Zug is a very popular place for wealthy foreigners earning millions? They unfortunately don't meet the requirements of the lump sump taxation. And if 99% of them did, then what's the point of very low tax cantons like Zug when you only need to pay 400k CHF instead of 20% effectively on 6 million?
Plus many cantons are trying to abolish the lump sum regime (ZH,BS,AR,BL,SH so far) while others are making the condition more difficult to apply.
One day, the lump sum regime will go away nationwide.