They also escape from the double taxation that plagues the corporate sector: corporations have to pay corporate taxes and then their shareholders have to pay taxes on their dividends.
2
美国法人(公司)在全世界的所得都必须课税。如果公司的股东是外国人,他们只被课征在美国的所得税。
US legal person (corporation) is taxable based on worldwide income. If the SHAREHOLDERS are foreign persons, they are only taxable based on US income.