How do you express tax exemption?

明示你如何交税免税？

Year tax exemption for Start-up Companies.

新创的公司可获3年免税。

Some foreign investors enjoy tax exemption.

一些外商享受免税政策。

The tax exemption helped us in our last fiscal year.

在我们上一个财政年度中，免税的政策帮助了我们。

His plan doubles the size of the tax exemption for dependants.

他的计划使得对家眷的免税规模翻番。