[varietystore]

找到标准答案了 - http://www.cra-arc.gc.ca/tx/bsnss/tp...lntry-eng.html

你说的是对的，注册了必须要collect GST/HST - 看来我是想过头了。。。。。。

摘自 http://www.cra-arc.gc.ca/tx/bsnss/tp...lntry-eng.html

If you decide to register voluntarily:

• you have to charge, collect, and remit GST/HST on your sales of taxable goods and services. You will also have to file GST/HST returns on a regular basis; and
• you have to stay registered for at least one year before you can cancel your registration (unless you stop your commercial activities).