哈哈，俺就知道你會被某人攪淚奔的，他就會玩那些似是而非甚至不相幹的

好像信息量很大，但其實都沒到點子的玩藝。還一大段“砝碼”，太搞笑了！

隻有紅葉的回答是準確的（當然俺也湊合）。你看這是那個連接的一個回答：

You can only continue to work for the Cdn company while physically in US, if (a) the company has absolutely NO US activities, and (b) neither you nor the firm are benefitting from your presence in US.

If you live in US, all your income is taxable in US. Canada and province would tax you on all income paid as an employee of Cdn firm. If you work as a contractor, you would be liable in Canada only on income earned while physically in canada.

這兩段，哪地方有“左右都有理的”？

第一段，說的就是你的情況，不需ＴＮ；

第二段，是報稅的情形（與ＴＮ不相幹）。