哈哈，俺就知道你会被某人搅泪奔的，他就会玩那些似是而非甚至不相干的

好像信息量很大，但其实都没到点子的玩艺。还一大段“砝码”，太搞笑了！

只有红叶的回答是准确的（当然俺也凑合）。你看这是那个连接的一个回答：

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.

这两段，哪地方有“左右都有理的”？

第一段，说的就是你的情况，不需ＴＮ；

第二段，是报税的情形（与ＴＮ不相干）。