[cromka]

Although it is important to remember that any tax one would have to pay to US IRS is for the difference between what a foreign country and US would charge, if former charged less. This only applies to countries with which US signed a treaty for the avoidance of double taxation.

[kavrick]

I'll note Canada has a similar treaty with the US and this applied to me while working / living there for a number of years.

They wanted to tax me on my "worldwide" income and requested that I pay the difference between what I was making in the US vs. what I would be paying in Canada had I been living there.

It wasn't something I had considered in my planning so good to look into before you go!

[Nursie]

Interesting - from this and a couple of other comments I can see my idea that you just had to pay US income tax regardless was over-simplified and wrong.

It's still a little weird to me though, as someone who would expect my own country to relinquish all tax demands if I'm not actually there!