My family and I all have green cards, but for the last 3 years, we have been living outside the US (in India) with re-entry permits. I work for a large tech company and have technically been "on assignment" for that time, but honestly, we've more or less shifted base entirely to India at this point.
Our re-entry permits are coming up for renewal soon. We're considering giving up my wife's and kids' green cards, and keeping only mine. The reason for keeping mine is twofold: (1) most of my assets are in the US, and I want to take my time shifting to non-US-domiciled assets to avoid the non-resident estate tax; and (2) I still travel frequently to the US -- 3 or 4 times a year -- for work.
Do you foresee any problems with my family giving up their green cards now, and me holding on to it?
As a green card holder living outside the US, are you subject to US federal taxes, e.g., global taxation?
Yes, but indirectly, since in order to maintain green card they have to be on US soil for the bigger part of the year, which implies tax residency.
That having said, not everyone spends 6 months to maintain their card and without a reasonable need to do so, it risks losing the status.
Yes. I don't need to spend time in the US to keep the green card, though, because of the reentry permit.