If you are a US citizen or a US permanent resident (i.e. have a green card), you must file a US income tax return regardless where you live in the world. As an overseas resident, you can exclude the first $90,000 or so of earned income and some additional if you qualify for the housing allowance exclusion. But you pay US taxes on the rest, subject to an offset of any foreign taxes paid on the same income.
For details, look at Publication 54 on the IRS website: Internal Revenue Service
Cheers,
Bev
For details, look at Publication 54 on the IRS website: Internal Revenue Service
Cheers,
Bev