@Zmir ,
In general , as a US citizen you will need to file a return on your world income and be taxed by the USA. This is even though your tax liability may be zero.
You also have to file FBAR at least because your foreign bank account value is likely to be above US$10,000; and FATCA ( form 8938 ) along with your return. Neither of these forms result in any taxes but not filing these when required can expose you to onerous penalties.
Here is a comparison between these two forms --> Comparison of Form 8938 and FBAR requirements | Internal Revenue Service
Do you need more help on these forms etc.?
Which country are you moving to ?
Is there more I can do for you ?
