Since you’re abroad, you actually get an extension on filing, but you absolutely still need to file your American taxes while living abroad.
What’s the difference between excluding foreign earned income and taking the foreign earned income credit?
According to the IRS, If you are a U.S. citizen or resident alien living or traveling outside the United States, you generally are required to file income tax returns, estate tax returns, and gift tax returns and pay estimated tax in the same way as those residing in the United States.
FBAR stands for Foreign Bank Account Reports and all US citizens and green card holders who have $10,000 or more, in aggregate, in accounts outside of the US at any time during the tax year, must file an FBAR online or have someone file a FinCEN Form 114 as your behalf if you have a service doing it for you.