As an American abroad, you can automatically get a two-month and six-month extension to file your U. S. taxes from abroad. For the calendar year 2021, the dates are as follows:
May 17, 2021 – Regular federal tax deadline
June 15, 2021 – US expat federal tax deadline
October 15, 2021 – Final federal tax return and FBAR deadline with an automatic six-month extension.
June 15, 2021 – The deadline to pay a tax due