Automatic two month Tax filing extension for US citizens living overseas

If you are a U.S. citizen or resident alien residing overseas, or are in the military on duty outside the U.S., on the regular due date of your return, you are allowed an automatic 2-month extension to file your return and pay any amount due without requesting an extension.
There is additional useful information on the above linked text.
If you had $10,000 or more in a foreign bank account at any time during 2018 You need to file a Foreign Bank Account Report (FBAR).  Deadline for filing  FBAR is April 15. FBAR can be filed online สกลนคร Sakon Nakhon