Major Tax Due Dates in 2019
IRS E-file begins
W-2 due from employers
“Tax Day” Deadline day for filing federal and state (most states) income tax returns and extension requests. Additional days due to holidays.
FBAR reports due to US Treasury
“Tax Day” for US expats. Deadline for filing federal and state income tax returns (most states) and extension requests
Filing extended 2018 federal and state income returns. Note: you still need to file for an extension request by April 15, or June 17 for expats. Any expected tax liability still due by April 15 without interest and penalties add-on.
FBAR is DUE.
April 15, 2022
Last date to file a 2018 tax amendment is in 2022.
Deadline of 3 years from the original due date to claim any tax refund of any previous years.
See full schedule at this link here, especially for businesses.