Plus Deutsch is German for German, henceforth the explaination on why the Pennsylvania Dutch are called that when they are really German and not Dutch. The Dutch from the Netherlands also got their ethnic name derived from the German term Deutsch as well believe it or not. If you're Dutch, then you are from Denmark.
1 Deadline for filing a 2015 personal, partnership, or calendar year estates/trusts tax returns or extension.  The return or extension must be postmarked or transmitted for e-filing by Monday, April 18, 2016 (April 19 for Maine and Massachusetts residents).
Just like last year, the 2017 federal tax return deadline doesn't fall on the usual date of April 15. Federal tax payments and personal income tax filings for the 2016 tax year are due on April 18, 2017. Those who file in two U.S. states, Maine and Massachusetts, score an extra day -- their filings are due on April 19, 2017.