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).
April 15 is an important deadline for late tax filers too. The IRS only hands out refunds for late taxes three years after the returnâs original due date. This means that the deadline to collect a 2011 refund is April 15, 2015. After this date, youâll no longer be able to claim your 2011 refund.