<prompt> Human: See .A weird quirk in the calendar this year means that tax returns are not due until Monday, April 18th. Emancipation day is celebrated in Washington D.C. on Saturday; for legal purposes this holiday is moved to Friday today. The tax deadline cant fall on a weekend or legal holiday, meaning that your tax return isnt due until Monday.If you need more time to file your return, you can request an automatic 6 month extension by filing form 4868 This will extend the time you have to file, but not the time to pay your return or make 2015 IRA contributions. So, if you think you will owe money, send a payment in along with the extension.Finally, if you are one of the two states Maine or Massachusets that celebrate Patriots Day on Monday, your deadline is actually Tuesday the 19th.EDITS: 1 - See the post below from uVerySeriousMan that correctly points out that your state tax return may still be due if you live in a state imposing an income tax. This may also apply to localcity returns as well yes, there are a few of these out there; thanks uwmlloydfloyd for the additional advice. 2 - uI_RAPE_BANDWIDTH also points out that this only applies to the U.S. Sorry all you international folks; showing my U.S. is the world bias today : 3 - On a personal note, wow this thread is starting to blow up! It will be half my total comment karma soon. Thanks for the upvotes all; I know this is common sense for many people but hope it helps at least a few.  <response>: yesss! Three extra days of interest on the 42 I owe the feds! sweet. 