So far as I know, the deadline for filing Federal Tax Returns is midnight April 17 this year. As you know, it’s usually April 15, but b/c of the 15th being on Sunday, the deadline was extended. So anyone who hasn’t filed was on borrowed time already.
Of course, there’s filing an extention, but what’s the point, since you have to send in the money with it anyway…they don’t extend the deadline for the money…not ever!!