The Secretary of the Treasury just tweeted that the tax deadline is July 15.

10:15 a.m.: Tax Day pushed back to July 15
Tax Day will be pushed back from April 15 to July 15, giving more Americans time to file and make payments without interest or penalties, Treasury Secretary Steven Mnuchin tweeted.

At @realDonaldTrump’s direction, we are moving Tax Day from April 15 to July 15. All taxpayers and businesses will have this additional time to file and make payments without interest or penalties.
— Steven Mnuchin (@stevenmnuchin1) March 20, 2020