This year Washington, D.C. will be observing the legal holiday of Emancipation Day, which celebrates the passing of the Compensated Emancipation Act, on Friday, April 15. This extends the deadline for filing taxes into the next week, until Monday, April 18th. States in New England that celebrate Patriot’s Day on April 18th, like Massachusetts and Maine, get to have their filing deadline extended even later, until April 19th.

J. Scott Applewhite/AP/File
The Capitol is seen in Washington (Monday, July 8, 2013).