Typically, April 15 is the annual deadline for having your income tax completed and filed. However, that date isn't set in stone, so that it can change from year to year.
“Under a special rule, whenever a tax deadline falls on a Saturday, Sunday or a legal holiday, it’s moved to the next business day,” explains William Perez, a San Francisco-based tax professional. “That's April 18 in 2017. You have until October 16, 2017 if you file a request for an extension on or before that date.”
That extension does give you more time to file your return. However, it does not give you more time to pay off any taxes you might owe. That April 18 date still stands as the day, you must send any owed taxes. Otherwise, you could face penalties.
Most large military…