It's April 15 Tax Day in America. A day individual income tax returns are due to the federal government. Since 1955 tax day has traditionally fallen on April 15, however in 2016 Tax Day will be April 18. And if you file a tax return from outside the United States you have until June 15 due to the two month automatic extension granted by IRS Publication 54. Yes, you can file for an extension if you need a little more time to do your taxes.