Monday, April 18 will be 2016 tax deadline for most individual taxpayers. When April 15 falls on a Saturday, Sunday, or legal holiday (which includes a legal holiday observed in the District of Columbia), a return is considered timely filed if filed on the next succeeding day that is not a Saturday, Sunday, or legal holiday. April 15, 2016, will fall on a Friday, but the Emancipation Day holiday will be observed in the District of Columbia on that day. As a result, the IRS announced that most taxpayers will have until the next business day, Monday, April 18, 2016, to file their Form 1040s. However, because of a special rule for Patriot’s Day observance on Monday, April 18, 2016, taxpayers in Maine and Massachusetts will have until Tuesday, April 19, 2016, to file their tax returns.