Calendar year 2017 tax returns (Tennessee franchise and excise tax returns, Hall income tax returns and business tax returns with a tax period ending on December 31, 2017), will be considered timely if they are filed on or before April 17, 2018.
Typically, calendar year tax returns are due on April 15. However, April 15 falls on a Sunday in 2018. Additionally, Emancipation Day will be observed on April 16, 2018, in Washington, D.C., making it a legal IRS holiday. Tennessee law says whenever the due date for filing the return occurs on a weekend or a legal holiday for IRS purposes, the Commissioner of Revenue may extend the due date to the next workday.
Please see important notice #18-01 for more information.