when is business tax season
IRS Announces Start Date To 2014 Business Tax Season. The Internal Revenue Service is on a roll! After announcing that the 2014 tax season would open on January 31, 2014, for individual taxpayers, the IRS has now announced that they will begin accepting 2013 business tax returns on Monday, January 13, 2014. This start date applies to both electronically-filed and paper-filed returns.