On Monday, January 29, 2018 the 2018 Federal Tax Filing Season begins. Individual tax returns are due Tuesday, April 17, 2018.
Your tax professional or tax filing service whether electronic or not, may accept your return prior to Jan 29th, however, those returns are not submitted to the IRS until Jan. 29th.
If you are expecting a refund due to the Earned Income Tax Credit (EITC) or the Additional Tax Credit (ACTC), your refund will be on hold until approximately Feb 27, 2018.
Taxpayers changing tax software, who intend on filing electronically, will need their adjusted gross income from their 2015 return. The IRS is no longer utilizing the Electronic Filing Pin as an option.
Additional Info: www.irs.gov