I got rejection code 1/27/2020 that says tax year 2018 1040 transmissions are not available- tax year 2018 1040 will not be eligible for efiling  until mid to late February.  The IRS has not updated their systems for TY18 due to exentenders and the focus on TY19.  Prosereis will not be acepting 2018 1040 returns until further notice. ......