Get your taxes done using TurboTax

Yes you can still efile Online.  The Desktop program is much better.  It can do unlimited return and efile 5 for free.  You get one free state program download to prepare unlimited state returns.  You can see the actual forms and enter directly on them.  And other features and advantages over the online version.

TRANSFER
Transfer from Online into the Windows Desktop program.   Expand the 3rd blue link
https://ttlc.intuit.com/questions/1901506-transfer-last-year-s-return-into-turbotax-for-windows

One way is to start a 2018 Online return and transfer into that.  Then you can download the .tax2018 file from online and just OPEN it in the Desktop program.