Tax year 2014 and 2015 could only have been printed and mailed using the TurboTax desktop editions. The 2016 tax return could have been e-filed or printed and mailed using either the online or desktop editions.
You could not file a 2014 or 2015 tax return using the online editions. You also could not combine 2014, 2015 and 2016 on one tax return.
If you used the desktop CD/Download editions installed on your computer, the only copy of your tax data file and any PDF's will be on the computer where the return was created. TurboTax does not store online any returns completed using the desktop editions.
