You can use TurboTax to create, complete and file prior year tax returns, 2015 thru 2017, by purchasing, downloading and installing on a personal computer one of the desktop editions for each tax year needed from this website - https://turbotax.intuit.com/personal-taxes/past-years-products/
Prior year tax return can only be printed and mailed, they cannot be e-filed. When mailing multiple tax years use a separate envelope for each tax year.
TurboTax does not support tax years prior to 2015.
