It's not clear exactly which years you need. TurboTax is only available for 2015 and later. You cannot use TurboTax Online to file for past years. TurboTax Online is only for the current tax year, which is now 2018. To file for earlier years you have to use the CD or download TurboTax software for the years that you need. You can purchase downloads at the following link. You have to buy each year separately. There is no free filing for past years.
http://turbotax.intuit.com/personal-taxes/past-years-products.jsp
You might get a better price from a reputable online seller that still has TurboTax in stock for the years that you need. If you see someone selling TurboTax for 2014 or earlier, don't buy it. It will not work correctly.
Tax returns for past years cannot be e-filed. You will have to print your past-year tax returns, sign them, and file them by mail.
