You must buy, download and install on your computer the 2018 program to prepare, print and mail a 2018 tax return. Here is a link to buy it: https://turbotax.intuit.com/personal-taxes/past-years-products/
A 2018 tax return can no longer be efiled. You must print and mail it yourself. TurboTax does not print and mail it for you. A sheet of filing instructions will be printed along with your tax return which can be used to know what to include and where to mail it.
