If you completed your 2018 return using the TurboTax CD/Download software, but can no longer access the computer where you downloaded your return, your best bet is to obtain a copy of your return from the IRS. Learn how to order a free copy of your transcript or a paid copy of your full return here.
If you completed your 2018 tax return in TurboTax Online, follow the steps listed in the following FAQ to download and/or print a copy of your 2018 return: How do I get a copy of the 2018 return I filed in TurboTax Online?