TSO will be rolling out Practice Lab 2021 on Tuesday, November 9th. Once Practice Lab 2021 is pushed, you will have access to TaxSlayer 2021 and TaxSlayer 2020 with your Practice Lab logins. This will allow you to create new TY2021 returns and continue to create new TY2020 returns. You will no longer have access to your TY2019 returns when you are logging in via the Practice Lab.

Full TSO post is here.