I'm not sure you can close your Turbo® account without closing all your Intuit accounts and deleting all your data (Turbotax, Mint, Turbo, etc.). I want to look into this further. However, you can turn off all Turbo-related emails. Log into Turbo or Turbotax, click "Intuit Account" at the bottom left, then click "Data and Privacy" then click "Notifications" to see what email notifications you are receiving and turn off any you don't want.
