If you're using TurboTax Online Self-Employed you may see an error stating the home office start date must be on or after the business start date.
Double-check the business start date and the home office start date are correct. If the error persists, try the workaround and sign up for updates.
This error was resolved in a recent TurboTax update on 8/28/19
We're investigating this issue. Click here to sign up for notifications regarding resolution of this issue.