When filing your tax returns today (02/13/2-23), you have to make sure that you have the newest TurboTax update installed; otherwise, the transmission to TurboTax will fail. To install the latest update under macOS, open TurboTax, click on the TurboTax menu item on the macOS menu bar and then click on Check for Updates...
For me the update was not downloaded by simple closing and reopening TurboTax.
