I signin. Where do I enter my license code to download and install?
If you bought the desktop program, install the disc and enter it there.
Below is a link with more information:
TurboTax Activation
Hope one of these help.
How to install 2019 if you don't have a CD drive
https://ttlc.intuit.com/community/installing/help/i-bought-the-cd-but-my-computer-doesn-t-have-a-cd-drive/01/26450
How to download 2019
https://ttlc.intuit.com/community/installing/help/how-do-i-download-the-software-i-purchased-at-turbotax-com/00/26075
How to install 2019 on Windows
https://ttlc.intuit.com/community/refund-status/help/how-do-i-install-the-turbotax-software-for-windows/01/25934
How to install 2019 on Mac
https://ttlc.intuit.com/community/installing/help/how-do-i-install-the-turbotax-software-for-mac/00/26067