Your license code is a 16-character combination of letters and numbers (XXXX-XXXX-XXXX-XXXX) that verifies the software and allows you to finish installing and begin using TurboTax.
Enter your 16-character TurboTax license code (letters and numbers) on the activation screen during the software installation process. After running the setup file (either from CD or download), a prompt will appear asking for the license code. Type it into the designated boxes.