Hi there 

Having the same issue as you did. Will not accept my licence code and I purchased it from Costco also.  Did you figure it out plz?

My email is [email address removed] 

Thank you 

Hi, I have the same problem whit invalid activation key.

Do you find how fix this problem?

Alain

Are you getting an error code and what is it? 

Whether you are using our TurboTax Online or CD/Download version, please follow the link below relating to your version of choice to receive the guidance you need.

In the online edition of TurboTax, how do I use a prepayment code?

Understanding your TurboTax product licence code

Thank you for using TurboTax.