How do enter my activation code for the new Costco product I received to the existing account I created and did last year

You will always use the same account when using TurboTax Online. Please use this link to enter your 2023 return.

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 license code

Thank you for using TurboTax.