I am trying to obtain the 2020 Deluxe Variation of TurboTax and I should enter my License Code. How do I do this?three. Costco TurboTax Deal – If you are a member at Costco, you can save dollars this calendar year when you buy TurboTax in the store. Incorporate your buy with the newest marketing deal from Costco For brand new members (a $ reward)