What exactly did you purchase from Costco? Costco (and other retailers) can sell TurboTax Deluxe with only federal software or with federal + state included. I see both on the Costco site. If you bought the cheaper "federal" only, then in order to get state software you will need to pay $40 for a state download, and then you can use the $10 off on the $25 state e-file fee. It is a better value to buy the federal + state if you know you will be preparing a state return.