Get your taxes done using TurboTax

"can I save the file from first and use in second? "

Yes, you can save the *.tax2019 data file you started and use it in any other edition of desktop TurboTax, so you won't have to start over.

 

Tell Costco you bought the wrong TurboTax version, and they may let you return it and buy the Deluxe with state.  If Costco won't refund your original purchase, then you can contact TurboTax and invoke the TurboTax "unconditional 60-day satisfaction guarantee" for a refund.  See the FAQ below which contains a link to a refund request form.

 

FAQ:  TurboTax Satisfaction Guarantee in desktop software

https://ttlc.intuit.com/community/charges-and-fees/help/our-turbotax-satisfaction-guaranteed-refund-...