I bought my Turbo Tax CD at Costco and need to know how to find my confirmation number so I can upgrade my product.

[SweetieJean]

Look for a slip inside the box.

[MrsBH]

What if there is no slip inside the box? I purchased the software some time ago.

[VolvoGirl]

Are you on Windows or Mac?  Have you installed it yet?  

You can use any Desktop version, they all have the same forms.  You only get more help in the higher versions.

How to upgrade the Windows Desktop program

https://ttlc.intuit.com/community/upgrading/help/how-do-i-upgrade-my-turbotax-for-windows-software/0...

[VolvoGirl]

What problem are you having?   The Desktop CD/Download program does not give you access to the Online version, either for the current year or to open prior years.