I'm looking for my 2015 state tax returns. I did file with Turbo Tax, but it says that I did not.

[Denise_C · Accepted solution]

Sounds like you may have multiple accounts. Read below on how to determine if so, https://ttlc.intuit.com/replies/3302270. 

[alecnewton]

Don’t take my word for it but I think it depends if you used TurboTax online or purchased a CD for the tax year in question. if you purchased a CD from a store the information might be stored on your computer you did your taxes on. If you then used TurboTax online the information is stored on TurboTax servers. Therefore, when you search for the 2015 taxes online they are not there. If you are using the same computer now as you did when you did your 2015 taxes you can search for them on your computer by pressing the start button and putting a keyword such as "Tax" in the search field.