If you filed previously with Turbo Tax, you'll be able to locate your prior year tax with the following steps:
Making
sure you log in with the same TurboTax account information you used last year.
If
you're not sure what email/user ID you used, run this recovery tool https://myturbotax.intuit.com/account-recovery/ on any email addresses you may have used.
Once
you’re in your account follow the instructions below. https://ttlc.intuit.com/replies/5574744
You also can obtain a copy of your 2016 taxes through the IRS.gov site. Here's the link:
https://www.irs.gov/newsroom/how-to-get-a-copy-of-your-prior-years-tax-information