Get your taxes done using TurboTax

Are you wanting to upgrade to PLUS?  What are you trying to accomplish by upgrading?  Are you trying to unlock a prior-year return?   If so, please answer these questions:

1) Have you already filed a 2017 TurboTax return, or is it still in preparation?   And is it in Free Edition?
2) Have you located the prior-year return, and is it in the SAME account as what you are using for 2017?  When you try to download/print/view the prior return, does it tell you that you need to pay?

We can tell you how to upgrade and pay when you answer those questions.

Be aware there's a free option if a tax return transcript would suit your purpose.  You may be able to immediately download a 2016 return transcript at this IRS website at the link below.  If you don't qualify to open a free IRS account there, you can order one to come by postal mail, which takes 5-10 calendar days.
<a rel="nofollow" target="_blank" href="http://www.irs.gov/Individuals/Get-Transcript">http://www.irs.gov/Individuals/Get-Transcript</a>