My wife filed our taxes via her Turbo Tax account last year, but I would like to file them on my account this year. Can I import our prior year tax info from her account?

You can use the PDF of last year's return to import into your account. When you start TurboTax, select Other as the way you prepared your return last year. 

Thank you. If I've already passed that prompt, is there a way to go back and import my PDF? Not seeing that option anywhere.

In Tax Tools, Tools (on the far left) you should see an option to Transfer last year's TurboTax return from your computer

Thanks again. That worked, I downloaded the .tax2017 file, but I'm having problems importing it. I keep getting error message: The selected file is NOT a previous year tax file or it is corrupted. Choose a different file and try again. I've deleted and redownloaded and keep getting this message. Is there any way to dig into this issue further?

I think you can not transfer a .tax2017 File you downloaded from Online back to Online.  Maybe from a pdf.  Why don't you just use her account?  Or switch to the Desktop program.  You can transfer it into Desktop.  Plus Desktop has many other features and advantages over Online.
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