@nw24 wrote:
need to view 2018 return
Sorry, but there's not enough information. The title of this thread is about the *.tax2018 data file and opening it with desktop software. Is that your issue, or something else? Or was your return prepared in Online TurboTax? Please explain in full how your 2018 return was prepared and what is preventing you from viewing it. Or are you having trouble finding it?
