itonewbie
Level 15

Yes, you can import TurboTax's 2018 file to proforma the client's 2019 return.  See these articles for how the conversion process works and what will convert for 1120.

https://proconnect.intuit.com/community/help-articles/help/proconnect-tax-online-conversion-informat...

https://http-download.intuit.com/http.intuit/CMO/proadvisor/ito/pdf/TurboTaxConvertedItems.pdf

---------------------------------------------------------------------------------
Still an AllStar