The following versions of Microsoft® Office are currently supported: Must be locally installed versions. 

• Microsoft® Office 2016 (as of the 2015.03050 release)
  • Microsoft® Office 2016 is compatible with CCH® ProSystem fx® Tax version 2015.03050 and later. The button to edit letters in Microsoft® Word will not be available in earlier versions.
• Microsoft® Office 2019 (as of the 2018.01000 release)
  • Microsoft® Office 2019 is compatible with CCH® ProSystem fx® Tax version 2018.01000 and later. The button to edit letters in Microsoft® Word will not be available in earlier versions.