ISSUE: 

• "Upload Error" when electronic filing a return in CCH Axcess Tax

• "The following error occurred while performing requested operation:

  Error occurred during I/O operation."

SOLUTION: Remove the PDFs from the return and re-attach. The problem is that Axcess Tax is not being given an opportunity to actually attach the file first and the calculation process is interfering with the file upload.

**see notes at the bottom for other ways to resolve this issue

• Check the PDF attachment section to make sure a PDF exists, the View Attachment button should be colored and selectable

• Remove the PDFs from the return
• Attach the PDF again, but wait until the window below shows and goes away

• Calculate the return again and export it to electronic filing

*Note*: If you continue to receive the error message after following the steps above, please try the following: 

• Reduce the file size
  • Open the file in Adobe > Select File > Reduce file size > wait for the new file to be created
  • Alternatively, print the color PDF to adobe again and change the color to B&W
• Save the PDF on your local machine from which the return is being exported (Desktop, Documents, Downloads) and attach it from there rather than a network location
• Minimize the length of the file name