Fix It or Nix It: Your Guide to QuickBooks Error 15270

The message Error 15270: The (payroll) update did not finish successfully appears when an error occurs. The update is missing a file. The inability to download one of the payroll update files required to update payroll in QuickBooks is a clear indication that there are problems with the program.
Failing to enter the security key or having an invalid EIN are two of the several potential reasons for QuickBooks error 15270. The causes aren't only one issue, though, as there are a number of other possible reasons. To better grasp the underlying causes of QuickBooks payroll update error 15270, let's examine those specifics.