Others have posted solutions to the Dividend Income Worksheet error. I tried all of the suggested fixes, including deleting and restarting my Iowa tax return. When these did not work, I started making changes to the Interest Income Worksheets. Still no help. Finally, I shortened the name on a Schedule K-1, and that fixed the problem. So, if you cannot clear this error on an Iowa tax return, look beyond dividend income worksheets. I am not at all thrilled with Intuit right now.