davetm
Returning Member

Illinois -Turbotax entering late penalty on estimated payments.

Problem seems to be that I received an unforeseen substantial lump sum of income in December.  The first 3 estimated payments were equal like the state likes.  So my 4th payment was a lot higher than the first 3.  And Turbotax takes my total tax divided by four and assesses a penalty on the first 3 payments.  I can't find a way to accommodate this.  Does anyone have an idea how to handle this?