Turbo Tax is giving me an error message trying to e-file for South Carolina.
It is rejecting because on the form SC2210 data source Tax Pymnt Wks, I have entered negative additional payments under line 5 to reflect the uneven SC employer withholding contributions. This is the only way I have been able to get TurboTax to correctly calculate the SC under withholding penalty. In early 2025 I had higher SC withholding amounts due to my uneven earnings, however, splitting line 9 is not allowed anywhere that I can see. TurboTax seems to assume that employer withholding is equal during each and every period, which does not allow for accurate calculation of the SC penalty amount.
Suggest on the SC forms, there should be a similar entry point for tax withheld like there is for the 2210 federal Part II, Line D - tax withheld worksheet.
Is there another work around?