Updated Tables (effective January 1, 2020) **For use starting January 1, 2020** Tax Table Instructions Withholding Formula and Instructions Excel: All Tables PDFs: Weekly Bi-weekly Monthly Semi-monthly Annual View 2019 Withholding Tax Tables Electronic Reporting of Wage Statements and Information Returns Application For Extension of Time to File Iowa W-2 Wage Statements Iowa Withholding Forms Withholding Due Dates Employers – How to Obtain a Refund of Iowa Withholding Tax Common Questions Calculate Your Withholding Print
