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Iowa Withholding Tax Guide: (pdf) effective April 1, 2006.
This guide includes computer variables and examples.
Excel file of all tables effective April 1, 2006.
PDFs of tables effective April 1, 2006.
Many of the Department's online forms are fillable. Adobe Reader Version 11 includes a new feature which allows the form to be saved after it is filled out. Download Adobe Reader for free at this link.
IA W-4 Employee's Withholding Certificate and Centralized Employee Registry
Complete the Centralized Employee Registry (top portion of the Iowa W-4) online with the Department of Human Services. Make child support payments on behalf of your employees, report newly-hired or rehired employees or contractors, and report employee terminations or absences.
IA W-4P - Withholding Certificate for Pension or Annuity (44-020)
Statement of Nonresidence in Iowa Illinois residents only (44-016)
Iowa Income of Nonresidents Subject to Withholding of agricultural commodities/products with an Iowa source (41-136)
Request for Copy of Iowa Tax Return - (3 yrs old or less)
For copies of federal returns, contact the IRS at 1-800-829-1040
Withholding Payment Voucher (44-105)
Return for quarters beginning October 1, 2009, and later
Return for quarters prior to and ending September 30, 2009
Verified Summary of Payments Report (VSP):
File through eFile & Pay.