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Withholding Tax Forms and Information
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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 effective April 1, 2006.
IA W4 - (pdf) 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 W4 en Espanol (pdf)
IA W4-P - (pdf) - Withholding Certificate for Pension or Annuity (44-020)
Statement of Nonresidence in Iowa Illinois residents only (pdf) (44-016)
Nonresident Request for Release from Withholding (pdf) (44-017)
Iowa Income of Nonresidents Subject to Withholding of agricultural commodities/products with an Iowa source (pdf) (41-136)
Request for Copy of Iowa Tax Return - (pdf) - (3 yrs old or less) For copies of federal returns, contact the IRS at 1-800-829-1040
Return (pdf)
How to obtain a refund of Iowa withholding tax
Verified Summary of Payments (VSP):
File through eFile & Pay.
VSP (pdf)
Register online for an IRS Employer Identification Number
E-file W-2s with the Social Security Administration
To obtain a copy of your W-2, use Federal form 4506.
The Iowa Department of Revenue cannot provide this service.