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Using the Income Withholding for Support Form: Dos and Don’ts

Published: January 29, 2014

Employers receive Income Withholding for Support (IWO) forms from child support agencies, courts, attorneys and private entities. Sometimes the forms have been changed by the sender.  Since the IWO is a standard, OMB-approved federal form sent to employers to withhold child support, there are very few changes that are acceptable.  Keep in mind that employers may refuse to honor any IWO form that has been altered.

Below are a few tips about what may and may not be changed on the IWO form.

  • Font and pagination may be changed.
  • Standard form text may not be changed.  Additions to the standard text may not be made, and the information is to appear in the same order as on the OMB-approved form.
  • Supplemental and/or state-specific information, such as state code requirements, may be added.  This information may not be inserted on the form unless it fits into the lines available in the Liability, Anti-discrimination, or Additional Information lines on pages 2-3.  If it does not fit into the lines, you may add a supplemental page(s) that is clearly identified and referenced in the “Additional Information” section of the OMB-approved IWO (see #33 in the instructions).
  • Bar codes may be added in the blank box or margins for document management.
  • Courts may add the style of a case at the beginning of page 1 of the IWO.
Last Reviewed: August 18, 2016

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