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Revised NMSN Parts A and B — Expire December 31, 2028 (New)

ACF-OCSE-AT-26-02
January 26, 2026
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Notifies that states must generate the revised NMSN by Jan. 1, 2027

FY 2024 New Hire Reporting Infographic

November 24, 2025
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Highlights new hire reporting statistics, legal requirements, and resource links. 

FY24 Child Support and Employers Infographic

August 1, 2025
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Highlights annual child support collections, electronic processing, and employer new hire reporting

Release 25-02 Major: Manifest

May 7, 2025
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Describes the changes to SSR, Portal, Lump Sum Reporting, and e-NSMN in Release 25-02

e-IWO Record Layouts

Version 4.0
March 20, 2024
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Provides the universal record layouts for the e-IWO system

Employer Responsibilities When Working With Tribal Child Support Programs

Outreach Flyer on Income Withholding and Tribes
November 28, 2023
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A flyer that explains how employers must honor IWOs from tribes

USPS Contact Information for Child Support Agencies - Updated

IM-23-03
October 13, 2023
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Provides US Postal Service updated contact information for verification of employment and medical support

Revised IWO Form and Instructions — Expire Aug. 31, 2026

AT-23-13
October 5, 2023
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Announces revised IWO form and instructions with expiration date of Aug. 31, 2026

Income Withholding for Support (IWO) Form, Instructions & Sample

OMB 0970-0154
October 5, 2023
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Used for income withholding in tribal, intrastate, and interstate cases

e-NMSN - Answers to Employers' Questions

June 2, 2023
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Answers employers' frequently asked questions about using electronic National Medical Support Notice (e-NMSN)