Child Support Fax Service — Send Enforcement Forms Online
Fax child support forms, Income Withholding Orders, UIFSA interstate documents, and modification petitions to state agencies — no fax machine, no subscription, pay only on successful delivery.
Why State Agencies Still Use Fax for Child Support
Child support enforcement agencies across the country rely on fax for secure, time-sensitive document exchange. The federal Office of Child Support Enforcement (OCSE) explicitly encourages states to communicate by fax to expedite interstate cases under UIFSA.
Common child support documents people fax:
- Income Withholding for Support (IWO) — OMB 0970-0154
- UIFSA Transmittal #1 — Initial interstate request
- UIFSA Transmittal #2 — Subsequent actions
- UIFSA Transmittal #3 — Request for assistance/discovery
- Child support modification petitions
- Financial affidavits and income declarations
- Paternity establishment forms
- Uniform Support Petition
Important: Always verify the correct fax number for your specific state child support office before sending. Each state and regional office may have different fax numbers.
How to Fax Child Support Documents with OneFaxNow
Prepare your child support documents
- - Complete the required forms (IWO, UIFSA transmittals, petitions)
- - Save as PDF or upload as DOCX, TXT, JPG, PNG, or TIF
- - Ensure all signatures, dates, and case numbers are legible
Upload your documents
- - Go to Pay-Per-Fax and upload your form(s)
- - Multiple files merge into a single fax
- - Limits: up to 20 MB per file and 50 pages total
Enter the state agency fax number
Enter the fax number from your state child support enforcement office. Look for the number on your agency's website, court order, or correspondence. We format the number automatically.
Pay only if delivery succeeds
$3.50 for 1-10 pages or $5.00 for 11-50 pages.
We authorize at checkout and capture only on successful delivery. If all retries fail, you pay $0.
Get delivery confirmation
Track your fax in real time on your status page. Receive email confirmation when your documents are delivered — proof of timely filing for deadline-sensitive submissions.
Why OneFaxNow for Child Support Documents?
No account or subscription
Send your child support forms without signing up or committing to a monthly plan. Start in seconds.
Pay only on successful delivery
Your card is authorized at checkout. If delivery fails after retries, you are never charged.
Meet tight deadlines
Child support responses often have strict deadlines. Fax instantly from any device and get delivery confirmation as proof of timely filing.
Automatic retries
State agency fax lines can be busy. OneFaxNow retries up to 3 times automatically. Track each attempt on your status page.
Simple Pricing for Child Support Faxes
Most child support filings are under 10 pages. Our Lite tier covers the majority of submissions.
Lite Child Support Fax
1-10 pages
Ideal for IWO forms, single petitions, and short filings
Standard Child Support Fax
11-50 pages
For larger packets with financial affidavits and supporting documents
- U.S. & Canada fax numbers only
- Cover page counts toward total page count
- Pay only on successful delivery
Child Support Fax Questions
Can I fax child support documents to my state agency?
Yes. Most state child support enforcement agencies accept documents by fax. Check your state agency's website or your court documents for the correct fax number for your specific office or division.
What child support forms can I fax?
Common forms include Income Withholding Orders (IWO), UIFSA interstate transmittal forms, modification petitions, financial affidavits, paternity establishment documents, and the Uniform Support Petition.
How much does it cost to fax child support forms?
OneFaxNow charges $3.50 for 1-10 pages and $5.00 for 11-50 pages. Most child support filings are under 10 pages. You pay only on successful delivery.
Do I need HIPAA mode for child support documents?
Typically no. Child support forms contain financial and legal information, not Protected Health Information (PHI). Standard fax mode is sufficient for most child support submissions.
What if the state agency fax line is busy?
State agency fax lines can be very busy. OneFaxNow automatically retries up to 3 times if the line is busy or temporarily unavailable. If all attempts fail, you pay $0 and can try again later.
Can I get proof that my fax was delivered?
Yes. OneFaxNow provides real-time tracking on your Fax Status page and sends an email confirmation when your fax is successfully delivered. This serves as proof of timely filing for deadline-sensitive child support submissions.
Ready to Fax Your Child Support Documents?
Upload your forms, enter the state agency fax number, and send — no fax machine, no subscription, no account required. Get delivery confirmation for your records.