Oklahoma Child Support Office
Updated August 2026
Oklahoma's Office of Child Support Services (OCSS), part of Oklahoma Human Services (OKDHS), runs child support statewide with call centers in Oklahoma City and Tulsa.
Phone
1-800-522-2922Official Website
Official Site ↗Mailing Address
Oklahoma Human Services – Office of Child Support Services
Oklahoma Child Support Services, Capitol Station Box 248822
Oklahoma City, OK 73124-8822
Case Account
Manage Your Case ↗Payments
Make a Payment ↗About the Oklahoma Human Services – Office of Child Support Services
OCSS is Oklahoma's IV-D agency, run statewide through OKDHS rather than by county, with separate call center numbers for Oklahoma City and Tulsa.
The office locates noncustodial parents, establishes paternity, sets support orders, and collects and enforces payments once a case is active, with case tools available through the WebPIN online system.
Oklahoma uses the Income Shares model to calculate support. See how this compares to other states →
Oklahoma's default child support termination age is 18. See the full rules, including high school and disability extensions →
Circumstances change — see how to request a modification in Oklahoma →
How to Apply for Child Support in Oklahoma
A parent or caretaker of a child can apply for Oklahoma child support services through the WebPIN portal or by contacting OCSS. Families already receiving TANF or Medicaid in Oklahoma are typically referred for services automatically.
The application requires identifying information for both parents and the child, along with any existing custody or support paperwork. OCSS then works to establish paternity if needed and get a support order in place.
How to Collect Child Support Payments in Oklahoma
Oklahoma collects most support through income withholding once an order is active, disbursed to the receiving parent by direct deposit or debit card.
Payments can also be made through Oklahoma's Smart e-Pay portal, and applications or payments mail to a separate Centralized Support Registry P.O. Box from the main office.
Missed Payments & Enforcement
Oklahoma's enforcement tools, described on its main services page, include tax refund interception, license suspension, and credit bureau reporting for parents who fall behind on payments.
As in every state, federal law allows a passport to be denied or revoked once past-due support exceeds $2,500.
Frequently Asked Questions
How do I apply for Oklahoma child support services? +
Through the WebPIN online portal or by contacting OCSS directly. Families already receiving TANF or Medicaid in Oklahoma are typically referred automatically.
How do I make an Oklahoma child support payment? +
Through the Smart e-Pay portal online. Applications and some payments mail to a separate Centralized Support Registry P.O. Box from the main office address.
What happens if the other parent stops paying in Oklahoma? +
OCSS can intercept tax refunds, suspend licenses, and report arrears to credit bureaus. Once past-due support exceeds $2,500, a passport can also be denied under federal law.
Helpful Resources
Calculator & Guidelines
See how Oklahoma calculates the current amount, and how it compares to other states.
Learn more →When Support Ends
Oklahoma's default termination age, plus how high school, disability, or college can extend it.
Learn more →Modify an Order
What counts as a substantial change and how to request a modification in Oklahoma.
Learn more →Interstate Cases
How UIFSA determines jurisdiction when the other parent lives outside Oklahoma.
Learn more →This page is your Oklahoma starting point
Contact information above covers what the Oklahoma Human Services – Office of Child Support Services handles directly, but the guideline model, termination age, and modification rules that decide your amount live on the dedicated pages linked here. And if the other parent lives outside Oklahoma, interstate rules — not Oklahoma's own procedures — determine which state has authority.
Nearby State Child Support Offices
Rules, portals, and enforcement tools change at the state line. If a case involves parents in more than one state, start with each state's own office — interstate cases are handled through direct cooperation between the agencies involved.