Interstate Child Support: UIFSA Explained
Updated March 2024 · PlainChildSupport Editorial
When parents live in different states, child support becomes more complicated. Which state's laws apply? Which court has the power to change the order? The Uniform Interstate Family Support Act (UIFSA), adopted by all 50 states, provides the answers.
UIFSA Action Pathways
UIFSA streamlines four common interstate scenarios, each with a distinct procedural route:
| Scenario | UIFSA Mechanism | Court Involvement |
|---|---|---|
| Establish new order, parents in different states | Long-arm jurisdiction in obligee's state | One-state proceeding |
| Enforce existing order, obligor in new state | Direct income withholding to employer | No court, administrative |
| Register foreign order for enforcement | Registration of Foreign Support Order | Confirmation via mail or hearing |
| Modify existing order, both parties moved | Petition in new CEJ state | Two-state hearings |
| International, Hague Convention country | Central authority case transfer | Treaty-routed mutual enforcement |
Worked Example: Direct Income Withholding Across States
Custodial parent lives in Ohio with a $850/month child support order issued by an Ohio court. Non-custodial parent moves to Florida and starts a new job at $4,800/month gross. Under UIFSA's direct income withholding provision, Ohio's IV-D agency mails the standardized OMB-Form-0970-0154 IWO directly to the Florida employer. The employer must comply with Florida's Consumer Credit Protection Act ceiling (typically 50-65% of disposable earnings), withholding the $850/month and remitting to Ohio's State Disbursement Unit, no Florida court action required, no registration step needed.
"Only the state with continuing, exclusive jurisdiction may modify a child support order. All other states must enforce the existing order as written." - UIFSA §205, codified by all 50 states + DC
The One-Order Principle
UIFSA's core rule: only one state can have "continuing, exclusive jurisdiction" over a child support order at any given time. This prevents both parents from racing to different state courts to get favorable orders.
Which State Has Jurisdiction?
Generally, the state that issued the original child support order retains jurisdiction as long as:
- The child still lives in that state, OR
- One of the parents still lives in that state
When both parents and the child have all moved out of the original state, jurisdiction can transfer. Either parent may then register the order in the state where the other parent (or the child) lives and seek modification there.
Registering an Out-of-State Order
If you need to enforce a child support order across state lines, you can register it in the new state. Registration doesn't change the order, it just allows the new state to enforce it. To modify the order, you'd typically need to establish jurisdiction in the new state first.
Direct Income Withholding
Under UIFSA, a child support agency can send a direct income withholding order to an employer in another state without going through that state's courts. This is the primary enforcement tool for interstate cases.
Working with Your State's Child Support Agency
If you have a Title IV-D case, your state's child support enforcement agency can help with interstate cases at no cost, including:
- Locating a non-custodial parent who has moved out of state
- Establishing a new support order across state lines
- Enforcing an existing order when the obligor lives in a different state
- Registering foreign orders for enforcement
If You're Moving to a Different State
If you're the custodial parent and plan to move, notify the other parent and the court. Your existing order remains valid and enforceable in the new state. If you later want to modify the order, UIFSA rules will determine which state has jurisdiction to do so, typically where the other parent lives if you've both left the original state.