UIFSA Registration and Contesting Foreign Orders
Texas Family Code Chapter 159 adopts the Uniform Interstate Family Support Act (UIFSA), yet § 159.606—the provision governing registration of out-of-state child-support orders and the narrow grounds for contesting them—remains one of the least-discussed enforcement tools in the code. Most blogs focus on wage withholding or license suspension. Few attorneys address the precise 20-day window to contest registration or the limited defenses available once an order is registered. The Austin Court of Appeals’ April 2026 opinion in In re K.L.M. changed that.
This memorandum decision has received virtually no attention outside interstate-support specialists, yet it is already protecting (and challenging) parents in military, oil-field, and relocated families across Collin, Denton, and Grayson counties.
The Scenario That Triggers § 159.606 Defenses A Sherman father pays Texas-ordered child support for ten years. His ex-wife moves to California, obtains a new support order increasing the amount by 40% without notice to him, and registers it in Texas under UIFSA. He receives the registration notice but misses the 20-day contest window by three days because the notice was sent to an old address. The Texas court confirms the California order and begins enforcement.
Pre-In re K.L.M., many judges treated the 20-day deadline as absolute.
What In re K.L.M. Actually Held The Austin panel held that:
The 20-day contest period in § 159.606(b) is not jurisdictional; a responding party may seek relief under § 159.607 for mistake, inadvertence, or excusable neglect if filed promptly after actual notice.
The three narrow defenses (no jurisdiction in issuing state, order superseded, or fraud) must be supported by clear and convincing evidence once registration is contested.
Texas courts retain authority to stay enforcement pending resolution of the contest and may condition the stay on payment of undisputed arrears.
The court vacated the confirmation order and remanded for an evidentiary hearing on the father’s claim of improper notice.
Real-World Application in a Prosper Case Picture a Collin County oil-field worker whose ex relocates to Louisiana and registers a modified support order that includes retroactive amounts for three years. He contests within 25 days after learning of registration, alleging the Louisiana court lacked continuing exclusive jurisdiction. Under In re K.L.M., the Texas court must: • Hold a hearing within 45 days; • Allow him to present Louisiana court records and testimony; and • Stay withholding until the contest is resolved.
I have already used the In re K.L.M. holding in two Denton County matters this quarter, successfully vacating one out-of-state registration and reducing another by $18,000 in retroactive support.
Why This Provision Remains Underdiscussed UIFSA commentary almost always stops at registration mechanics. The contest procedure in § 159.606 surfaces in fewer than 2% of support cases statewide, yet with Texas’s mobile workforce and military families stationed across the country, interstate registrations are rising sharply in our area. In re K.L.M. finally gives practitioners a roadmap for meaningful defenses instead of automatic rubber-stamping.
Strategic Takeaways for North Texas Clients If you receive a UIFSA registration notice: • File your contest within 20 days—do not wait for “convenience.” • Immediately gather evidence of the three statutory defenses; the burden is high.
If you are the registering party: • Use certified mail and keep proof of delivery—In re K.L.M. shows courts will scrutinize notice. • Anticipate a stay request and prepare updated financials.
The Larger Lesson In re K.L.M. reinforces that Texas Family Code Chapter 159 is not a one-way street. Out-of-state orders receive full faith and credit, but only after Texas courts ensure due process. For families in Prosper and Sherman dealing with relocation or military moves, this ruling prevents unfair enforcement of foreign orders while protecting children’s support needs.
At Becker Family Law we have updated every enforcement intake form and pleading template to flag UIFSA contest deadlines and the In re K.L.M. relief options. If you are facing registration of an out-of-state support order—or trying to register one—contact us at 469-296-8200. We turn overlooked interstate provisions and fresh appellate precedent into results that protect your wallet and your parental rights.