§ 31.004.Effect of Adjudication in Lower Trial Court

A limit on preclusion, and it reflects the conditions under which small-stakes cases are tried.

A judgment or a determination of fact or law in a proceeding in a lower trial court is not res judicata and is not a basis for estoppel by judgment in a proceeding in a district court — except that a judgment rendered in a lower trial court is binding on the parties thereto as to recovery or denial of recovery.

The exception is narrower than it first appears. What binds is the result — that the claimant recovered or did not. The findings of fact and conclusions of law along the way do not carry over.

So a party cannot take a factual finding from a justice court into a district court case and treat the question as settled.

The reason lies in how those cases are tried. Proceedings in lower trial courts are quick, frequently conducted without lawyers, often without a record, and with amounts at stake that do not justify litigating an issue thoroughly.

Giving such findings preclusive effect in a district court would misplace the incentives, requiring a party to litigate a small case as though a large one turned on it.

"Lower trial court" is defined precisely: a small claims court, a justice of the peace court, a county court, or a statutory county court.

Subsection (b) carves out the courts that are not deciding small cases at all. The section does not apply to a judgment in probate, guardianship, mental health, or other matter in which a lower trial court has exclusive subject matter jurisdiction on a basis other than the amount in controversy.

That distinction is the sound one. A county court sitting in probate is the court for that subject, deciding matters fully; its findings are entitled to ordinary preclusive effect.