Rule 507.1.Plenary Power
Last verified June 28, 2026
Full Text of Rule 507.1
Plain-English Summary
Rule 507.1 fixes how long the justice court can change its judgment. The court loses plenary power to modify or vacate a judgment when an appeal is perfected, or — if no appeal is perfected — once the time for the court to act on a motion to reinstate, set aside, or for new trial has expired. After that, the judgment stands.
Frequently Asked Questions
How long can a justice court change its judgment in Texas?
Until an appeal is perfected or, if none is, until the time to act on post-trial motions runs out (Rule 507.1).
How many days after a justice court judgment does the court keep power to change it?
21 days after the later of the date the judgment is signed or the date a motion to set aside, reinstate, or for new trial is denied, if no appeal is perfected (Rule 507.1).
Does perfecting an appeal end the justice court's power over the judgment right away?
Yes. Rule 507.1 says the court loses plenary power to modify or vacate the judgment as soon as an appeal is perfected.