( September 28, 2026, 7:43 AM EDT) -- NEW ORLEANS — The Internal Revenue Service asked the Fifth Circuit U.S. Court of Appeals to stay briefing in a tax firm’s Administrative Procedure Act (APA) challenge to the agency’s final microcaptive insurance disclosure rule pending resolution of a related appeal involving the same regulations, arguing that the earlier-filed appeal could narrow or moot issues in the present case and avoid duplicative briefing and argument....