Requires that key Indian programs (Bureau of Indian Affairs, Bureau of Indian Education, and Indian Health Service) be funded with advance appropriations planned one year ahead starting in fiscal year 2026, and requires budget documents to include next‑year estimates. It also mandates annual reports (developed in consultation with Tribes) on whether requested resources will meet demand, and requires IHS budget justifications to show cost changes tied to inflation and population served.

Adds a requirement that federal budget submissions include estimates of appropriations for the fiscal year after the year covered by the budget, strengthens tribal consultation for BIA budget development, and requires agencies to provide workload and demand information to support funding decisions.