Creates the Illinois Curriculum Overview and Alignment Act. Requires, beginning January 1, 2026, the State Board of Education to conduct a comprehensive review of all mandated units of study every 5 years. Sets forth what the review shall include. Provides that the review process shall incorporate feedback from educators and administrators, parents and guardians, students, via surveys or focus groups, and subject matter experts and community organizations. Requires the State Board of Education to publish a public report summarizing findings and recommendations from the curriculum overview. Provides that following each curriculum overview, the State Board of Education shall: (1) develop an action plan to address identified gaps or areas for improvement; (2) provide professional development for educators on updates or changes; and (3) monitor the implementation of curriculum updates and assess their impact on student outcomes. Requires the General Assembly to appropriate funds necessary for the State Board of Education to carry out the requirements of the Act. Effective immediately.