Yes. The College Board is committed to ensuring that low-income students can access the benefits of AP and provides a $32 fee reduction per exam for eligible students with financial need. Schools are expected to forgo their $9 rebate for these students, resulting in a cost of $53 per exam (for international: $83 per exam).
Many states use federal and state funding to further reduce the exam fee for these students. The fee reductions available in each state, including fee reduction information for schools outside the U.S., can be found at collegeboard.org/apexamfeeassistance.