The full answer
NDIS plan validity depends on participant type. New to NDIS: often a 6-12 month initial plan (to assess if NDIS is right, goals clarity). Established participants: typically 12-month plans (reviewed annually). Under-18s entering NDIS: 6-12 month plans. School-to-work transition: often longer 18-24 month plans. Participants aged 65+ or with stable, long-term needs: sometimes 24-36 month plans. Early Childhood Early Intervention (ECEI) participants: 6 months. As a provider, you need to track plan expiry dates — they're your revenue trigger. Participant losing funding date means they either need a new plan or fall out. Proactive support coordinators work with participants 2-3 months before plan review to prepare evidence and recommendations.