As soon as you think you might be eligible.
If you have a permanent and significant disability that affects your everyday life, there's nothing to gain by waiting. The earlier you apply, the sooner supports can start. Early intervention is a core part of the scheme's design, especially for children.
You'll need to be under 65 when you apply and an Australian citizen, permanent resident, or Protected Special Category Visa holder.
If you’re unsure whether you’re eligible, it’s worth reaching out to the NDIA or speaking with a GP, support coordinator or local area coordinator (LAC). They can help you understand what information you’ll need and guide you through the next steps.