Once the NDIA has everything it needs, it aims to make access decisions within 21 days.

The clock works like this: if your request is complete, you should hear back within about three weeks. If the NDIA needs more information, they'll ask for it and the decision timeframe restarts once you've provided it. That's the most common reason applications take longer.

The practical takeaway: the more complete your evidence is upfront, the faster your answer comes. Make sure your reports clearly cover both your diagnosis and how your disability affects your daily life.

If you've been waiting longer than expected, call the NDIA on 1800 800 110 for an update.