The NDIS Internal Review Process (Section 100)
The NDIS internal review process under section 100 lets you challenge a decision. A plain-English guide to timeframes, how it works, and what comes next.
If the NDIA has made a decision you disagree with — about your eligibility, your funding, or a support that wasn't included — you have the right to challenge it. The first formal step is an internal review under section 100 of the NDIS Act. This guide explains how an internal review works, the deadline you need to meet, and what happens afterwards.
What an internal review is
The three-month deadline
How to request one
What the reviewer can do
Building your case
What happens after the review
Getting support through the process
Frequently asked questions
What is an NDIS internal review?
An internal review under section 100 of the NDIS Act is a fresh look at a decision by a different NDIA delegate. You can request one if you disagree with a decision about eligibility, funding or a support. The reviewer can affirm, vary, or set aside the original decision.
How long do I have to request an internal review?
You generally have three months from the day you receive the decision to request an internal review. It's a firm deadline, so act quickly if you disagree. If unsure, lodge the request to preserve your rights and provide more detail later.
How do I request an NDIS internal review?
You can request one in writing, by phone, in person, or with help from an advocate or support coordinator. Be clear about which decision you're challenging and, if possible, why. You can use the NDIA's review request form or simply write to them.
What happens if the internal review doesn't go my way?
If the internal review affirms a decision you still disagree with, you can appeal to the Administrative Review Tribunal, the independent body that reviews NDIS decisions. You generally must complete the internal review first. The guide on appealing to the ART explains that next step.