The NDIA Said No. Here Is What Your Rights Actually Are.

The decision letter is engineered to feel final. Formal language, an outcome, a reference number, and somewhere near the end, a sentence about review rights that reads like fine print. Most people stop there. Not because their case is weak, but because they are exhausted, because the letter feels like a verdict, and because nobody has ever walked them through what happens if they push back. So let me be the person who walks you through it. There is a two stage review pathway written into the legislation, it costs nothing, it regularly changes outcomes, and every stage of it runs on deadlines that start the day the letter arrives. Feeling defeated is understandable. Missing the clock because you felt defeated is the outcome the system should not get for free.

What can actually be reviewed

Section 99 of the NDIS Act lists the reviewable decisions, and they cover most of the moments this series has described: being refused access to the scheme, the statement of supports approved in your plan, which is where a cut or missing psychology budget lives, and a refusal to vary a plan, among others. If a letter announces a decision about you, it should also identify whether it is reviewable and how. If it does not say, ask in writing, because the classification determines your rights.

Stage one: internal review, and the three month clock

You have 3 months from the day you receive the written decision to request an internal review, sometimes called a review of a reviewable decision. It can be requested by phone, in writing or by form, and the review is conducted by an NDIA officer who was not involved in the original decision. Two features matter enormously in practice. First, you can and should submit new evidence; an internal review that just re reads the same file usually re reaches the same conclusion, and Part 5 and Part 6 of this series describe exactly the evidence that moves these decisions. Second, the original decision keeps operating while the review runs, so keep whatever supports you can sustain in place, and document any gap that the decision itself is causing. The agency aims to complete internal reviews within 60 days and the legislation requires completion within 90; if 90 days pass without an outcome, the pathway to the tribunal opens anyway.

Stage two: the Administrative Review Tribunal

If the internal review does not fix it, you can apply to the Administrative Review Tribunal, the independent body that replaced the old AAT in late 2024. The deadline is 28 days from receiving the internal review decision, which is a much shorter clock than stage one, though the tribunal can grant extensions if you apply in writing with reasons. There is no application fee for NDIS matters. The tribunal looks at your case completely fresh, new evidence welcome, and most matters resolve at case conference or conciliation without ever reaching a formal hearing. One caution worth knowing before you file: because the review is fresh, the tribunal can look at the whole decision under review, not only the single line item you are unhappy about. For most people with a genuine case that is no reason to hold back. It is a reason to file with your evidence in order rather than in hope.

You do not have to do this alone, and mostly should not

The NDIS Appeals Program funds independent advocates, and in some matters legal help, specifically to support people through tribunal review, searchable through the Disability Advocacy Finder. Advocacy is free and it measurably changes how prepared people arrive. Two funding rules to keep straight: you cannot spend plan funding on someone to represent you at the tribunal, including a lawyer or your Support Coordinator, though a participant can still use funded disability supports to participate in hearings. And a practical note for coordinators reading this: attending to support your participant is valuable and permitted, billing the plan for representing them is not.

The mindset that wins reviews

Having sat on the evidence side of this process, the pattern is unglamorous. Reviews are not won by the angriest submission or the most eloquent account of unfairness, however justified. They are won by files: functional evidence, the seven criteria answered, the regression risk named, the wording traps of Part 6 corrected. Treat the review as the second sitting of an exam where you are finally allowed to bring the right materials, and the process stops being a verdict on your worth and becomes what it legally is, a decision being checked against evidence.

What participants can do

• Write the two deadlines on the decision letter itself the day it arrives: three months for internal review, and later, 28 days for the tribunal.
• Request the internal review early, then supplement. Lodging protects the clock; evidence can follow while the review is on foot.
• Ask, in writing, for the reasons behind the decision if they are not clear. You are entitled to reasons, and reasons tell you what evidence is missing.
• Commission the missing evidence rather than resending the old file with a longer cover letter.
• Contact a free advocate through the NDIS Appeals Program the moment a tribunal application looks likely, not the week it is due.

What Support Coordinators can do

• Convert every adverse decision into dates on your calendar the day it lands, and confirm the participant knows both clocks in plain language.
• Run a gap analysis against the stated reasons: which section 34 criterion or access requirement failed, and which document answers it.
• Coordinate the evidence build, briefing providers with the specific deficiency rather than a general request for a supporting letter.
• Record the real world impact of the decision as it unfolds, since consequences that have already materialised are powerful review evidence.
• Know your funding boundary at the tribunal: support yes, billed representation no, and refer to NDIS Appeals Program advocates early.