The quarterly report itself is a narrative document. The supplements are where the numbers live, lettered A through R, and they are what anyone doing serious analysis of the scheme actually opens.

The NDIA’s data portal now states that following a recent review, some publications move to a six-monthly cycle from Q3 2025-26. The list is specific:

  • the National and State and Territory dashboards
  • supplements covering state and territory statistics (F to M)
  • participants by service district (O)
  • utilisation (Q)
  • access decisions and first plans (R)

Three continue quarterly: Supplement D (state and territory comparison), Supplement E (national) and Supplement P (specialist disability accommodation). The first six-monthly release of the moved publications is scheduled for Q4 2025-26.

It has already happened

The Q3 2025-26 release is on the portal now, and the supplements listed against it are D, E and P. Q is not there. Neither are the others that moved. Whatever the change is called, its first effect is that the most recent quarter of NDIS utilisation data was not published at the time the quarter was reported.

We noted this when reading the Q3 release and confirmed the absence against the file list rather than assuming it, which matters, because an announcement about future cadence and a gap in the current release are different claims and only the second is a fact about today.

Why these four, specifically

Our view, and it is opinion: the set that moved is not a random half. Utilisation is the number that shows whether people are actually able to spend the funding they have been granted, which is the difference between a plan on paper and support in a house. Access decisions and first plans show who is getting into the scheme and how quickly. Participants by service district is the geography, which is how you see whether a region is underserved. State and territory statistics are how you compare jurisdictions.

Those are, between them, most of the questions a person outside the agency would ask if they wanted to check whether the scheme is working in a particular place for a particular group. What remains quarterly is a national comparison, a national total, and specialist disability accommodation. Useful, and less pointed.

We are not suggesting that is why the change was made. The agency describes it as following a review and gives no reasons on the page we read, and a genuine production-cost argument for reducing the frequency of a large spreadsheet suite is easy to imagine. But the effect is what it is: on the questions where public data does the most work, the resolution has been halved.

What it means in practice

A six-monthly cycle means a problem visible in the numbers can now be up to six months old before anyone outside the agency can see it, and a change following a policy decision takes that much longer to appear. For anything moving quickly, and the scheme has been moving quickly, that is a material loss of visibility.

It also makes the quarterly report itself less checkable. The narrative document says what the agency concludes; the supplements are how a reader tests it. Half the year, from now on, that test is unavailable for those categories.

The first six-monthly release lands with Q4 2025-26, which is the quarter that ended on 30 June 2026 and had not been published when we checked. That release is the thing to watch: whether the moved supplements arrive in full, covering both quarters, and whether the series remain continuous enough to compare with what came before.

How we sourced this

The cadence change, the list of publications moving to six-monthly (dashboards and supplements F to M, O, Q and R), the three supplements continuing quarterly (D, E and P), the description of it as following a recent review, and the scheduling of the first six-monthly release for Q4 2025-26 are quoted from the NDIA’s data and research portal page for quarterly report supplements, read on 31 July 2026. The observation that the Q3 2025-26 release lists only supplements D, E and P is from that same page’s file list on the same date.

The agency gives no reasons for the change on that page, and we have not seen the review it refers to, so we cannot say what was considered or why. The section headed “Why these four, specifically” is our reading of what the affected supplements measure and is labelled as opinion; it is not a claim about the agency’s intent. We checked for a published Q4 2025-26 report while writing and did not find one. The main NDIS site returns 403 to us on both a plain and a browser-identified request, so this was read from the data and research portal, which does answer.

Sources

  1. National Disability Insurance Agency, Quarterly report supplements (NDIS data and research portal, read 31 July 2026): the statement that following a recent review some publications move to a six-monthly cycle from Q3 2025-26, the named publications affected (dashboards, supplements F to M, O, Q and R), the three supplements continuing quarterly (D state and territory comparison, E national, P specialist disability accommodation), the scheduling of the first six-monthly release for Q4 2025-26, and the file list for the Q3 2025-26 release showing supplements D, E and P only.

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