If you disagree with an NDIS decision, start with the written decision and its reasons. They help you work out what can be reviewed, the deadline and the evidence that matters.
A service complaint, a request to change your plan and a review of a decision are different processes. Choosing the right one early saves confusion.
Check whether the decision is reviewable
The NDIS decision-review guide describes reviewable eligibility and plan decisions. Internal review generally needs to be requested within three months of receiving the initial decision in writing.
Don't wait for every report before checking a deadline. Contact the NDIA or an advocate promptly if you're unsure how to make the request.
An important October 2026 distinction
The NDIA says the legislated support-budget reductions starting in October 2026 aren't reviewable decisions. This doesn't mean every other decision about your plan is beyond review.
Check the NDIA's budget-change notice and the explanation in your own letter. Get advice about the particular issue instead of assuming all funding changes have the same appeal route.
Put the issue clearly
Identify the decision, explain what you disagree with and describe the outcome you're seeking. Connect your evidence to the reasons given. Useful evidence may include relevant reports, examples of daily support needs and information the decision-maker hasn't considered.
Keep the request, attachments, submission confirmation and any later correspondence together. Note the date and reference number when you call.
External review
If you disagree with the internal review decision, the Administrative Review Tribunal may be the next step. Read the decision letter and check ART's NDIS review information for the applicable deadline and process.
Don't assume the internal-review timeframe applies to the Tribunal. Ask an independent advocate or legal service for help if needed.
What a coordinator does
A coordinator helps you organise records, understand the process and find suitable assistance. They don't decide the outcome or replace legal advice.
If the issue is that your circumstances have changed, a plan reassessment may be relevant instead. Talk with us about the coordination support you need while you work through the next step.
