Underfunded NDIS plans are more common than they should be. Participants receive plans that don't reflect their actual support needs, often because they went into their planning meeting without adequate preparation, or because their functional assessments didn't capture the full picture. As coordinators, we end up working with plans that don't fit. This article covers what to do.

Understanding why plans get underfunded

Common reasons plans come back thinner than they should be:

Inadequate evidence at planning. Generic letters from clinicians, missing functional capacity assessments, no specific documentation of need.

Participant underplaying needs at the meeting. Many participants try to seem resilient or independent during planning, ending up with funding that doesn't reflect reality.

Planner inexperience or bias. Some planners have particular views about what's "reasonable and necessary" that don't match the evidence.

System pressures on funding decisions. NDIA has explicit and implicit pressure to manage budgets, which sometimes translates into tighter plans.

Particular service categories underfunded. Some categories — capacity building for adults, certain types of behaviour support, specialised coordination — get reflexively trimmed.

Wrong categorisation of supports. A plan might have similar total funding but with the wrong distribution across categories, making it unusable.

The pattern matters because it affects how you respond. A plan underfunded due to inadequate evidence is fixable with better evidence. A plan underfunded due to a planner's view is fixable through internal review. A plan with wrong categorisation may need reformulation rather than just more money.

Internal plan review process

When a plan is wrong, the first formal step is internal review.

You have three months from the date the participant received the plan to request internal review. Don't miss this deadline.

Internal review is requested through NDIA. The application explains what's wrong with the plan and what the participant wants changed. New evidence can be submitted at this stage.

A different decision-maker reviews the case. They consider the original decision, your arguments for change, and any new evidence.

Outcomes:

Plan changed in line with the request.

Plan changed but not as much as requested.

Original plan upheld.

For complex situations, internal reviews can take a few months. For simpler cases (e.g. adding a clearly evidenced support category), they can be faster.

Many initial decisions are changed at internal review. It's a real process, not a token gesture. The success rate depends heavily on the strength of the new submission.

AAT review

If internal review is unsuccessful, the next step is the Administrative Appeals Tribunal (AAT). The AAT is independent of NDIA — staffed by tribunal members rather than NDIA decision-makers.

AAT applications:

Need to be made within 28 days of the internal review decision.

Are formal legal proceedings, though they're designed to be accessible without lawyers.

Can take 6-12 months to be heard.

Often benefit from legal representation or advocacy support. Free legal help is available through Disability Discrimination Legal Service, QAI, and similar organisations.

Result in a binding decision that NDIA must implement.

AAT review is a more significant undertaking than internal review. It's worth the effort for substantial issues but disproportionate for small adjustments.

Gathering evidence

Strong evidence wins both internal reviews and AAT reviews. Weak evidence loses them.

What strong evidence looks like:

Recent specialist reports. Within the last 6-12 months. Older reports are weaker. Get current ones.

Functional capacity assessments. Detailed, specific, addressing the impact of disability on each NDIS-relevant domain.

Day-in-the-life documentation. What does a typical day look like? What support is needed at each point? Detailed narratives are persuasive.

Family or carer statements. Particularly for participants who underplay their own needs, family observations strengthen the case.

Worker reports. Support workers and providers who've worked with the participant can document what's actually needed.

Photos and videos in some cases — showing impact, environment, equipment use, mobility patterns.

Specific examples and incidents. Concrete events showing what happens without adequate support.

Goal-aligned reasoning. How does the requested support address goals in the plan?

Generic letters that say "patient has X condition and needs more support" don't move decisions. Specific evidence that addresses NDIA's reasonable and necessary criteria does.

When to escalate

Some situations warrant escalation beyond standard internal review:

Complaint to NDIA's complaints section. For procedural issues — planning meetings that didn't follow proper process, decisions that didn't address evidence, communication failures.

Complaint to the Commonwealth Ombudsman. For administrative misconduct or systemic issues.

Disability advocacy involvement. ADA Australia, QAI, and others can advocate on behalf of participants in complex cases.

Media or political escalation. Rare and usually a last resort. Some complex cases benefit from MP involvement, particularly for decisions that affect public policy.

For most underfunded plan situations, the standard pathway (internal review → AAT) is the right one. Escalation is for cases where the system is failing in ways that extend beyond a specific decision.

Practical strategies during the wait

Internal reviews and AAT reviews take time. While waiting:

Maximise the use of existing funding. Don't burn through budget unnecessarily, but don't underuse it either. Make sure the participant is actually getting what's funded.

Document gaps continuously. What can't be done because the plan is inadequate? What's the impact? This evidence supports both the current review and future plan reviews.

Keep clinical care active. Maintain therapy, medical care, and other supports. Don't let things drift while waiting for funding fixes.

Communicate with providers. Providers may continue services on the assumption that more funding will be approved, but they need updates on the situation.

Prepare for the possibility of refusal. Have a plan B. What does the participant do if the review is unsuccessful?

Frequently asked questions

How long does internal review take?

Variable — anywhere from a few weeks for simple cases to several months for complex ones. NDIA aims for 60 days but doesn't always meet that.

Can I represent a participant at AAT without a lawyer?

Yes. AAT is designed to be accessible without legal representation. Advocacy services and disability advocates can support without formal legal status. Complex cases benefit from legal involvement but it's not required.

What if the AAT decision is also unfavourable?

Further appeal to the Federal Court is possible but unusual. Most cases end at AAT level.

Can a participant request more than one internal review?

Generally no — one internal review per decision. After internal review, AAT is the next step.

What if the participant's circumstances change while waiting?

Document the changes. Submit additional evidence. Sometimes changed circumstances support a new unscheduled review separate from the existing internal review process.

If you're working with an underfunded plan and want to talk through options, Seareal works with coordinators across Queensland on plan disputes.