The “Reasonable and Necessary” Test: How Does the NDIS Decide What to Fund?
The “Reasonable and Necessary” Test: How Does the NDIS Decide What to Fund?
- March 26, 2026
If you’ve ever sat down with your NDIS plan and thought, “Why is this covered, but that isn’t?” — you’re definitely not alone.
For many people and families navigating disability care in Sydney, the phrase “reasonable and necessary” can feel a bit confusing (and honestly, a little frustrating too). So let’s break it down together in a way that actually makes sense — no jargon, no overwhelm.
So, What Does “Reasonable and Necessary” Actually Mean?
At its heart, the NDIS uses this test to decide what supports and services it will fund in your plan.
Think of it like a checklist the NDIS uses to ask:
Is this support truly helpful, fair, and appropriate for your life right now?
It’s not about limiting you — it’s about making sure your plan includes supports that genuinely help you live more independently, safely, and confidently.
The 6 Key Things the NDIS Looks At
When deciding what to fund, the NDIS considers a few important questions:
1. Will it help you achieve your goals?
Your NDIS plan is built around your goals — whether that’s learning new skills, finding work, or becoming more independent at home.
If a support directly helps you move towards those goals, it’s more likely to be funded.
Tip: Be really clear about your goals during planning meetings — it makes a big difference.
2. Is it good value for money?
This doesn’t mean choosing the cheapest option — it means choosing supports that are effective and meaningful.
For example, investing in disability home services that build daily living skills might reduce the need for more intensive support later.
3. Is it safe and effective?
The NDIS wants to ensure that any funded support is evidence-based and actually works.
That’s why established disability care services are often preferred — they bring experience, structure, and reliability.
4. Is it something the NDIS should fund?
Some supports fall under other systems, like healthcare or education.
For example:
Hospital treatments → covered by the health system
School support → covered by education
The NDIS focuses specifically on disability-related supports.
5. Does it consider your informal supports?
Your family, friends, and community already play an important role.
The NDIS won’t replace that support — but it will step in where extra help is needed to maintain balance and wellbeing.
6. Is it related to your disability?
This one’s simple but important — supports need to be directly connected to your disability and how it impacts your daily life.
Why This Matters for You
Understanding this test puts you back in control.
Instead of feeling like decisions are random, you can start to see the why behind them — and even advocate more confidently for what you need.
Whether you’re exploring disability care in Sydney options for the first time or reviewing your current plan, knowing these criteria helps you:
✔ Ask better questions
✔ Prepare stronger planning conversations
✔ Choose supports that truly work for you
A Quick Real-Life Example
Let’s say someone wants support with cooking at home.
- If it builds independence → ✅ Likely funded
- If it relates to their disability → ✅ Yes
- If it’s provided through trusted disability home services → ✅ Even better
But if the request is for something unrelated (like general household upgrades not linked to disability needs), it may not meet the criteria.
Real-life examples: The "Yes" vs. "Maybe"
Navigating disability care services in a busy city like Sydney can feel like a lot. Let’s look at how this test works in the real world:
The Support Worker: If your disability makes it hard to shower or cook safely, a support worker for daily living is almost always seen as “reasonable and necessary.” It keeps you safe and independent in your own home.
The New Laptop: Generally, the NDIS won’t buy you a standard laptop because most people (with or without a disability) need one for life. However, if you need a specific, high-tech communication device because of your disability, that’s a different story!
Cleaning Services: Can you get help with the vacuuming? If your disability prevents you from doing it yourself and it helps you stay living in your home, it’s often approved as part of your disability home services.
You’re Allowed to Ask Questions (And You Should!)
If something in your plan doesn’t make sense, it’s okay to ask:
- “How was this decision made?”
- “Can I provide more information?”
- “What would make this support eligible?”
You deserve clarity and confidence in your supports.
Final Thoughts
The “reasonable and necessary” test might sound technical, but at its core, it’s about you — your goals, your independence, and your quality of life.
And while the system isn’t always perfect, understanding how it works can make it feel a whole lot less overwhelming.
If you’re ever unsure, remember:
- You can ask questions
- You can seek support
- You can advocate for what matters to you
You’re not just navigating the NDIS — you’re shaping a life that works for you.