Permanent and significant disability

A lifelong disability with substantial impact on daily life — central to NDIS eligibility.

What it means

Permanent and significant disability is a central part of meeting the NDIS access requirements for people who apply on the basis of disability. Permanent means the disability is likely to be lifelong, or is not expected to go away, even if its effects can vary over time or be helped by treatment. Significant means it substantially affects your ability to carry out everyday activities.

The NDIS focuses on the functional impact of a disability, which is how it affects what you can do in daily life, rather than only on the diagnosis or the medical label. Two people with the same condition can be affected very differently, so the emphasis is on your individual situation and the support you need to live your life.

In practice

Everyday activities affected by a permanent and significant disability can include things like moving around, communicating, learning, self-care such as showering and dressing, managing your own life and taking part in social and community activities. If a disability substantially reduces your ability to do these things without help, that points to a significant impact.

When you apply for the NDIS, you provide evidence that describes your disability and, importantly, how it affects your daily life. This usually comes from treating health professionals such as doctors and allied health workers. The most useful evidence explains your functional capacity, whether the disability is permanent, and what support you need, rather than just naming a condition. Because the focus is on function, keeping information about how your disability affects everyday tasks is valuable both at access and when your supports are being planned.

A real example

For example, Damien has a spinal cord injury that is permanent and substantially affects his ability to move around, transfer and manage self-care without help. When he applied for the NDIS, his evidence described not just his diagnosis but how the injury affects his everyday activities and the support he needs. This functional information helped show his disability was both permanent and significant.

Permanent and significant disability — FAQs

What does 'permanent' mean for NDIS access?
Permanent means the disability is likely to be lifelong, or is not expected to go away. It can still count as permanent even if the effects vary over time or can be helped by treatment or medication. The key point is that the underlying disability is ongoing rather than temporary. Evidence from treating professionals usually helps show that the disability is permanent for access purposes.
What does 'significant' mean in this context?
Significant means the disability substantially affects your ability to carry out everyday activities, such as moving around, communicating, learning, self-care, or taking part in social and community life. It is about the real impact on your daily functioning, not just the medical diagnosis. If your disability substantially reduces what you can do without support, that points towards it being significant for NDIS purposes.
Why does the NDIS focus on functional impact rather than diagnosis?
The NDIS focuses on functional impact because two people with the same diagnosis can be affected very differently. What matters is how the disability affects what you can do in everyday life and the support you need, not just the name of the condition. This means your evidence should describe your day-to-day functioning, so the NDIA can understand your individual situation and the support that would help you.
What kind of evidence shows a permanent and significant disability?
The most useful evidence describes both that your disability is permanent and how it affects your everyday activities. It usually comes from treating health professionals such as doctors and allied health workers who know you. Rather than just naming a condition, strong evidence explains your functional capacity, what you can and cannot do without support, and why the disability is expected to be lifelong.
Can a condition that changes over time still be permanent and significant?
Yes. A disability can still be considered permanent even if its effects vary over time, come and go, or are helped by treatment. What matters is that the underlying disability is ongoing rather than temporary, and that it substantially affects your everyday activities. Evidence that explains this pattern, including how the disability affects you on a typical basis, helps the NDIA understand your situation.

Explore more NDIS resources

Official NDIS sources

Novida is an independent directory, not the NDIA. We explain each form in plain English and link you to the official copy — always download and submit the current version from the official website, as forms are updated from time to time.