What Is the NDIS and How Does It Work? A Plain-English Guide for Australians (2026)

The National Disability Insurance Scheme (NDIS) is Australia's first national scheme for people with disability. It marks a shift away from the older model, where governments handed block funding to agencies and community organisations, to a model where funding goes directly to eligible individuals. That funding helps people with disability with everyday life, building independence and working towards their own goals.

The scheme is administered by the National Disability Insurance Agency (NDIA), an independent statutory agency. The NDIA holds the money contributed by the Commonwealth, states and territories in a single pool, manages those funds, decides who can access the scheme and approves each participant's individual support package. So the NDIS is the scheme, and the NDIA is the body that runs it.

The NDIS now supports more than 500,000 Australians with disability, including around 80,000 children with developmental delay. It is one of the largest social reforms in Australia's history. Participant numbers grow each quarter, so for the latest figures it is worth checking the NDIS data and research portal directly.

The NDIS also has a role beyond its own participants. It is designed to connect people younger than 65 with disability to supports in their local community, even if they are not eligible for individual NDIS funding.

To become an NDIS participant you need to meet age and residence requirements, and meet either the disability requirements, the early intervention requirements, or both.

The age and residence requirements are: you must be younger than 65 on the day you apply, and you must live in Australia and be an Australian citizen, a permanent resident, or a Protected Special Category Visa holder. You cannot make a new application once you are 65 or over. If you are already a participant when you turn 65, you can usually choose to stay in the NDIS rather than move to aged care.

The disability requirements are about whether you have a permanent impairment (intellectual, cognitive, neurological, sensory, physical or psychosocial) that substantially reduces your ability to take part in everyday activities, and that means you are likely to need support for the rest of your life.

The early intervention requirements are a separate pathway. They cover people who would benefit now from supports that reduce their future need for support, including children with developmental delay. For children younger than 6 with developmental delay, the NDIS does not require a formal diagnosis where there are concerns about the child's development.

Eligibility is decided case by case against the NDIS Act 2013. If you are unsure, the NDIS website has an eligibility checklist, and you can call the NDIA on 1800 800 110.

You apply by making an Access Request. You can do this by calling the NDIA on 1800 800 110, or by completing an Access Request Form and sending it by email (the quickest way) or post. The form asks for your details, proof of identity, and information about your disability and how it affects you.

The NDIA usually needs evidence from a treating health professional, often through a Supporting Evidence Form. Getting this evidence ready before you apply is the single biggest thing that speeds up a decision.

Once you have submitted all the necessary information, the NDIA must make an access decision within 21 days. If it needs more information, it asks you for it, then decides within a further 14 days of receiving what it asked for. You receive a letter telling you the outcome, called an access decision.

If you are found eligible, the NDIA then helps prepare your first plan. Under the Participant Service Guarantee it will offer to start your plan within set timeframes, and a first plan must be approved within 56 days of the access decision.

If your access request is refused, you can ask for an internal review of the decision, and beyond that you can apply to the Administrative Review Tribunal. There is no fee to apply to the NDIS or to ask for a review.

If you are accepted, the NDIA builds you a plan that includes funding split into budget types. The three you will hear about most are Core, Capacity Building and Capital.

• Core supports: help with everyday activities, daily living, consumables, social and community participation, and transport. Core is generally the most flexible budget, so you can usually move funding between core categories to suit your needs.

• Capacity Building supports: funding to build your skills and independence over time, for example improved daily living, finding and keeping a job, health and wellbeing, or improved relationships. These are 'stated' by category, meaning the funding is set against specific categories rather than fully interchangeable.

• Capital supports: higher-cost items such as assistive technology (for example a wheelchair or communication device) and home modifications. Capital funding is stated and usually quoted, meaning it is set aside for the specific item it was approved for.

Everything in your plan must be a 'reasonable and necessary' support. That means it relates to your disability, helps you pursue your goals, represents value for money, is likely to be effective and beneficial, and is not something more appropriately funded by another system such as health, education or the aged care system.

The NDIS does not fund anything and everything. Every funded support has to meet the reasonable and necessary criteria in the NDIS Act. The NDIA looks at whether the support relates to your disability, whether it represents value for money, whether it is likely to be effective and beneficial, whether it takes account of support from family, carers and the community, and whether it is most appropriately funded by the NDIS rather than another service system.

Value for money is a practical test. The NDIA may ask whether a lower-cost support would achieve the same result, whether it is cheaper to buy or rent equipment, and who is the most appropriate person to deliver a support. It weighs the cost against the long-term benefit.

From 3 October 2024 there is also a clear legal definition of what counts as an 'NDIS support'. The Government published two lists: things that are NDIS supports (which you can buy with your funding) and things that are not (which you cannot). There is also a substitution pathway that lets you ask to replace a listed support with a more suitable everyday item where it gives better value.

To help people adjust, the NDIA built in a transition approach. For early, low-value claiming mistakes, specifically a support worth less than $1,500 on a first or second occasion, the NDIA will generally not raise a debt and will instead help you understand the rules. This concession does not apply to illegal items. Always confirm an item is an NDIS support before you buy it, because rules and lists are updated over time.

You choose who manages the money in your plan, and you can mix the options across different budgets. There are three choices.

• Self-managed: you (or your nominee) pay providers, keep records and claim back from the NDIA. This gives the most flexibility, lets you use both registered and unregistered providers, and lets you negotiate prices.

• Plan-managed: a registered plan management provider pays your providers and handles the paperwork for you. You can still use unregistered providers, and the plan management itself is funded on top of your other supports.

• NDIA-managed (agency-managed): the NDIA pays your providers directly. This is the lowest-admin option, but for any NDIA-managed part of your plan you must use NDIS-registered providers.

Since 19 May 2025, most new and reassessed plans use funding periods. Funding is usually released in three-month instalments across the life of the plan, rather than all at once. The total amount of funding does not change, only the timing of when it becomes available, and any unspent funding rolls over into the next funding period within the same plan. Plans that already run on a 12-month funding period keep that arrangement until they are reassessed.

You spend your funding by buying supports from providers. Providers fall into two groups: NDIS-registered providers, who have been assessed and approved by the NDIS Quality and Safeguards Commission, and unregistered providers, who have not gone through that process but must still follow the law and the NDIS Code of Conduct.

Which providers you can use depends on how your plan is managed. If you self-manage or use a registered plan manager, you can choose registered or unregistered providers. If a part of your plan is NDIA-managed, that part must use registered providers.

Some supports require a registered provider regardless of plan management, for example where regulated restrictive practices are involved. The rules are also tightening: from 1 July 2026, Supported Independent Living (SIL) providers and NDIS digital platform providers are set to require registration.

Your safety is overseen by the NDIS Quality and Safeguards Commission, a separate national body from the NDIA. It registers providers, handles complaints, and runs NDIS Worker Screening Checks. The Worker Screening Check is a single national check; a worker applies through the screening unit in just one state or territory, and their cleared or excluded status is recorded in a national database. You can search for registered providers using the NDIS Provider Finder.

For participants, the NDIS is free to apply for and free to access. There is no fee for an Access Request, and your supports are paid from your individual funding rather than out of your own pocket.

Crucially, NDIS funding is not means tested. Your income, assets and savings do not affect whether you can get NDIS funding or how much you receive. Receiving NDIS funding also does not reduce or affect income support such as the Disability Support Pension or Carer Allowance.

There is one common exception to be aware of: Centrelink's Mobility Allowance stops once you have a funded NDIS plan, because transport support is covered within the scheme instead. If you currently receive Mobility Allowance, factor this in.

The NDIS works alongside, not instead of, other systems. Health, education, housing and the aged care systems each keep their own responsibilities, and the NDIS funds disability-specific supports. If you are 65 or over, or a First Nations person aged 50 or over who chooses it, the aged care system rather than the NDIS is generally the relevant pathway.

Because fees, indexed prices, support lists and thresholds are reviewed regularly, always confirm current figures and rules at ndis.gov.au before making decisions.