Hearing two different terms can be confusing but once you hear the explanation, hopefully, it will be easier to understand.

The first three letters for both terms are National Disability Insurance. It is the last letter that makes the difference.

The S stands for Scheme. The NDIS was created by the government via legislation. You can think of it in a similar way to Medicare which was also created. So, if you use the term NDIS, you are referring to the National Disability Insurance Scheme.

The A stands for Agency and refers to people. The Government set up the National Disability Insurance Agency (NDIA) to run the National Disability Insurance Scheme (NDIS). The Government could outsource the NDIA at any time to businesses like what they did with the old CES which became Job Network. Hence, it makes sense to separate the Scheme from the people running it.

If you are talking about the people who run the NDIS, you would refer to them as the NDIA. For example, you want to phone the 1800 number to ask a question. You are phoning the NDIA to talk about the NDIS. You met with a planner who is with the NDIA and you talked about the NDIS.

At the end of the day, if you want to use the word NDIS for everything, people will understand. Don’t worry too much.