What is my NDIS number?

What your NDIS number is for

Your NDIS number is how the NDIA identifies you. It stays the same across plans, so it links your access decision, every plan you have had and every claim made against your funding.

You will be asked for it whenever you contact the NDIA, start with a new provider, sign up with a plan manager or submit an invoice for reimbursement if you are self managed.

Where to find it

If you cannot find your number, check these places first:

• The letter the NDIA sent you when you were accepted into the NDIS
• The first page of your NDIS plan
• The my NDIS participant portal or the my NDIS app, under your personal details
• Earlier invoices or statements from your providers or plan manager
• If none of these work, call the NDIA on 1800 800 110. They will confirm your identity before giving it out

Who needs your NDIS number

Anyone who claims payment from your plan needs it, because claims are matched to your number. That includes:

• Providers whose supports are paid by the NDIA, so they can create a service booking or claim
• Your plan manager, so they can pay invoices and claim from your plan
• Providers who invoice you or your plan manager, because NDIS invoices should show your name and NDIS number
• Your support coordinator, who uses it to see your plan and help you connect with providers

Sharing it safely

Treat your NDIS number like other personal identifiers. Give it to providers you have agreed to work with, but do not post it publicly or give it to someone who contacts you out of the blue offering free equipment or extra funding.

Your number on its own does not let a provider see your plan. The NDIA needs your consent to share your information, and you control which providers can see which parts of your plan through the participant portal or by telling the NDIA. When a provider looks you up, they also need details such as your surname and date of birth.

If you think someone has misused your number or claimed for supports you did not receive, check your claims in the portal and report it to the NDIA.

Numbers that are easy to confuse

Your NDIS number is not the same as these other numbers you may see:

• A provider's registration number, which identifies a registered provider, not you
• A support item number, which identifies the type of support being claimed
• Your Participant Worker Screening ID, a 7 digit number in the NDIS Worker Screening Database that you give workers you employ directly so they can apply for their Worker Screening Check
• Your Centrelink customer reference number, which belongs to Services Australia

For providers

Collect the participant's NDIS number when you sign a service agreement, and record it exactly. A wrong digit is one of the most common reasons a claim is rejected. Put it on every invoice you send to a self managed participant or plan manager. From 1 December 2026 claims must be made within 90 days of the support, so getting details right first time matters more than ever.