Why Was My NDIS Invoice Rejected?

An invoice is a request for payment from a provider. A claim is the formal request for NDIS funding. They are linked, but they are not the same thing.

The main differences are:

• Invoice queried by a plan manager: More information, approval or a correction is needed before a claim is submitted.
• Claim held by the NDIA: The NDIA is checking a submitted claim and may request evidence, but has not rejected it.
• Claim rejected by the NDIA: The NDIA has decided the claim is not valid or compliant. It provides written reasons.
• Payment delayed: The invoice or claim may still be progressing. There may be no formal rejection.

Example: A plan manager asks a provider to correct a missing support date before lodging a claim. The NDIA has not rejected anything.

The NDIA explains the difference between a claim on hold and a rejected claim in its Guide to getting paid.

If your invoice has simply not been paid, read Why has my NDIS invoice not been paid?.

The written reason should identify what needs attention, and these are possible issues rather than official rejection codes.

The invoice details are missing or incorrect

The participant's details, support date, quantity, amount or support item may be missing or inconsistent with the service delivered.

The NDIA record-keeping requirements cover participant and provider details, support dates, quantities, support item, claim type and amount.

See the NDIS invoice information checklist for the full list.

The support or budget does not fit

The support must fit your plan and be an NDIS support, with enough funds in the right budget and funding period.

A claim can sometimes wait until the next funding period in the same plan. You and the provider must agree, the provider must wait for payment, and enough funding must remain for future supports. Claim deadlines still apply.

Read the NDIA funding-period guidance.

Never change the service date or use an unrelated budget to get a claim accepted. Ask your plan manager about the funding rule, or read how to check your remaining NDIS funding and the difference between stated and flexible supports.

The price or support item is wrong

The 2026-27 NDIS pricing schedules set maximum prices for NDIA-managed and plan-managed funding, not self-managed funding. A claim cannot be paid above the applicable maximum price, and the item must match the support delivered.

Check the current 2026-27 NDIS pricing schedule, which took effect on 24 September 2026.

Claim details, approval or provider status are wrong

The NDIA lists wrong dates, duplicate claims, missing bank or ABN details and incorrect management type as possible rejection reasons. Some supports also require the provider to be recorded on the participant's plan. See its guide to claim rejections.

A plan manager must obtain participant authorisation. Check the claim status before taking action.

Work through these steps:

1. Get the written reason: Find out whether the provider, plan manager or NDIA raised the issue.
2. Check the invoice and claim: Confirm the support date, description, amount, support item and claim status.
3. Check the plan and budget: Ask whether the support fits the plan and available funding.
4. Correct genuine errors: The provider should correct its invoice or supporting records. The plan manager can explain an invoice query.
5. Confirm who acts next: The plan manager submits plan-managed claims. The participant, plan nominee or child representative handles self-managed claims. The provider submits NDIA-managed claims.
6. Confirm the next step before resubmission: The authorised claimant should decide whether a correction, evidence or new claim is appropriate.

Keep copies of the invoice and supporting records.

Sometimes, depending on why it was rejected and whether the original claim remains open.

If the NDIA requests evidence, the claimant should follow the written request and deadline. After a rejection, check the notice before deciding whether another claim is appropriate.

A corrected invoice does not guarantee payment, so do not submit repeated claims while the original is being checked.

What is changing on 1 December 2026?

The National Disability Insurance Scheme Amendment (Securing the NDIS for Future Generations) Act 2026 changes the general claim period from two years to 90 days from 1 December 2026.

The deadline runs from the day the support is provided. It applies to the claim, not the date an invoice is issued. The person responsible for making the claim must act within the applicable period.

Under section 45A(6) of the NDIS Act, the NDIA may accept a late claim. Exceptional circumstances must justify the delay, and the claim must be made within a reasonable period given those circumstances.

The NDIA already applies extra checks to claims submitted more than 90 days after support delivery, and may hold them for review.

This operational process is separate from the new legal deadline. Send older invoices promptly and ask the claimant or NDIA how the new rule applies to that support.

Ask for the decision and supporting evidence, and raise invoice queries with the provider.

If your plan manager declined to process it, ask for its explanation and complaint process. For an NDIA rejection, check the notice and ask about review or complaint options.

A plan manager can explain the rules, but cannot guarantee the NDIA will reverse a decision.

Check your service agreement and seek independent advice if you dispute a charge.

Does a rejected invoice automatically become my debt?

Not automatically. Check your service agreement and ask the provider to explain any amount it says you owe.

Can my plan manager reverse an NDIA rejection?

No. Your plan manager can explain the claim, but the NDIA makes its own decision.

Should I change the support date?

No. The invoice must accurately show when the support was delivered.