NDIS Audit Interview Questions: How to Prepare Your Team for Certification Audit

What happens during an NDIS audit interview?

An NDIS audit interview is a structured conversation between an auditor from an Approved Quality Auditor (AQA) organisation and representatives of the registered provider. The auditor's goal is to assess whether the provider's documented systems translate into genuine, lived practice — not just paper compliance.

The interview process typically follows this structure:

1. Introduction: The auditor explains the interview process, the questions that will be asked, and how the information will be used. They confirm consent for note-taking.
2. Role clarification: The auditor confirms the interviewee's role and responsibilities within the organisation.
3. Practice Standard questions: Questions follow the structure of the NDIS Practice Standards — moving through the core module outcomes and any supplementary module outcomes relevant to the registration scope.
4. Evidence review: The auditor may request specific documents during the interview (e.g., "Can you show me your incident register for the past 12 months?").
5. Scenario questions: For support workers, the auditor often poses practical scenarios to assess decision-making and knowledge of procedures.
6. Closing: The auditor summarises the interview and provides an opportunity to add information or clarify responses.

Who gets interviewed?

For a typical certification audit of a small-to-medium provider, the following people can expect to be interviewed:

The auditor selects which support workers to interview — you do not choose for them. They typically select a mix that might include a newer staff member (to assess induction quality) and a more experienced worker (to assess ongoing practice quality). Be prepared for any member of your team to be interviewed.

Common auditor questions for key personnel

The following questions represent the core of what NDIS auditors ask of CEOs, Directors, and Practice Managers during certification audits. Each question is mapped to the relevant Practice Standard outcome.

Common auditor questions for support workers

Support worker interview questions focus on practical knowledge of day-to-day procedures. Auditors assess whether workers genuinely understand their obligations — not whether they can recite policy headings.

Evidence to have ready during the interview

The interview is not purely verbal — auditors will request documents to support the answers given. Having these organised and accessible dramatically reduces audit stress and demonstrates operational efficiency.

• Document Control Register (current, showing all policies with review dates)
• Training Register (current, showing all mandatory training completions and upcoming renewals)
• Worker Screening Register (current clearance status for all workers)
• Incident Register (last 12 months minimum)
• Complaints Register (last 12 months minimum)
• Continuous Improvement Register (showing completed and in-progress actions)
• Sample participant files (2–3 complete files including service agreements, support plans, and progress notes)
• Internal audit records (schedule and completed audit reports)
• Key Personnel Suitability Assessment records
• Sample induction checklists for current workers
• Management meeting minutes showing quality agenda items

Organise these documents so you can locate any of them within 2 minutes. An auditor who has to wait 15 minutes while you search for a document is an auditor who is forming a negative impression of your systems.

How to handle questions you can't answer

No preparation can guarantee that every question will be answered perfectly. When you or a staff member encounters a question they cannot fully answer:

• Be honest: "I'm not certain of the exact figure/process/date — let me check and come back to you."
• Demonstrate the system: "I would find that information in [location/document] — would you like me to look it up now?"
• Don't fabricate: A wrong answer delivered confidently is worse than an honest "I'm not sure." Auditors often know the correct answer and are testing honesty as much as knowledge.
• Follow up: If you promise to provide information after the interview, do so the same day. Late follow-ups reflect poorly on organisational responsiveness.

For support workers, prepare them for the possibility that they won't know every answer by role-playing the scenario: "You don't know — what do you do next?" The correct answer is almost always some version of "I would ask my supervisor" or "I would check the policy."

Desktop audit vs on-site audit: the difference

NDIS certification audits are conducted in two stages, and understanding the difference helps you prepare appropriately for each.

Stage 1 — Desktop (document) audit

The desktop audit is a review of your documentation. The auditor requests your policy library, registers, evidence of training, and governance records before the on-site visit (typically 2–4 weeks before). The desktop audit assesses whether you have the right documents in place, whether they are current and complete, and whether they address all required Practice Standard outcomes.

The desktop audit finding determines the scope and focus of the on-site audit. If you have document control gaps, the auditor will ask about them during the on-site interview. Resolving as many desktop audit findings as possible before the on-site visit reduces the risk of non-conformances.

Stage 2 — On-site certification audit

The on-site audit involves the auditor visiting your premises, conducting interviews (as described above), observing the physical environment, and sampling participant records. This is where the interview questions in this guide become critical.

For SIL providers, the on-site audit may also involve visiting participant homes to assess the safety of the living environment, review in-home documentation (MAR books, communication books, handover notes), and potentially speak with participants.

Preparing participant records for auditor sampling

Auditors will request to review a sample of participant records — typically 2–4 complete files. These files are the most direct evidence of how your supports are actually delivered. A strong participant file demonstrates that:

• A signed service agreement is in place, current, and reflects the participant's current NDIS plan
• A support plan or person-centred plan has been developed with the participant's input
• Progress notes are completed for each shift, are factual and objective, and link back to the participant's NDIS goals
• The participant's rights, privacy, and consent obligations have been met (signed consent forms, Participant Rights Statement)
• Any risk assessments are current and filed appropriately
• Medication Administration Records (if applicable) are complete and reconcile with the medication regime prescribed

Ensure your support workers write consistently high-quality progress notes — these are one of the most closely examined documents in a certification audit. The free NDIS Notes Rewriter tool helps support workers produce compliant, goal-focused progress notes that will stand up to auditor scrutiny.

The audit interview is ultimately a test of whether compliance is genuine. Organisations that build real systems, train their staff properly, and embed policies into daily practice will demonstrate this naturally when interviewed. Those who rely on documentation assembled just before the audit will find that gaps in genuine knowledge — shown in the interview room — undermine even the most comprehensive policy library.

Start your audit preparation at least 3–6 months before your scheduled audit date. Use that time not just to build documentation, but to train your team, conduct internal audits, and practice answering the kinds of questions your auditor will ask. By audit day, your team should feel confident — not because they've memorised scripts, but because they genuinely know what they're doing and why.