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NDIS REGISTRATION

NDIS Tier 1 (Advanced) registration - the certification audit playbook.

The NDIS Commission's certification audit - what consultants and software vendors sometimes call “Tier 1” - is the higher-risk audit pathway. It applies to Supported Independent Living, behaviour support implementation, early childhood, and specialist support coordination. Here's what the certification audit asks for, who qualifies, and what a realistic preparation timeline looks like.

Last updated 7 May 2026 · 9 min read

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What Tier 1 (Advanced) registration means

The NDIS Quality and Safeguards Commission classifies providers into three registration tiers based on the risk profile of the supports they deliver. Tier 1 - Advanced Registration is reserved for the highest-risk support types: supports delivered in shared accommodation, supports involving regulated restrictive practices, supports for very young children, and specialist coordination of complex multi-system supports.

Tier 1 providers are audited via the certification pathway, which has two stages: an off-site desk audit and an on-site site visit. Lower-risk tiers go through verification (desk audit only) or self-assessment. The same Practice Standards apply across tiers, but Tier 1 layers in one or more supplementary modules and the auditor tests more deeply.

From 1 July 2026, Supported Independent Living moves to mandatory Tier 1 registration. Providers operating SIL without Tier 1 after that date will be in contravention of the NDIS Act. See our SIL mandatory registration breakdown for the full reform context.

Who needs Tier 1

  • Supported Independent Living (SIL) providers - mandatory from 1 July 2026.
  • Specialist behaviour support providers and providers implementing behaviour support plans containing regulated restrictive practices.
  • Early Childhood Approach providers delivering supports to children under nine.
  • Specialist Support Coordination (Level 3) providers.
  • Specialist Disability Accommodation (SDA) providers in many circumstances.
  • Platform providers (digital marketplaces connecting participants with workers) - mandatory from 1 July 2026.

Sole traders, small operators, and regional providers are not exempt. Tier 1 applies based on the support type, not provider size. A two-staff SIL provider faces the same audit scope as a 200-staff one - proportionality applies to depth, not coverage.

The certification audit, stage by stage

The SIL certification audit is conducted by an independent NDIS Commission-approved quality auditor. There are two compulsory stages, plus a corrective-actions cycle most providers underestimate.

Stage 1

Off-site document review

The auditor requests a structured evidence pack: governance documents, policies and procedures, training records, participant files, risk registers, complaint logs, incident reports, continuous-improvement records. They review off-site over 2–6 weeks, then issue a Stage 1 report flagging gaps.

Stage 2

On-site assessment

The auditor visits your office and at least one service location (a SIL house, an early childhood site). They interview key personnel and front-line workers, speak with participants, observe service delivery, and test whether your systems work in practice - not just on paper.

After Stage 2

Corrective actions and registration decision

Findings are issued in a draft report. Minor findings can be closed via written evidence within weeks; major findings can require months of remediation. Once the auditor is satisfied, they make a registration recommendation to the Commission, which then issues the registration decision letter.

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What evidence the certification audit actually requires

SIL certification audits are evidence-heavy. The auditor expects to see completed records, not promises or templates. Below is a condensed breakdown - the deeper version, including 38 participant-and-worker artefacts, lives in our certification audit checklist guide.

Worker compliance

  • 100-point ID + working rights
  • NDIS Worker Screening (current)
  • Working with Children Check
  • CPR + first aid certificates
  • Infection-control + medication-management training
  • Code of Conduct acknowledgment
  • Performance review history

Participant files

  • Service Agreement + Schedule of Supports
  • Individual Risk Assessment
  • Individual Emergency Plan
  • Support Plan
  • Medication Charts + Forms
  • Mealtime Management Forms (where applicable)
  • Progress notes (samples)
  • Incident + complaint history

Governance & ops

  • Practice Standards self-assessment
  • Continuous Improvement Plan
  • Risk Register + treatment plans
  • Insurance certificates (PI, PL, vehicle)
  • Policy stack (8–12 core policies)
  • Reportable Incident register
  • Restrictive Practice register (if relevant)

Deep dive · free guide

The full 38-document SIL certification audit catalogue

Every participant and staff document the NDIS Commission will ask for at certification - with triggers, tags, expandable detail and a printable PDF.

Open the guide

A realistic 6–12 month preparation timeline

Industry lawyers and approved auditors consistently land on the same lead-time guidance: most providers cannot prepare for the SIL certification audit in less than six months without burning out their team or failing.

  1. Months 1–2

    Application lodged, registration groups confirmed, approved auditor engaged. Policy stack written or refreshed against Practice Standards. Worker screening + training audit.

  2. Months 3–4

    Evidence collection in earnest. Participant files brought up to standard - service agreements, risk assessments, emergency plans signed and dated. Continuous improvement register live.

  3. Month 5

    Internal Stage 1 dry-run using the SIL certification evidence schema. Close any structural gaps before the auditor's pack request.

  4. Month 6

    Stage 1 evidence pack submitted. Auditor reviews off-site; you respond to clarifications. Schedule Stage 2 site visit.

  5. Months 7–8

    Stage 2 site visit. Auditor interviews staff and participants, observes service delivery. Draft findings report issued.

  6. Months 9–10

    Corrective actions cycle. Minor findings closed via written evidence; major findings require system or policy changes. Auditor re-tests where required.

  7. Months 11–12

    Auditor's final recommendation submitted to the Commission. Registration decision issued. You appear on the public NDIS provider register.

Penalties

Operating without SIL certification when it's required

$1.6M

per contravention (companies)

$330k

per contravention (individuals)

Banning

orders + criminal offences under the 2025 Bill

For SIL specifically, every provider must hold SIL certification from 1 July 2026. The Commission has flagged transition arrangements only for applications lodged in good faith before the deadline - operating without registration after that date is a contravention of the NDIS Act, regardless of provider size.

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How Checkbase helps with SIL certification

Checkbase is purpose-built for the document-evidence side of the SIL certification audit - the ~70% of audit artefacts that live in records: worker compliance, participant files, governance, insurance, incident and complaint logs. Your rostering, claims, and case-noting tools stay where they are.

Worker compliance, auto-scored against SIL certification

18 staff document types preconfigured to the certification audit schema. NDIS Worker Screening, WWCC, CPR, infection control, medication management - all tracked with 30-day expiry warnings and auto-generated onboarding sequences.

Participant files, every SIL audit artefact

Service agreements, individual risk assessments, emergency plans, support plans, medication charts, mealtime forms - filtered by the SIL audit lens so you see exactly what the auditor will ask for.

SIL evidence pack, one-click export

When your auditor is ready for Stage 1, share a time-boxed magic link with a 6-digit OTP. Every artefact is organised by SIL evidence category and exportable as a single branded PDF.

Frequently asked questions

Sources and further reading

Related pillar

SIL mandatory registration → 1 July 2026

Deep dive

38-document certification audit checklist

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