The full answer

Verification audits apply to lower-risk service types — typically home-based supports like personal care, domestic assistance and most allied health. The auditor reviews your documents remotely; no site visit. Costs $1,500 to $3,000. Certification audits apply to higher-risk service types — SIL, SDA, behaviour support, day programmes, nursing. They include Stage 1 (desk review) and Stage 2 (on-site interviews and observations of service delivery). Costs $4,000 to $12,000+. The NDIS Commission decides which audit type your registration scope requires when you lodge.