The full answer
Audit cost depends on three factors. First, audit type — Verification (desk only) is cheapest, Certification (Stage 1 + Stage 2 site visit) is more expensive. Second, your registration class — Single Person providers get the lowest pricing; Medium and Large Orgs face deeper audits. Third, scope and complexity — more registration groups means more audit days. Travel adds $500-$2,000 for regional providers. Audit demand is rising ahead of 2027, so expect 10-25% price increases through 2027. Get quotes from at least three approved auditors before committing.