Adjust company size, audit type, auditor tier, Trust Services Criteria, readiness, vendors, and locations. The calculator gives a planning range, then the cost guide explains the underlying ranges.
Estimate your audit cost based on your specific requirements
The estimate is a planning range. We match firms to your scope and bring 3–10 ballparks back side by side. Free and anonymized.
Free and anonymous. 3–10 quotes in 48 hours. One call, not five.
The estimate above is a planning range. To see what firms actually quote for your scope, send one brief and let them respond against the same assumptions.
The calculator is a planning tool. Real quotes still depend on scope, systems, criteria, and how much readiness work is left.
Each tier starts at the median of the firms’ published or observed minimum fees and ends at the median of their maximum fees. It describes a typical quoted band before scope adjustments, not a promise that half of final quotes fall outside it.
Specialists usually price lower when the scope is Security-only and evidence is already organized.
Multiple criteria, regulated buyers, complex infrastructure, and Big Four requirements push cost up.
The audit fee is not the whole cost. Budget for GRC software, evidence owners, remediation, and optional testing.
How the estimate is calculated, what moves it, and when to use the cost guide instead.
Send the scope once and ask firms to reply against the same assumptions.
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