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PCI Audit Cost for Ecommerce Companies

Ecommerce PCI DSS audits average $145,000 with 890 QSA hours. Third-party checkout scripts and payment plugins drive significant scope — see how ecommerce merchants save up to $66k.

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$145k
Average Audit Cost
Ecommerce all-in
890 hrs
QSA Hours
Including script review
$66k
Savings Potential
With automation
Req 6.4
Script Risk
PCI DSS v4.0

Ecommerce PCI Audit Cost Breakdown

The $145k average for ecommerce PCI audits is driven by checkout complexity. Typical spend: QSA fees ($54k), internal engineering and compliance ($45k), web application scanning and pen testing ($28k), and advisory ($18k). PCI DSS v4.0 Requirement 6.4 adds new script management obligations that increase QSA evidence review time by 15–20%.

Cost CategoryLowTypicalHigh
QSA Fees$32k$54k$86k
Internal Staff$26k$45k$68k
App Scanning & Pen Test$16k$28k$44k
Advisory/Legal$10k$18k$28k
Total$84k$145k$226k

PCI DSS v4.0 Requirement 6.4: New Ecommerce Obligations

Effective March 2025, all ecommerce merchants must maintain a complete inventory of payment page scripts, implement change detection for each script, and respond to unauthorised modifications within defined timeframes. GRCTrack automates script inventory management with continuous monitoring that alerts on any unauthorised change to your payment page scripts, satisfying this requirement without manual effort.

Frequently Asked Questions

How much does a PCI DSS audit cost for an ecommerce company?

Ecommerce PCI audits average $145,000 all-in with 890 QSA hours. The cost is driven by the complexity of checkout flows, the number of third-party payment scripts and plugins, and whether the merchant handles card data directly or uses hosted payment pages.

What makes ecommerce PCI scoping so complex?

Ecommerce sites commonly load dozens of third-party JavaScript libraries on checkout pages. Under PCI DSS v4.0, Requirement 6.4 mandates that all scripts on payment pages be inventoried, authorised, and integrity-verified. This alone can add 80–120 QSA hours to a typical audit.

How does third-party script management affect ecommerce PCI costs?

Every unauthorised or unmonitored script on a payment page is a potential Magecart attack vector and a PCI compliance finding. Ecommerce merchants without automated script monitoring typically spend 3–4x more staff time on this requirement than those with continuous monitoring tools.

Can ecommerce companies use SAQ instead of a full ROC?

Ecommerce merchants that redirect entirely to a hosted payment page and never handle card data may qualify for SAQ A, which costs a fraction of a full ROC audit. GRCTrack helps you determine your correct SAQ type and validates your architecture against the eligibility criteria before you engage a QSA.

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