PCI DSS RoC Audits: What to Expect and How to Prepare

Meeting PCI DSS requirements is never just a checkbox exercise; it’s about proving that your security practices hold up under real scrutiny. For organizations processing large volumes of cardholder data, this means undergoing a Report on Compliance (RoC) audit. Acquiring banks, card brands, and sometimes even major clients can make this requirement mandatory, regardless of your merchant level.

A RoC is far more than a formality; it’s a detailed investigation into your controls, policies, and ability to safeguard payment data. Missing the mark can create both compliance and reputational setbacks. In this blog, we will walk you through who needs a RoC audit, how it works, and how you can prepare effectively.

» Meet PCI DSS requirements easily: Contact us

Organizations Required to Undergo a RoC Audit

The obligation to undergo a RoC audit is determined by an organization's PCI DSS level, which is based on annual transaction volume and other risk factors.

• Level 1 merchants, those processing over 6 million card transactions annually, must undergo a RoC.
• High-volume service providers that handle significant amounts of cardholder data also have this requirement.

Additionally, any organization that has suffered a data breach involving cardholder data may be required to complete a RoC as a condition for continuing to accept payments. An RoC, performed by a third party, provides a more comprehensive and formal validation of compliance than an SAQ.

» Read more: ROC vs. SAQ - which one do you need?

Need Help Identifying Your PCI DSS Level?

Use our expert guide to avoid compliance challenges by targeting the appropriate PCI DSS level for your business.

Learn More

The Roles of Key Stakeholders

The various stakeholders play distinct roles in initiating and enforcing a RoC audit.

• The PCI Security Standards Council (PCI SSC): This body is responsible for developing and maintaining the PCI Data Security Standard and its related programs. However, it does not enforce compliance.
• Card brands: Major card brands like Visa and Mastercard determine which organizations must validate their compliance. They also set the appropriate validation level (SAQ or RoC) and define penalties for non-compliance.
• Acquiring banks: These banks are responsible for enforcing compliance among their merchants and service providers. They can initiate or require a RoC audit, review the submitted reports, and ensure their business partners are adhering to PCI controls.

In essence, the PCI SSC creates the rules, while card brands and acquiring banks drive the validation and enforcement of RoC audits.

» Learn more: What is good compliance, and how to get started?

The Role of a QSA

A Qualified Security Assessor (QSA) is a professional certified by the PCI SSC to assess organizations for PCI DSS compliance. The QSA plays a critical role in structuring and validating the audit. Their key responsibilities include:

• Helping to define the scope of the assessment.
• Reviewing security controls and identifying compliance gaps.
• Validating corrective actions and gathering evidence.
• Compiling the findings into an RoC and an Attestation of Compliance (AoC).

The QSA's work directly influences the structure and outcome of the audit by ensuring a comprehensive, objective, and credible evaluation. Their expert guidance helps organizations strengthen their security posture and achieve and maintain compliance.

» Here's everything you need to know about QSA's and why they are important for your business

Need Expert QSA Services?

Trust GRSee's QSAs to ensure you reach and maintain PCI DSS compliance.

Talk to Our Experts

5 Phases of a RoC Audit

A RoC audit is a multi-step process that moves from initial planning to final submission and continuous monitoring.

1. Pre-Audit Engagement

In this phase, the organization selects a QSA, a professional certified to conduct these assessments. The QSA and the organization work together to:

• Define the audit scope, including all systems and processes that handle cardholder data.
• Plan the project timeline.
• Identify necessary documentation for the audit.

Proper scoping is critical to ensuring all relevant systems are included and to laying the foundation for an efficient, focused assessment.

2. Discovery and Gap Analysis

This phase involves a preliminary review of systems, processes, and controls to identify any gaps or deficiencies against PCI DSS requirements. This helps an organization to:

• Understand its current compliance posture.
• Prioritize remediation efforts before the formal RoC audit.
• Streamline the assessment process by addressing weaknesses early.

3. Onsite or Remote Audit Assessment

During this phase, the QSA performs a detailed review of the security environment. The QSA's work includes:

• Conducting interviews with key personnel.
• Reviewing policies and procedures.
• Validating technical and physical security controls.
• Examining systems that store, process, or transmit cardholder data.

Evidence is gathered through observation, testing, and documentation, forming the basis for the final RoC.

4. Remediation and Re-Testing

If non-compliance is found, the QSA provides a remediation plan. The organization must then:

• Implement fixes, such as patching systems or updating policies.
• Provide evidence that corrective actions have been completed.
• Undergo re-testing by the QSA to confirm all gaps are resolved.

This step ensures the environment meets all PCI DSS standards before the Report on Compliance is finalized.

» Make sure you know how to conduct a thorough PCI DSS gap assessment to minimize risks

5. RoC and Attestation

After confirming compliance, the QSA prepares the formal documentation. This includes:

• The RoC is a detailed audit report that documents how the organization meets each PCI DSS requirement.
• The AoC is a formal summary that declares the compliance status.

These documents are then submitted to acquiring banks or card brands, serving as official proof of compliance.

6. Ongoing Monitoring and Annual Reassessment

PCI DSS compliance is not a one-time achievement. Organizations must maintain their security posture through:

• Continuous monitoring, including regular vulnerability scans and log reviews.
• Annual reassessment to evaluate the compliance posture and prepare for the next RoC audit.
• Keeping documentation, controls, and procedures up to date throughout the year.

This ensures sustained compliance and reduces risk over time.

» GRSee helps you complete your RoC correctly and avoid common PCI DSS myths while staying compliant

How to Prepare for a PCI DSS RoC Audit

A successful RoC audit is the result of methodical, year-round preparation. Here's a breakdown of the key strategies to ensure your organization is ready.

To accurately define the audit scope and prepare for the pre-engagement phase, organizations should begin by identifying and mapping all systems, processes, and personnel that store, process, or transmit cardholder data.

Key stakeholders should be involved early, and all policies, procedures, and asset inventories must be updated.

Defining Scope and Initial Planning

• For merchants, the focus is on POS systems and e-commerce platforms.
• Service providers must include all services that affect client cardholder data and the supporting infrastructure.
• Third-party vendors should assess their impact on client compliance and clarify responsibilities through contracts.

Each entity must tailor the scope to its role in the payment chain, ensuring only relevant systems are included, and maintain clear documentation for the assessors.

» Find out if your supply chain is putting your company at significant risk

Documentation and Evidence Collection

Preparing policies, procedures, and technical documentation is a critical step. All documents should be current, clearly written, and mapped to the applicable PCI DSS requirements. Using standardized templates and maintaining a centralized repository can greatly streamline this process.

• Merchants must detail data flows and access controls for their payment systems.
• Service providers need in-depth documentation on network segmentation and customer data isolation.
• Third-party vendors must provide evidence that their services support client compliance.

For evidence collection, gather system configurations, logs, and screenshots. The strategy should adapt based on your environment.

• On-premise infrastructure: Use local agents or manual scripts to collect evidence from physical systems.
• Cloud services: Leverage provider APIs and native tools for automated collection.
• Hybrid models: Use unified platforms to ensure consistent visibility and policy enforcement across both environments.

Common mistakes in evidence collection, such as incomplete timestamps or poor chain of custody, can be avoided by having a comprehensive plan, documenting every step of the process, and using automated tools to ensure data integrity.

» Did you know? The cloud might not be safe anymore

Preparing Teams and Environments

Organizations must prepare both their teams and their technical environments for the QSA's interviews and inspections. Conduct mock interviews and walkthroughs to highlight knowledge gaps and train staff on their specific roles and responsibilities.

• Ensure teams have access to clear, up-to-date documentation.
• The technical environment should be prepared with updated policies, change controls, and accessible logs and reports.

Smaller vendors may rely on leaner teams and manual processes, requiring more direct coaching. Enterprise service providers typically have more structured, automated processes.

Addressing Non-Compliant Findings

A proactive approach to remediation is crucial. Conduct regular internal audits and maintain up-to-date documentation to catch issues early. When non-compliant findings are identified, implement clear Corrective Action Plans (CAPs) with assigned ownership, timelines, and measurable outcomes.

• For small organizations, a direct, centralized workflow for remediation is often most effective.
• For larger enterprises, structured, cross-departmental workflows integrated with GRC platforms are necessary.

Common remediation pitfalls include superficial fixes and delayed action. To avoid these, ensure every fix is tested and validated, and maintain a strong governance framework.

» Do you have a startup? Here's everything you need to know before handling payments

Possible Outcomes and Follow-Up Actions of a RoC Audit

The potential outcomes of a PCI DSS RoC audit are: Full Compliance, Compliance with Remediation Required, or Non-Compliance.

• If an organization achieves full compliance, it submits the RoC and AOC to relevant parties and continues its ongoing security and compliance activities.
• If remediation is required for minor issues, the organization must implement corrective actions, such as updating documentation or controls, before the QSA can finalize the RoC.
• In cases of non-compliance, the organization must create a formal remediation plan and may undergo a full reassessment once all gaps are addressed.

After the audit, regardless of the outcome, follow-up actions are expected. These typically include implementing any corrective measures identified and maintaining a schedule of quarterly vulnerability scans and annual penetration tests.

» Still confused? Here's everything you need to know about PCI DSS

The Shared Responsibility of PCI Compliance

PCI DSS operates on a shared responsibility model, meaning the business retains ultimate accountability for protecting cardholder data, even when third parties are involved.

• The business is responsible for maintaining a secure environment and policies for data handling on its end.
• The vendor is responsible for the security of its outsourced services.

To Maintain Compliance, the Business Must:

• Have clear contracts that define each party's security roles.
• Regularly review the vendor's AOC.
• Ensure that no cardholder data is stored or handled insecurely within its own systems.

Outsourcing can reduce the scope of a company’s audit, but it doesn't transfer the entire compliance burden. If a vendor has a breach, the business can still be held liable if it failed to perform proper due diligence.

Simplify Your RoC Audit

GRSee guides you through every stage of the RoC process, ensuring compliance without unnecessary stress.

Contact Our Experts

» GRSee can support your efforts to strengthen your security by building a robust PCI DSS strategy, beyond compliance

PCI DSS 4.0 and RoC Audits

PCI DSS 4.0 significantly changes how RoCs are conducted by shifting the focus from a one-time assessment to sustained, continuous compliance. Auditors now look for evidence that controls are functioning effectively throughout the year, not just at the time of the audit.

A key change is the introduction of a customized approach, which allows organizations to use alternative security methods if they can justify their effectiveness. While this offers flexibility, it also creates new risks.

It requires more detailed documentation, testing, and justification, which can be challenging and complex for organizations to manage. The new version's more granular requirements necessitate deeper inspections and interviews from QSAs.

» Learn more about the key changes in PCI DSS 4.0 requirements and how it can affect your business

How GRSee Consulting Can Help

A PCI compliance audit is complex, detailed, and often intimidating—but you don’t need to navigate it alone. At GRSee, we bring hands-on expertise to guide organizations through every stage of the RoC process. From scoping and preparation to remediation and final submission, our Qualified Security Assessors ensure nothing gets overlooked.

We help you avoid costly missteps, keep your stakeholders satisfied, and maintain trust in your payment systems. If a RoC is in your future, let us help you approach it with confidence and clarity.

» Get started with GRSee’s PCI DSS solutions to simplify your security strategy