The total PCI compliance certification cost is a variable expense driven by the scale and complexity of your company’s operations. Let’s take a look at the key factors influencing your expected budgets.
Business size and merchant level
The most significant cost drivers are your business size and the corresponding merchant level. Card schemes define four levels based on the volume of annual transaction processing:
- Level 4: less than 20,000 e-commerce transactions or up to 1 million total transactions annually.
- Level 3: 20,000 to 1 million e-commerce transactions annually.
- Level 2: 1 million to 6 million transactions annually.
- Level 1: over 6 million transactions annually.
Higher levels require stricter validation requirements, especially an expensive on-site audit conducted by a Qualified Security Assessor (QSA). This can cost anything from $5,000 to over $70,000, depending on the QSA company and your scope.
Payment environment complexity
The PCI certification cost also depends on the complexity of your IT and payment environment. Businesses that store, process, and transmit cardholder data across multiple systems, locations, and third-party providers will face higher costs than those with a simpler setup.
If you run multiple servers, payment gateways, and connected APIs, you will have to account for:
- Network segmentation
- Data encryption
- Secure storage
- Monitoring
Each factor adds to the overall expense, as all hardware must be fully compliant to minimize risks.
Current security posture
Your current cybersecurity maturity level also affects the total cost of PCI DSS compliance. Companies that already have firewalls, encryption, access controls, and reliable monitoring tools in place are often halfway there. But if you start from scratch, you’ll have to invest heavily in hardware, training, and remediation.
Type of validation
The type of PCI validation required directly influences compliance costs.
There are two types:
- Self-assessment questionnaire (SAQ): Suitable for smaller merchants as a quick and inexpensive option.
- Report on compliance (ROC): A full-scale audit performed by a QSA. This process involves on-site reviews, technical testing, and documentation checks.
In most cases, an SAQ is enough for merchants of levels 4, 3, and 2. Merchants of Level 1 must be validated via an ROC conducted by a QSA.
Remediation and infrastructure upgrade costs
The implementation phase is one of the most costly options. Upgrading outdated systems, adding encryption, segmenting networks, and replacing non-compliant hardware & software are what drive the PCI DSS certification cost the most.
Legacy systems are particularly problematic, as bringing them up to PCI standards may require full replacement or virtualization. The same applies to POS terminals, payment gateways, and firewalls that lack the necessary security features. However, it all pays off in the long run due to reduced risk exposure.