PCI DSS Compliance for Small Businesses

The Payment Card Industry Data Security Standard (PCI DSS) applies to any organization that handles credit card transactions — regardless of size. A single-person business taking cards is subject to the same standard as a large retailer.

IT-focused PCI requirements:

- Firewalls protecting systems that store or transmit cardholder data.

- Unique IDs for every person with system access.

- Encryption of cardholder data in transit over public networks.

- Antivirus and regular patching on systems connected to cardholder data.

- Restricted physical access to servers and payment terminals.

Ways to reduce compliance scope:

- Use a validated third-party payment processor that handles card data so your systems never see it.

- Do not store card numbers, CVV codes, or magnetic stripe data unless you have a documented business need.

- Segment your network so payment systems are isolated from guest Wi-Fi and general office computers.

PCI compliance is validated annually (or more often for larger transaction volumes). Non-compliance can result in fines, higher transaction fees, and loss of the ability to accept cards.