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Credit Card Processing Laws for Merchants: Compliance Guide

Credit Card Processing Laws for Merchants: Compliance Guide

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Mia Smirh
Mia Jones
Emma Taylor
Ashley Roland
Oliver Scott
Alex Carter
Written by
Lily Flanigan
September 23, 2025

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Credit Card Processing Laws for Merchants: Compliance Guide

Navigating credit card processing laws and regulations can feel overwhelming for merchants, especially since the regulatory landscape is constantly changing, and most merchants aren’t experts in it to begin with. From foundational federal regulations and PCI-DSS compliance to state-specific requirements, understanding your legal obligations is crucial for protecting your business from fines, penalties, and potential shutdowns. 

This comprehensive guide breaks down the essential credit card processing laws for merchants to help them maintain compliant payment processing operations.

What you'll learn in this guide:

Let’s break down each of these categories to ensure that you have a comprehensive understanding of the current regulatory landscape. 

*Keep in mind that this article includes no legal advice. If you have questions about whether any of your specific operations or actions are in breach of any relevant regulations, we recommend you contact a lawyer. 

Federal Credit Card Processing Laws for Merchants

Law/Regulation

Enforcing Agency

Key Requirements

Penalties for Non-Compliance

Fair Credit Reporting Act (FCRA)

FTC

Accurate reporting to credit reporting agencies(CRAs), proper data maintenance, and credit dispute responsibilities

Up to $1,000 per violation

Truth in Lending Act (TILA)

CFPB

Clear disclosure of credit terms

Up to $5,000 per violation

Electronic Fund Transfer Act (EFTA)

CFPB

Error resolution, transaction receipts

Up to $1,000 per violation

Card Act of 2009

CFPB

Credit card fee limitations

Civil penalties up to $1 million

Fair Credit Billing Act (FCBA)

FTC

Protections for consumers regarding credit disputes

Up to $5,000 per violation

Fair Credit Reporting Act (FCRA)

The Fair Credit Reporting Act, as it pertains to merchants, covers the responsibilities of merchants when maintaining or transmitting data that ends up in the hands of credit reporting agencies (CRAs) like TransUnion and Equifax. As a result, it is only relevant to merchants who furnish this data. It also outlines the responsibility of merchants to perform reasonably comprehensive investigations into credit disputes made regarding credit info they furnished, and update information accordingly if the dispute is valid.

Key compliance requirements include:

  • Implement standardized policies and procedures to ensure the accuracy of data transmitted to CRAs
  • Respond to and investigate credit information disputes promptly
  • Correct any inaccurate information immediately after its discovery
  • Provide contact information, including an address, for customers to send disputes

Truth in Lending Act (TILA)

The Truth in Lending Act requires merchants offering credit or installment payment options to provide clear, standardized disclosures about credit terms to give customers the necessary clarity to perform their duties regarding their credit agreement. For payment processors, this means ensuring transparent communication about fees, interest rates, and payment terms.

Key compliance requirements include:

  • Displaying annual percentage rates (APR) prominently
  • Providing written disclosure of all fees before account opening
  • Offering three-day rescission periods for certain transactions
  • Maintaining detailed records of all credit-related communications

Electronic Fund Transfer Act (EFTA)

The Electronic Funds Transfer Act governs electronic payments, including debit card transactions and ACH payments. Since most merchants offer at least one of these payment options, they must implement specific consumer protection measures and error resolution procedures.

Key compliance requirements include:

  • Provide transaction receipts for all electronic payments
  • Establish error resolution procedures within 10 business days
  • Limit consumer liability for unauthorized transactions
  • Maintain transaction records for at least two years

Card Act of 2009

The Card Act of 2009 primarily regulates finance institutions, but it does have some notable regulations on gift card sales and transaction fees.

Key compliance requirements include:

  • Ensuring all gift cards expire no sooner than 5 years after they were purchased or loaded, whichever is later
  • Charge no dormancy fees on gift cards for the same 5-year period
  • Leverage a reputable, compliant credit card issuer for any loyalty cards or branded credit offerings

The Fair Credit Billing Act (FCBA)

The Fair Credit Billing Act (FCBA) provides consumers with dispute rights that directly impact merchant operations. Understanding these protections helps merchants implement effective chargeback management strategies.

Protections for consumers under the FCBA include:

  • 60-day dispute window from statement date
  • Provisional credit during investigation
  • Right to withhold payment during disputes
  • Protection against billing errors

Additionally, merchants must respond to chargebacks within specific timeframes and provide compelling evidence to contest disputes effectively.

Chargeback Response Timeframe by Reason

Chargeback Reason

Response Timeframe

Required Documentation

Fraud

7-10 days

Transaction records, delivery confirmation

Authorization

7-10 days

Authorization codes, signed receipts

Processing Error

7-10 days

Transaction logs, refund records

Consumer Dispute

7-10 days

Service agreements, communication records

Failing to comply with these guidelines can lead to penalties ranging from $50 to 5,000 per infraction.

PCI DSS Compliance Framework

The Payment Card Industry Data Security Standard (PCI DSS) is a set of data security standards and requirements to ensure the protection of credit and debit data from fraud and theft. It represents the most critical compliance requirement for merchants accepting credit card payments, and non-compliance can result in fines ranging from $5,000 to $100,000 monthly.

PCI-DSS recognizes four levels of merchants, and these categories are defined by their annual transaction volume. While all of the levels must comply with the same security standards, each level has its own set of validation requirements to affirm compliance, with Level 4 having the lowest and Level 1 having the highest.

PCI-DSS Level Designations

PCI Level

Transaction Volume

Validation Requirements

Level 1

6M+ annually

On-site audit by QSA

Level 2

1M-6M annually

Self-assessment questionnaire

Level 3

20K-1M annually

Self-assessment questionnaire

Level 4

Under 20K annually

Self-assessment questionnaire

The 12 PCI DSS Requirements

There are 12 requirements that PCI-DSS lays out for merchants, and each falls under a different category of data security.

Build and maintain secure networks:

1. Install and maintain firewall configurations

2. Avoid using vendor-supplied defaults for system passwords

Protect cardholder data: 

3. Protect stored cardholder data with encryption 

4. Encrypt transmission of cardholder data across open networks

Maintain vulnerability management: 

5. Use and regularly update anti-virus software 

6. Develop and maintain secure systems and applications

Implement strong access controls: 

7. Restrict access to cardholder data on a business “need-to-know” basis 

8. Assign a unique ID to each person with computer access 

9. Restrict physical access to cardholder data

Regularly monitor networks: 

10. Track and monitor all access to network resources

11. Regularly test security systems and processes

Maintain information security policy: 

12. Maintain policy addressing information security for employees

Consequences for Non-Compliance

Merchants that are determined to be in breach of PCI-DSS standards could suffer both monthly and per-instance monetary penalties, suspension/termination of payment processing privileges, public notifications of any known breaches (easily found by your potential customers), and an increased risk profile as designated by future payment processing partners.

State-Specific Payment Processing Laws

Federal standards aren’t the only credit card processing laws for merchants. Individual states have enacted additional regulations affecting payment processing operations, particularly regarding data breach notification and consumer protection. These can apply to merchants who operate out of, or sell to customers in, a given state’s jurisdiction.

The two most notable are the California Consumer Privacy Act (CCPA) and the New York SHIELD Act.

California Consumer Privacy Act (CCPA)

California's CCPA affects merchants who process payments from Californian residents. It requires explicit consent for data collection and provides opt-out mechanisms.

Key CCPA compliance requirements for merchants:

  • Provide clear privacy notices at the point of sale
  • Implement data subject access request procedures
  • Maintain records of data processing activities
  • Offer opt-out options for data sharing

New York SHIELD Act

New York's SHIELD Act expands data breach notification requirements and mandates reasonable security measures for any business handling New York residents' private information.

Compliance checklist includes:

  • Implement reasonable data security measures
  • Notify affected individuals within "without unreasonable delay"
  • Report breaches to the state attorney general within specific timeframes
  • Maintain incident response procedures

In addition to federal and state requirements, there are also industry-specific regulations to keep in mind.

Industry-Specific Compliance Requirements

Merchants in gaming, CBD, nutraceuticals, and telemedicine face additional regulatory scrutiny and compliance obligations beyond standard payment processing laws. While the individual regulations would be too complex to outline for every industry in one guide, we’ve put together a quick compliance table to help business owners in the aforementioned industries understand who regulates them on an industry-specific level so they know where to look for the necessary information.

Industry-Specific Regulation Quick Hits

Industry

Primary Regulator

Key Requirements

Additional Considerations

Online Gaming

State Gaming Commissions

Age verification, geolocation

Limited banking partnerships

CBD/Hemp

FDA, State Agencies

Product compliance, labeling

Federal banking restrictions

Telemedicine

DEA, State Medical Boards

Provider licensing, prescription rules

HIPAA compliance

Nutraceuticals

FTC, FDA

Advertising claims, labeling

Chargeback management

As a result of these more stringent regulations and the business risk factors that necessitate them, most traditional payment processors won’t work with businesses in these high-risk industries. Specialist high-risk payment processors are usually the way around this obstacle, offering high approval rates and industry-specific compliance and payment features to help bridge the gap.

Working With Compliance-Focused Partners

The payment regulatory landscape is ever-changing, and merchants in other industries shouldn’t have to bear the responsibility of staying up-to-date on their own. They can get the proper assistance by choosing specialist high-risk payment processors who prioritize compliance and provide ongoing regulatory support regardless of the industry in which their clients choose to operate. 

Look for payment partners offering:

  • Proactive compliance notifications and guidance
  • Industry-specific expertise for high-risk sectors
  • Comprehensive chargeback management and dispute resolution
  • 24/7 support for compliance-related questions
  • Regular compliance training and educational resources

Quality payment processors like SeamlessChex specialize in helping merchants navigate complex regulatory requirements while maintaining efficient operations. Their white-glove approach ensures merchants receive personalized guidance for their specific compliance needs.

Navigate Credit Card Processing Laws for Merchants with SeamlessChex

Credit card processing laws for merchants encompass a complex web of federal regulations, state requirements, and industry-specific rules that continue evolving. From PCI DSS compliance to state privacy laws, understanding these requirements protects your business from costly penalties and operational disruptions.

Get help from a high-risk specialist processor with unique experience navigating complex webs of regulations in even the most heavily regulated industries. Contact SeamlessChex today.