Missouri Credit Card Surcharge Laws

Missouri takes a business-friendly approach to credit card surcharging, allowing merchants to pass processing costs to customers without state-level restrictions. The state has no surcharge statute of its own and relies on federal regulations and card network rules to govern standard surcharge practices.

Unlike states with complex pricing transparency laws or outright surcharge bans, Missouri keeps compliance straightforward. The state has no merchant surcharge statute — its only convenience fee provision applies to lenders collecting loan payments, not to retail merchants.

Legal Disclaimer: This information is for reference only and does not constitute legal advice. Consult with an attorney before implementing surcharge programs, as federal rules and card network requirements still apply.

Is Credit Card Surcharging Legal in Missouri?

Yes, credit card surcharging is legal in Missouri. The state does not prohibit businesses from adding surcharges to credit card transactions, allowing merchants to implement these fees according to federal guidelines and card network policies.

Missouri's permissive approach means businesses can add surcharges to credit card transactions without navigating complex state-specific requirements. A 2013 bill that would have banned surcharging (SB 354) failed, and no merchant surcharge statute has passed since.

What's allowed in Missouri

Missouri businesses can implement credit card surcharges under these conditions:

• Standard surcharge practices - adding fees to credit card transactions following federal rules
• Convenience fee programs - charging fees for alternative payment channels with proper disclosure
• Network compliance - adhering to card network caps (3% for Visa, 4% for Mastercard)
• Cost-based pricing - ensuring surcharges do not exceed actual processing expenses
• Clear customer notification - providing disclosure as required by card network rules

What's not allowed in Missouri

Missouri businesses must avoid these prohibited practices:

• Surcharging debit cards - prohibited by card network rules in every state
• Inadequate convenience fee disclosure - failing to provide notice required by card network rules
• Exceeding processing costs - surcharges cannot generate profit beyond actual expenses
• Store-branded card fees - cannot surcharge customers using the business's own credit cards
• Excessive amounts - surcharges above card network caps (3% for Visa, 4% for Mastercard)

Missouri's Convenience Fee Rule for Loan Payments

Missouri's only convenience fee statute is narrow. RSMo § 408.140.1(11), added in 2024, applies to lenders collecting loan payments — not retail merchants — and permits a convenience fee under these terms:

• Alternative payment channel - the loan payment is made remotely rather than face-to-face
• Notice to the payer - the borrower must be notified of the fee
• Fixed or flat amount - the fee must be a set amount, not a percentage of the payment
• Variation by payment method - the flat amount may differ depending on how the borrower pays

For retail merchants adding card surcharges, this lending statute does not apply — disclosure obligations come from card network rules instead.

Penalties for non-compliance in Missouri

Missouri businesses face enforcement primarily through federal and card network channels rather than state penalties:

Card Network Violations: Visa, MasterCard, and other networks can impose fines ranging from $1,000 to $1 million for merchants violating surcharge rules, including improper disclosure or excessive fees.

Network Enforcement: Businesses exceeding the card networks' surcharge caps (3% for Visa, 4% for Mastercard) or improperly surcharging debit cards may face action from the card networks.

Consumer Protection: Missouri consumers can file complaints about deceptive business practices through the state's consumer protection system.

To report surcharge violations or file consumer complaints in Missouri, contact:

• Missouri Attorney General Consumer Protection Hotline
• Phone: 1-800-392-8222
• Email: consumer.help@ago.mo.gov
• Online: Consumer complaint form
• Address: P.O. Box 899, Jefferson City, MO 65102

Is Debit Card Surcharging Legal in Missouri?

No — card network rules prohibit debit card surcharging in Missouri and all 50 states. These network rules bar surcharges on debit card transactions regardless of how they are processed (PIN or signature).

This card network prohibition applies to all debit transactions including:

• Traditional PIN debit cards
• Signature debit transactions processed like credit
• Prepaid debit cards
• FSA/HSA debit cards

Missouri businesses must ensure their payment systems properly identify card types to avoid accidentally surcharging prohibited debit transactions.

Surcharging vs. Cash Discounts in Missouri

Missouri statutes don't draw these lines — the distinctions come from federal law and card network rules — but businesses still have flexibility in how they structure pricing:

Credit Card Surcharges: Adding fees to credit card transactions above a base price. Legal in Missouri following federal and card network rules.

Cash Discounts: Offering reduced prices for cash payments while maintaining higher listed prices for credit cards. Generally faces fewer regulatory restrictions.

Convenience Fees: Charges for specific payment channels outside normal business operations, governed by card network rules; Missouri's own convenience fee statute covers only lenders collecting loan payments.

The choice between these approaches can affect compliance requirements and customer perception, with cash discounts often viewed more favorably by consumers.

Types of Businesses That Must Follow Surcharge Rules in Missouri

The surcharge rules that apply in Missouri come from federal law and the card networks, and they cover businesses broadly:

Private Businesses: Can implement surcharges following federal guidelines and card network rules. Missouri imposes no additional disclosure requirements on merchants.

Government Entities: May face different restrictions, and businesses should verify specific requirements for government contract payments.

Regulated Industries: Some sectors may have additional oversight, but Missouri generally doesn't impose industry-specific surcharge limitations beyond federal requirements.