Indiana’s credit card surcharge law is, in a word, unwritten: the state has no statute banning or specifically regulating surcharges, so merchants may add a fee to credit card transactions as long as they follow the operating rules of Visa and Mastercard and avoid deceptive pricing under Indiana’s Deceptive Consumer Sales Act. The caps, disclosures, and prohibited practices that actually govern surcharging in Indiana come from the card networks and from general consumer protection law, not from a dedicated surcharge statute.
How Much Indiana Merchants Can Surcharge
The ceiling on any surcharge is the merchant’s own processing cost. A surcharge can never exceed what the merchant actually pays to process the transaction. That rule exists to keep surcharges from becoming a profit center.
On top of that baseline, each network sets a hard cap:
- Visa: the surcharge cannot exceed the merchant’s discount rate for that specific card or 3%, whichever is lower. Visa lowered this cap from 4% to 3% effective April 15, 2023.1Visa. Surcharging Credit Cards – QA for Merchants
- Mastercard: the surcharge cannot exceed the merchant’s average effective discount rate for Mastercard credit acceptance or 4%, whichever is lower.2Mastercard. Mastercard Credit Card Surcharge Rules and Fees for Merchants
Most merchants’ processing costs land between 1.5% and 3.5%, so the actual-cost ceiling usually bites before the network cap does. A merchant paying 2.1% to process Visa transactions cannot surcharge 3% just because Visa’s cap allows it.
Surcharges do not have to be identical across card brands. Visa’s rules allow a merchant to surcharge one brand and not another, but if a merchant surcharges Visa, the terms must match those applied to any competitor brand with an equal or higher processing cost.1Visa. Surcharging Credit Cards – QA for Merchants In practice, most merchants apply the same surcharge to every credit card brand to keep things simple.
Before surcharging can start at all, Visa and Mastercard both require at least 30 days’ advance written notice to the network and to the merchant’s payment processor (the acquirer).1Visa. Surcharging Credit Cards – QA for Merchants2Mastercard. Mastercard Credit Card Surcharge Rules and Fees for Merchants A merchant who begins surcharging without that notice is out of compliance from day one, regardless of how transparent the fee is at the register.
Disclosure Rules Merchants Must Follow
Both networks require merchants to tell customers about a surcharge before the transaction happens. Signage must appear at the store’s point of entry and again at the point of sale. For online orders, the surcharge must be disclosed before the customer completes checkout.1Visa. Surcharging Credit Cards – QA for Merchants
After the sale, the surcharge must appear as a separate line item on the receipt, showing the exact dollar amount added. Mastercard requires both the amount and the fact of the surcharge to be clear on the receipt.2Mastercard. Mastercard Credit Card Surcharge Rules and Fees for Merchants Rolling the fee into the total without breaking it out is a rule violation.
Debit and Prepaid Cards Cannot Be Surcharged
Visa and Mastercard flatly prohibit surcharges on debit and prepaid card purchases. That prohibition holds even when a customer runs a debit card as “credit” at the terminal.1Visa. Surcharging Credit Cards – QA for Merchants2Mastercard. Mastercard Credit Card Surcharge Rules and Fees for Merchants
This is a network rule, not a federal statute. The Durbin Amendment regulates interchange fees and protects merchants’ right to offer discounts for different payment methods, but it does not directly address merchant-imposed surcharges.3Office of the Law Revision Counsel. 15 USC 1693o-2 – Reasonable Fees and Rules for Payment Card Transactions The ban on debit surcharges comes entirely from Visa’s and Mastercard’s operating regulations.
Cash Discounts as an Alternative
A merchant who wants to offset processing costs without dealing with the surcharging framework can offer a cash discount instead. The economic effect is similar, but the legal treatment is not. Cash discounts are legal in all 50 states, and federal law specifically protects them: the Durbin Amendment bars card networks from restricting a merchant’s ability to offer discounts for cash or check payments.3Office of the Law Revision Counsel. 15 USC 1693o-2 – Reasonable Fees and Rules for Payment Card Transactions Merchants offering cash discounts don’t have to register with card networks or give 30 days’ advance notice.
The catch is that the discount has to be real. The advertised or posted price must be the regular price, and cash customers get a reduction from that price. Posting the lower cash price as the regular price and then adding a fee for cards is functionally a surcharge, whatever the merchant calls it.
Penalties When Merchants Break the Rules
Indiana does not impose surcharge-specific penalties. Consequences come from two directions instead: state consumer protection law and the card networks.
Indiana’s Deceptive Consumer Sales Act
A merchant who hides a surcharge, fails to disclose it before checkout, or charges more than the actual processing cost can face a claim under the Deceptive Consumer Sales Act. The statute reaches any deceptive or unconscionable practice in a consumer transaction.4Justia Law. Indiana Code 24-5-0.5 – Deceptive Consumer Sales
A consumer who sues over an uncured deceptive act can recover actual damages or $500, whichever is greater. If the court finds the act was willful, damages can rise to three times the actual loss or $1,000, whichever is greater, plus reasonable attorney’s fees. The court can also void the contract or order restitution.5Indiana General Assembly. Indiana Code Title 24, Article 5, Chapter 0.5, Section 24-5-0.5-4 – Actions and Proceedings Damages Treble damages may be available for senior consumers. Class actions are also permitted under the statute.
Card Network Penalties
Visa and Mastercard enforce their own surcharge rules. A merchant who surcharges debit cards, exceeds a cap, or fails to provide required disclosures can face network fines, higher processing rates, or loss of the ability to accept that card brand. For most retailers, losing Visa or Mastercard acceptance would be a business-ending event.
Where Consumers Can File a Complaint
An Indiana consumer who believes a merchant is applying undisclosed or excessive surcharges can file a complaint with the Indiana Attorney General’s Consumer Protection Division.6Attorney General of Indiana. Consumer Protection Division – File a Complaint Complaints can also go to the Consumer Financial Protection Bureau, which accepts credit card complaints and routes them to the company and to the appropriate regulator.7Consumer Financial Protection Bureau. Submit a Complaint
If a surcharge wasn’t posted before the transaction, or the amount looks far higher than typical processing costs, raise it with the merchant first. If that doesn’t resolve the issue, the Attorney General’s office is the next stop.