The credit card processing industry has a long-standing reputation problem. Several factors contribute to this, but at its core the issue stems from greed, inadequate oversight, and a regulatory environment that continues to leave small businesses exposed. Slamming, a deceptive practice that was common a decade ago, has resurfaced with more sophisticated tactics in 2026, and business owners who are unfamiliar with the scheme are getting caught again.

What Is Slamming?

The term “slamming” originated in the 1990s during deregulation of the telecommunications industry. It described the practice of switching a consumer’s long-distance phone carrier without consent. In merchant services, slamming works the same way: a sales agent misrepresents their identity or affiliation to trick a business owner into signing a new processing agreement, often without the owner realizing they are changing providers.

The most common approach is a phone call or in-person visit from someone who identifies themselves vaguely as being from “merchant services,” “your card processor,” or “the card association.” The caller says they are conducting a routine rate review, verifying account information, or correcting a billing error. Their actual goal is to get the business owner to sign paperwork or provide an authorization that initiates a switch to a new processor.

What many business owners do not realize until later is that the fine print of whatever they signed includes a multi-year contract, an expensive equipment lease, and an early termination fee that can run $500 or more. Some contracts contain liquidated damages clauses that calculate the penalty based on the remaining months of the agreement, producing cancellation costs in the thousands.

Why Slamming Is Increasing

Slamming tends to increase when regulatory enforcement weakens. The significant reduction in Consumer Financial Protection Bureau activity that began in 2025, combined with a broader policy of deregulation, removed what little deterrent existed against deceptive merchant services sales practices. The Federal Trade Commission still accepts complaints, but enforcement resources have shifted away from small-dollar commercial disputes. The result is an environment in which bad actors face minimal consequences for aggressive sales tactics.

At the same time, advances in caller ID spoofing and AI-generated voice technology have made telemarketing scams harder to detect. A call that appears to come from your current processor’s phone number and features a professional-sounding voice is far more convincing than the rough cold calls of a decade ago.

Outright slamming, where a provider forges documents or switches a merchant without any consent at all, is illegal under fraud and consumer protection statutes in every state. However, many slamming operations work in a gray area. They do not explicitly claim to be the merchant’s current processor, and they present a real contract for signature. If the business owner signs without reading the terms, the perpetrator can argue that the switch was voluntary. Courts and regulators often place the burden on the merchant for not reading what they signed, even when the circumstances were clearly deceptive.

The card processing industry has a poor track record of policing companies that use aggressive telemarketing tactics. These operations are usually independent sales organizations (ISOs) or sub-ISOs acting as resellers for a larger acquirer. The acquirer profits from the new accounts and has little incentive to investigate how they were obtained. Enforcement typically only happens when a state attorney general accumulates enough complaints to justify action, or when the operation’s reputation becomes so toxic online that the acquirer cuts ties to protect its own brand.

How to Avoid Getting Slammed

The single most important thing to understand is that your current credit card processor will not cold-call you to offer lower rates, and the card networks, Visa, Mastercard, American Express, and Discover, do not contact individual merchants about pricing. If someone calls to discuss your processing fees, it is a sales pitch. Treat it accordingly.

If a caller claims to be from your current processor, verify their identity by telling them you will call back using the customer service number printed on your processing statement. Legitimate representatives will have no objection. Anyone who resists this step or pressures you to stay on the line should be hung up on immediately.

Never sign any document, whether paper or electronic, presented by an unsolicited caller or visitor without reading the entire agreement first. Pay particular attention to the contract length, early termination fee, equipment lease terms, and the name of the company. If the document names a company you have never heard of, you are being switched to a new provider.

Train every employee who might answer the business phone or greet a walk-in sales rep. Slamming agents often target whoever picks up, and a front-desk employee who does not know the protocol can unknowingly authorize a switch.

What to Do If You Are a Victim of Slamming

If you believe you were deceived into switching processors, take the following steps as quickly as possible.

Contact the acquirer behind the contract. Most companies that engage in slamming are resellers operating under a larger acquiring bank. The acquirer’s name will appear in the contract you signed and often on your processing statement. Common acquirers include Fiserv, Elavon, Chase Payment Solutions, and Global Payments. File a formal complaint with the acquirer’s compliance department.

File complaints with Visa and Mastercard. Both card networks accept merchant complaints about unethical or illegal activity by registered ISOs and agents.

Contact your state attorney general. Individual complaints may not trigger immediate action, but when enough reports accumulate against the same company, states do investigate and bring enforcement actions.

File a report at reportfraud.ftc.gov. Even in a reduced-enforcement environment, FTC complaint data informs future regulatory priorities and can contribute to pattern-of-conduct cases.

If the contract includes an early termination fee and you want out, read our guide on how to get out of a merchant account contract without paying thousands for specific strategies.

The Bottom Line

Slamming is not new, but it is more sophisticated than it was a decade ago and the regulatory environment offers less protection than it used to. The good news is that the tactic is easy to defeat with basic awareness: verify the identity of anyone who contacts you about your processing, never sign anything without reading it, and train your staff to do the same. That alone will stop nearly every slamming attempt before it succeeds.