Amex Anti-Steering Rules Lawsuit: 2026 Full Guide

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The amex anti-steering rules lawsuit challenges American Express policies that stop merchants from guiding customers toward cheaper payment options. These rules have quietly raised prices for millions of shoppers and cost businesses billions in unnecessary fees.

In 2026, this legal battle is heating up again. New claims are being filed. Settlement discussions are gaining momentum.

This article breaks down what the anti-steering rules actually do, who can join the lawsuit, what kind of payouts to expect, and every major development this year. If you own a business that accepts Amex, or if you are a consumer tired of inflated prices, this fight directly affects your wallet.

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Here is a number worth knowing: American Express charges merchants between 2.5% and 3.5% per transaction. That is often the highest rate in the industry.

Amex Anti-Steering Rules Lawsuit Overview

The amex anti-steering rules lawsuit is a series of legal actions accusing American Express of forcing merchants to hide the true cost of accepting Amex cards. At its core, plaintiffs argue that Amex violated federal antitrust law by preventing businesses from recommending cheaper payment options to customers.

When a merchant signs up to accept American Express, they agree to Amex’s non-discrimination provisions (NDPs). These contract clauses prohibit the merchant from telling a customer, “Hey, we’d prefer you use Visa because it costs us less.”

That might sound like a minor business restriction. But multiply it across millions of transactions and thousands of merchants, and you get an artificial system where the most expensive card network faces zero competitive pressure to lower its fees.

The legal arguments center on the Sherman Antitrust Act. Plaintiffs say Amex used its market power to eliminate price competition at the point of sale.

The DOJ originally brought a case against Amex in 2010. That case went all the way to the Supreme Court. Private merchant lawsuits have continued ever since, and 2026 marks a new chapter.

Amex Anti-Steering Lawsuit Update for 2026

As of 2026, the Amex anti-steering lawsuit is in an active litigation phase with several new developments shaping the case. Multiple merchant groups have filed renewed claims, and courts are reconsidering how anti-steering provisions affect competition.

One of the biggest shifts this year involves class certification motions. Merchant plaintiffs are pushing to certify broader classes of businesses, which would dramatically increase the number of eligible claimants if the case reaches a settlement or verdict.

Courts are expected to hold key hearings in mid-2026. These hearings will determine whether recent changes to Amex’s merchant agreements have actually fixed the anti-competitive behavior or simply repackaged the same restrictions under different language.

The DOJ continues to monitor the situation. Regulatory pressure from the Federal Trade Commission is adding a new layer of scrutiny to card network practices.

• New class certification motions filed in early 2026
• Courts reviewing whether Amex modified its NDPs sufficiently
• FTC increased oversight of card network merchant agreements
• Merchant trade groups publicly supporting expanded litigation

Amex has maintained that its policies are legal and benefit cardholders. But the legal momentum in 2026 is clearly tilting toward the merchants.

What Are Amex Anti-Steering Rules?

Amex anti-steering rules are contractual provisions that prohibit merchants from encouraging customers to use a different credit card or payment method at checkout. These rules are embedded in the merchant acceptance agreements that businesses sign when they agree to take American Express.

Think of it this way. Imagine you run a restaurant, and one of your suppliers charges 30% more than the others but forbids you from telling diners about the cheaper alternatives. That is essentially what Amex’s anti-steering rules do.

Under these provisions, a merchant cannot:

• Tell a customer that Amex costs the business more than Visa or Mastercard
• Offer a discount for using a different card brand
• Express a preference for any other payment method
• Post signage comparing card acceptance costs

The rules were designed to protect the Amex brand experience. American Express argued that its premium service and cardholder rewards justified higher merchant fees. But critics say the rules killed any chance of fee-based competition among card networks.

These restrictions became the foundation of the entire anti-steering lawsuit.

Key Takeaway: Amex’s anti-steering rules block merchants from directing customers to cheaper payment options, which plaintiffs argue violates antitrust law and keeps merchant fees artificially high.

Amex Anti-Steering Rules Explained in Plain Language

Amex anti-steering rules, explained simply, mean that once you agree to accept American Express, you lose the right to tell your customers that another card would save your business money. The rules silence merchants at the exact moment when price competition should happen: the checkout counter.

Here is why that matters. Visa might charge a merchant 1.5% to 2.4% per swipe. Amex often charges 2.5% to 3.5%. On a $100 purchase, that is a difference of a full dollar or more.

If a gas station could say, “Use your Visa and we will knock off two cents per gallon,” that would create real competition. Card networks would feel pressure to lower their fees. But Amex’s rules make that conversation illegal under the merchant contract.

The “two-sided market” theory complicates things. Amex argues it operates in a market where it must balance the interests of cardholders (who get rewards) and merchants (who pay fees). The company says you cannot just look at the merchant side of the equation.

But from the merchant’s perspective, the math is straightforward. They pay more, and they cannot do anything about it. They cannot even talk about it.

The rules create a system where the most expensive option faces zero price pressure. Economists call this kind of arrangement anti-competitive. The courts have been wrestling with whether to call it illegal.

Who Qualifies for the Amex Anti-Steering Lawsuit?

Businesses that accepted American Express as a payment method and paid higher merchant discount fees due to anti-steering restrictions may qualify for the Amex anti-steering lawsuit. The eligibility criteria focus on merchants, not individual consumers, though consumers are indirectly affected.

To be eligible, a business generally must meet these conditions:

• Accepted American Express cards during the relevant litigation period
• Operated within the United States
• Signed a merchant agreement containing anti-steering or non-discrimination provisions
• Paid merchant discount rates to Amex or its acquiring partners

The relevant time period varies by case. Some claims cover transactions dating back to 2010 or earlier. Others focus on more recent periods through 2024 or 2025.

Small businesses qualify just as much as large retailers. A corner bakery that processes $500 per month in Amex transactions has the same legal standing as a national chain processing millions.

If your business accepted Amex and felt locked into paying those premium fees without any ability to steer customers elsewhere, you likely fall within the affected class.

Is There an Amex Anti-Steering Class Action?

Yes, there are active class action components to the Amex anti-steering litigation, with merchant groups seeking to represent broad classes of businesses affected by the non-discrimination provisions. Class certification has been one of the most contested issues in the case.

A class action allows thousands of merchants to band together rather than each filing individual lawsuits. This is important because most small businesses could never afford to sue American Express on their own. The class action mechanism levels the playing field.

In previous rounds of litigation, courts have both granted and denied class certification depending on the specific claims. The challenge is proving that Amex’s anti-steering rules harmed all merchants in a common way, rather than affecting each business differently based on its size, transaction volume, or competitive situation.

As of 2026, several class certification motions are pending. Merchant plaintiffs argue that the harm is universal: every merchant that signed an NDP agreement was equally silenced at the point of sale.

• Opt-out class actions may allow merchants to automatically be included unless they choose to leave
• Opt-in class actions would require merchants to actively join
• Individual lawsuits by large retailers continue alongside the class actions

The structure of the class action matters enormously for payouts. A certified class with millions of merchants would spread any settlement across more claimants but would also increase the total settlement pressure on Amex.

Key Takeaway: Merchants who accepted Amex and signed agreements with non-discrimination provisions are the primary plaintiffs, and class certification decisions in 2026 will determine how many businesses can participate.

Amex Anti-Steering Lawsuit Payout Estimates

Payout estimates for the Amex anti-steering lawsuit range widely, from a few hundred dollars for small merchants to potentially millions for large retailers, depending on transaction volume and the final settlement or verdict amount. No official payout amounts have been confirmed for 2026 claims.

Here is the honest truth: predicting exact payouts in antitrust litigation is difficult. But we can look at comparable cases to build reasonable estimates.

The Visa/Mastercard swipe fee settlement, which addressed similar anti-steering and interchange fee concerns, initially offered approximately $5.54 billion to merchants. That number was later modified through appeals and renegotiation.

If the Amex case follows a similar pattern, the total settlement fund could range between $1 billion and $4 billion. Amex’s market share is smaller than Visa and Mastercard combined, which would reduce the total pool.

These are rough projections based on how antitrust settlements typically distribute funds. The actual formula would depend on each merchant’s total Amex transaction volume during the class period and the fee differential between Amex and competing networks.

Some merchants may receive more if they can prove they lost customers or revenue because they could not steer shoppers to cheaper payment options.

Amex Anti-Steering Rules Settlement Amount Projections

The total Amex anti-steering rules settlement amount has not been finalized, but legal analysts project a range between $1.5 billion and $4 billion based on the scope of affected merchants and the precedent set by the Visa/Mastercard settlement. These projections assume the case reaches a negotiated resolution rather than a full trial verdict.

Several factors will drive the final number.

First, the size of the certified class matters. If the court certifies a broad class covering all U.S. merchants who accepted Amex over a 10-to-15-year period, the settlement pressure on American Express increases dramatically.

Second, the fee differential is a key calculation. The gap between what Amex charges and what Visa or Mastercard charges on comparable transactions provides the basis for calculating damages. That gap has historically been between 0.5% and 1.5% per transaction.

Third, treble damages under antitrust law could multiply the actual harm by three. If a court finds willful antitrust violations, the settlement amount could jump significantly.

• Total U.S. Amex merchant transaction volume exceeds $500 billion annually
• Even a small percentage in fee overcharges adds up to billions over a decade
• Treble damages under the Sherman Act could triple calculated harm
• Attorney fees typically consume 25% to 33% of any class settlement

Amex would likely push for a settlement that includes future conduct changes rather than a massive lump-sum payment. That means the final deal might combine cash payments with fee reductions or modified merchant agreements.

Amex Merchant Anti-Steering Settlement Details

The Amex merchant anti-steering settlement is still in the negotiation and litigation phase as of 2026, with no final settlement agreement publicly filed. Both sides have participated in mediation sessions, but a completed deal has not been announced.

What we know so far about the expected settlement structure:

Any settlement will likely include two parts. The first is a monetary fund distributed to eligible merchants based on their Amex transaction history. The second is injunctive relief, which means changes to Amex’s actual business practices going forward.

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On the monetary side, merchants would submit claims showing their total Amex processing volume during the class period. A claims administrator would then calculate each merchant’s share of the fund using a predetermined formula.

On the injunctive relief side, merchants hope the settlement would permanently prohibit Amex from enforcing anti-steering rules. This would let businesses openly tell customers about the cost differences between card networks.

Past settlements in similar cases took two to four years from initial agreement to final payment distribution after court approval and appeals.

Key Takeaway: While no final settlement exists yet, projections based on comparable cases suggest a multi-billion-dollar fund with payments distributed based on each merchant’s Amex transaction volume over the class period.

How to File an Amex Anti-Steering Claim

To file an Amex anti-steering claim, merchants will need to submit documentation proving they accepted American Express and paid merchant discount fees during the class period, typically through a court-approved claims process administered after any settlement is finalized. No claims portal is currently open for 2026.

Here is the typical process for these kinds of antitrust settlements:

Step 1: Wait for class certification and settlement approval. The court must first certify the class and approve any settlement. Jumping the gun will not help.

Step 2: Receive a class notice. If you are an identified class member, you will receive a mailed or emailed notice with instructions. This notice will include deadlines and a claims form.

Step 3: Gather your records. Pull together your Amex merchant processing statements. You will need to show transaction volume, fee rates, and the time period you accepted Amex.

Step 4: Submit your claim form. Fill out the form with your business information and attach supporting documents.

Step 5: Wait for review and payment. A claims administrator reviews submissions and calculates payouts.

The most important thing you can do right now is preserve your Amex merchant processing records. Even statements from years ago could prove valuable when the claims process opens.

American Express Anti-Steering Lawsuit 2026 Timeline

The American Express anti-steering lawsuit timeline for 2026 includes several critical milestones, from class certification hearings to potential mediation sessions and pre-trial motions. The case is actively moving through the federal court system.

Here is the projected timeline based on court filings and legal analysis:

These dates are approximate. Antitrust cases of this size regularly experience delays. A single motion can push the schedule back by months.

If mediation succeeds in late 2026, a preliminary settlement could be announced before the end of the year. But final approval, appeals, and distribution would stretch into 2027 or 2028.

The class certification decision is the biggest domino. If the court grants a broad class, Amex faces enormous financial exposure, which typically accelerates settlement talks. If the court narrows or denies class certification, individual lawsuits continue but with less collective bargaining power.

Merchants should monitor developments closely through the remainder of 2026. The second half of the year is when the most significant action is expected.

Amex Anti-Steering Supreme Court Ruling

The Amex anti-steering Supreme Court ruling came in June 2018 in the case of Ohio v. American Express Co., where the Court ruled 5-4 in favor of American Express, finding that its anti-steering provisions did not violate antitrust law when analyzed under the two-sided market framework. This decision remains one of the most debated antitrust rulings in recent history.

The majority opinion, written by Justice Clarence Thomas, held that credit card networks operate in a “two-sided market.” The Court said you cannot just look at the impact on merchants. You must also consider the benefits to cardholders, including rewards programs and fraud protection.

Under this framework, the Court concluded that the government failed to prove that Amex’s anti-steering rules harmed competition in the overall market. The fact that merchants paid higher fees was offset, in the Court’s view, by the value Amex delivered to cardholders.

Justice Stephen Breyer wrote a sharp dissent. He argued that the majority’s two-sided market theory created a loophole that would make it nearly impossible to challenge anti-competitive behavior by platform businesses.

• Ruling: 5-4 in favor of American Express
• Date: June 25, 2018
• Key Concept: Two-sided market analysis
• Majority: Thomas, Roberts, Kennedy, Alito, Gorsuch
• Dissent: Breyer, Ginsburg, Sotomayor, Kagan

That ruling did not end the fight. Private merchant lawsuits continued on different legal theories. The 2026 claims attempt to work around the Supreme Court’s framework by presenting new evidence and different arguments about market harm.

Ohio v. American Express and Anti-Steering

Ohio v. American Express (2018) is the landmark case that shaped the legal battlefield for every anti-steering lawsuit that followed. Seventeen states, led by Ohio, joined the DOJ in arguing that Amex’s merchant restrictions were illegal under the Sherman Act.

The case originated in 2010 when the Department of Justice sued American Express, Visa, and Mastercard over their anti-steering provisions. Visa and Mastercard settled quickly. American Express chose to fight.

At trial, Judge Nicholas Garaufis in the Eastern District of New York ruled against Amex in 2015. He found clear evidence that the anti-steering rules harmed merchant competition and led to higher prices for consumers.

The Second Circuit reversed that decision in 2016, applying the two-sided market theory. The Supreme Court then upheld the Second Circuit’s reversal in its controversial 2018 ruling.

| Stage | Year | Outcome |
|—|—|
| DOJ files suit | 2010 | Case begins |
| Trial court ruling | 2015 | Amex loses |
| Second Circuit appeal | 2016 | Amex wins reversal |
| Supreme Court decision | 2018 | Amex wins 5-4 |
| Ongoing private litigation | 2019 to present | Multiple merchant suits continue |

The Ohio v. American Express ruling did not bar all future challenges. It set a high bar for plaintiffs, but it left room for claims based on different market definitions, new evidence, or different time periods.

The 2026 merchant lawsuits are carefully designed to work within, or around, the Supreme Court’s framework.

Key Takeaway: The 2018 Supreme Court ruling in Ohio v. American Express favored Amex using the two-sided market theory, but private merchant lawsuits have continued by presenting new arguments and targeting different aspects of Amex’s practices.

Amex vs. Merchants: Anti-Steering Litigation History

The litigation history between Amex and merchants over anti-steering rules spans more than 15 years of court battles, government enforcement actions, and private lawsuits. This is not a single case. It is a long-running legal war.

The fight started well before the DOJ’s 2010 lawsuit. Merchants had complained about card network steering restrictions since at least the early 2000s. The National Retail Federation was among the first organizations to publicly challenge these practices.

After the 2018 Supreme Court ruling, many expected the anti-steering fight to die down. It did not. Merchants pivoted to new legal strategies.

Key litigation milestones:

• 2003 to 2005: Early merchant complaints about card network restrictions
• 2010: DOJ sues Amex, Visa, and Mastercard
• 2011: Visa and Mastercard settle; Amex fights on
• 2015: Trial court finds Amex anti-steering rules illegal
• 2016: Second Circuit reverses trial court
• 2018: Supreme Court sides with Amex 5-4
• 2019 to 2023: New private merchant lawsuits filed
• 2024 to 2025: Renewed class certification efforts
• 2026: Active litigation with new evidence and arguments

Each wave of litigation has refined the legal arguments. Early cases focused broadly on antitrust harm. Later cases zeroed in on specific merchant segments, particular fee structures, and measurable consumer price increases.

American Express has consistently argued that its business model benefits all parties and that steering rules protect the cardholder experience. The company has won major battles but has not won the war.

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How Amex Anti-Steering Rules Affect Consumers

Amex anti-steering rules affect consumers by indirectly raising the prices they pay for goods and services, because merchants who cannot steer customers to cheaper payment methods absorb higher card fees and pass those costs along through higher shelf prices. You pay more even if you never use an Amex card.

That is the part most articles miss. This is not just a merchant problem.

When a store pays 3.5% to process an Amex transaction instead of 2% for a Visa transaction, the store does not eat that difference out of kindness. The cost gets baked into the price of everything on the shelf.

A 2023 Federal Reserve study estimated that merchant card fees add between $700 and $1,000 per year to the average American household’s costs through higher retail prices. Amex’s premium fees contribute a disproportionate share of that burden.

Here is the kicker: consumers who pay with cash or debit cards subsidize the rewards that Amex cardholders earn. A cash-paying customer at a grocery store pays the same inflated price as the person swiping their Platinum card and earning triple points.

If anti-steering rules were eliminated, merchants could offer discounts for cheaper payment methods. That would create real price competition and potentially lower costs for everyone.

Amex Merchant Fee Lawsuit in 2026

The Amex merchant fee lawsuit in 2026 focuses on the argument that American Express has continued to maintain anti-competitive fee structures even after modifying some of its merchant agreement language. Merchants argue that the practical effect of Amex’s policies remains unchanged.

Amex made some adjustments to its merchant agreements after the 2018 Supreme Court decision. The company softened certain language in its non-discrimination provisions. It allowed merchants to display card network logos in certain ways and to generally express preferences for payment methods.

But merchants say these changes are cosmetic. The core restriction remains: a merchant still cannot meaningfully steer a customer away from Amex at the point of sale without risking contract termination.

The 2026 lawsuit wave focuses on three main arguments:

• Continued economic harm: Merchants still pay premium rates with no ability to redirect customers
• Modified but not eliminated NDPs: Agreement changes did not create real competitive freedom
• New economic evidence: Updated data shows the ongoing price impact on merchants and consumers

Small and mid-size merchants are the most vocal plaintiffs in this round. They argue that while large retailers can absorb premium fees, smaller businesses face margin destruction from Amex’s pricing.

Key Takeaway: The 2026 merchant fee lawsuits argue that Amex’s post-2018 agreement modifications were superficial and that the same anti-competitive harm continues today, backed by new economic evidence and broader class participation.

American Express Surcharge Lawsuit Explained

The American Express surcharge lawsuit focuses on whether merchants have the right to add a surcharge to Amex transactions to offset the higher processing fees they pay compared to other card networks. Amex has historically prohibited or restricted surcharging in its merchant agreements.

Surcharging is exactly what it sounds like. If it costs a merchant an extra 1% to process an Amex card versus a Visa card, the merchant would add that 1% to the customer’s bill. The customer then decides whether the convenience of using Amex is worth the extra cost.

This is the purest form of price transparency. And Amex has fought it aggressively.

In some states, laws now permit surcharging on credit card transactions. A patchwork of state regulations has emerged:

• States allowing surcharges: California, New York (with restrictions), Texas, Florida, and most others
• States prohibiting surcharges: Connecticut, Massachusetts, and a handful of others
• Amex policy: Historically restricted surcharging beyond what state law requires

The surcharge lawsuit overlaps significantly with the broader anti-steering litigation. Both cases target the same fundamental issue: Amex’s efforts to prevent merchants from making its high fees visible to consumers.

If the surcharge lawsuit succeeds, merchants could transparently pass Amex’s premium fees directly to the cardholders who benefit from Amex’s rewards programs. That would end the cross-subsidy that currently burdens cash and debit card users.

Credit Card Anti-Steering Rules and Antitrust Law

Credit card anti-steering rules raise fundamental antitrust questions about whether payment networks can use their market power to suppress price competition at the point of sale. The legal framework governing these rules sits at the intersection of antitrust law, contract law, and financial regulation.

The Sherman Antitrust Act of 1890 prohibits agreements that unreasonably restrain trade. Anti-steering provisions arguably do exactly that: they restrain merchants from engaging in competitive behavior that would benefit consumers.

But the analysis is not that simple. Under the Supreme Court’s 2018 ruling, courts must apply a “rule of reason” analysis to two-sided markets. This means plaintiffs must prove that the anti-competitive harm on the merchant side outweighs any pro-competitive benefits on the cardholder side.

That is a high bar. But it is not an impossible one.

Legal scholars have identified several ways the 2026 lawsuits are attacking this framework:

• Narrower market definition: Defining the relevant market as merchant acceptance services only, not the entire two-sided platform
• New economic models: Presenting data that shows net harm even when cardholder benefits are included
• Changed market conditions: Arguing that the card network market has evolved since 2018 and the old framework no longer fits
• International precedents: Pointing to rulings in the EU, Australia, and Canada that have rejected anti-steering rules

The outcome of the 2026 litigation could reshape how antitrust law applies to all platform businesses, not just credit card networks. Tech companies, app stores, and marketplace platforms are watching this case closely because the same two-sided market arguments apply to their business models.

Key Takeaway: The Amex anti-steering litigation sits at the cutting edge of antitrust law, and the 2026 cases are deploying new economic arguments and narrower market definitions to overcome the Supreme Court’s 2018 two-sided market framework.

Frequently Asked Questions

What is the Amex anti-steering rules lawsuit about?

The lawsuit accuses American Express of forcing merchants to agree to anti-steering provisions that prevent them from guiding customers to cheaper payment options.
These rules allegedly violate antitrust law by eliminating price competition among card networks.
Merchants argue the rules result in higher fees that get passed to all consumers through inflated retail prices.

Can consumers join the Amex anti-steering lawsuit?

Consumers cannot directly join the current anti-steering lawsuits because the claims are filed by merchants.
However, consumers benefit indirectly if the case succeeds, because lower merchant fees would likely reduce retail prices.
Some consumer advocacy groups have filed supporting briefs on behalf of shoppers.

How much money could merchants get from the Amex settlement?

Settlement amounts have not been finalized, but projections based on comparable cases suggest payouts ranging from $100 for small businesses to $500,000 or more for large retailers.
The total settlement fund could range between $1.5 billion and $4 billion.
Individual payments depend on each merchant’s Amex transaction volume during the class period.

When will the Amex anti-steering lawsuit be resolved?

Key hearings are expected in mid-to-late 2026, with a potential settlement announcement possible by year-end.
If the case goes to trial, a resolution may not come until 2027 or later.
Final payment distribution typically takes 12 to 24 months after settlement approval.

What did the Supreme Court decide about Amex anti-steering rules?

In June 2018, the Supreme Court ruled 5-4 in favor of American Express in Ohio v. American Express Co.
The Court applied a two-sided market analysis and found that the government failed to prove overall competitive harm.
That ruling did not end all litigation; private merchant lawsuits have continued on different legal theories.

What to Do Next

The Amex anti-steering rules lawsuit is one of the most important antitrust cases in the payment industry right now. If you are a merchant, preserve your Amex processing statements and watch for class action notices.

Stay informed as 2026 unfolds. The decisions made this year will determine whether billions in compensation reach affected businesses.

Check back for updates on class certification, settlement talks, and filing deadlines as they are announced.

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Never Miss a Lawsuit Update

Mark Lawfold as a Preferred Source so you never miss a settlement deadline or new filing.