You must comply with all rules set by Visa, Mastercard, American Express, and Discover, and Square can hold you responsible if you violate those rules even if you were unaware of them.
Card network rules are complex and frequently updated; unknowingly violating them could result in fines, fund holds, or account termination.
PCI DSS compliance obligations and card network rule adherence create ongoing compliance burdens for merchants; legal and compliance teams should ensure merchants have processes for monitoring card network rule updates and maintaining PCI DSS certification.
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Square's terms grant the company broad discretion to hold, delay, or withhold merchant funds for risk management reasons, which can significantly disrupt business cash flow. Merchants waive their right to participate in class action lawsuits and must resolve disputes through binding arbitration, limiting their legal remedies. You can opt out of the arbitration clause by sending written notice to Square within 30 days of first accepting the terms.