There is in the EU, at least: > Specifically, the regulation: > * caps interchange fees at 0.2% of the transaction value for consumer debit cards and at 0.

There is in the EU, at least: > Specifically, the regulation: > * caps interchange fees at 0.2% of the transaction value for consumer debit cards and at 0.3% for consumer credit cards; From https://eur-lex.europa.eu/EN/legal-content/summary/fees-for-card-based-payments.html https://eur-lex.europa.eu/EN/legal-content/summary/fees-for-... No cap on corporate cards, though.