Yes. EU regulations can apply even if your interaction with EU customers is infrequent or incidental. Laws like the GDPR and EU consumer protection laws focus on the targeting of EU individuals, not the location of your business. Even a single sale or a subscription signup from an EU-based user may create obligations.
In practice, this means that sporadic sales might still require you to implement basic compliance processes, such as secure processing of personal data, privacy notices, clear terms of sale, and mechanisms for customers to exercise their rights (e.g., data access, correction, or deletion). Additionally, businesses that unintentionally “target” the EU — for example, by offering EU shipping, or translating content into EU languages — may face a higher expectation of compliance, even if transactions are occasional. Maintaining documentation of processing activities and customer interactions ensures that even infrequent EU transactions remain traceable and compliant.