Uncertainty around A1 certificates for employees on business trips
Polish employers sending workers on foreign business trips more and more often have legitimate doubts whether they should apply for an A1 certificate for such staff. This is a document required in the case of posting of workers, confirming that they are covered by the social security legislation of the given jurisdiction. The problem mainly involves how to understand the notion of “posting” as used in European rules for coordination of social security systems, which govern the issuance of A1 certificates.
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