Greece will introduce the obligation of B2G e-invoicing from September 2023. The implementation will be carried out in stages based on the public administration to which the invoice is issued. This obligation will start by September 12,

From January 1, 2022, taxpayers in Poland and elsewhere may voluntarily use the National e-Invoice System. The e-invoicing obligation will, as a rule, come into force on July 1, 2024, while for small and medium-sized enterprises exempt