The B2B e-invoicing regime in Romania will be implemented in two phases in 2024, with new regulations and penalties being introduced through government emergency ordinance 115/2023. These changes include exemptions for simplified invoices, exports, non-resident counterparties, and B2C transactions. Furthermore, the grace period for fines has been extended until July 2024. This article will provide an in-depth look into Romania's e-invoicing regime, covering the launch phases, requirements, penalties, and the user guidance manual issued by the Ministry of Finance.