Guides to Greek invoicing and e-invoicing

B2B e-invoicing Who mandatory B2B e-invoicing in Greece applies to, the dates, the channels and what to do now. What is myDATA myDATA in plain terms: MARK, UID, transmission channels, timing and classifications. Provider or ERP The two channels to myDATA, how they differ and what mandatory e-invoicing changes. POS integration Mandatory POS interconnection with a cash register or provider: who, how it works, fines. B2G e-invoicing How to e-invoice the Greek public sector: legal basis, who must comply, the flow and the steps. Digital client book Who must keep a digital client book, what is recorded and when, and how eFluper does it for €4 a month. How to choose invoicing software The criteria that matter when you compare invoicing software in Greece, and how eFluper covers each one. Free invoicing software What free invoicing software includes in practice, and what to check before you trust it with your invoicing. Cloud vs desktop invoicing The pros and cons of cloud and installed invoicing software, and where eFluper fits. MARK The Unique Registration Number myDATA returns for every document: what it is and where it is used. UID The unique identifier calculated from each document's own data: how it is formed and what it is for. Service receipt (ΑΠΥ) The Greek service receipt (ΑΠΥ): what it is, who issues it, withholding tax and myDATA.