Now Switzerland
http://www.thepaypers.com//e-invoicing-scf-e-procurement/switzerland-to-roll-out-e-invoicing-in-the-administration-in-2016/757585-24
But Denmark - true Vikings - made e-invoicing mandatory already in 2006.
Important to remember that huge cost savings are enabled in all sectors and that especially the SME-sector can easily move to automated accounting, VAT-reporting etc - once their banks provide e-invoicing portals (can external single-sign-on e-banking integrated
external white label cloud service).
Being one of some 20 million EU-microenterprises myself I am still surprised at how easy it is for me to send the demanded (already mostly mandatory e-invoices) to my customers. In Nordea's netbank service in Finland it goes as follows in the easiest case
(repeat customer - new customer takes a few more clicks): 1. click copy previous invoice, 2. click change invoice number 3. click change amount delivered 4. click send.
Could it be easier?