E-Invoicing in Slovenia — ZIERDED B2B Mandate from 2028 and B2G via UJP
Slovenia's e-invoicing rules explained — ZIERDED makes structured e-invoices the only permitted invoices between businesses from 1 January 2028, with no e-mail and no clearance; B2G e-invoices through UJP have been mandatory since 2015, now under ZPJS. Timeline, legal basis, scope, e-SLOG and EN 16931 formats, the four exchange channels, the free FURS app, e-route provider registration, retention and fines.