E-Invoicing in Sweden — B2G Peppol Mandate under Lag 2018:1277 and the B2B Inquiry
Sweden has required suppliers to send EN 16931 e-invoices to public buyers since 1 April 2019 under lag (2018:1277), supervised by Upphandlingsmyndigheten since 1 July 2026. B2B stays voluntary while inquiry Fi 2026:03 assesses a domestic mandate. Timeline, legal basis, scope, Peppol BIS Billing 3, Peppol IDs, retention and conditional fines.