Spain B2B e-invoicing from 6 October 2027: what invoicing software must shipSpain's B2B e-invoicing dates are fixed: 6 Oct 2027 above EUR 8m, 2028 for all. Formats, UBL copy to AEAT, checklist.4 min read·wsystem.hashnode.devOct 22
Norway e-invoicing from 1 January 2027: what invoicing software must shipNorway's B2B e-invoice duty from 2027 for software builders: EHF / Peppol BIS 3.0, exemptions, 0192 addressing, checklist.3 min read·wsystem.hashnode.devOct 22
Poland KSeF from 1 January 2027: what invoicing software must change (fines now planned for 2028)KSeF is mandatory for every Polish business from 1 Jan 2027; fines move to 2028 (bill adopted 20 Oct). Checklist for software.4 min read·wsystem.hashnode.devOct 22
France e-invoicing: what invoicing software must fix before SMEs start issuing on 1 September 2027France's reform is live: 75% chose a platform, 20M+ invoices in a month. SMEs issue from 1 Sep 2027. Mentions, rejections, checklist.5 min read·wsystem.hashnode.devOct 20
Greece e-invoicing from 2 November 2026: what invoicing software needs to shipGreek B2B e-invoicing wave 2 starts 2 Nov 2026; ERP only in parallel until 31 Jan 2027. Timeline, provider vs ERP, MARK/QR, checklist.3 min read·wsystem.hashnode.devOct 19
