{"id":2175,"date":"2026-10-18T13:18:07","date_gmt":"2026-10-18T11:18:07","guid":{"rendered":"https:\/\/valitool.org\/?page_id=2175"},"modified":"2026-10-18T13:38:13","modified_gmt":"2026-10-18T11:38:13","slug":"blog","status":"publish","type":"page","link":"https:\/\/valitool.org\/en\/blog\/","title":{"rendered":"Blog"},"content":{"rendered":"    <header class=\"vt-header\">\r\n      <a class=\"vt-brand\" href=\"https:\/\/valitool.org\/en\/\" aria-label=\"valitool home\"><img decoding=\"async\" src=\"https:\/\/valitool.org\/wp-content\/uploads\/valitool-website\/valitool-4629b866b0.svg\" alt=\"valitool\u00ae\"><\/a>\r\n      <nav class=\"vt-nav\" aria-label=\"Main navigation\"><a href=\"https:\/\/valitool.org\/en\/\">Validation &amp; visualisation<\/a><a href=\"https:\/\/valitool.org\/en\/consulting-training\/\">Consulting &amp; Training<\/a><a href=\"https:\/\/valitool.org\/en\/blog\/\">Blog<\/a><a href=\"https:\/\/valitool.org\/en\/careers\/\">Careers<\/a><a 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class=\"vt-hero bl-index-hero\" id=\"blog\">\n<div class=\"vt-hero-inner\">\n<div>\n<span class=\"vt-tag\">Knowledge &amp; practice<\/span>\n<h1>Insights into <span class=\"bl-nobr\">e-invoicing<\/span><\/h1>\n<p>Background, expert knowledge and practical insights into electronic invoices, validation and digital business processes.<\/p>\n<a class=\"vt-action vt-primary\" href=\"#beitraege\">Explore the articles <i data-lucide=\"arrow-right\" aria-hidden=\"true\"><\/i><\/a>\n\n<\/div>\n<img decoding=\"async\" src=\"https:\/\/valitool.org\/wp-content\/uploads\/valitool-website\/checky-sitzt-auf-einer-parkbank-und-liest-die-zeitung-news-d54747750a.svg\" alt=\"Checky sitting on a park bench reading the News newspaper\" class=\"bl-hero-checky\">\n\n<\/div>\n<svg class=\"vt-wave vt-wave-wide\" viewBox=\"0 0 1120 100\" preserveAspectRatio=\"none\" aria-hidden=\"true\"><path d=\"M0 45 C230 80 410 -25 620 5 S960 90 1120 28 L1120 100 L0 100Z\" fill=\"#bfd974\"><\/path><path d=\"M0 68 C230 103 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class=\"bl-feature\"><a class=\"bl-feature-visual\" href=\"https:\/\/valitool.org\/en\/bmf-e-invoicing-format-business-rule-content-errors\/\" tabindex=\"-1\" aria-hidden=\"true\"><img decoding=\"async\" width=\"1024\" height=\"200\" src=\"https:\/\/valitool.org\/wp-content\/uploads\/valitool-website\/valitool-gestaltung-06a1d5b13950.png\" class=\"attachment-large size-large wp-post-image\" alt=\"\" srcset=\"https:\/\/valitool.org\/wp-content\/uploads\/valitool-website\/valitool-gestaltung-06a1d5b13950.png 1024w, https:\/\/valitool.org\/wp-content\/uploads\/valitool-website\/valitool-gestaltung-06a1d5b13950-300x59.png 300w, https:\/\/valitool.org\/wp-content\/uploads\/valitool-website\/valitool-gestaltung-06a1d5b13950-768x150.png 768w, https:\/\/valitool.org\/wp-content\/uploads\/valitool-website\/valitool-gestaltung-06a1d5b13950-600x117.png 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><div class=\"bl-feature-copy\"><span class=\"bl-category\">E-Rechnung \u00b7 Deutschland<\/span><h2><a href=\"https:\/\/valitool.org\/en\/bmf-e-invoicing-format-business-rule-content-errors\/\">BMF guidance on e-invoicing: what format errors, business rule errors and content errors really mean<\/a><\/h2><p>On 15 October 2025, Germany\u2019s Federal Ministry of Finance (BMF) published guidance relevant to every business that receives or sends electronic [\u2026]<\/p><div class=\"bl-meta\"><time datetime=\"2025-10-24T07:54:22+02:00\">24.10.2025<\/time> \u00b7 10 min read<\/div><a class=\"bl-text-link\" href=\"https:\/\/valitool.org\/en\/bmf-e-invoicing-format-business-rule-content-errors\/\">Read article \u2192<\/a><\/div><\/div><\/section>\n    \n    <section class=\"bl-section\" id=\"beitraege\"><h2>All articles<\/h2><form class=\"bl-filter-bar\" method=\"get\" action=\"https:\/\/valitool.org\/en\/blog\/\"><label>Search articles<input type=\"search\" name=\"blogsuche\" value=\"\"><\/label><label>Topic<select name=\"blogthema\"><option value=\"\">All topics<\/option><option value=\"127\" >E-invoicing<\/option><option value=\"130\" >Germany<\/option><\/select><\/label><button class=\"vt-action vt-primary\" type=\"submit\">Search \u2192<\/button><\/form>\n    <div class=\"bl-grid\"><article class=\"bl-card\" data-blog-card><div class=\"bl-card-copy\"><span class=\"bl-category\">E-Rechnung \u00b7 Deutschland<\/span><h3><a href=\"https:\/\/valitool.org\/en\/bmf-e-invoicing-format-business-rule-content-errors\/\">BMF guidance on e-invoicing: what format errors, business rule errors and content errors really mean<\/a><\/h3><p>On 15 October 2025, Germany\u2019s Federal Ministry of Finance (BMF) published guidance relevant to every business that receives or sends electronic [\u2026]<\/p><div class=\"bl-meta\"><time datetime=\"2025-10-24T07:54:22+02:00\">24.10.2025<\/time> \u00b7 10 min read<\/div><a class=\"bl-text-link\" href=\"https:\/\/valitool.org\/en\/bmf-e-invoicing-format-business-rule-content-errors\/\">Read article \u2192<\/a><\/div><\/article><article class=\"bl-card\" data-blog-card><div class=\"bl-card-copy\"><span class=\"bl-category\">E-invoicing \u00b7 Germany<\/span><h3><a href=\"https:\/\/valitool.org\/en\/5-questions-mandatory-e-invoicing\/\">5 questions about mandatory e-invoicing: an overview<\/a><\/h3><p>Introduction Businesses need to determine when e-invoicing is mandatory. This decision guide is intended to help. Relevant [\u2026]<\/p><div class=\"bl-meta\"><time datetime=\"2024-07-04T22:41:06+02:00\">04.07.2024<\/time> \u00b7 1 min read<\/div><a class=\"bl-text-link\" href=\"https:\/\/valitool.org\/en\/5-questions-mandatory-e-invoicing\/\">Read article \u2192<\/a><\/div><\/article><article class=\"bl-card\" data-blog-card><div class=\"bl-card-copy\"><span class=\"bl-category\">E-invoicing \u00b7 Germany<\/span><h3><a href=\"https:\/\/valitool.org\/en\/mandatory-b2b-e-invoicing-2025\/\">Mandatory B2B e-invoicing from 2025<\/a><\/h3><p>Introduction Important changes to business-to-business (B2B) invoicing take effect on 1 January 2025. These changes affect [\u2026]<\/p><div class=\"bl-meta\"><time datetime=\"2024-07-04T21:23:51+02:00\">04.07.2024<\/time> \u00b7 1 min read<\/div><a class=\"bl-text-link\" href=\"https:\/\/valitool.org\/en\/mandatory-b2b-e-invoicing-2025\/\">Read article \u2192<\/a><\/div><\/article><\/div>\n        <\/section>\n\n<\/main>\n<div class=\"vt-footer-part\">\n<section class=\"vt-trust\" aria-label=\"Memberships and certificates\">\n<div class=\"vt-round\">\n<img decoding=\"async\" src=\"https:\/\/valitool.org\/wp-content\/uploads\/valitool-website\/valitool-validate-comply-visualise-2ba0e12b14.svg\" alt=\"valitool\u00ae \u2013 Validate. Comply. 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