{"id":52394,"date":"2025-08-28T15:22:37","date_gmt":"2025-08-28T13:22:37","guid":{"rendered":"https:\/\/www.pikon.com\/?p=52394"},"modified":"2026-06-01T11:17:43","modified_gmt":"2026-06-01T09:17:43","slug":"poland-b2b-e-invoicing-ksef-2026-becomes-mandatory","status":"publish","type":"post","link":"https:\/\/www.pikon.com\/en\/blog\/poland-b2b-e-invoicing-ksef-2026-becomes-mandatory\/","title":{"rendered":"Poland KSeF 2026: B2B e-invoicing requirement becomes mandatory"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"52394\" class=\"elementor elementor-52394\" data-elementor-settings=\"{&quot;element_pack_global_tooltip_width&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_padding&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true}}\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-acea6aa elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"acea6aa\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-cbd8cc5\" data-id=\"cbd8cc5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-375af6c elementor-toc--minimized-on-tablet elementor-widget elementor-widget-global elementor-global-75893 elementor-global-75856 elementor-widget-table-of-contents\" data-id=\"375af6c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;exclude_headings_by_selector&quot;:&quot;.bdt-ep-advanced-icon-box-title, .no-table-of-content&quot;,&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;,&quot;h4&quot;,&quot;h5&quot;],&quot;container&quot;:&quot;.elementor-widget-theme-post-content&quot;,&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tContent\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__375af6c\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__375af6c\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__375af6c\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0751408 elementor-widget elementor-widget-text-editor\" data-id=\"0751408\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The Ministry of Finance in Poland is switching to stricter e-Invoicing requirements by making B2B e-Invoicing mandatory. Poland already introduced their interest in e-Invoicing some years ago by building the <a href=\"https:\/\/www.pikon.com\/en\/blog\/sap-solution-for-polish-b2g-e-invoicing-requirements-pef\/\">PeF platform for voluntary B2G E-Invoicing<\/a>. From now on, Poland will no longer accept paper invoices for B2B transactions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c79d36 elementor-widget elementor-widget-text-editor\" data-id=\"3c79d36\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Deadlines for Poland B2B e-invoicing KSeF 2026:<\/strong><\/h2><p>Poland&#8217;s Ministry of Finance has released updated timelines for the implementation of B2B E-invoicing. The revised schedule is as follows:<\/p><ul><li>Starting from 1st February 2026: B2B e-Invoicing becomes mandatory for large taxpayers with an annual turnover of \u20ac43 million or more.<\/li><li>Starting from 1st April 2026: B2B e-Invoicing becomes mandatory for all Polish companies with a Polish VAT registration number and foreign entities with a fixed establishment in Poland.<\/li><li>Starting from January 2027: B2B e-Invoicing becomes mandatory for micro businesses (invoices &lt; 450 PLN and sales per month &lt; 10 000 PLN)\u200b.<\/li><\/ul><p>These deadlines provide clarity and ensure a smooth transition for businesses towards adopting electronic invoicing practices in Poland.<\/p><p>For more information about the Poland B2B e-invoicing KSeF 2026, please refer to the official government website of Poland: <a href=\"https:\/\/www.gov.pl\/web\/finanse\/podsumowanie-audytu-ksef\" target=\"_new\">Link<\/a><br \/><br \/><strong>Update from 15 May 2026:\u00a0<br \/><\/strong>A draft regulation published by the Polish Ministry of Finance would require foreign businesses claiming Polish VAT refunds to include the relevant KSeF invoice reference number in their refund applications where available. The proposal further integrates KSeF into Poland\u2019s VAT compliance and administration processes.<strong><br \/><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b56904 elementor-widget elementor-widget-text-editor\" data-id=\"1b56904\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The Krajowy System e-Faktur to platform\u00a0<strong>(KSeF)\u00a0<\/strong>will be used as the national Electronic Invoicing system. This means that all electronic invoices must be exchanged through the KSeF platform for validation, ahead of being sent out to the customer.<\/p><h3>How will the KSeF\u00a0platform work?\u00a0<\/h3><p>In general, the KSeF platform will have the following functionalities:<\/p><ul><li>This platform will issue a series of notifications that will inform users of, for example, invoice submission, time stamps, invoice rejection, etc.\u00a0<\/li><li>Invoices can be searched and downloaded in the original format or in PDF format.<\/li><li>eInvoices are archived for 10 years on the KSeF platform.\u00a0<\/li><li>Invoices can be issued Online (in real-time) or via the Offline24-modus (allowing invoices to be reported the following day).<\/li><\/ul><p>On June 30th 2025, an upgraded version of the KSeF platform was announced by the Polish Ministry of Finance: <strong>KSeF 2.0.<\/strong> This new e-Invoicing system will go live in February 2026, meaning that businesses will, from then onwards, need to use KSeF for issuing, receiving, and archiving invoices electronically. A unique KSeF ID will be applied to each invoice upon submission, for easy tracking, verification, and management within the platform.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-80ed417 elementor-widget elementor-widget-heading\" data-id=\"80ed417\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What does the KSeF number consist of?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d481219 elementor-widget elementor-widget-text-editor\" data-id=\"d481219\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span class=\"EOP SCXW122606471 BCX0\" data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559685&quot;:426,&quot;335559740&quot;:259}\"><span class=\"ContentControl SCXW149883648 BCX0\" role=\"group\" aria-label=\"Rich text content control paragraph\"><span class=\"TextRun Highlight SCXW149883648 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW149883648 BCX0\">The <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW149883648 BCX0\">KSeF<\/span><span class=\"NormalTextRun SCXW149883648 BCX0\"> number is a unique number that <\/span><span class=\"NormalTextRun SCXW149883648 BCX0\">identifies<\/span><span class=\"NormalTextRun SCXW149883648 BCX0\"> an invoice in the National e-Invoice System (<\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW149883648 BCX0\">KSeF<\/span><span class=\"NormalTextRun SCXW149883648 BCX0\">). <\/span><\/span><span class=\"TextRun Highlight SCXW149883648 BCX0\" lang=\"DE-DE\" xml:lang=\"DE-DE\" data-contrast=\"auto\"><span class=\"NormalTextRun SpellingErrorV2Themed SCXW149883648 BCX0\">It<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW149883648 BCX0\">is<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW149883648 BCX0\">made<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW149883648 BCX0\">up<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW149883648 BCX0\">of<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW149883648 BCX0\">the<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW149883648 BCX0\">following<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW149883648 BCX0\">elements<\/span><span class=\"NormalTextRun SCXW149883648 BCX0\">:<\/span><\/span><\/span><span class=\"EOP SCXW149883648 BCX0\" data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559685&quot;:426,&quot;335559740&quot;:259}\">\u00a0<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74ff743 elementor-widget elementor-widget-image\" data-id=\"74ff743\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"432\" src=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/KSeF-graphic-structure-3-768x432.png\" class=\"attachment-medium_large size-medium_large wp-image-98982\" alt=\"\" srcset=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/KSeF-graphic-structure-3-768x432.png 768w, https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/KSeF-graphic-structure-3-300x169.png 300w, https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/KSeF-graphic-structure-3-1024x576.png 1024w, https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/KSeF-graphic-structure-3-1536x864.png 1536w, https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/KSeF-graphic-structure-3-600x338.png 600w, https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/KSeF-graphic-structure-3.png 1920w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-570b7c8 elementor-widget elementor-widget-text-editor\" data-id=\"570b7c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The most important updates of the new KSeF version are the following ones:<\/p><ul><li>The XML file format in which e-Invoices should be created, switches <strong>from FA (2) to FA (3)<\/strong><ul><li>The main new features of the FA (3) format are: attachment element (Zalacznik), new fields in Podmiot2 (JST, GV) and new roles for Podmiot3.<\/li><li>Other smaller features are for example the expanded optional fields for a payment link of the invoice, the KSeF payment identifier,&#8230;<\/li><li>The main structure of the FA (3) format will look like this:<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0f431a2 elementor-widget elementor-widget-image\" data-id=\"0f431a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"313\" height=\"279\" src=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/FA3-structure-1.png\" class=\"attachment-1536x1536 size-1536x1536 wp-image-98813\" alt=\"\" srcset=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/FA3-structure-1.png 313w, https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/FA3-structure-1-300x267.png 300w\" sizes=\"(max-width: 313px) 100vw, 313px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7d1a3ba elementor-widget elementor-widget-text-editor\" data-id=\"7d1a3ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>KSeF is based on a credential model, which means that authorization and authentication of a person in the system is required to issue and\/or access e-invoices. The authorization and authentication can be done in three ways, via:<ul><li>Qualified Electronic Signature (QES)<\/li><li>Trusted profile<\/li><li>API token (this can be replaced by requesting two-year KSeF issuer certificates, available from November 1st 2025)<\/li><\/ul><\/li><li>B2C invoicing through KSeF is now optional<\/li><li>Any taxpayer that wants to issue e-Invoices via the Offline24 modus, will need special approval. The requirement to request approval first, has nevertheless been postponed and all taxpayers can use the offline mode (Offline24) on a voluntary basis until the end of 2026.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bcb498 elementor-widget elementor-widget-image\" data-id=\"6bcb498\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/Poland-E-Invoicing-4-1024x576.png\" class=\"attachment-large size-large wp-image-98821\" alt=\"\" srcset=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/Poland-E-Invoicing-4-1024x576.png 1024w, https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/Poland-E-Invoicing-4-300x169.png 300w, https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/Poland-E-Invoicing-4-768x432.png 768w, https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/Poland-E-Invoicing-4-600x338.png 600w, https:\/\/www.pikon.com\/wp-content\/uploads\/2024\/04\/Poland-E-Invoicing-4.png 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d1a531 elementor-widget elementor-widget-text-editor\" data-id=\"1d1a531\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>*For more information about SAF-T Poland, please see our dedicated blogpost: <a href=\"https:\/\/www.pikon.com\/en\/blog\/saf-t-poland-requirements-and-sap-compliance-guide\/\">SAF-T Poland: Requirements and SAP Compliance Guide &#8211; PIKON SAP Consulting International<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-140ebcd e-con-full e-ecs-flex e-flex e-con e-child\" data-id=\"140ebcd\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-baacfce elementor-position-left elementor-widget__width-initial elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"baacfce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/www.pikon.com\/en\/doc\/ksef-poland-e-invoicing-structure-guide-for-2026\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1414\" height=\"2000\" src=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2025\/08\/Poland-e-invoicing_1.png\" class=\"attachment-full size-full wp-image-98565\" alt=\"\" srcset=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2025\/08\/Poland-e-invoicing_1.png 1414w, https:\/\/www.pikon.com\/wp-content\/uploads\/2025\/08\/Poland-e-invoicing_1-212x300.png 212w, https:\/\/www.pikon.com\/wp-content\/uploads\/2025\/08\/Poland-e-invoicing_1-724x1024.png 724w, https:\/\/www.pikon.com\/wp-content\/uploads\/2025\/08\/Poland-e-invoicing_1-768x1086.png 768w, https:\/\/www.pikon.com\/wp-content\/uploads\/2025\/08\/Poland-e-invoicing_1-1086x1536.png 1086w, https:\/\/www.pikon.com\/wp-content\/uploads\/2025\/08\/Poland-e-invoicing_1-600x849.png 600w\" sizes=\"(max-width: 1414px) 100vw, 1414px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\"><a href=\"https:\/\/www.pikon.com\/en\/doc\/ksef-poland-e-invoicing-structure-guide-for-2026\/\">E-invoicing structure guide for February 2026<\/a><\/h3><p class=\"elementor-image-box-description\">Find everything you need to know about the new FA(3) structured invoice format to be compliant before February 2026!\n<br><br>\n<a class=\"cta-button\" href=\"https:\/\/www.pikon.com\/en\/doc\/ksef-poland-e-invoicing-structure-guide-for-2026\/\" target=\"_blank\" rel=\"noopener\">Download<\/a><\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-dd7dd44 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dd7dd44\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-83c7fec\" data-id=\"83c7fec\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-638589c elementor-widget elementor-widget-heading\" data-id=\"638589c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">SAP's Document &amp; Reporting \nCompliance solution for Poland B2B e-invoicing<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-19ebd08 elementor-widget elementor-widget-text-editor\" data-id=\"19ebd08\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>SAP released a solution for KSeF e-Invoicing for S\/4HANA cloud 2302, S\/4HANA on Premise, and SAP ERP systems. Via SAP\u2019s solution, a legally compliant XML file can be automatically generated and sent to the KSeF platform (customer e-Invoicing), and supplier e-Invoices can be pulled into the SAP system from the KSeF portal (supplier e-Invoicing). All aspects are covered under the Document and Compliance (DRC), Cloud Edition functionality and license.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-17c444e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"17c444e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f69a65e\" data-id=\"f69a65e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b48f17b elementor-widget elementor-widget-heading\" data-id=\"b48f17b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How will the outbound (customer) Poland B2B e-invoicing KSeF 2026 solution work? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-432cea3 elementor-widget elementor-widget-text-editor\" data-id=\"432cea3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>When a source document (SD billing document or FI invoice) is created in SAP (and successfully released to accounting), an eDocument is automatically generated in the background. All e-Invoices can be managed from a central eDocument Cockpit. SAP Document and Reporting Compliance (AIF) will map the transactional data from the source document (eDocument) into the required XML format (KSeF FA(2) or FA(3)) and perform a first series of technical checks on format completeness and correctness. After submission to the KSeF platform, the status of the e-Invoice in the eDocument Cockpit will be updated, based on KSeF\u2019s validation response (approval or rejection).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2077b02 elementor-widget elementor-widget-image\" data-id=\"2077b02\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2022\/05\/SAP-Polish-B2B-invoice-process-1024x576.png\" class=\"attachment-large size-large wp-image-59567\" alt=\"SAP Polish B2B invoice process\" srcset=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2022\/05\/SAP-Polish-B2B-invoice-process-1024x576.png 1024w, https:\/\/www.pikon.com\/wp-content\/uploads\/2022\/05\/SAP-Polish-B2B-invoice-process-300x169.png 300w, https:\/\/www.pikon.com\/wp-content\/uploads\/2022\/05\/SAP-Polish-B2B-invoice-process-768x432.png 768w, https:\/\/www.pikon.com\/wp-content\/uploads\/2022\/05\/SAP-Polish-B2B-invoice-process-600x338.png 600w, https:\/\/www.pikon.com\/wp-content\/uploads\/2022\/05\/SAP-Polish-B2B-invoice-process.png 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4c99a67 elementor-widget elementor-widget-text-editor\" data-id=\"4c99a67\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>An accepted status means that the eDocument is approved by the government.\u00a0The KSeF reference number (approval number from the KSeF portal) will become available in the eDocument Cockpit. No further steps are required in case of a domestic customer, who will be able to retrieve the e-Invoice directly form the KSeF portal. In case of a foreign customer, you will need to send the e-Invoice to the customer yourself (which is also possible from the eDocument Cockpit).<\/li><li>A rejected status means that the e-Invoice requires correction. Depending on the rejection message from the government (which is also visible in the eDocument Cockpit), you can either directly correct the e-Invoice and resubmit it, or cancel the eDocument (and source document) and rebill.<\/li><\/ul><p><em>Note: KSeF solutions that are available at this moment, are applicable for the FA (2) XML format. Solutions applicable for the FA (3) XML format are announced by SAP but are still under analysis and not available yet.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dce6657 elementor-widget elementor-widget-heading\" data-id=\"dce6657\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How will the inbound (supplier) Poland B2B e-invoicing KSeF 2026 solution work? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8edc41 elementor-widget elementor-widget-text-editor\" data-id=\"f8edc41\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Your domestic suppliers will create an invoice and send it to the KSeF portal. When the KSeF portal has received and approved the document, you can pull it from the portal into your SAP eDocument Cockpit via a dedicated transaction. The e-Invoice can be displayed in the eDocument Cockpit in both XML and PDF form, and can be forwarded to an automated invoice management solution (e.g. VIM) if desired.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44ab644 elementor-widget elementor-widget-image\" data-id=\"44ab644\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"335\" src=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2023\/02\/SAP-Polish-B2B-document-process-e1675852084992-1024x335.png\" class=\"attachment-large size-large wp-image-59688\" alt=\"SAP Polish B2B document process\" srcset=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2023\/02\/SAP-Polish-B2B-document-process-e1675852084992-1024x335.png 1024w, https:\/\/www.pikon.com\/wp-content\/uploads\/2023\/02\/SAP-Polish-B2B-document-process-e1675852084992-300x98.png 300w, https:\/\/www.pikon.com\/wp-content\/uploads\/2023\/02\/SAP-Polish-B2B-document-process-e1675852084992-768x251.png 768w, https:\/\/www.pikon.com\/wp-content\/uploads\/2023\/02\/SAP-Polish-B2B-document-process-e1675852084992-600x196.png 600w, https:\/\/www.pikon.com\/wp-content\/uploads\/2023\/02\/SAP-Polish-B2B-document-process-e1675852084992.png 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-18af31c elementor-widget elementor-widget-text-editor\" data-id=\"18af31c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Note: KSeF solutions that are available as of now are applicable for the FA (2) XML format. Solutions applicable for the FA (3) XML format are announced by SAP but are still under analysis and not available yet.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3b07491 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3b07491\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e25fffb\" data-id=\"e25fffb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-498558b elementor-widget elementor-widget-heading\" data-id=\"498558b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How could PIKON help you? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5e70d1c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5e70d1c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9b5123f\" data-id=\"9b5123f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-de9879c elementor-widget elementor-widget-text-editor\" data-id=\"de9879c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>With our Competence Center for Legal Requirements, we are a strategic partner who ensures that your SAP system and business processes meet different country-specific legal requirements in the long run. We have a team of experts that combine SAP expertise and in-depth knowledge of the end-to-end legal process as well as technical requirements of e-Invoicing and e-Accounting regulations all over the world.\u00a0<\/p><p>We have gathered this experience through our many <a href=\"https:\/\/www.pikon.com\/en\/sap-document-compliance-legal-requirements\/\">SAP Document &amp; Reporting Compliance<\/a> and local implementation projects all around the world. Some examples are <a href=\"https:\/\/www.pikon.com\/en\/e-invoicing-italy-sdi-update-sap-compliance\/\">SDI in Italy<\/a>, <a href=\"https:\/\/www.pikon.com\/en\/sii-spain-sap-document-compliance-b2b-vat-reporting\/\">SII in Spain<\/a>, <a href=\"https:\/\/www.pikon.com\/en\/blog\/mexico-sap-solution-to-achieve-compliance-to-cfdi-traslado\/\">CFDI<\/a> and <a href=\"https:\/\/www.pikon.com\/en\/blog\/mexico-sap-solution-for-complemento-de-pago-e-payment-requirement\/\">Complemento de Pago<\/a> in Mexico, <a href=\"https:\/\/www.pikon.com\/en\/rtir-b2b-einvoicing-hungary-sap-document-compliance-2020-update\/\">RTIR<\/a> and EKAER in Hungary, <a href=\"https:\/\/www.pikon.com\/en\/xrechnung-germany-sap-document-compliance-b2g-einvoicing-peppol-zugferd\/\">XRechnung in Germany<\/a>, the different <a href=\"https:\/\/www.pikon.com\/en\/edelivery-note-turkey-sap-document-compliance-ecc-s4hana\/\">legal requirements in Turkey<\/a>, etc. We have also developed our own compliance SAP Add-Ons e.g. MTD VAT in the UK and the <a href=\"https:\/\/www.pikon.com\/en\/whitelist-check-poland-sap-solutions-compliance\/\">VAT Whitelist in Poland<\/a>.\u00a0\u00a0<\/p><p>Furthermore, we always keep an eye on new and changing legal requirements and inform our customers when action is needed. This ensures that your company doesn\u2019t need to follow up on all the legal requirements yourself, and you can concentrate on your daily business.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-647d014 elementor-section-height-min-height elementor-section-boxed elementor-section-height-default elementor-section-items-middle\" data-id=\"647d014\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-44ace36\" data-id=\"44ace36\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-a24a030 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a24a030\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-39c765b\" data-id=\"39c765b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e53c1cf elementor-widget elementor-widget-heading\" data-id=\"e53c1cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Schedule a web meeting<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-efc0146 elementor-widget elementor-widget-text-editor\" data-id=\"efc0146\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Do you have any further questions about Poland\u00b4s legal requirements?<\/p><p>Simply fill out the contact form or leave us a comment at the end of the article.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-080acc0 elementor-section-height-min-height elementor-section-boxed elementor-section-height-default\" data-id=\"080acc0\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-2122918\" data-id=\"2122918\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d8ef65e elementor-widget__width-initial elementor-widget elementor-widget-pikon-author-box-widget\" data-id=\"d8ef65e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"pikon-author-box-widget.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-widget-image-box elementor-position-left elementor-vertical-align-top\"><div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img decoding=\"async\" src=\"https:\/\/www.pikon.com\/wp-content\/uploads\/2023\/08\/Tanja_Nikolaus-150x150.jpg\" alt=\"Tanja Nikolaus\" title=\"Tanja Nikolaus\" loading=\"lazy\"\/><\/a><\/figure><div class=\"elementor-image-box-content\"><div class=\"elementor-image-box-title\">Tanja Nikolaus<\/div><div class=\"elementor-image-box-position\">Customer Success Manager<\/div><div class=\"elementor-image-box-phone\"><a href=\"tel:+4968137962169\"><i class=\"fas fa-phone\"><\/i> +49 (0) 681 379 62 - 169<\/a><\/div><div class=\"elementor-image-box-mail\"><a href=\"mailto:tanja.nikolaus@pikon.com\"><i class=\"fa-fw far fa-envelope\"><\/i> tanja.nikolaus@pikon.com<\/a><\/div><div class=\"elementor-image-box-description\"><p><div class=\"activecampaign-inline-container \"><div class=\"activecampaign-inline-form\">[borlabs-cookie id=\"active-campaign-email-marketing-form\" type=\"content-blocker\"]<div class='_form_284'><\/div><script type='text\/javascript' src='https:\/\/pikon.activehosted.com\/f\/embed.php?static=0&id=284&6A8050F19B6A7&nostyles=0&preview=0'><\/script>[\/borlabs-cookie]<\/div><div class=\"activecampaign-inline-button\"><a class=\"cta-button\" href=\"#\">Request a web meeting<\/a><\/div><\/div><\/p><\/div><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>KSeF will become mandatory in Poland for B2B from February 2026. Read all about it!<\/p>\n","protected":false},"author":102,"featured_media":52652,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22],"tags":[127,131,190,132],"class_list":["post-52394","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-posts","tag-e-invoicing","tag-e-invoicing-tax-reporting","tag-poland","tag-sap-document-compliance","no-featured-image-padding"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Poland KSeF 2026: B2B e-invoicing requirement becomes mandatory<\/title>\n<meta name=\"description\" content=\"Poland will mandate B2B e-invoicing via the KSeF platform starting February 2026 for large companies, and April 2026 for all others.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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