Only production environment keys, certificates, and tokens from KSeF should be used in the production environment. Using test environment elements in production will cause technical errors. Production and test...
All Technology Posts
Security and Disinformation in the National e-Invoicing System: Facts, Myths, and Implementation Timeline
Press briefings addressed misinformation about the National e-Invoice System (KSeF) and aimed to provide accurate information. From February 1, 2026, the largest companies must issue invoices via KSeF; smaller companies...
5 days ago
KSeF Exemption in 2026: How to Calculate the 10,000 PLN Sales Limit and When to Apply
In 2026, businesses with monthly sales documented by invoices not exceeding 10,000 PLN (gross) are exempt from mandatory KSeF e-invoicing and can issue invoices in traditional formats. The 10,000 PLN limit does not...
5 days ago
How to Correct a Structured Invoice in KSeF Issued with an Incorrect Buyer’s NIP?
If a structured invoice in KSeF is issued with an incorrect buyer NIP, a “zeroing” corrective invoice must be issued (structured or offline), then a new invoice with the correct NIP. From February 1, 2026...
5 days ago
E-Invoicing & E-Reporting developments in the news in week 5/2026
Podcast on Spotify Follow the latest updates on E-Invoicing and Real Time Reporting on www.vatupdate.com and the LinkedIn pages on E-Invoicing/Real Time Reporting and ViDA. HIGHLIGHTS OF WEEKS 5/2026 NEW COLLECTION...
5 days ago
New Regulations on e-Invoice, Tax Procedure, and VAT Published in Official Gazette
New regulations published in “Narodne novine” issue 11/26. Includes the Rulebook on e-Invoices. Amendments to the Rulebook on the implementation of the General Tax Act. Amendments and supplements to the...
5 days ago
Transactions Exempt from Structured Invoicing in KSeF from February 2026: Official List Released
From February 1, 2026, certain transactions will not require structured invoices in the KSeF system, as specified in a new regulation by the Minister of Finance and Economy. The regulation lists cases of properly...
5 days ago
JPK VAT 2026 Changes: New Templates, KSeF Integration, Deposit System, Key Codes OFF, BFK, DI
From February 1, 2026, new JPK V7M and JPK V7K forms will be introduced, aligned with the KSeF (National e-Invoice System) and the deposit system. Important new designations: OFF (invoice without KSeF number), BFK...
5 days ago
How to Detect and Report Fake or Fraudulent Invoices in KSeF Before Payment
The introduction of the National e-Invoice System (KSeF) aims to improve tax settlements but also creates new risks of receiving false or scam invoices. Businesses cannot reject invoices in KSeF before they are assigned...
5 days ago
How to Agree on Invoice Delivery with KSeF Recipients by February 1, 2026 under VAT Law
By February 1, 2026, suppliers must agree with their contractors on how invoices issued in KSeF will be made available. Article 106gb(4) of the VAT Act requires that the method of providing invoices to recipients...
5 days ago
One Missing Document Can Cut Your Company Off from the National e-Invoicing System (KSeF)
From February 1, 2026, the National e-Invoicing System (KSeF) becomes mandatory for the largest companies in Poland. Missing a single required document can block a company’s access to KSeF, disrupting e-invoicing and...
5 days ago
Will Accounting and Correction Notes Be Issued in KSeF from February 2026?
Accounting notes (noty księgowe) are not considered VAT invoices and do not need to be issued in the KSeF system from February 2026. Corrective notes (noty korygujące) and accounting notes are different documents;...
5 days ago
Can Structured Invoices Issued in KSeF Be Cancelled After February 2026?
Structured invoices issued via KSeF cannot be annulled, including after February 1, 2026. Current practice allows annulment of unnecessary invoices only if the transaction did not occur and the invoice was not legally...
5 days ago
KSeF 2026: What Errors Go Unnoticed in Structured Invoices? Examples, Penalties, and Sanctions
From 2026, most taxpayers in Poland must issue and receive structured invoices via the KSeF system. KSeF automates invoice processing but does not verify the substantive accuracy of invoices (e.g., dates, amounts, NIP)...
5 days ago
Poland Clarifies Fixed Establishment Rules for Mandatory e-Invoicing via KSeF Starting February 2026
The Polish Ministry of Finance published guidelines clarifying when a foreign business has a Fixed Establishment (FE) in Poland for mandatory e-invoicing via KSeF starting 1 February 2026. The obligation to use KSeF...
5 days ago
Aligning Tax, Engineering, and Finance Teams for Successful Tax Automation Implementation and Approval
Aligning tax, engineering, and finance teams early reduces friction, lowers maintenance burden, and speeds up tax automation approval. Each team has different priorities: tax wants compliance and efficiency, engineering...
5 days ago
Poland Clarifies VAT Rules and Structured Invoice Requirements for 2024 Under KSeF System
Taxpayers with 2024 sales under 200 million PLN can issue electronic or paper invoices from Feb. 1 to March 31. Taxpayers with monthly sales under 10,000 PLN can issue electronic or paper invoices from April 1 to Dec...
5 days ago
Over 20% of Belgian Businesses Not Registered with Mandatory Peppol Invoicing System
Over 21% of Belgian businesses with a VAT number (about 940,604 out of 1.19 million) are not registered with the mandatory Peppol digital invoicing system. The deadline to register was January 1, but a three-month grace...
5 days ago
Briefing document & Podcast: E-Invoicing & E-Reporting in Algeria
1. Executive Summary Algeria is in the process of implementing a comprehensive electronic invoicing (e-invoicing) and e-reporting system, signaling a significant modernization of its tax administration. While the...
6 days ago
3 countries offering grace periods for e-invoicing mandates
Belgium has introduced a three-month tolerance period for its mandatory B2B e-invoicing regime, effective from January 1, 2026, allowing businesses to avoid penalties for certain breaches as long as they demonstrate...
6 days ago
E-invoicing: EU and Luxembourg considerations for businesses
The EU’s ViDA directive, effective from April 14, 2025, mandates electronic invoicing and digital reporting for cross-border B2B transactions starting July 1, 2030, requiring businesses to issue compliant...
6 days ago
Global Tax Updates January 2026: Key Rate Changes, E-Invoicing, and Regulatory Reforms Worldwide
UK: HMRC revised VAT grouping policy to include overseas establishments, easing cross-border VAT and enabling VAT reclaims. Germany: Draft amendment proposes permanent 7% reduced VAT rate for hospitality food sales...
6 days ago
Denmark Cancels OIOUBL 3.0 and Unveils New Unified E-Invoicing Strategy
OIOUBL 3.0 Cancellation and Upcoming Nemhandelsforum Announcement The Danish Business Authority has announced the cancellation of OIOUBL 3.0, responding to feedback regarding implementation challenges and service...
6 days ago
E-Invoicing – Release of OIOUBL Schematron Version 1.17.0.RC
The Danish Business Authority has released OIOUBL Schematron version 1.17.0.RC as a release candidate, introducing minor updates that include two tightening validations and an expanded VAT code list. Key updates include...
6 days ago
Update of eInvoice validator and XML schemas for Fiscalization 2.0 messages
As of January 20, 2026, the Fiscalization 2.0 system has recorded over 304,000 taxpayers involved in eInvoice transactions, with more than 3.3 million fiscalized eInvoices issued and 14 taxpayers developing their own...
6 days ago
EU’s ViDA in Motion: How EU Member States Are Preparing for implementing Digital Reporting Requirements (DRR)
Last update: December 5, 2025 Any further insights? Please send a message to [email protected] All you need to know about VAT in the Digital Age (ViDA) – VATupdate Introduction Countries are preparing for the...
6 days ago
Updated Documentation Files: E‑Invoicing and Dematerialised Bookkeeping
On 21 January 2026, the FISCONETplus team of the Belgian FPS Finance released updated versions of two major documentation files related to Belgium’s digitalisation of invoicing and bookkeeping. [financien.belgium.be] 1...
6 days ago
Romania Extends RO e‑Factura (B2B) Deadline for SMEs to 1 July 2026
Romania has officially extended the mandatory RO e‑Factura B2B implementation deadline for small and medium‑sized enterprises (SMEs)—defined as businesses with annual turnover below EUR 500,000—to 1 July 2026. This...
6 days ago
