After the mandatory National e-Invoice System (KSeF) is implemented, VAT-exempt taxpayers can still issue receipts but must provide a structured invoice upon the buyer’s request. This requirement applies even to...
All Technology Posts
PEF and KSeF: Will You Need to Send Invoices Twice? Step-by-Step Practical Guide
From 2026, large and small companies in Poland must use the National e-Invoice System (KSeF). The Electronic Invoicing Platform (PEF) is already used for public procurement. Businesses are concerned whether they will...
KSeF: Invoice Issue and Receipt Dates Key for Correct VAT Settlement and Tax Deductions
In KSeF, the invoice issue date is when it is sent to the system, and the receipt date is when it receives a KSeF number. To deduct VAT for a given month, the buyer must receive the invoice within that month, not at the...
Correcting Errors in KSeF Invoices: Challenges, Legal Changes, and Software Solutions for 2026
Correction of an incorrect invoice in KSeF always requires issuing a correction invoice; annulment or withdrawal is not allowed. Current law only allows invoice annulment in rare cases involving paper invoices where no...
Mexico Unveils 2026 Economic Package with E-Invoicing and Digital Platform Tax Reforms
Mexico published decrees introducing the 2026 Federal Revenue Law and major tax reforms, including e-invoicing and digital platform taxation. The new laws aim to boost compliance, fight tax evasion, and modernize tax...
Philippines Extends Electronic Invoicing Compliance Deadline to December 31, 2026 for Specified Taxpayers
The deadline for specified taxpayers to comply with electronic invoicing requirements is extended to Dec. 31, 2026. The extension applies to SMEs in e-commerce, large taxpayers, and those using computerized accounting...
Denmark Updates OIOUBL Schematron: Enhanced E-Invoice Validation, CO2 and Currency Checks Required by 2025
The Danish Business Authority released OIOUBL 2.1 schematron version 1.16.0. The update improves e-invoice data quality with CO2 data checks and stricter currency code controls. CO2 data validation is optional but...
Frequently Asked Questions About eInvoicing Obligations in Slovakia Effective from January 2027
From January 1, 2027, electronic invoicing (eInvoice) in a structured XML format will be mandatory for VAT payers in Slovakia for domestic B2B and B2G transactions. eInvoice is a structured XML file (not a PDF) that can...
Indonesia’s DGT Shifts to Real-Time E-Invoice Deactivation for Non-Compliant Taxpayers Under PER-19
Indonesia’s DGT issued Regulation No. PER-19/PJ/2025, allowing systematic deactivation of e-invoicing (e-Faktur) access for non-compliant taxpayers. Non-compliance includes failure to withhold/collect taxes, submit...
Ireland to Require E-Invoicing for Domestic B2B Transactions from November 2028
Ireland will require electronic invoicing for domestic B2B transactions starting November 1, 2028. The mandate aims to improve VAT compliance and combat VAT fraud. Businesses must report sales to Irish Tax and Customs...
New E-Invoice Rules: Mandatory Validation and 8-Year Storage of Validation Reports in Germany
German businesses must now not only check the content of incoming e-invoices but also technically validate them and keep the validation report for at least eight years. The obligation to issue e-invoices between...
Get Ready for KSeF: Practical Workshop for Businesses on E-Invoicing Revolution, Nov 27, 2025
Free live event on November 27, 2025, organized by MDDP and PZFD, about preparing for KSeF (National e-Invoicing System). Mandatory KSeF implementation dates: February 1, 2026 for companies with 2025 turnover over 200...
Malta Set to Launch Mandatory E-Invoicing and Real-Time VAT Reporting in Digital Tax Reform
Malta plans to accelerate the introduction of mandatory e-invoicing and real-time VAT reporting. The reform aligns with international standards, including the OECD’s 15% Global Minimum Tax and the EU’s ViDA initiative...
Mexico 2026 Tax Reform: Key Changes to Electronic Invoicing (CFDI) and Compliance Requirements
2026 tax reform introduces stricter rules for electronic invoicing (CFDI), focusing on transparency, authenticity, and tax compliance. Hydrocarbons sector CFDIs must now include a permit number for better traceability...
When Is E-Invoicing Mandatory? Exceptions and Voluntary Cases Under German VAT Law
Mandatory e-invoicing only applies when there is a legal obligation to issue a VAT invoice. E-invoicing is not required for B2C sales or many VAT-exempt transactions (e.g., financial services, real estate rental). In...
How to Obtain a KSeF Certificate Without a Qualified Seal: Options for Entrepreneurs
Personal partnerships and individuals cannot obtain a qualified electronic seal for KSeF certification. They must use a trusted signature (ePUAP Trusted Profile) or a qualified electronic signature instead. There is...
myDATA v1.0.12: New Features for E-Invoicing, Interoperability, and Digital Transaction Transparency
The new myDATA v1.0.12 platform launches on Thursday, 13/11, enhancing digital transaction transparency and system interoperability. Key updates include electronic invoicing for B2B, B2C, and B2G via providers, with new...
Slovenia Enacts Law Mandating E-Invoices for Businesses, Allowing Consumer Choice, Effective 2028
Business entities must issue e-invoices to other business entities. Consumers can choose between e-invoices and paper invoices and may revoke consent for e-invoices at any time. E-invoices to consumers must include a...
Mexico’s VAT Fraud Crackdown Needs True Real-Time Invoice Verification, Not Platform Enforcement
Mexico’s new VAT fraud measure outsources enforcement to digital platforms like eBay and Amazon instead of implementing real-time fiscal invoicing. The reform digitizes enforcement but does not address the underlying...
Comarch Certified as E-Invoicing Provider in Croatia, Expands European Compliance Solutions
Comarch has been officially recognised by the Croatian Tax Administration as a certified e-invoicing provider. Their solutions fully comply with Croatia’s legal and technical requirements for e-invoicing and digital...
Turkey Updates e-Invoice Package: New Validation Rules and Code Lists Effective December 2025
The e-Fatura (e-Invoice) Package will be updated by the Revenue Administration (GİB) effective December 1, 2025, impacting technical validation rules, code lists, and integration forms. Code lists (ProfileID types...
Slovakia continues advancing toward e-invoicing
E-Invoicing Mandate Preparation: Slovakia is progressing toward mandatory e-invoicing and e-reporting, with a draft law published on July 30, 2025, and plans for implementation starting January 1, 2027, for domestic...
Briefing document & Podcast: Germany E-Invoicing B2B Mandate, Timeline and Compliance
Last update: November 12, 2025 SUMMARY 1. Executive Summary: Germany is implementing mandatory e-invoicing for domestic B2B transactions. Starting January 1, 2025, all businesses must be able to receive e-invoices. A...
Blog Ahu Ocak Caglayan: Field Notes from Recent Mandates: Patterns, Pitfalls, and Practical Fixes
Recurring Challenges Across Countries: Fragmented controls, master-data drift, blind spots in monitoring, scattered audit evidence, and uncodified exception handling keep appearing despite different local acronyms...
Briefing Document & Podcast: VAT in the Digital Age (ViDA) – Single EU VAT Registration
SUMMARY Executive Summary: The Single EU VAT Registration (SVR) is a cornerstone of the EU’s “VAT in the Digital Age” (ViDA) initiative, designed to drastically simplify cross-border VAT...
Briefing Document & Podcast: VAT in the Digital Age (ViDA) – Platform Economy
SUMMARY Executive Summary: The Platform Economy pillar of the EU’s ViDA reform aims to modernize VAT rules for online platforms by shifting the responsibility for VAT collection and remittance in certain...
Webinar – DGFIP & MATHEZ COMPLIANCE: exclusive webinar to make your transition to e-invoicing a success (Nov. 13)
REGISTER HERE Electronic invoicing: how to get there and get there quickly! Alongside experts from the DGFIP and MATHEZ COMPLIANCE, discover the keys to preparing for the arrival of the reform, understanding the...
Briefing Document & Podcast: VAT in the Digital Age (ViDA) – Digital Reporting Requirements
SUMMARY 1. Executive Summary: The EU’s VAT in the Digital Age (ViDA) initiative introduces significant changes to VAT reporting through its Digital Reporting Requirements (DRR). DRR mandates e-invoicing and real...














