Slovakia mandates B2B e-invoicing from January 2027 under Peppol 5 corner model
Slovakia will require all VAT-registered businesses to issue, receive, and report structured electronic invoices for domestic B2B transactions starting January 1, 2027. The mandate uses the Peppol 5 corner model and aligns with the EU's ViDA framework.
From January 1, 2027, Slovakia will require all VAT-registered businesses to exchange invoices in structured electronic format through certified Peppol Access Points and report them to the Slovak Financial Administration within 15 days. The mandate aligns with the EU’s ViDA framework and sets the stage for cross-border e-invoicing rules in 2030.
Slovakia will require all VAT-registered businesses to issue, receive, and report structured electronic invoices for domestic B2B transactions starting January 1, 2027. The mandate comes from an amendment to Slovakia’s VAT Act, formally approved by the Slovak National Council on December 9, 2025.
What the mandate requires
Invoices must follow the European EN 16931 standard in XML format, using UBL 2.1 or CII syntax. They must be exchanged through certified Peppol Access Points. A PDF sent by email no longer qualifies as a valid invoice.
Both issued and received invoices must be reported to the Financial Administration no later than 15 days after issuance or receipt. Electronic invoices must be archived in their original XML format for 10 years.
The scope covers all VAT-registered taxpayers issuing invoices for domestic B2B transactions, all VAT-registered taxpayers receiving invoices, and non-taxable persons engaged in business or economic activities. Public sector transactions are already covered under the IS EFA platform, operational since April 2023.
Penalties for non-compliance
Late, incomplete, or inaccurate reporting can trigger fines of up to €10,000. Repeated violations are punishable by up to €100,000. For enterprises managing thousands of monthly invoices across multiple legal entities, these amounts can accumulate quickly.
Timeline and ViDA alignment
January 1, 2027 marks the start of mandatory structured B2B e-invoicing and near real-time e-reporting for domestic transactions. A transitional period closes on June 30, 2030. From July 1, 2030, mandatory e-invoicing and e-reporting begin for intra-Community B2B transactions, in line with the EU’s ViDA (VAT in the Digital Age) framework.
Slovakia’s design uses the Peppol 5 corner architecture. Businesses exchange invoices peer-to-peer through accredited service providers, while invoice data flows in near real-time to the Slovak Financial Administration, which sits at the fifth corner. This mirrors the direction ViDA is pushing across the European Union.
What enterprises should do now
January 1, 2027 is less than one year away. ERP changes, master data cleanup, supplier and customer onboarding, tax engine alignment, and reporting integrations are rarely quick projects. Enterprises that delay until late 2026 will face compressed go-live windows and limited testing capacity on the Peppol network.
For multinationals, the strategic implication is clear: the compliance model chosen for Slovakia should scale to France, Germany, Belgium, Poland, Spain, Romania, and every other EU member state preparing to bring its own Digital Reporting Requirements regime online by 2030. A single-country approach to compliance is no longer viable.