Countries · SK
E-invoicing in Slovakia
1 source
Official sources we check for Slovakia.
Slovakia is implementing mandatory B2B e-invoicing through the IS EFA (Informačný Systém Elektronickej Fakturácie) platform, with the mandate planned for phased rollout starting in 2026. B2G e-invoicing is already required for public procurement invoices. Slovakia's approach follows the centralized platform model similar to Italy's SDI and Poland's KSeF.
The IS EFA system will serve as the central hub for submitting, validating, and storing all B2B e-invoices in Slovakia. The platform is designed to accept invoices in EN 16931-compliant formats (UBL and CII). Large enterprises will be required to comply first, with SMEs following in subsequent phases.
Slovakia's mandate includes real-time validation and a unique invoice reference system. Invoice Navigator validates Slovakian e-invoices against the EN 16931 business rules and provides format compliance checking for the IS EFA requirements.
Once mandatory, invoices not submitted through IS EFA will not be recognized for VAT purposes. Slovakia's Financial Administration has indicated that penalties for non-compliance will be aligned with existing VAT penalty frameworks.
TL;DR
| Phase | Status | Scope |
|---|---|---|
| B2G | Live (Apr 2023) | Public procurement >€5,000 |
| B2B mandatory | Jan 2027 | All VAT-registered businesses (incl. freelancers) |
| Cross-border | Jul 2030 | Intra-EU B2B (ViDA alignment) |
Slovakia's Peppol 5-corner model adds a reporting layer that Peppol-only integrations don't have.
5-corner architecture. The standard Peppol 4-corner model (sender → AP → AP → receiver) gets a 5th corner: the Financial Administration receives a copy of every invoice in real-time. Your Access Point provider ("Digital Postman") handles this reporting automatically, but your pipeline must account for the additional validation the FA performs.
Digital Postman certification. You can't use any Peppol Access Point — only FA-certified "Digital Postmen" are allowed. The certification process started in 2026. If your existing Peppol AP isn't certified for Slovakia, you need a local provider.
Pre-filled VAT returns. Slovakia plans to use the reported invoice data to pre-fill VAT returns, replacing current VAT Control Statements and EC Sales Lists by June 2030. This means invoice data quality directly affects your customer's tax compliance — errors in the invoice aren't just formatting issues, they're tax reporting errors.
- What are Slovakia's e-invoicing requirements?
- Slovakia is implementing mandatory B2B e-invoicing through the IS EFA (Informačný Systém Elektronickej Fakturácie) centralized platform, with phased rollout starting in 2026. B2G e-invoicing is already required. The platform accepts EN 16931-compliant formats (UBL and CII).
Have a Slovakia e-invoice that came back rejected? Check it here.
Checking is free. The first verified download every 30 days is free. After that €1.90 per invoice, or €9 a month for all of them.