From 1 January 2027, B2B e-invoicing in Slovakia is mandatory via Peppol-CTC. eConnect is PASR-certified and production-ready for Bisv3, TDD SK and MLS.
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Check whether your Access Point can handle PASR, Bisv3, TDD SK, MLS and the right identifiers before 1 January 2027.
Also check mandate scope, ISDOC/ERP readiness, retention, and whether your setup is ready for ViDA.
The invoice follows C1-C2-C3-C4. Only for domestic transactions do C2 and C3 send TDD SK to Finančná správa in parallel. This is not clearance. MLS confirms invoice delivery and also comes back from C5.
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eConnect is on PASR List 1 of Finančná správa (EFSK). OpenPeppol Testbed: 5/5 POSITIVE on Bisv3 and TDD SK (April 2026).
Internal ISDOC? eConnect converts automatically to Bisv3 for sending over the Slovak Peppol network.
Via KROS, Slovakia's largest accounting software provider: local support and direct integration.
PASR accreditation, built-in ISDOC transformation and local support via KROS: three reasons to connect through eConnect.
Three positions: a domestic SK flow (TDD), intra-EU Peppol without TDD, and the ViDA route after 2030.
The mandate applies to all domestic B2B and B2G transactions where the supplier or recipient is a Slovak VAT-registered entity. Voluntary use of eFaktúra starts in Q2 2026; the obligation is effective from 1 January 2027.
OpenPeppol certification gives access to the global Peppol network. The Slovak Peppol Authority (PASR = Finančná správa) also requires a national PASR accreditation for providers that may register Slovak organisations on the SMP. Without PASR accreditation an AP may not manage a Slovak Peppol address. eConnect has both: an OpenPeppol certificate and PASR accreditation (List 1, May 2026).
Yes. ISDOC is a locally compatible format used by many Slovak and Czech ERP systems. eConnect automatically transforms ISDOC to Bisv3 for exchange over the Slovak Peppol network.
Finančná správa accepts accreditation applications and voluntary onboarding from Q2 2026. The Peppol Testbed for TDD SK is available. Recommendation: start before Q3 2026 so you are production-ready well before 1 January 2027.
From 1 July 2030 the Slovak mandate extends to cross-border transactions (ViDA-DRR). The domestic control and summary report then ends. eConnect is ViDA-ready: the platform architecture supports DRR + EN 16931 with local CIUS extensions.
Schedule a meeting. We assess your route for PASR, Bisv3, TDD SK and MLS.
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