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Get ahead of Slovakia’s B2B & B2G e-invoicing requirements with Global E-invoicing Compliance

If you invoice Slovak buyers or public bodies, the rules are about to change. From 1 January 2027, Slovakia moves B2B and B2G onto the same decentralised Peppol five‑corner model, and the existing IS EFA portal for B2G is being decommissioned.

ecosio's Global E‑invoicing Compliance solution is production‑ready for Slovakia today, so you can prepare early instead of scrambling in Q4 2026.

What's changing in Slovakia

  • Invoices flow peer‑to‑peer between certified service providers, known locally as digital postmen, over Peppol BIS Billing 3.0 with the Slovak CIUS v1.8.

  • A separate invoice data document, known as the Slovak tax data document or SK TDD, must reach the Financial Administration within a 15‑minute window.

  • B2B and B2G follow the exact same rules from day one.

How Global E‑invoicing Compliance helps you get ready

  • Transforms your outbound invoices into Peppol BIS Billing 3.0 with the Slovak CIUS, so your team runs one mapping across standard and correction flows instead of maintaining country‑specific logic in your ERP system.

  • Generates and submits the SK TDD asynchronously inside the 15‑minute legal window, so you stay compliant without anyone watching a clock.

  • Connects you to the Slovak Peppol network as an accredited digital postman via the centralised Slovak SMP, so you don't have to build or certify delivery infrastructure yourself.

  • Handles message‑level status and exceptions in one dashboard, so AR and AP teams see exactly where an invoice is stuck and can fix it before it delays payment.

  • Covers national onboarding steps such as E‑faktúra registration on PFS, DIČ verification and digital postman selection, plus ten‑year compliant archiving, so audit readiness is built in from day one.

Why acting now matters

Slovakia's guidance is still evolving, and issuers who wait risk reactive rework, failed submissions, and VAT deductibility issues. Starting your rollout on a future‑proof platform means one integration covers Slovakia and every other mandate we support, so your next country launch does not start from scratch.

Ready to get started?

Explore the details and contact our team via the Slovakia country page: E-invoicing compliance in Slovakia.

The ecosio Product team

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