Slovakia is preparing for structured e-invoices through PEPPOL. The smartest 2026 step is to clean invoice data before delivery workflows become mandatory.
What changes compared with PDF invoices
A PDF is a human-readable copy. An e-invoice is a structured data document that must match format rules, party identifiers, and calculated totals.
PEPPOL readiness is therefore not just about a nice invoice layout. You need reliable company IDs, tax IDs, VAT IDs, IBAN, address, invoice type, VAT rates, line numbers, and two-decimal rounding.
Practical readiness plan
First review issuing companies and the customer directory. Then standardize numbering, document types, and QR payment data. Only after that does PEPPOL export and delivery make sense.
OnlineOffice therefore shows practical checks: missing IBAN, missing company identifier, VAT mismatch, total mismatch, or eInvoice not ready for sending.
Delivery, status, and archive
Production PEPPOL delivery must connect to approved delivery infrastructure or a certified own operation. The user mainly needs a clear status: ready, missing data, queued, sent, delivered, or rejected.
After sending, archiving still matters. The invoice record should keep PDF preview, PEPPOL UBL, delivery state, audit trail, and long-term retrieval.
FAQ
Is an e-invoice just a PDF sent by email?
No. A PDF can remain the readable copy, but an e-invoice is structured data meant for automated processing and delivery.
Does OnlineOffice replace an accountant?
No. OnlineOffice helps prepare data, exports, checks, and archive. Legal obligations and exact settings should be confirmed with an accountant or adviser.
Is slovak e-invoicing 2027: what to prepare now legal or accounting advice?
No. OnlineOffice provides working tools and materials. Important outputs should be reviewed against the specific situation.