- The route
- ERP → FA(3) → KSeF 2.0
- Standard unit
- EUR 3,600 direct · EUR 3,000 through a partner
Confirm
Entity, authorisation, source system and representative invoice family.
Poland · Direct or white-label
We map the source invoice to FA(3), validate it, submit through the agreed KSeF integration path and return the KSeF reference and technical status to your workflow.
First valid test invoice target: two working days after source access, representative data, KSeF test authorisation and a technical owner on your side are ready.
KSeF provides public API documentation and integration/demo environments. Standard Polish ERP users often already have a native path. The better EurInvoice cases are foreign-group systems, custom software, unusual Business Central or NetSuite data, and partners with several implementations in a queue.
The staged obligation began in February and April 2026, with the micro-business stage on 1 January 2027. The Ministry announced that penalties for KSeF errors remain deferred through the end of 2027.
FA(3) generated from ERP-style data, submitted to the KSeF 2.0 test environment and assigned a KSeF number with UPO. A resubmission was rejected as a duplicate (440).
FA(3) XML · UPO · Sample PDF
Bring a foreign ERP, custom software or partner backlog case. We will qualify it against the standard scope before work starts.
E-mail
[email protected]30-minute call
Choose a time