KSeF integration.
Invoice.app integrates with Poland's National e-Invoicing System (Krajowy System e-Faktur), so you can submit, receive and manage structured electronic invoices in full compliance with Polish regulations.
Invoice submission
Send invoices directly to KSeF with automatic XML generation and encryption. Each invoice is validated, assigned an official KSeF reference number, and you receive a UPO (Official Confirmation of Receipt) once it's accepted.
Every invoice type
Submit VAT, corrective, advance, settlement, margin and VAT RR agricultural invoices to KSeF in the structured XML format.
Status tracking
See the real-time status of every submitted invoice, from pending validation to accepted, rejected or requiring correction.
Two-way sync
Invoices received through KSeF download automatically, including the purchase invoices your suppliers submit, so your records always match the national system.
Corrections
Create corrective invoices linked to the original KSeF documents. Each correction carries the original's KSeF number, so the audit trail is complete.
QR codes
Every KSeF invoice carries a QR code that links straight to the official document in the national system.
Security
Authenticate with encrypted KSeF authorization tokens stored on your device; every exchange with KSeF is encrypted end to end.
Ready to get started with KSeF?
Download Invoice.app and start submitting e-invoices to Poland's National e-Invoicing System today.
