Invoice Software with KSeF Compliance
Automatically submit invoices to Poland's National e-Invoice System. Secure, fast, and effortless.
What is KSeF?
KSeF (Krajowy System e-Faktur) is Poland's mandatory electronic invoicing system for B2B transactions. If you have a Polish NIP and issue B2B invoices, you need KSeF compliance.
Mandatory from 2026:
February 1, 2026: Companies with 200M+ PLN revenue • April 1, 2026: All businesses • January 1, 2027: Small businesses
How It Works
Create Invoice
Build your invoice using Quento's intuitive invoice creator.
Click 'Submit to KSeF'
Send invoice directly to KSeF system with one click.
Get Confirmation
Instantly receive KSeF reference number and official confirmation.
KSeF Features
Real-time Status
Track invoice status from 'Processing' to 'Accepted'.
KSeF Reference Number
Get unique government reference number for each invoice.
Multi-Company
Each company gets its own KSeF configuration.
Demo Environment
Test with real KSeF authentication before production submission.
Secure Submission
Encrypted connection directly to KSeF servers.
Free in All Plans
No additional cost, no per-invoice fees, no limits.
Frequently Asked Questions
Yes, Quento offers full KSeF 2.0 integration with demo testing and full production support.
Go to Company Settings → edit your Polish company → scroll to KSeF Configuration → select environment (Demo or Production) → paste authentication token from KSeF portal.
Yes - use Demo environment with real authentication but test invoices. Available now.
Each company gets its own KSeF settings. Configure separately for each entity.
KSeF is free in all Quento plans - no additional cost, no per-invoice fees, no limits.
Ready for KSeF?
Join thousands of Polish businesses using Quento for compliant invoicing.
Get Started Free