KSeF status
All three environments are responding correctly. Invoice submission is running without disruptions.
Independent monitoring of the government KSeF 2.0 API, run by Biurko. We are not affiliated with the Ministry of Finance.
Environments
KSeF 2.0 API · probes every 5 minAvailability — last 90 days
Response time — last 24 h
A gap in the line means the API did not respond
Don't want to keep checking this page?
Biurko sends invoices to KSeF for you — and watches the status so you don't have to. During an outage we queue your documents and retry automatically once KSeF is back.
What is KSeF and where does this data come from?
KSeF (Krajowy System e-Faktur) is the central e-invoicing system of the Polish Ministry of Finance, through which Polish businesses are required to issue structured invoices — the largest VAT payers from 1 February 2026, all remaining businesses from 1 April 2026. When KSeF is down, invoicing stops across Poland.
This page shows the results of our own probes: Biurko's backend sends an HTTP request to the government KSeF 2.0 API every 5 minutes and publishes the result of every attempt here — no sugar-coating.
Issue the invoice in offline24 mode: mark it with a QR code and submit it to KSeF within 24 hours after the system is back online. The invoice is valid from the moment it is issued. If you use Biurko, your documents are queued and submitted automatically once KSeF recovers.