How long is a KBN licence valid?
One year from the issue date, minus one day. A licence issued on 1 February 2026 is valid until 31 January 2027. The valid-until date is on the licence and the verify page.
Related questions
Answers follow the published KBN rules. The verify page is the authority for any licence or certificate, and where the rules do not cover a case, the Ranking Committee decides. Helpful counters on this demo site started from sample values.