1 Oct 2026 · Michał

KSeF 2.0 in a small company - how to send an invoice and keep the number

KSeF 2.0 is not a second program next to Excel. See what you send as FA(3), where the KSeF number comes from, and how to avoid leaving an invoice as a draft.

Back to the blog

Start today. The first 14 days are free

Create an account, import partners from a CSV file and issue your first invoice today.

Create demo account Book a call