Can a Mistaken Invoice Be Canceled in KSeF?

• In KSeF, an invoice can only be canceled if it was not yet effectively issued: it stayed in the accounting system, was not sent to KSeF, did not get a KSeF number, and was not delivered to the buyer.
• If a document is only a draft/internal approval version, it may be annulled in the accounting system before transmission to KSeF.
• Before canceling, confirm the document’s status and make sure it was not shared with the customer or entered into legal circulation.
• Best practice is to mark the document as canceled, record the reason, and keep an audit trail (draft number, dates, user, reason).
• Once a document has been sent to KSeF and assigned a number, cancellation is generally not the solution; correction is then needed.

Source: pit.pl

Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.

---

---