- Issuing a “transaction confirmation” after creating an invoice in KSeF (ONLINE, OFFLINE, or emergency mode) is a completely voluntary option, not regulated by law.
- The confirmation is not a legal invoice or simplified invoice and does not create new obligations for taxpayers.
- It is intended to meet practical needs, such as providing proof of transaction to buyers (e.g., in stores or gas stations) before the KSeF number is assigned.
- The confirmation may include QR codes for access to and verification of the invoice.
- The Ministry of Finance provides guidelines on what such a confirmation should contain, but its issuance remains optional.
Source: ksiegowosc.infor.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.
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