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KSeF Q&A – the questions companies most frequently ask us

Are you planning to implement or are you already implementing the National e-Invoicing System? See what companies most frequently ask us about

Our experts actively support our clients in the implementation of the system and help resolve all doubts along the way. Can't find the answer to a question of your interest? Have other questions about KSeF? Contact us! We will advise you on how to smoothly implement the system in your company.

1. When is a structured e-invoice considered issued and when received?

2. What do I need to remember about when issuing a correcting invoice to account for an annual or volume rebate in KSeF??

3. How to correct a structured e-invoice?

4. Is invoicing in KSeF mandatory also for foreign enterprises registered for VAT in Poland?

5. Do all sales invoices have to be issued in KSeF?

6. Can foreign enterprises that are registered for VAT in Poland but do not have a fixed establishment here choose to use KSeF voluntarily?

7. Does it make sense for foreign enterprises that are registered for VAT in Poland but do not have a fixed establishment here to implement KSeF?

8. Is it possible to do self-billing in KSeF?

9. How to log into KSeF if you are a company?

10. Should a KSeF invoice show a serial invoice number assigned by the taxable person or will the KSeF identification number suffice?

11. Is it possible to issue correcting notes (nota korygująca) in KSeF?

12. Is it possible to issue invoice duplicates in KSeF?

13. Can you add attachments (e.g. an acceptance report) to invoices issued and sent through KSeF?

14. Do you need to have your own archive since documents will be archived in KSeF?

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Katarzyna Judkowiak

Tax adviser (Poland)

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Tomasz Balcerak

Tax adviser (Poland)

Partner

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