- The first week of mandatory KSeF (National e-Invoice System) saw significant technical issues, mainly with logging in due to overload of the trusted profile authentication system.
- The core KSeF technology and API functioned stably, and alternative login methods remained available during trusted profile issues.
- Taxpayers had many questions about the tax implications of invoices received via KSeF, but the system only changes the delivery channel, not the tax settlement rules.
- There were discrepancies between XML files from KSeF and invoice visualizations provided to clients, especially in the telecom and leasing sectors, with some payment details missing in KSeF files.
- Concerns remain about system capacity and coordination as full reporting obligations approach, highlighting the need for better information campaigns and technical preparedness.
Source: mddp.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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