- Planned changes to electronic signature verification in the e-dokumenty.mf.gov.pl production system.
- The new verification method is already implemented in the test environment to meet current standards and improve performance and reliability.
- Integrators must test their systems in the test environment by January 15, 2026.
- Requirements are detailed in the JPK_VAT interface specification on the Tax Portal.
- Failure to comply will result in file rejection in the production system; the exact production rollout date will be announced separately.
Source: podatki.gov.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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