The National e-Invoicing System in Poland (Krajowy System e-Faktur – KSeF) has a direct impact on full accounting in Poland, as structured electronic invoices issued through the system become the legally binding source documents for accounting and tax purposes. From 2026, invoices covered by KSeF must be issued, received, and stored via the central government platform, which significantly changes how accounting data is documented and processed.
For companies keeping statutory accounting books, KSeF affects document circulation, posting procedures, and reconciliation processes. Invoice numbers, issue dates, and statuses assigned by KSeF must be reflected consistently in accounting records, increasing the importance of accurate and timely data entry. Accounting systems must therefore be properly integrated to ensure that invoice data flows smoothly into the general ledger and VAT records.
For foreign companies operating in Poland, KSeF introduces additional complexity due to differences in local regulations and invoicing standards. Professional accounting services in Poland help ensure that full accounting remains compliant and efficient in the KSeF environment. getsix supports foreign businesses with KSeF integration and ongoing accounting in Poland. More details are available at https://getsix.eu/our-services/accounting-in-poland/ – contact getsix® to prepare your accounting processes for the new requirements.
