#E-Invoicing in Poland
Poland's KSeF national e-invoice system becomes mandatory for large companies from February 2026, with full rollout by April 2026.
Mandatory
B2G Status
Phased
B2B Status
#E-Invoicing Status
B2G and B2B electronic invoicing requirements
B2G (Business to Government)
Mandatory
Effective: April 18, 2019
Electronic invoicing requirements for transactions with government entities.
B2B (Business to Business)
Phased Rollout
Effective: February 1, 2026
Electronic invoicing requirements for transactions between private businesses.
#Platform & Formats
Supported Formats
FA(2)XML Schema
Additional Notes
Real-time invoice registration with tax authority. Invoices receive unique KSeF number.
Open Banking + E-Invoicing in Poland
Combining e-invoicing with Open Banking creates powerful automation opportunities. Open Banking APIs enable real-time bank transaction access for automated invoice reconciliation, while Payment Initiation Services (PIS) allow instant payments directly from e-invoices.
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Auto-Reconciliation
Match bank transactions with e-invoices automatically
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Instant Payments
Pay invoices with one click via PIS
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Cash Flow Visibility
Combine invoice & bank data for forecasting