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.
B2G (Business to Government)
Mandatory
Effective: April 18, 2019
Electronic invoicing requirements for transactions with government entities and public sector organizations.
B2B (Business to Business)
Phased Rollout
Effective: February 1, 2026
Electronic invoicing requirements for transactions between private businesses and commercial entities.
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.
🔄
Auto-Reconciliation
Match bank transactions with e-invoices automatically
💸
Instant Payments
Pay invoices with one click via PIS
📊
Cash Flow Visibility
Combine invoice & bank data for forecasting
Explore E-Invoicing Globally
Compare e-invoicing regulations across 30+ countries
View All E-Invoicing Regulations