Key dates for e-invoicing in Poland
Poland is advancing toward a fully digital and compliant invoicing ecosystem. Here are the key milestones to stay ahead of.
January 2022
KSeF launched as a voluntary national e-invoicing platform.
June 2024
Original mandatory rollout postponed to allow additional preparation.
February 2026
Mandatory KSeF e-invoicing begins for businesses with annual sales exceeding PLN 200 million.
April 2026
Mandatory KSeF e-invoicing expands to all remaining VAT-registered businesses.
This mandate currently affects both e-invoicing and e-reporting
E-invoicing
Mandatory
Mandatory for domestic B2B transactions
E-reporting
The Mandate
Who is in scope in Poland?
B2B
Mandatory (phased)
B2G
Mandatory (Government invoices within the KSeF regime)
B2C
Voluntary
Cross-border
Not currently included in KSeF
Invoice formats
Supported formats in Poland
Invoices must comply with Poland's e-invoicing mandate using one of the following approved formats.
FA(3) XML (KSeF Schema)
Structured XML
Companies affected in
Poland
All VAT-registered businesses established in Poland
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