E-invoicing rules · Poland (PL)
E-invoicing in Poland
Is e-invoicing mandatory in Poland?
Yes. Invoices in Poland must be issued through the national KSeF system. The largest taxpayers have been covered since 1 February 2026 and most businesses since 1 April 2026. The smallest issuers, with invoiced sales up to PLN 10,000 a month, must use KSeF from 1 January 2027, when penalties start.
Key dates
-
In force
KSeF mandatory for the largest taxpayers; everyone must be able to receive.
-
In force
KSeF mandatory for most other businesses.
-
Upcoming
KSeF mandatory for the smallest issuers; penalties apply.
At a glance
- B2B status
- Phasing in
- Public sector (B2G)
- Public bodies receive invoices through KSeF and PEF.
- Formats
- FA(3) structured XML
- Transmission
- KSeF (Krajowy System e-Faktur), directly or through invoicing software using the KSeF API.
- Reporting
- KSeF clears every invoice centrally.
- Tax authority
- Ministry of Finance (KSeF)
Freelancers and small businesses
Sole traders (JDG) are covered. Those with invoiced sales up to PLN 10,000 a month have until 1 January 2027; the Ministry of Finance offers free tools in Polish.
Cross-border sales within the EU
Under the VAT in the Digital Age (ViDA) package adopted in 2025, structured e-invoicing and near real-time digital reporting become mandatory for intra-EU B2B supplies from 1 July 2030, with EN 16931 as the default standard. Since 2025, member states may also introduce domestic B2B e-invoicing mandates without asking the EU for a derogation.
Using InvoBox in Poland
Poland uses FA(3) structured XML. InvoBox does not support these formats yet.
Create a free accountFrequently asked questions
Is e-invoicing mandatory in Poland?
Yes. Invoices in Poland must be issued through the national KSeF system. The largest taxpayers have been covered since 1 February 2026 and most businesses since 1 April 2026. The smallest issuers, with invoiced sales up to PLN 10,000 a month, must use KSeF from 1 January 2027, when penalties start.
Which e-invoice formats are used in Poland?
FA(3) structured XML. Transmission: KSeF (Krajowy System e-Faktur), directly or through invoicing software using the KSeF API.
What does it mean for freelancers and small businesses in Poland?
Sole traders (JDG) are covered. Those with invoiced sales up to PLN 10,000 a month have until 1 January 2027; the Ministry of Finance offers free tools in Polish.
When is e-invoicing required for cross-border sales within the EU?
Under the VAT in the Digital Age (ViDA) package adopted in 2025, structured e-invoicing and near real-time digital reporting become mandatory for intra-EU B2B supplies from 1 July 2030, with EN 16931 as the default standard. Since 2025, member states may also introduce domestic B2B e-invoicing mandates without asking the EU for a derogation.
Rules change, and some dates above are still being finalised. Confirm the current requirements with Ministry of Finance (KSeF) or your tax adviser before you act. This page is general information, not tax advice.