🇵🇱Poland
Some businesses are already covered, others are not yet. The timetable below says which.
Verified on 2026-08-11
The timetable
| Date | Who | Obligation | Scope |
|---|---|---|---|
| 1 February 2026in force | businesses with turnover above PLN 200m | issuing and receiving through KSeF | b2b |
| 1 April 2026in force | all VAT-registered businesses | issuing and receiving through KSeF | b2b |
| 1 January 2027upcoming | micro-enterprises | issuing | b2b |
Legal basis. The KSeF Act; derogating decision of the Council of the EU.
Formats and transmission
- Accepted formats
- FA(3) (national XML)
- Regulatory model
- clearance
- Transmission network
- KSeF (Krajowy System e-Faktur)
What Factlint checks today
A national FA(3) format coupled to the state network: out of scope, same reasoning as Italy.
The timetable is tracked and documented, but this jurisdiction's national format is not part of what the engine validates.
Do you build invoicing software?
You are the one carrying this deadline for your customers. Factlint fits upstream of your chain: one call validates, fixes what can be fixed without risk, and returns the exact list of what is missing. Above all, every verdict is rendered against a pinned, time-stamped rule set — so you can replay it years later, and test today against rules that are not yet in force.
Official sources
- European Commission — eInvoicing in Polandaccessed on 2026-08-11
The Ministry of Finance has confirmed this timetable will not be postponed again. Comparison sites still showed this mandate as “delayed” in the summer of 2026, six months after it took effect.
History of this page
- 2026-08-11Page created; timetable cross-checked the same day.
General information, verified on 2026-08-11. This is neither tax advice nor legal advice. Factlint validates and prepares your files upstream of your platform; it does not transmit them and it replaces no reporting obligation.