Latest Update: KSeF Mandate Timeline in Poland
The Polish Ministry of Finance has confirmed the revised rollout of mandatory e-invoicing through the Krajowy System e-Faktur (KSeF) platform:
Voluntary Phase
- Active since January 2022
Mandatory Phase for B2B (Domestic):
- Now scheduled for Feb 1, 2026
Scope
- Applies to all VAT-registered businesses in Poland issuing structured invoices
Cross-border transactions
- Still use traditional invoice formats (outside KSeF)
Real-time submission is required. Invoices must be sent to KSeF before they’re considered issued.
Your Poland e-Invoicing Countdown: Key Dates you can’t miss!
Transaction Type : B2G
Applicability : All government transactions
Effective Date : April 18, 2019
Please note : PDF and paper formats are still accepted
Transaction Type : B2B
Applicability : Companies with turnover > 200 million PLN annually
Effective Date : February 1, 2026
Please note : Mandatory e-invoicing via KSeF
Transaction Type : B2B
Applicability : All other VAT-registered businesses (excluding smallest taxpayers)
Effective Date : April 1, 2026
Please note : Mandatory e-invoicing via KSeF
Transaction Type : B2B
Applicability : Smallest taxpayers (≤ PLN 450 per invoice and ≤ PLN 10,000/month)
Effective Date : January 1, 2027
Please note : Mandatory e-invoicing via KSeF
Transaction Type : B2C
Applicability : Not Applicable
Effective Date : No Clear Mandate
Please note : Currently outside the scope of the KSeF mandate
How Cygnet.One helps Croatian enterprises
Feature
- Plug & Play Integration
- Multi-format Conversion
- e-Signature Enabled
- Secure Invoice Exchange
- Dashboard & Analytics
- Multi-country e-Invoicing
Benefit
- Integrate easily with SAP, Oracle, Microsoft Dynamics, and local ERPs
- Auto-convert PDFs, Excel, JSON, XML to structured government-compliant formats
- Legally valid digital signature and timestamping built-in
- Seamless routing to buyers, suppliers, and tax systems
- Real-time invoice status, failure alerts, and reporting
- One platform for global compliance
Our Accreditations
With tax authorities across the globe
PEPPOL
Certified solution provider
FTA
Recognized VAT platform in UAE
Muwafaq
Recognized e-Invoicing platform
ZATCA
Recognized e-Invoicing platform
IRP
GSTN Authorized
GSP
GSTN Approved
MDEC
Accredited service provider in Malaysia
HMRC
Recognized VAT platform in UK
BOSA
Registered e-Invoice Compliant Software in Belgium
Insights from our experts
e-Invoicing compliance Timeline
Electronic invoicing regulations are rapidly becoming the standard across the European Union (EU) and globally, driving procurement standardization. Countries such as France, Poland, Spain, and Ukraine are preparing to introduce their e-invoicing regulations starting in 2023 and continuing in the years to come.
e-Invoicing around the Globe: Shaping the future of electronic Tax compliance
The e-invoicing age is now here—and rapidly extending its reach. Read on to know about e-invoicing around the globe.
FAQ
No, currently only B2G is mandatory. B2B and B2C will be phased in starting 2026.
UBL 2.1 and CII, following the EU Directive 2014/55/EU.
FINA is Croatia’s official e-invoicing platform for B2G and will likely extend to B2B.
Yes, Cygnet offers plug-and-play integration for SAP, Oracle, Microsoft Dynamics, and more.