eFaktura.nl integrates with KSeF

01/04/2026 2 min Press release

April 1, 2026, Amsterdam
eFaktura.nl has announced full integration with Poland’s National e-Invoicing System (KSeF), enabling Polish businesses to send and receive e-invoices directly within the application. The new functionality addresses the needs of companies operating internationally and adapting to evolving e-invoicing regulations.

KSeF without changing your workflow

With the KSeF integration, eFaktura.nl users can manage e-invoices within their existing processes—without the need for additional tools or system changes.

After a one-time setup:

invoices are issued in eFaktura.nl
the system automatically submits them to KSeF
once processed, a KSeF number and confirmation are returned and visible in the application

Users retain full visibility over invoice statuses and access to all documents in one place.
In the PRO plan, incoming cost invoices from KSeF are also automatically available within the COSTS module.

Activation of the integration is a one-time process that takes just a few minutes and requires connecting the account to KSeF using a certificate.

One tool for international operations

eFaktura.nl is currently the only solution that combines KSeF integration with the Peppol network, enabling businesses to manage both domestic and international invoicing within a single system.

This is particularly relevant for companies operating across borders—especially in the Benelux countries, Germany, France, and Poland—where different e-invoicing standards apply.

Simplifying regulatory change

“The introduction of KSeF represents a significant operational shift for many businesses,” says Marysia Dąbrowska, CMO of eFaktura.nl. “The integration itself was also a major technological and organizational effort for our team. Over the past months, we have implemented two major e-invoicing integrations—KSeF and Peppol—to ensure our users are fully prepared for regulatory changes across multiple markets.”
“Our goal is not only to respond to regulations, but to anticipate them wherever possible. This allows businesses using eFaktura.nl to stay compliant without having to track regulatory changes themselves. Our role is to simplify these processes and provide a tool that supports their day-to-day operations.”

Customer support

eFaktura.nl provides support at every stage of integration and daily use.
In response to concerns around KSeF implementation, the customer support team offers dedicated assistance during onboarding and the initial setup process.

Users have access to in-app chat, email support, as well as dedicated guides and help articles. Live support within the application is also available to help resolve issues quickly.

eFaktura.nl is a business administration platform used by over 30,000 companies across the Netherlands, Belgium, Germany, France, Luxembourg, and Poland. The system removes language and technological barriers, offering a compliant and easy-to-use invoicing solution. The application is available in 10 languages and aligned with European tax and e-invoicing standards.