Secure and reliable communication with KSeF

High performance — efficient processing and transmission of large invoice volumes.

inVoice – your readiness for KSeF

inVoice is an advanced KSeF HUB that simplifies and automates e-invoice handling, increasing your organisation’s efficiency. On one hand, it provides a secure and reliable connection to the National e-Invoice System (KSeF); on the other, it serves as a central repository of e-invoices that you can use regardless of KSeF availability.

The system ensures efficient and convenient access to all purchase and sales e-invoices, including PDF versions. It guarantees effective, high-performance invoice submission — if technical errors occur, transmission is automatically retried with no risk of duplicate registration. It instantly retrieves KSeF-assigned invoice numbers and UPO documents and returns them to the sender.

With inVoice, you maintain full compliance with KSeF — in4mates ensures the system is continuously updated to reflect regulatory changes, while you minimise the need for modifications across individual systems handling invoices, both now and in the future.

How inVoice works

KSeF: how to gain full control over your invoices?

KSeF: how to find a specific invoice among thousands of documents?

How to check the UPO number for a specific invoice?

inVoice – one simple interface for all invoicing systems.

Why choose the KSeF HUB from in4mates?

Full automation

inVoice automates invoice generation, transmission to KSeF and retrieval of KSeF invoice numbers. This speeds up the invoicing process and eliminates the risk of errors.

Flexible integration

It integrates seamlessly with all systems used to send and process invoices, enabling fast implementation and full data synchronisation.

More than compliance

The system ensures full regulatory compliance and provides secure, reliable communication with KSeF. It delivers e-invoices to the correct recipients within your organisation.

Maximum performance

inVoice handles large invoice volumes without loss of efficiency, ensuring stability and reliability even under heavy system load.

Save time and automate e-invoice handling

How does inVoice work? Explore the key processes

Registers sales e-invoices in KSeF

1 Converts data into the e-invoice format.

2 Receives sales invoices.

3 Completes missing data.

4 Verifies invoice accuracy.

5 Sends e-invoices to KSeF (with automatic retries).

6 Retrieves KSeF-assigned invoice numbers.

Retrieves generated UPO documents

Downloads purchase e-invoices

Routes data retrieved from KSeF to the appropriate systems

Security without compromise

We apply best practices in data protection — encrypting all communication with KSeF and ensuring secure storage of authorisation tokens. Your data is protected at every stage of the process.

inVoice – always available
e-invoice repository

An integral part of the inVoice system is a repository where all purchase and sales e-invoices are stored, along with their related KSeF numbers and UPO documents. This gives you everything in one place and constant access to your data, regardless of KSeF availability. Using the web application, you can conveniently:

Search and filter e-invoices based on various criteria.

Download and view e-invoices in XML and PDF formats.

Pause and resume the sending of selected e-invoices.

Identify incorrect invoices and replace them with correct ones.

Search for and download UPO documents.

inVoice – more than just a KSeF connector

inVoice is an advanced KSeF HUB that can be tailored to your industry, business scale and operational needs. Discover the system’s unique capabilities.

Always up to date data

The system enables real time report generation, making it easier to monitor invoices, costs and revenues in your organisation.

Optimisation without disruption

ou can efficiently implement, integrate and adapt inVoice to your organisation’s needs without requiring major changes to your IT infrastructure.

Simpler integration,
better results

Choose simple integration with the financial and accounting systems used in your organisation. Select the approach that best fits your system capabilities and business needs.

Option 1

direct integration using the inVoice API

Option 2

import and export of CSV, MS Excel or XML files

Option 3

integration with external systems or via an integration bus

Discover inVoice capabilities – watch demo

Discover our clients’ success stories

Our systems and services streamline business operations. See how in4mates solutions support more efficient business processes.

CASE STUDY

inVoice in numbers

50,000

e-invoices per hour registered in KSeF

O

duplicate invoices

10 s

to find the UPO number of an invoice

100 %

error-free invoice submissions