KSeF is a central platform of the Ministry of Finance used for issuing, sending, receiving, and storing structured invoices. The implementation of KSeF aims to fully digitize invoicing and accounting processes, as well as facilitate tax control and increase the security of document circulation.

The obligation to use the National e-Invoice System (KSeF) will apply to companies with annual revenues exceeding PLN 200 million from February 1, 2026. From April 1, 2026, the KSeF system will become mandatory for all entrepreneurs in Poland. Starting February 1, every Polish entrepreneur will be required to receive invoices issued by other Polish entrepreneurs via KSeF.

Sparados is the first fintech company in Poland to offer a system that can automatically download e-invoices from KSeF, analyze them, and link them to financial transactions (such as card transactions or bank transfers). Thanks to this, entrepreneurs no longer have to manually match data or verify payments. Sparados is integrated with KSeF via the KSeF 2.0 API.

The integration of Sparados with KSeF significantly facilitates accounting work:

• Accounting receives a ready-made, complete transaction file with assigned invoices, a unique KSeF invoice ID, the name and tax identification number of the contractor.

• The time spent on accounting is reduced to practically zero.

• The system eliminates common problems such as missing invoices or unclear operations.

• The need for communication between the company and the accounting department is reduced, as all the necessary data is available in one complete statement.

Using Sparados in conjunction with KSeF provides companies with full automation of accounting processes and compliance with applicable regulations. Integration significantly reduces service costs and eliminates errors resulting from manual data entry. Companies gain real-time insight into the links between invoices and employee card transactions, which translates into better control over operating expenses. In addition, users do not waste time manually describing invoices or explaining to the accounting department what individual transactions relate to.

Yes. Thanks to the integration of banking with KSeF, the Sparados system automatically recognizes which invoices have been paid and which require a reminder. In this way, it automates the control of incoming payments and detects arrears, and can even send payment reminders.

Yes. Sparados already offers full integration with KSeF via the KSeF 2.0 API. Companies using Sparados will be ready for the full implementation of KSeF in Poland in 2026, as the system is fully compliant and does not require any additional changes.

Sparados accesses your company's invoices in a completely secure manner through authorized access to the National e-Invoice System (KSeF). Similar to other accounting systems, such as iFirma, integration is based on a certificate issued by the entrepreneur.

The company grants Sparados technical access by providing an invoice download certificate (the so-called KSeF token), which only allows downloading and reading invoices issued to a given company. Sparados does not have a certificate for issuing or editing documents, therefore it cannot modify, delete, or add invoices in the KSeF system in any way.

Thanks to this solution, the integration is completely secure – Sparados operates in read-only mode, automatically downloading invoices and linking them to the relevant transactions in the system. As a result, the company gains full automation and transparency of settlements, while maintaining full control over its data in KSeF.

In order for the Sparados system to automatically read invoices from the National e-Invoice System (KSeF), you need to generate a so-called authorization token. This token only allows you to download (read) invoices and is completely secure – it does not give you access to issue or edit documents.

Step-by-step instructions:

1. Go to the official KSeF website and log in to the KSeF system (e.g., via e-Tax Office, trusted profile, or qualified electronic signature).

2. After logging in, select the "Permissions" tab in the menu on the left.

3. Click "Manage tokens" and then "Add token."

4. Select the scope of permissions:

5. Check "Read invoices" (or "Download invoices"),

6. Do not check the "Issue invoices" option.

7. Give the token a name, e.g., "Sparados – read invoices," and click "Generate."

8. Copy the generated string (token) and paste it into the Sparados panel in the KSeF Integration section.

*Important:

You can delete the token or change its permissions in the KSeF system at any time. This means that you retain full control over access to your data.