Accounting is one of the tasks that must not be missing in any biogas plant – and one that generates the most manual routine. Exporting invoices, forwarding them, re-entering them with the tax advisor: at every interface between the plant, the office and the consultancy, time is lost and error sources arise. This is exactly where our new integration comes in.

We are pleased to announce an important milestone: the integration of the DATEV Rechnungsdatenservice 1.0 into the Biotaktix biogas software has successfully passed DATEV's technical review. As a result, Biotaktix is listed as a DATEV interface provider, and our customers can exchange their document data directly and continuously digitally with their tax consultancy.

What the interface delivers

With the new Biotaktix interface to the DATEV Rechnungsdatenservice 1.0 invoices and credit notes can be transferred directly from Biotaktix to various DATEV services:

  1. DATEV Unternehmen online (DUO),
  2. DATEV Kanzlei Rechnungswesen or
  3. DATEV Mittelstand Faktura und Rechnungswesen


Note: Most plant operators will work with DATEV Unternehmen online (DUO), so this article refers only to that. However, it is also possible to transfer the documents directly into the Kanzlei Rechnungswesen of the tax consultancy, without going through Unternehmen online.

The documents therefore end up directly in the environment the tax consultancy already works with.

The advantage lies in a seamless data flow: from capture in the plant via Biotaktix to accounting – without manual exports, without duplicate entry, without media breaks. The documents are handed over in a structured and traceable way, noticeably simplifying collaboration between plant operation and the consultancy.

How the integration works

The setup is quick and straightforward. For the document exchange to work, two parties need to connect – your tax consultancy and Biotaktix:

1. Requirement for your tax consultancy

In the tax consultancy, DATEV Unternehmen online as well as the Rechnungsdatenservice 1.0 must be activated and set up. This is the prerequisite for the transmitted documents to be received and processed on the DATEV side. Usually your consultancy is already familiar with this step – just bring it up with them.

Important: The processing mode "Extended" must be activated in DATEV Unternehmen online.

You can find a guide for setting up the data service on the DATEV eG website (click here, doc no. 1037210).

Further instructions for setting up the data service can be found in doc no. 1071255 (click here).

2. Connect the interface in Biotaktix

In Biotaktix the interface is activated and linked to your DATEV access. You assign the respective plants in Biotaktix to the DATEV client. This determines which documents – invoices and credit notes – are transferred to DATEV Unternehmen online.

3. Transfer documents

Once the connection is set up, your document data flows directly from Biotaktix into DATEV Unternehmen online and is available to your tax consultancy – without intermediate steps.

We support you during the setup and, if needed, coordinate directly with your tax consultancy.