You are currently seeing the German version of our site. Do you want to switch to the English version?

Switch to English.

XDEV BZSt DIP Java Client

Library for data transmission to the Digitalen Posteingang des Bundeszentralamts für Steuern (BZSt DIP)

With the XDEV BZSt DIP Java Client, your bulk data (Massendaten) can be easily transmitted to the Digital Inbox of the Federal Central Tax Office (Digitalen Posteingang des Bundeszentralamt für Steuern).

The client offers a easy to understand, strongly typed API which simplifies the use of the BZSt DIP interface.

The library can be used free of charge and has been published as open source under the Apache 2.0 license: GitHub repository
This means that the complete source code can be viewed and used. The client can also be modified and used for commercial purposes.


What is the BZSt DIP?

The Federal Central Tax Office (BZSt) has developed the Digital Inbox (DIP) as a mass data interface for the BZSt online.portal.

From the BZSt Website:  

In Germany, income from capital is subject to a 25% withholding tax plus a solidarity surcharge of 5.5%. In general, this applies regardless of whether the recipient (creditor) of the domestic income is resident in Germany or abroad.

Capital income recipients who are resident outside of Germany can obtain relief from capital income tax by using the “electronic procedure” to receive an exemption from withholding in advance or to receive a refund for capital income tax that has already been withheld and remitted to the tax authorities.

In any case, refund applications must include a certificate of residence and all relevant tax certificates. Applications cannot be processed without these records.


Frequently Asked Questions

Can I use the XDEV BZSt DIP Java Client free of charge?

Yes, we provide the XDEV BZSt DIP Java client free of charge together with the entire source code.

Under which license is the XDEV BZSt DIP Java Client released?

The XDEV BZSt DIP Java Client is available under the Apache License 2.0.

The Apache License 2.0 allows the client to be modified, distributed and used for commercial purposes.

Download XDEV BZSt DIP Java Client

You can download XDEV BZSt DIP Java Client through GitHub.


We suggest the integration through maven, which is described in detail in the GitHub-Repository


Downloadable anytime

Our code of the libraries is hosted on GitHub. 
Binaries are available through Maven: