The program GSA Buchhalter was built for us internally to use with our company GSA, but was later made public since we saw the need for a tax program without a yearly license. However, it is only available in German language, and we don't plan to release it for the English market as we have no knowledge of other tax systems.


Manage all your finances in one application. Submit your reports to your finance office online and manage all of your accounts.


See all your in and outputs in a nice chart and react quickly on mismatches.

Setup for Elster

You can set up the ELSTER function very easily and later on send your tax reports directly to your tax office.
Registration Elster

Value Added Tax

Submit all your taxes online in an easy way with a click of a button.

Protocol of Tax Submission

Once you have submitted your tax reports online, you can see the results in a nice log as a proof.
Bank Report

Bank Account Activities

List all your activities and check your bookings easily and fast.

Customize Positions

Everything can be configured, even the different account types and the settings towards them.
Base Data


Creating a yearly income report for the tax office couldn't be easier.

Net Income Method

Calculate your different taxes for the tax office easily.


Calculate all the different ways on how to handle an investment tax based.

What can you Expect

Free Updates

Free Updates

All Updates are free. No extra costs for updates ever again. Buy once and use it forever.
Life time license

Life time license

No hidden costs or scheduled payments.
First Class Support

First Class Support

We are there for you almost the whole day. Just contact us via email or our webpage contact form. We have a huge community that helps you even if we are sleeping.
New features

New features

An update does not only come with bugfixes but almost always with new features.
Regular Updates

Regular Updates

There are several updates per month and new suggestions are welcome anytime.