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