The invention is a system or method (collectively the "system") for calculating transaction-based taxes, such as use tax and sales tax. Some of the data used to generate a tax calculation relate solely to the particular transaction. Other data can be potentially be used for several different transactions,...http://www.google.de/patents/US20040030619?utm_source=gb-gplus-sharePatent US20040030619 - System and method for calculating transaction-based taxes
