The present invention provides a system and method of generating a set of tax schedule information comprising: (a) providing an Excel interface, the Excel interface being associated with a set of commands and functions; (b) accessing a separate database, the separate database storing a set of data, the set of data having been defined using the set of commands and functions; (c) manipulating the set of data according to the set of commands and functions to generate the set of tax schedule information; and (d) storing the set of tax schedule information in a separate database. This embodiment may further include one or more of the following: using at least one entry from the set of tax schedule information to populate a tax schedule; wherein the separate database is an XML database; wherein the set of tax schedule information is based, at least in part, on a set of tags associated with the XML database.