Abstract: An exemplary method includes a computing system accessing inventory data maintained in a repository of inventory data, the inventory data maintained for use in determining tax revenue to be collected from at least one customer, and auditing the inventory data, the audit including accessing a data record included in the inventory data, subjecting the data record to at least one of a validation process, a range split condition check process, and a tax code identifier check process, and generating output data representative of a result produced by the at least one of the validation process, the range split condition check process, and the tax code identifier check process. When the result indicates an error condition, the output data is configured to facilitate a correction of the error condition in the inventory data included in the repository of inventory data. Corresponding methods and systems are also disclosed.