The purchase price also included cash, but Avalara is not disclosing the amount. The Matrix Master database provides taxability content and tax rates behind 10 million UPC codes and the sales-and-use tax software publisher says its purchase was part of its move to become known as a content provider, not just as a technology company. Matrix Master is purchased via subscription by several large retailers while Avalara is integrating the database in its product line for use by smaller organizations.