Methods, apparatus, and articles of manufacture for tax computation, management, and compliance reporting via a centralized transactional tax platform capable of incorporating transaction data and/or tax information from multiple locations and/or multiple business applications via a network architecture are disclosed herein. In one embodiment, a central server may be configured to execute an application to generate a user interface to enable configuration of tax compliance data via a network link, to receive transaction data from one or more client systems via the network, to calculate transaction taxes corresponding to the transaction data, and to store tax information, including outputs and computational logic generated by tax calculation engines executed by the server. In another embodiment, the tax calculations may be executed client-side, while administration of tax compliance data and reporting are facilitated by the central server.