Abstract: Aspects of the present disclosure provide systems, methods, apparatus, and computer-readable storage media that support local and cloud-based tax determination operations. In some examples, a transaction system may execute a local tax engine to enable localized tax calculation services in a lightweight footprint while still achieving one or more benefits of a cloud-based system (e.g., technical support and automatic updates of software and tax content). As a result, some aspects of the present disclosure may enable a “full power” tax engine that is local to a transactional system, such as an edge device, while also enabling the tax engine to automatically sync back to a cloud-based system, such as to receive one or more of a configuration update, a software release, a software update, or updated tax content. Further, the transaction system may transmit results of tax calculations to the cloud-based system, such as for reporting, compliance, or both.