Series 31 - The Decoupling Imperative: Why Tax Logic Must Leave the SAP Core for Good

Decoupling compliance from the SAP core is, in its simplest form, the replacement of a single integrated system with a two-component system: the SAP core handles financial accounting, and the compliance engine handles compliance. In practice, it is a programme that touches the SAP configuration, the integration architecture, the compliance vendor relationship, the IT governance model, the tax team...

The debate this episode stages is one that every organisation undertaking a SAP compliance decoupling project eventually faces, usually under time pressure and with real consequences: is the primary success factor in a decoupled SAP compliance architecture the quality of the architecture, or the quality of the tax expertise that operates within it? The architecture position argues that a correctly...

The critique of how most organisations are currently approaching the decoupling of tax logic from the SAP core is not that they are doing it — more are doing it now than at any previous point, driven by the pressure of CTC mandates and the visible failure of embedded configurations when mandates change. The critique is that most organisations are decoupling reactively rather than proactively, and...

The argument for decoupling tax logic from the SAP core has been made in compliance circles for years. What has changed is the consequence of not doing it. In a periodic compliance environment, embedded tax logic was a maintenance problem: the configuration was difficult to update, the regression risk of SAP upgrades was real, and the cross-jurisdiction consistency was hard to maintain — but none...