Why Tax and IT Need to Work Together When Connecting a Tax Engine to an ERP System

When IT and Tax work in silos, ERP projects suffer

Most ERP implementations are driven by IT teams working against tight budgets and firm deadlines. Tax is often brought in late, or not at all. The result is a patchwork of custom workarounds, copied settings, and manual processes that create real compliance risk. This eBook explains why Tax and IT need to align early, and how a shared business case for a dedicated tax engine benefits both teams.

The hidden cost of native ERP tax calculation

Standard ERP tax functionality can only evaluate a handful of data points per transaction. A Vertex tax engine considers 100 or more data elements to determine the right tax outcome, every time. That precision matters more than ever as tax authorities move toward real-time transaction reporting. Errors that once went undetected now surface quickly, and the consequences are harder to manage.

What Tax teams need to know

For tax professionals, connecting a tax engine during an ERP implementation (rather than after) is far easier to fund and execute. It also creates an opportunity to centralize and automate indirect tax operations, reduce manual corrections, and regain control over processes that have often drifted into local, undocumented workarounds. The eBook maps out the common tax challenges (coding errors, master data issues, content maintenance burdens) and shows how a tax engine addresses each one.

What IT teams need to hear

IT teams may view a third-party tax engine as added risk. This eBook makes the case that it actually reduces risk. A tax engine eliminates the need for IT to assess, document, and implement every tax law change across multiple ERP instances. It replaces fragile, country-specific customizations with a single, maintained solution that supports all connected systems, including SAP environments.

Why the provider you choose matters

Once both teams agree on the value of a tax engine, choosing the right provider is the next step. Vertex brings four decades of tax technology experience, support for all major ERP and financial systems, and expert services designed to keep your solution running with minimal ongoing involvement from Tax or IT.

If your organization is planning an ERP implementation, upgrade, or migration, this eBook gives you the tools to start the right conversation and build the business case to move forward together.