Case Study: STMicroelectronics achieves faster, more auditable tax reporting with Dundas

How STMicroelectronics Engineered a Modern Tax Close Streamlining Pillar 2 and Provisioning With Longview Tax Automation

STMicroelectronics, a global semiconductor manufacturer operating in more than 38 countries, needed to modernize a highly manual tax provisioning process built on 70+ Excel files. The company was under growing pressure to deliver accurate, auditable reporting for US GAAP, IFRS, and new Pillar 2 requirements, while reducing risk and keeping pace with global compliance demands.

Dundas helped STMicroelectronics implement Longview Tax, replacing spreadsheet-driven workflows with a more controlled tax data management process. The result was faster and more reliable reporting: Pillar 2 tax charges can now be booked within one week of financial close, manual effort was reduced, and data quality, traceability, and auditability improved significantly, strengthening SOX compliance.

STMicroelectronics

Elise Gouin

Senior Tax Accounting Manager