Case Study: Clean Harbors achieves automated, single-system tax provision and compliance with CSC Corptax

Clean Harbors Simplifying Tax with a Single System

Clean Harbors, a leading provider of environmental, energy, industrial and waste management services, outgrew its Excel-based tax provision process after several acquisitions and found its Vertex software lacked a robust provision solution. The tax team faced massive spreadsheets, manual rekeying, calculation errors, auditor pressure for automation, and an inability to lock down returns — problems that led Clean Harbors to select CSC Corptax (including Corptax Office) for a single, integrated provision and compliance system.

CSC Corptax implemented a single-database Corptax solution that automates data import, calculations, reconciliations and true-ups, lets users enter data once for provision, compliance and planning, and provides audit trails and built-in security. As a result, Clean Harbors eliminated much of the manual rekeying between Excel and compliance, reduced errors and review time, gained data-rich reporting for the first time, and achieved greater confidence in locked returns — delivering clear time savings and improved accuracy through CSC Corptax.

Clean Harbors

Brett Dowsett

Vice President of Tax