Case Study
Lhoist “co-sources” monthly compliance with Vertex
Lhoist, an international manufacturer of lime and mineral products, outsourced its sales tax compliance to Vertex to free up its small tax department for more strategic work. After using a different provider for ten years, they switched to Vertex due to rising fees and service issues. The transition was smooth, with Vertex handling over 500 annual returns, payments, and notices. The outsourcing process allowed Lhoist to reduce compliance time while maintaining visibility and control. Lhoist emphasizes the importance of a collaborative "co-sourcing" approach, where the tax team actively engages with the service provider to ensure a successful partnership.