Case Study: Lhoist achieves streamlined monthly tax compliance and 24/7 visibility with Vertex Inc.

Lhoist Co-Sources Monthly Compliance With Vertex

Lhoist, an international manufacturer of lime and mineral products with more than five U.S. entities filing over 500 sales tax returns a year, needed to stop maintaining in‑house expertise and software for monthly sales, income and property tax compliance. After an RFP focused on accuracy, continuity, security and end‑to‑end service, Lhoist selected Vertex to provide Vertex® Sales & Use Tax Returns Outsourcing.

Vertex implemented a secure, end‑to‑end outsourcing solution—Lhoist exports tax data from SAP to Vertex’s portal, Vertex prepares and files returns, manages payments and state notices, and posts confirmations and archived data for 24/7 visibility—with a dedicated account team and a transition completed in weeks. As a result, Vertex now manages Lhoist’s monthly compliance (500+ returns/year), reduced time the small in‑house tax team spends on routine filings and notices, improved accuracy and transparency, and freed staff to focus on higher‑value, strategic work.

Lhoist

Genice Joyce

Tax Manager