Grant McCarthy Group
GMG focuses on helping clients with all business tax practices procedures, compliance, and multi-jurisdictional tax complexities. We assess situations to help our clients reduce their tax burdens and maximize their cash flow.
Providing technology enabled services to simplify tax complications and provide financial benefits.
GMG is committed to ensuring our clients only pay their fair share of tax. We leverage Vertex to deliver real time savings to clients and reduce the need for audits to determine areas of exposure or overpayment. Our services deliver quantifiable financial value.
Benefits of Our Partnership
Machine learning under the direction of experienced tax professionals.
Correction of ERP and tax determination engine rules reduces overpayments and underpayments.
Maintained by tax professionals utilizing technology to deliver streamlined results.
Resources for You
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Blog PostOliver Froelich on how manufacturers like Novartis boost resilience by embedding tax technology into SAP S/4HANA.
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Blog Post
Exchange Magazine Europe: October 2025
Explore tax technology and industry trends in Vertex’s Exchange Magazine -
Research Report
U.S. Exchange Magazine – October 2025
Welcome to Vertex U.S. Exchange Magazine—your source for insights and perspectives to lead in today's business world.