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 PostWhat businesses need to know about Belgium’s e-invoicing and upcoming eReporting regulation changes.
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Blog Post
Global E-Invoicing Compliance: June 2026 Regulatory Update
Global e-invoicing mandates, Peppol, and data validation are driving real-time tax compliance complexity. -
Blog Post
E-Invoicing Compliance in 2026: The Reality for Tax, Finance, and IT Teams
E‑invoicing requires shared ownership, governed data, and scalable compliance to be successful.