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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Research ReportGartner® research report shares expert advice on implementing a future-ready e-invoicing strategy.
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eBook
A Tax Leader’s Guide to Saving Money, Time & Resources with a Tax Engine
Discover how Vertex O Series reduces complexity and improves consistency across tax systems. -
Blog Post
Four on the Floor: Common Compliance Challenges in Manufacturing
Gunjan Tripathi identifies four tax compliance hurdles manufacturers must clear.