DuCharme, McMillen & Associates, Inc.

For over 25 years, Vertex and DMA have been working together to solve corporate tax challenges for North American organizations of all sizes by streamlining workflow and reducing risk associated with calculation, return, remittance and compliance.

Vertex Partner Alliances Ecosystem Hero

DMA and Vertex Alliance

Benefits of Our Alliance

With extensive knowledge of the Vertex Cloud capabilities and application programming interface, DMA leverages their tax technology and other subject matter experts to build robust custom Vertex implementation solutions.


DMA can help your company reduce costs, make better use of administrative resources, and minimize human errors. They have top-notch experience with all major Enterprise Resource Planning (ERP) and transaction tax software systems, enabling them to help you implement new systems or update and realign your existing system to meet current business requirements.

Areas of Focus

DMA focuses on six key areas of corporate taxation – property tax, sales/use and commodity tax, state income and franchise tax, tax technology, crown royalties, and unclaimed property.


Whether you have a specific internal implementation issue to resolve or need comprehensive turnkey services, DMA's technical and tax teams are prepared to tackle your project on time and on budget. DMA has extensive experience with Vertex implementation and Vertex integration projects.

System Optimization

Over time, demands on a business change and the current installation of your transactional tax software may no longer be aligned with the needs of the business. DMA regularly assists clients with the identification of performance gaps leading to the formulation and execution of a plan to not only bridge these gaps but also create a dynamic environment that can readily adapt to future changes.

Productivity Tools

DMA has developed a collection of aftermarket utility software applications specifically designed to complement your Vertex system. These utilities are used to extend the reach of your system into additional areas of compliance, internal reporting, audit defense, file and data management, as well as the automation of your system implementation.

Learn more about DMA: https://dmainc.com/services/tax-technology