Our Services

Emerald Isle Technology (EITax) is a professional services organization who specializes in the integration and implementation of Vertex Indirect Tax solutions, modified to meet the unique needs of our clients’ industries. EITax professionals have extensive experience integrating Vertex with multiple ERP systems (SAP, Oracle, PeopleSoft, JD Edwards, Microsoft Dynamics, Lawson) for solutions to address sales tax, consumer use tax, lease tax and VAT.

EITax is capable of supplying consultants with direct experience working with Vertex Indirect Tax solutions including Vertex O Series, Vertex Q Series, Vertex L Series, Vertex Indirect Tax Links for Oracle and SAP, Vertex Exemption Certificate Manager and Vertex Returns.

The following are a list of some of the most common professional services requested:

  • Complete setup and integration of Vertex with SAP/Oracle including Vertex Tax Links
  • Vertex Tax Functional Consulting including Taxability Mappings, Tax Assists Rules and other custom development
  • Vertex Tax Process Optimization Consulting Services
  • Vertex Tax Data Management Analysis Consulting Services
  • Vertex Tax Compliance Consulting Services
  • Vertex Production Support Services
  • Independent Vertex Quality Assurance Assessment Consulting Services
  • Reconciliation of ERP systems GL to the Vertex Tax Journal
  • Staff Augmentation for Vertex Projects
  • Vertex Project Management
  • Global Tax Services
  • Tax systems Architecture
  • Project Management
  • Operational Hosting, Management and Administration of Vertex Tax Systems

Service Examples

ERP Systems Integration

EITax can implement a new Vertex solution, audit existing systems and implement tax solutions for client specific needs. The systems integration experience includes such specifics as SAP RFC, Oracle OIC and Oracle/SAP Tax Links setup. In addition EITax will also assist with Tax/legacy data conversion and/or archival of systems based on the business need.

Optimization & Upgrading Software

EITax consultants are experts in performing Vertex support upgrades and implementing software patches. An on-site tax system assessment and business readiness review ensure that the standard as well as the appropriate customization is setup in an accurate manner so tax calculations are accurate and potential financial penalties are avoided.


Our EITax team is experienced with tax calculation performance optimization as well as upgrade of Tax decision software solutions for optimal results. Our consultants will customize your tax software system to create automated reports that satisfy your audit and compliance needs.

Value Added Taxes (VAT)

EITax consultants are experienced managers of VAT related issues. Consultants are experienced advisors in initial expansion planning, identification of VAT opportunities and risks and VAT compliance requirements. Our involvement in global operations has provided in-depth knowledge of America’s, LATAM, APAC and EMEA solutions.