EY Global Tax Platform

Multinational organizations need access to real-time global data that offers clear insights into opportunities, obligations and risks. The EY Global Tax Platform (GTP) redefines how tax operates, offering an innovative end-to-end platform that supports all your tax business solutions.

What EY can do for you

In the complex global tax landscape, multinational organizations need access to real-time global data that offers clear insights into their opportunities, obligations and risks. While some service providers claim to have technology that can tackle this challenge, EY Tax offers end-to-end capabilities to support your worldwide tax function. Over the last several years, we have invested in core data management capabilities, developing an innovative end-to-end platform that supports all tax business solutions – the EY Global Tax Platform.

EY Global Tax Platform (GTP)

Built by leveraging our technology and managed services domain knowledge, GTP redefines how tax operates, utilizing Microsoft Azure cloud technology to gather and store data in a safe, secure environment. GTP combines a common data platform with the power of dashboards, reporting and advanced analytics to better support your evolving needs. By gathering data from disparate systems and sources into one seamless platform, you can transform data into insights that will support informed decisions.

GTP also integrates with leading-class tax reporting software to provide coverage for your global footprint. GTP helps you address your global tax challenges cost efficiently and allows your tax function to focus on what it does best: driving value through planning.

EY Gloal Tax Platform

What is GTP?

GTP, a cloud-enabled platform, leverages secure Microsoft Azure cloud infrastructure to store your data in a data lake repository. This offers your tax team one real-time portal and provides transparent visibility through dashboards that analyze workflow and process.


We know your data comes from all kinds of sources, structured and unstructured. Regardless of the source, your data can be integrated into GTP.


To integrate your data, we use our gather function to collect the data and enable it to be used across all geographies, functions and services. We collect data one time and reuse.


Next, we transform your data to allow storage in a standard data model and to run exception-based validations to look for missing information, anomalies and inaccuracies.


Once GTP has your information, GTP supports your efforts to reduce risk and drive value for your organization. It drives analytics with Power BI visual dashboards, reports, and the use of machine learning and artificial intelligence technologies.


Since the platform is tax software agnostic, GTP allows for scalability and flexibility. Calculations are performed with the right software for the right geography and the right service. GTP also allows real-time adjustments to workpapers and underlying data, and maintains a record of any adjustments.


GTP enables everything from simple co-sourcing to full managed service, including compliance, tax accounting, planning and controversy.

User experience and benefits

Benefits of GTP

Mitigate risk

By giving you real-time access and transparency, GTP helps mitigate risk. Our portal enables you to be proactive and know exactly which filing may be missing or late, and which steps are incomplete or in process. You can also see roadblocks, and specific bottlenecks, across a project or engagement. Finally, you have a record of changes if questions arise later. Because the portal is dual-sided, clients and EY teams see the information and source data in real time.

Control cost

With your data stored in a central data lake, you can repurpose the data for different projects, and avoid requesting or collecting data more than once. Utilizing direct data acquisition, we can further automate data gathering, reusing structured data. This supports not only compliance, but also planning while delivering additional insights. Also, GTP allows clients and the organization to easily scale up or down by using the best talent across the globe for projects, within your organization or ours. As the legislative environment becomes more complex, GTP also helps future-proof your tax department and avoid unnecessary or redundant technology maintenance and investments.

Drive value

GTP analytics generate real-time exception-based insights at your fingertips to support your planning efforts and enable you to take action immediately. Ultimately, by streamlining and automating your time-intensive tasks, GTP frees your people to address higher value-added projects such as developing plans to keep pace with new tax developments and support audit controversy.

What differentiates GTP

  • GTP is built by EY, leveraging our technology and managed services domain knowledge, focusing on the tax requirements of today and with a vision of the capabilities that will be needed in the future.
  • GTP is “future-proof” as it is a true data management platform that integrates state-of-the-art engines in a componentized manner, enabling to quickly update and replace old technologies with new ones in a plug-and-play fashion.
  • GTP is powerful data management technology that supports data collection and reuse for end-to-end delivery of tax services, storing all relevant data in a single technology platform.
  • GTP is tax software agnostic and integrates with leading-class tax engines.
  • By leveraging our strategic global alliances, GTP provides you with leading technology to support your tax success.
  • GTP enables you to benefit from investments EY has made and shared across our core business, reducing major investments to develop and maintain your own tax technology systems.

The EY Global Tax Platform represents a major step forward for your global tax function and establishes a new standard for tax technology excellence. Our GTP-enabled tax services help you enhance your tax function by reducing risk, enabling cost-efficient tax operations and providing you the analytics and knowledge to drive more tax value.

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