Bloomberg Tax Unveils Controlled Calculations for Bloomberg Tax Workpapers

State and Local Taxes | August 17, 2026

Bloomberg Tax Unveils Controlled Calculations for Bloomberg Tax Workpapers

The new capability helps corporate tax teams perform multiple complex state tax calculations with greater confidence, transparency, and efficiency.

Isaac M. O'Bannon

Bloomberg Tax has launched Controlled Calculations for Bloomberg Tax Workpapers, a new capability that helps corporate tax teams perform multiple complex state tax calculations with greater confidence, transparency, and efficiency.

Many tax departments still rely on sprawling spreadsheets to manage complex state tax calculations. As organizations grow, those manual processes become increasingly difficult to scale. Maintaining formulas across jurisdictions is time-consuming, increases the risk of errors, and pushes spreadsheets beyond what they’re designed to handle.  Controlled Calculations replaces those manual processes with a governed calculation environment that provides system-maintained tax rules, including general state apportionment rules, while allowing tax teams to customize calculations based on their specific business needs.

“The future of tax isn’t about building better spreadsheets, it’s about giving professionals better ways to navigate complexity,” said Evan Croen, head of Bloomberg Tax. “Controlled Calculations brings trusted tax intelligence, governed calculations, and connected workflows together so tax teams can spend less time maintaining formulas and more time applying their expertise.”

Unlike traditional spreadsheet-based processes, Controlled Calculations embeds system-maintained tax rules directly into the workflow while maintaining flexibility for organization-specific requirements. Built-in auditability provides visibility into every override, adjustment, and calculation throughout preparation and review.

Key capabilities include:

  • Governed state income tax calculations with system-maintained tax rules
  • Flexible support for organization-specific business logic and calculation structures
  • Built-in auditability and traceability throughout preparation and review
  • Connected workflows across Bloomberg Tax Workpapers, Bloomberg Tax Research, and Bloomberg Tax Provision
  • Controlled Calculations expands Bloomberg Tax Workpapers as the operational hub of Bloomberg Tax’s Suite of Solutions, connecting trusted research, governed calculations, and tax provision in a unified workflow. Together, these capabilities help tax teams improve accuracy, reduce manual effort, and move from research to reporting with greater confidence.

For more information about Bloomberg Tax Workpapers, visit https://aboutbtax.com/bmzS.

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Isaac M. O'Bannon

Isaac M. O'Bannon

Managing Editor

Isaac M. O'Bannon is the managing editor and digital content manager for CPA Practice Advisor (www.CPAPracticeAdvisor.com), drawing on two decades of experience covering the areas of professional accounting, taxation, business productivity and consumer technologies. . Prior to CPA Practice Advisor, O'Bannon was a consultant at firms in San Francisco, Denver and Tulsa, serving clients that included Logitech, Polycom, Hilti, Microsoft, the Stanford Research Institute, the University of Oklahoma's College of Engineering and other technology leaders. He is a U.S. Navy groundforces veteran (never a SEAL). Email: isaac.obannon - @ - cpapracticeadvisor.com . Isaac OBannon 2019 Cropped Small Headshot