Worldwide Combined Reporting
Corporate Income Tax Filing Methods: States with Water’s Edge or Worldwide Combined Reporting
February 21, 2025 • By ITEP Staff
The purpose of state corporate income taxes is to tax the profit, or net income, an incorporated business earns in each state. Ascertaining the state where profits are earned is, however, complicated for companies that conduct business in multiple jurisdictions. Twenty-eight states plus D.C. now require a limited version of combined reporting called “water’s edge” […]
A Revenue Analysis of Worldwide Combined Reporting in the States
February 20, 2025 • By Carl Davis, Matthew Gardner
Universal adoption of mandatory worldwide combined reporting would boost state corporate income tax revenues by roughly 14 percent. Thirty-eight states and the District of Columbia would experience revenue increases totaling $19.1 billion.
Five Things to Know About Tax Foundation’s Critique of Maryland’s Worldwide Combined Reporting Proposal
April 1, 2024 • By Carl Davis, Matthew Gardner
Maryland lawmakers are considering enacting worldwide combined reporting (WWCR), also known as complete reporting. This policy offers a more accurate, and less gameable, way to calculate the amount of profit subject to state corporate tax. Enacting WWCR in Maryland would represent a huge step toward eliminating state corporate tax avoidance as it neutralizes a wide […]
Far From Radical: State Corporate Income Taxes Already Often Look Beyond the Water’s Edge
November 7, 2023 • By Carl Davis, Matthew Gardner
State lawmakers are increasingly interested in reforming their corporate tax bases to start from a comprehensive measure of worldwide profit. This provides a more accurate, and less gameable, starting point for calculating profits subject to state corporate tax. Mandating this kind of filing system, known as worldwide combined reporting (WWCR), would be transformative, as it would all but eliminate state corporate tax avoidance done through the artificial shifting of profits into low-tax countries.
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