On the Map Corporate Taxes

February 21, 2025

Revenue Effect of Mandatory Worldwide Combined Reporting by State

Universal adoption of mandatory worldwide combined reporting (WWCR) in states with corporate income taxes would boost state tax revenue by $18.7 billion per year. The revenue effects of mandatory WWCR would vary across states. We estimate that 38 states and the District of Columbia would experience revenue increases totaling $19.1 billion. The top 10 states […]
February 21, 2025

Corporate Income Tax Filing Methods: States with Water’s Edge or Worldwide Combined Reporting

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” […]
March 7, 2023

Which States Have Tax Cut Triggers or Phase-ins?

In recent years, lawmakers have been quick to push for phased-in tax cuts or cuts attached to trigger mechanisms. These policy tools push the implementation of tax cuts outside of the current budget window with a predetermined phase-in schedule or a mathematical formula tied to state revenue trends.
July 26, 2019

Combined Reporting Lessens Corporate Tax Avoidance at State Level

"Combined reporting" lessens the effectiveness of a tax avoidance scheme known as income shifting, in which large multi-state corporations dubiously claim that their income was earned in states with little or no corporate income tax.
May 12, 2019

How Heavily Does Your State Rely on Corporate Income Taxes?

Corporate income taxes are an important source of revenue for state governments and ensure that profitable corporations benefiting from public services pay toward the maintenance of those services.

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