Plain-English summary
Court affirms tax on U.S. shareholders’ share of foreign corporations’ undistributed income
The Supreme Court affirmed the Ninth Circuit, holding that the Sixteenth Amendment and federal tax law permit taxing U.S. shareholders on their pro rata share of certain undistributed income of American-controlled foreign corporations. The decision upholds the so-called mandatory repatriation tax.
Why this matters
The decision preserves a key tool in the U.S. tax code designed to prevent taxpayers from indefinitely sheltering corporate earnings abroad to avoid U.S. taxation. It affects how multinational corporate income is taxed and confirms Congress’s authority to tax certain foreign-sourced corporate earnings at the shareholder level even if the income remains undistributed.
Who may feel it
- U.S. shareholders of foreign corporations (especially those controlling the foreign entity)
- Multinational corporations and their tax advisors
- Tax practitioners and accountants
- Policymakers and federal tax administrators
Key questions
- Does the Sixteenth Amendment require that income be "realized" by an individual taxpayer (i.e., actually distributed) before Congress may tax it?
- Does attributing realized and undistributed income of a U.S.-controlled foreign corporation to its American shareholders and taxing those shareholders exceed Congress’s taxing power under the Sixteenth Amendment?