Title 26 › Subtitle Subtitle A— Income Taxes › Chapter 1— NORMAL TAXES AND SURTAXES › Subchapter R— Election To Determine Corporate Tax on Certain International Shipping Activities Using Per Ton Rate › § 1355
Shipping companies that choose a special tax election get their key terms defined here. A "qualifying vessel" is a self-propelled U.S. flag ship of at least 6,000 deadweight tons used only in foreign trade, meaning trips between the U.S. and other countries or between foreign places. A company "operates" a ship if it owns it, charters it, or runs it under an operating agreement. A ship chartered out to someone else can still count, but generally only if it is temporarily surplus and the charter lasts no more than 3 years, or it stays within the company's controlled group. The company must also pass an activity test: on average, at least 25 percent of its qualifying vessel tonnage must be owned or bareboat chartered, usually for each of the 2 years before the tax year. If a company temporarily stops operating a ship, or temporarily moves it into U.S. domestic trade, the ship can keep its qualifying status as long as the company notifies the IRS by its tax return due date and plans to resume foreign trade. That domestic-use grace does not apply if the ship runs in domestic trade more than 30 days in the year. A company can also elect to treat shipping on the Great Lakes Waterway and St. Lawrence Seaway as foreign trade for the vessel test. Partners in a partnership are treated as operating the partnership's ships based on their share of the partnership.
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Internal Revenue Code — Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 1355
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73