By The Editors

Written by The Editors

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The Treasury Department welcomed a revised international filing that spares U.S. companies from the OECD’s global minimum tax, cementing a carve-out Trump has pursued since his first day in office. Treasury announced it on Sept. 11.

Why it matters: For years, American multinationals faced foreign top-up taxes under a deal Washington never ratified. This locks in a shield that keeps U.S. firms under U.S. tax rules, not a global regime negotiated by other governments.

How it works

The deal being sidestepped. The OECD’s “Pillar Two” sets a 15% global minimum tax on large multinationals, agreed by more than 130 jurisdictions in 2021. The prior administration signed on. Congress never enacted it.

The escape hatch. A “side-by-side” framework treats U.S. companies’ top-up tax as zero under the two enforcement rules, the Income Inclusion Rule and the Undertaxed Profits Rule. American firms stay taxed by America, not by the countries where their rivals are headquartered.

The new document. The revised GloBE Information Return, released by the OECD and welcomed by Treasury, is the reporting machinery that puts the carve-out into practice.

The backstory

Day One order. On Jan 20, 2025, his first day back in office, Trump declared the OECD deal had “no force or effect” in the United States, setting this in motion.

A staged rollout. The carve-out was agreed politically at the G7 in June 2025 and formalized in OECD guidance in January. Friday’s filing operationalizes it, rather than announcing a new deal.

The America First frame. House Ways and Means Republicans branded the effort “unwinding Democrats’ unilateral global tax surrender.”

In Their Own Words

“President Trump made clear on his first day in office that the Biden Administration’s OECD global tax deal would have no force or effect in the United States,” Treasury Secretary Scott Bessent said. The revised return, he added, “ensures that U.S.-headquartered companies remain subject to U.S. global minimum taxes, not overlapping foreign regimes.”

How it was framed

• Critics say it guts the deal. The FACT Coalition argues the framework “preserves, but weakens, the global minimum tax,” letting U.S. firms avoid the very backstops meant to stop profit-shifting.
• Defenders say it costs little. The Tax Foundation notes U.S. companies already paid an effective rate above 15% on foreign income every year from 2012 to 2024, so the practical break is modest.
• It is not a full exit. Domestic minimum taxes in adopting countries still apply, reporting continues, and the whole arrangement faces a review by 2029.
• The compliance burden is real. A 2024 Deloitte survey found 70% of firms expected the OECD rules to cost them $500,000 or more a year just to comply, part of why relief from the overlapping regime drew corporate support.

What’s in it for Americans

The principle here outlasts the paperwork. A tax on American companies, written by a body America does not control and never ratified through Congress, is a claim on U.S. sovereignty. Declining it is not a loophole. It is a decision about who gets to tax American firms.

The 2029 review will test whether the carve-out holds. For now, Washington has drawn a line: the American tax base answers to Washington.

-The Editors

Energy & Manufacturing · Politics · Upstream of the Swamp · September 13, 2026

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