The Next Chapter of U.S. International Tax: Key Regulatory Shifts You Can’t Ignore

Over the past few months, the Treasury Department and IRS have been releasing early regulatory previews under the One, Big, Beautiful Bill Act (OBBBA).

Individually, they look technical. Collectively, they represent the most significant shift in U.S. international tax rules since TCJA. And the message for global businesses is unmistakable:

𝐓𝐡𝐞 𝐨𝐥𝐝 𝐩𝐥𝐚𝐲𝐛𝐨𝐨𝐤 𝐟𝐨𝐫 𝐜𝐫𝐨𝐬𝐬-𝐛𝐨𝐫𝐝𝐞𝐫 𝐭𝐚𝐱 𝐩𝐥𝐚𝐧𝐧𝐢𝐧𝐠 𝐢𝐬 𝐟𝐚𝐝𝐢𝐧𝐠. 𝐀 𝐧𝐞𝐰 𝐨𝐧𝐞 𝐢𝐬 𝐭𝐚𝐤𝐢𝐧𝐠 𝐬𝐡𝐚𝐩𝐞.

𝐂𝐅𝐂 𝐃𝐢𝐯𝐢𝐝𝐞𝐧𝐝 𝐏𝐥𝐚𝐧𝐧𝐢𝐧𝐠 𝐈𝐬 𝐁𝐞𝐢𝐧𝐠 𝐑𝐞-𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐞𝐝

A major change is emerging around how dividends from foreign subsidiaries impact Subpart F and GILTI inclusions.

What used to be a reliable planning tool using well-timed CFC distributions to reduce U.S. taxable income may no longer work. Treasury is signaling a move toward a system where dividends that don’t ultimately increase the income of any U.S. taxpayer will not reduce Subpart F or GILTI.

This impacts:

• Tiered holding structures
• Partnerships and S-corps
• Grantor trusts
• Cross-border reorganizations

This isn’t a tweak. It’s a structural shift that directly affects M&A, cash-repatriation strategy, and year-end planning models.

𝐅𝐨𝐫𝐞𝐢𝐠𝐧 𝐓𝐚𝐱 𝐂𝐫𝐞𝐝𝐢𝐭 𝐓𝐢𝐦𝐢𝐧𝐠 𝐑𝐮𝐥𝐞𝐬 𝐀𝐫𝐞 𝐁𝐞𝐢𝐧𝐠 𝐓𝐢𝐠𝐡𝐭𝐞𝐧𝐞𝐝

Another regulatory preview focuses on when foreign taxes are considered paid or accrued. That timing determines whether a U.S. taxpayer actually gets the credit.

Misalignment can lead to:

• Wasted foreign tax credits
• Elevated GILTI exposure
• Higher residual U.S. tax
• Treasury’s direction is clear:

Foreign tax accruals, CFC taxable years, and U.S. inclusion years must line up more tightly.

This will push global tax teams to revisit:

• ETR forecasting
• FTC carryforward pools
• Intercompany tax alignment
• The era of generous timing mismatches is ending.

𝐅𝐃𝐈𝐈 𝐂𝐚𝐥𝐜𝐮𝐥𝐚𝐭𝐢𝐨𝐧𝐬 𝐀𝐫𝐞 𝐀𝐛𝐨𝐮𝐭 𝐭𝐨 𝐆𝐞𝐭 𝐍𝐚𝐫𝐫𝐨𝐰𝐞𝐫

The government is redefining what counts as deduction-eligible income (DEI) for FDII purposes and the base is shrinking.

Income from the sale, transfer, or disposition of:

• Intangibles
• Depreciable or amortizable property
• Depletable assets

will be excluded from DEI moving forward. This includes deemed sales, Section 367(d) IP transfers, and internal reorganizations—along with robust anti-abuse rules for group transactions.

For IP-heavy companies (tech, pharma, manufacturing, SaaS), FDII benefits may materially decrease unless structures adapt.

𝐖𝐡𝐚𝐭 𝐓𝐡𝐢𝐬 𝐌𝐞𝐚𝐧𝐬 𝐟𝐨𝐫 𝐆𝐥𝐨𝐛𝐚𝐥 𝐓𝐚𝐱 𝐋𝐞𝐚𝐝𝐞𝐫𝐬

Across all three areas, a consistent theme emerges:

• Less reliance on timing-based strategies
• More emphasis on economic substance
• More audit-ready documentation
• A narrower path to tax-efficient cross-border design

The window between now and 2026 is critical. Companies that model early, refresh their ETR assumptions, and update their global structures will be far better positioned than those waiting for final regulations.

My Take

We’re entering a new chapter of international tax, one that is more deterministic, more substance-driven, and more closely aligned with real economic activity.

For advisors, CFOs, and global controllers, this is not just a compliance challenge.

𝐈𝐭’𝐬 𝐚𝐧 𝐨𝐩𝐩𝐨𝐫𝐭𝐮𝐧𝐢𝐭𝐲 𝐭𝐨 𝐫𝐞𝐝𝐞𝐬𝐢𝐠𝐧 𝐬𝐦𝐚𝐫𝐭𝐞𝐫, 𝐦𝐨𝐫𝐞 𝐫𝐞𝐬𝐢𝐥𝐢𝐞𝐧𝐭 𝐠𝐥𝐨𝐛𝐚𝐥 𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞𝐬.