International Tax Current Developments

The core question is whether recent U.S. and OECD changes upset the private equity preference for inbound acquisition structures. OBBBA improves U.S.-parented structures by eliminating interest expense allocation to NCTI for foreign tax credit limitation purposes, and the Pillar Two side-by-side rules can exempt certain U.S. groups from the income inclusion rule and undertaxed profits rule. But the article's point is that the old inbound preference is resilient because new problems remain: OBBBA may shift interest expense into U.S.-source income and create overall domestic loss effects, inbound structures may benefit from broad U.S. partnership UPE treatment under side-by-side rules, and U.S. investors may still face dry income issues when CFC mechanics apply. The article's example of a leveraged U.S.-parented buyer is useful: removing interest allocation to NCTI helps, but the same interest can create U.S.-source loss dynamics that require deeper modeling. Senior partners should not tell clients that OBBBA makes U.S.-parented PE structures obviously better; the action is to re-run the structure model with FTC capacity, ODLs, Pillar Two status, investor dry income, and exit taxes side by side.

Private equity sponsors, portfolio company buyers, and U.S. investors in acquisition funds need updated modeling before choosing between inbound and U.S.-parented structures. A U.S.-parented structure may look more attractive because NCTI no longer absorbs interest expense for Section 904 limitation purposes after 2025, but the article warns that overall domestic loss mechanics and U.S.-source income allocation can erode that benefit. Conversely, inbound structures remain attractive because they often avoid direct U.S. ownership of CFCs, can reduce GILTI or NCTI exposure at the portfolio level, and may still fit within the Pillar Two side-by-side exclusion where a U.S. partnership is the ultimate parent entity. The business impact is deal economics: small changes in FTC limitation, BEAT/NCTI modeling, investor inclusions, or exit withholding can change bids, leverage capacity, and after-tax returns. Clients planning acquisitions or exits should not rely on pre-OBBBA structuring templates.

The core issue is the last mile of Pillar Two compliance, not the tax rate. Many groups have calculated their 2024 GloBE exposure, but the article explains that the filing mechanics are where failures now arise: central GIR filing works only when the relevant jurisdictions have activated exchange agreements, some countries require separate local GIR filings, and notifications submitted months ago may now be wrong. For example, a group that expected to file one central GIR through its parent jurisdiction may still need full local filings in jurisdictions such as the Bahamas, North Macedonia, the Slovak Republic, or Vietnam if exchange agreements are not active. That turns a global minimum tax project into a governance and deadline-control problem. Senior partners should use this article to ask whether affected clients can prove, jurisdiction by jurisdiction, where the GIR will be filed, whether notifications match that plan, and who owns last-mile execution before June 30.

In-scope multinationals face exposure even when the Pillar Two tax computation is under control. A client can have the right GloBE calculation and still incur penalties if a local filing is missed, a notification names the wrong filing jurisdiction, or an XML submission cannot be accepted. The article gives a concrete example: Luxembourg can impose penalties of up to EUR 300,000 if an expected GIR exchange does not occur and the group cannot prove a local filing, and even per-entity notification penalties can become material across large structures. This affects tax operations, finance governance, and audit committee reporting because the risk is procedural and evidentiary as much as substantive. Clients with broad entity footprints need a central readiness map that reconciles registrations, notifications, GIR filing locations, top-up tax returns, local deadlines, and exchange agreement status.

The core concept is that Section 987 is shifting from a highly operational FEEP regime toward a more administrable elective equity and basis pool method, while preserving the 2024 transition framework. Notice 2026-17 allows reliance on forthcoming rules for Sections 3 and 4 if applied consistently across the taxpayer's Section 987 electing group, but the CFC election previewed in Section 5 is not yet available. The practical example is a U.S. corporation with a yen-functional QBU: instead of daily remittance tracking, the notice points toward annual net remittance and balance-sheet pool computations, which may be far easier for frequent intercompany transfers. This is not just simplification; it is a method-selection decision with tax-outcome consequences. Senior partners should treat the article as a prompt to identify clients that were building FEEP compliance processes and ask whether the new election could reduce burden without producing worse gain or loss results.

Clients with foreign branches, QBUs, or CFC-owned branches may need to reassess work already done under the 2024 final regulations. The notice may reduce compliance burden through the equity and basis pool method, narrower loss suspension rules, higher and more targeted suspension thresholds, collapsed recognition groupings, and a future CFC election that could eliminate ongoing Section 987(3) calculations except for specified inbound transactions. For example, a client with a high-volume foreign branch that expected to track daily remittances under FEEP may now evaluate whether an equity and basis pool election with a current rate election is more manageable. But the answer is not automatic: the article explains that FEEP, modified FEEP, current rate elections, annual recognition elections, and the new pool method can produce different outcomes depending on whether gains or losses are expected. The client impact is a blend of compliance relief, election discipline, transition balance tracking, and financial-statement modeling.