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GILTI Rules: How Offshore Corps Are Taxed for US Persons

The GILTI rules for US persons (IRC §951A) are a critical consideration in international crypto wealth planning: they require US shareholders of a controlled foreign corporation to include a calculated share of its offshore earnings in US taxable income each year, whether or not anything is distributed. The deferral that once made offshore corporations attractive to US persons generally does not survive GILTI.

What Are the GILTI Rules and Why Do They Matter for US Persons?

GILTI was enacted as part of the Tax Cuts and Jobs Act of 2017 to eliminate deferral on certain foreign corporate income. Before GILTI, a US person could own a foreign corporation in a low-tax jurisdiction, accumulate profits inside it, and pay US tax only when dividends were eventually paid out. GILTI closed that gap by treating a portion of CFC income as currently taxable to the US shareholder, even if nothing is distributed.

The term "global intangible low tax income" is technical. In practice it captures most passive income and service income earned inside a CFC that is not attributable to tangible assets the company actually owns and operates.

What Is a Controlled Foreign Corporation (CFC)?

A CFC is a foreign corporation in which US shareholders (each owning 10% or more of voting power or value) together own more than 50% of the stock. A single US person owning more than 50% of a foreign company controls a CFC.

How Is GILTI Calculated?

GILTI equals a CFC's "tested income" minus a 10% deemed return on the CFC's qualified business asset investment (QBAI), the adjusted tax basis of its tangible depreciable property. The portion that exceeds this deemed tangible return is the GILTI inclusion.

Simplified illustration (figures are illustrative only, verify current rules with a cross-border tax advisor):

Item Amount
CFC net tested income $200,000
QBAI (tangible assets) $0 (passive / service company)
Deemed tangible return (10% × QBAI) $0
GILTI inclusion $200,000

A CFC owning substantial equipment, real estate, or inventory reduces its GILTI inclusion because more income is attributed to the tangible return. A shell holding passive investments or a pure-service business typically has little or no QBAI, so nearly all tested income is GILTI.

What Is the §250 Deduction?

For C corporations only, IRC §250 allows a deduction equal to 50% of the GILTI inclusion (dropping to 37.5% after 2025 under current law, verify current rates). This can effectively reduce the federal rate on GILTI for corporate shareholders. Individual US shareholders do not get the §250 deduction directly; they are taxed at ordinary income rates on the full inclusion unless they make a §962 election (consult a qualified cross-border tax professional for applicability). The §250 deduction percentages and effective rates are subject to legislative change, including the scheduled post-2025 step-down noted above; treat all rates as illustrative and verify against current law.

What Is the High-Tax Exclusion?

Regulations under §954(b)(4) allow a CFC's income to be excluded from GILTI if it was subject to foreign tax at an effective rate exceeding 90% of the US corporate rate, generally above roughly 18.9% under the current 21% corporate rate. The exact threshold moves with the US corporate rate in effect, so verify the current figure. This exclusion requires an annual election and applies item by item; it is not automatic.

Why Offshore Corporations Often Create More Problems Than They Solve Now

The compliance burden of a CFC has not changed: US shareholders must still file Form 5471 (Information Return of US Persons With Respect to Certain Foreign Corporations), FinCEN 114 (FBAR) if foreign financial accounts exceed reporting thresholds, and Form 8938 (Statement of Specified Foreign Financial Assets) if applicable. These carry significant penalties for failures.

What has changed is the tax benefit side of the ledger. The promised deferral largely disappears for:

  • Passive investment income (dividends, interest, capital gains inside the CFC)
  • Service income from businesses with minimal tangible assets
  • Royalty and IP income not meeting specific requirements

Offshore structures can still serve legitimate non-tax purposes, asset protection under strong creditor-protection laws, operational businesses in countries where the company genuinely operates, and multi-jurisdictional family structures requiring foreign entity layers. But any analysis must start with current law, not strategies designed before 2018.

For crypto tax planning for high-net-worth investors, this matters directly: holding digital assets inside a CFC does not defer US tax on gains or income under GILTI or the related Subpart F rules (IRC §§951–965). Coordination with a cross-border tax professional is required before establishing any offshore structure around digital asset holdings.

What Legitimate Uses Remain for Foreign Corporations?

This is not a condemnation of all foreign entities, it is a reminder that the analysis must account for GILTI, Subpart F, PFIC rules (for foreign investment companies), and applicable tax treaties. Potential legitimate uses include:

  • Active foreign operations: A CFC with employees, equipment, and genuine business activity in a foreign country may have meaningful QBAI, reducing GILTI.
  • High-tax jurisdictions: Income subject to meaningful foreign tax may qualify for the high-tax exclusion or generate foreign tax credits that reduce US liability.
  • Treaty planning: Some bilateral tax treaties alter CFC or withholding treatment; treaty analysis requires qualified cross-border counsel.
  • Non-tax objectives: Asset protection, succession planning in multi-jurisdictional families, or operational requirements unrelated to deferral.

Structure decisions for high-net-worth families often involve comparing a foreign entity against trust structures for crypto-wealthy individuals or whether crypto should be held personally, in an LLC, or in a trust. Each option carries different tax, compliance, and asset-protection trade-offs.

Common Errors That Create Expensive Problems

For common crypto tax record mistakes that compound in a CFC context, the most frequent include:

  1. Failing to file Form 5471 (penalties start at $10,000 per failure, per year, verify current penalty schedule).
  2. Treating undistributed CFC income as deferred without calculating GILTI.
  3. Using a §962 election without modeling the downstream impact on dividend basis.
  4. Missing the annual high-tax exclusion election.
  5. Ignoring Subpart F income (certain passive income is taxed currently under separate rules independent of GILTI).

Crypto planning for CPAs engaging clients with CFC structures requires fluency in both Subpart F and GILTI mechanics, as the two regimes overlap but are not identical.

How Tax Coordination Fits Into Cross-Border Wealth Management

GILTI is one layer. Cross-border families also face foreign inheritance taxes, currency controls, local reporting requirements, and the interaction between foreign tax credits and the GILTI inclusion. DAG coordinates family office services with cross-border tax professionals who can model the full picture, structure by structure, jurisdiction by jurisdiction, so families are not surprised by obligations built into the wrong entity choice.

Crypto tax reporting for trusts and crypto trust structures compared are relevant if the analysis involves layering a domestic trust above or alongside a CFC.

Related Questions

Does GILTI apply to individual US shareholders, or only corporations?

GILTI applies to any "US shareholder" of a CFC, which includes individuals, trusts, and estates, not only corporations. The §250 deduction is only available directly to C corporations. Individual shareholders may make a §962 election to be taxed as if a corporation and access the §250 deduction, but this has downstream consequences on dividend distributions. Consult a cross-border tax professional before making this election.

Can a US person avoid GILTI by owning less than 10% of a foreign company?

The CFC rules apply when a US shareholder (defined as owning 10% or more) collectively own more than 50% of the foreign corporation. Dropping below 10% ownership removes CFC shareholder status for that individual, but the foreign company may still be a CFC with respect to other US shareholders. If the foreign entity is a PFIC (passive foreign investment company) rather than a CFC, separate and often punitive rules apply under IRC §1291 et seq.

What is the difference between GILTI and Subpart F income?

Both are anti-deferral regimes that tax US shareholders of CFCs currently. Subpart F (IRC §§951–965), which predates GILTI, applies to specific categories of passive income, foreign personal holding company income, certain sales income, and services income. GILTI, added in 2017, acts as a broader residual catch: it captures tested income that is not already Subpart F and exceeds the deemed tangible return. Both regimes can apply to the same CFC in the same year on different income items.

Does renouncing US citizenship eliminate GILTI exposure?

Renouncing citizenship or long-term permanent resident status triggers the expatriation tax regime (IRC §877A), which treats all property as sold at fair market value on the day before expatriation ("exit tax"). This is a significant, irreversible step with its own complex rules. It does not eliminate GILTI exposure for years prior to expatriation, and it does not resolve tax obligations already accrued. This requires qualified tax and legal counsel, not general financial planning.

Sources

Compliance Note

This page is for general educational purposes only. It does not constitute tax, legal, or investment advice. GILTI rules, the §250 deduction percentage, the high-tax exclusion threshold, and Form 5471 penalty schedules are subject to legislative and regulatory change; all figures should be verified with current IRS guidance and qualified cross-border tax counsel before any reliance. Cross-border tax planning involves complex, jurisdiction-specific analysis. DAG coordinates with qualified tax and legal professionals; it does not provide tax or legal advice directly. Consult a licensed cross-border tax attorney and a CPA experienced in international tax before establishing or modifying any foreign entity structure.

Disclosures

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