GILTI Tax US Founders: What Changed in 2026 (NCTI)

GILTI Tax US Founders Relied On Is Gone: What Changed in 2026

Last updated: August 2026

GILTI tax US founders knew is gone in its original form. As of January 1, 2026, the One Big Beautiful Bill Act replaced GILTI with Net CFC Tested Income (NCTI), a structural overhaul that eliminates a key exclusion and raises the effective tax rate on foreign company profits for most US founders. If you built an offshore or UAE structure under the old rules, the math you planned around has changed.

Most guides still talk about "GILTI" as if it's the current law. It isn't, not exactly. The name change matters less than what's underneath it: the Qualified Business Asset Investment exclusion that used to shelter a portion of foreign income is gone, and the effective rate on what remains has climbed. For any US citizen or green card holder with 10% or more ownership in a foreign corporation, this is a genuine inflection point worth understanding before year-end planning.

This guide covers what GILTI used to do, exactly what changed under NCTI, who's affected, the one planning lever that still matters most, and where a cross-border tax specialist becomes essential rather than optional.

Key Takeaways

- GILTI was replaced by Net CFC Tested Income (NCTI) effective January 1, 2026, under the One Big Beautiful Bill Act signed July 4, 2025.

- The QBAI exclusion, which sheltered a routine return on tangible foreign assets, is eliminated entirely under NCTI. Nearly all net CFC income is now includible.

- The effective corporate rate on this income category rose from roughly 10.5% to approximately 12.6%.

- The high-tax exception remains the main planning lever: if your foreign corporation pays local tax above roughly 14%, the income can be excluded from NCTI inclusion. UAE's 9% standard corporate rate falls short of that threshold.

- Form 5471 filing is required regardless of NCTI liability, and penalties for missing it start at $10,000 or more per form, per year.

What GILTI Used to Do (Quick Context)

GILTI, Global Intangible Low-Taxed Income, was introduced by the 2017 Tax Cuts and Jobs Act. It required US shareholders owning 10% or more of a Controlled Foreign Corporation to include a share of that corporation's "low-taxed" foreign income in their US taxable income every year, whether or not the company actually distributed any profit to them.

The Qualified Business Asset Investment exclusion, QBAI, was the release valve. It sheltered a deemed "routine return" on tangible foreign assets, buildings, equipment, physical infrastructure, from GILTI inclusion. A founder with meaningful tangible assets abroad could shield a real chunk of income this way.

Want the fuller context on US citizen tax obligations abroad? Read our guide to tax obligations when moving abroad →

That release valve is gone now, and that's the part most founders researching "GILTI" in 2026 don't yet realize.

What Changed in 2026: GILTI to NCTI (OBBBA)

The One Big Beautiful Bill Act, signed July 4, 2025 and effective January 1, 2026, replaced GILTI with Net CFC Tested Income. This isn't a rename. It's a structural overhaul with real consequences for anyone holding a foreign corporate structure.

Two changes matter most:

The QBAI exclusion is eliminated. Nearly all net CFC income is now includible in a US shareholder's taxable income, regardless of how much tangible asset base sits behind it. The routine-return shelter that used to protect a slice of income no longer exists.

The effective corporate rate rose. The effective rate on this income category climbed from roughly 10.5% to approximately 12.6% for corporate taxpayers.

Put together: a founder's 2026 US tax inclusion on their foreign company's profit will almost certainly be larger than their 2025 GILTI inclusion, even if the underlying income and foreign tax rates haven't changed at all. This is the correction most people researching this topic actually need. GILTI isn't just still around under a new name; the base it taxes got wider and the rate on it went up.

Diego, a founder running a UAE-based SaaS company, structured his company in 2022 specifically to take advantage of the QBAI exclusion on his office lease and server hardware. His accountant ran the 2026 numbers in February and found his US inclusion had jumped by nearly 40%, not because his business grew that much, but because the shelter he'd planned around no longer existed. He hadn't read past the word "GILTI" in the articles he'd found; none of them mentioned NCTI by name. He's now restructuring his ownership percentage with a cross-border specialist to see if it changes his exposure.

Who NCTI Applies To: GILTI Tax US Founders Need to Track

NCTI applies to US citizens, green card holders, and other US persons who own 10% or more of a foreign corporation classified as a Controlled Foreign Corporation, meaning US persons collectively own more than 50% of it.

This does not typically apply to foreign LLCs treated as disregarded entities or partnerships for US tax purposes. That distinction trips up a lot of founders: the entity type you chose when forming your company determines which reporting regime applies, and "foreign company" alone doesn't tell you which bucket you're in.

In practice, NCTI applies if all of the following are true:

• You're a US citizen, green card holder, or otherwise a US person for tax purposes.
• You own 10% or more of a foreign corporation, directly or through attribution rules.
• US persons collectively own more than 50% of that foreign corporation, making it a Controlled Foreign Corporation.
• The entity is classified as a corporation for US tax purposes, not a disregarded entity or partnership.

Ready to compare a UAE structure against alternatives? Explore Dubai free zone company formation →

This rule is directly relevant if you're using a UAE mainland or free zone company, or any foreign corporate structure, rather than a US-based entity like a Delaware LLC. The structure type you choose at formation determines whether NCTI even enters the picture.

The High-Tax Exception: The Main Planning Lever

If your foreign corporation pays local corporate tax at a rate of roughly 14% or higher, the updated 2026 threshold under NCTI, tied to a percentage of the US corporate rate, that income can be excluded from NCTI inclusion entirely. This is the single most important planning consideration for founders comparing jurisdictions.

Here's where it gets concrete. UAE's standard corporate tax rate is 9%. That sits below the roughly 14% high-tax exception threshold, meaning UAE company profits are generally still subject to US inclusion under NCTI unless the structure is built carefully around this specific gap.

This is a point most competitor content glosses over. Founders hear "UAE is zero tax" or "UAE has a 9% rate," and assume that settles the US tax question. It doesn't. The exception threshold sits well above UAE's standard rate, so the default outcome for a US person with a UAE company is continued US inclusion on the company's profits, not exemption.

Want to weigh a US-based structure against a foreign one before you decide? Compare Delaware LLC formation as an alternative →

Compliance Requirements and Penalties for Getting It Wrong

Two forms matter here, and one of them applies regardless of whether you owe any NCTI tax at all.

Form 5471 is the annual information return for US persons with interests in certain foreign corporations. Full requirements are laid out in the IRS's official Form 5471 instructions. This filing requirement exists independent of your actual tax liability; you file it because you hold the ownership stake, not because you owe money.

Form 8992 is the calculation form for the NCTI (formerly GILTI) inclusion itself. The IRS's guidance on Controlled Foreign Corporations covers how CFC status is determined and how these two forms interact.

The penalties for missing Form 5471 are severe and start at $10,000 or more per form, per year, escalating further for continued non-compliance. This compliance burden alone is a major factor in whether a foreign company structure makes practical sense for a US founder, separate from the underlying tax rate question entirely.

Neither form is optional once you cross the ownership threshold. Filing late or not at all doesn't just risk a fine either; the IRS can also extend the statute of limitations on your entire tax return until the missing forms are filed, which means an unrelated audit years later can reopen far more than the CFC issue itself.

Sana, a consultant who'd formed a foreign holding company in 2021 and genuinely forgot she needed to file Form 5471 annually, discovered the gap during a broader financial review in 2026. Three years of missed filings meant potential penalty exposure well into six figures before any reasonable-cause relief was considered. She's now working with a specialist to file delinquent returns under an IRS voluntary disclosure approach, a process that's taken months and cost far more in professional fees than staying current would have.

Curious about related compliance risk when working across borders? See our guide to permanent establishment risk for remote workers →

What GILTI Tax US Founders Face When Structuring a Foreign Company in 2026

If you're weighing a foreign corporate structure, UAE, offshore, or otherwise, against a US-based structure like a Delaware LLC, this is now a more consequential decision than it was under the old GILTI/QBAI framework.

A foreign corporation subject to NCTI means annual US tax inclusion on the company's profits, current filing obligations under Form 5471 and Form 8992, and exposure to a compliance regime with steep penalties for missteps. A Delaware LLC, structured and taxed differently, sidesteps the CFC framework entirely for most standard setups, though it carries its own considerations around US-source income and state-level obligations.

Neither structure is automatically right. The comparison depends on where you're operating, what your local tax rate looks like against the roughly 14% high-tax exception threshold, and how much complexity you're prepared to manage on an ongoing basis.

A few questions worth answering before you commit to either path:

• What's your foreign jurisdiction's actual corporate tax rate? If it clears roughly 14%, the high-tax exception may shelter the income; if it doesn't (like UAE's 9%), plan around continued US inclusion.
• How much annual compliance overhead can you realistically manage? Form 5471 and Form 8992 filings, plus the underlying NCTI calculation, typically require a specialist every year, not just at formation.
• Does your business need a physical presence in that jurisdiction, or is the structure purely for tax positioning? If it's the latter, a Delaware LLC may achieve similar goals with a simpler compliance profile.
• What did your existing structure assume about QBAI that no longer holds? If you formed before 2026, this is the single most important number to re-run.

When to Bring In a Cross-Border Tax Specialist

This is a "talk to a specialist" moment, not a DIY calculation. NCTI's mechanics, the high-tax exception's practical application to your specific jurisdiction, and the interaction with Form 5471 and Form 8992 filing requirements involve genuine complexity that a general accountant may not have current expertise in, particularly this soon after the OBBBA transition.

If you already have a foreign corporate structure formed under the old GILTI framework, reassessing it with a cross-border specialist before your next filing deadline is worth the cost. If you're still deciding between a foreign company and a US-based structure, get the NCTI math run against your actual numbers before you commit to either path.

Note: This guide is for research and educational purposes. It does not constitute legal or tax advice. NCTI applicability depends on your specific ownership structure, jurisdiction, and income type, and US tax rules change. Always confirm current requirements with a licensed cross-border tax professional before making structuring decisions.

Watch: For a walkthrough of how the GILTI-to-NCTI transition affects a typical foreign company structure, see this video overview.

(Editorial note: replace VIDEO_ID_PLACEHOLDER with Atlasway's own walkthrough video or a verified, currently-live third-party source before this article goes live.)

If you're weighing a foreign company structure against a US-based alternative and want a clearer sense of where NCTI fits into that decision, get in touch with Atlasway →. We're a research platform, not a tax firm, so there's no pressure either way, just a clearer starting point before you talk to a specialist.

Conclusion

GILTI tax for US founders changed fundamentally in 2026. Net CFC Tested Income replaced it, eliminated the QBAI exclusion that used to shelter tangible-asset income, and raised the effective rate on what remains includible. If you're a US person with 10% or more ownership in a foreign corporation, this almost certainly means a larger US tax inclusion in 2026 than in prior years, even without any change to your underlying business.

The high-tax exception, the Form 5471 filing requirement regardless of liability, and the UAE's 9% rate falling short of the exception threshold are the three places founders most often either get caught by surprise or make an informed decision because they understood the mechanics ahead of time. Getting current on the NCTI rules before your next filing, not after an IRS notice arrives, is what separates the Sanas from the founders who reassessed early.

Atlasway exists for exactly this stage of the decision: understanding how NCTI affects a foreign company structure before you form one, or before you keep maintaining one built under the old rules. When you're ready for a conversation specific to your ownership structure and jurisdiction, that's where a cross-border tax specialist takes over.

The information in this article is for research and educational purposes only. It does not constitute legal or tax advice. Program rules, investment thresholds, and government fees change frequently — always verify current requirements with a licensed advisor before taking action.