FEOC Alphabet Soup
A plain-language look at the terms that decide whether a project clears the new Foreign Entity of Concern rules

What are we talking about?
Between FEOC, PFE, SFE, and FIE, the new Foreign Entity of Concern rules come with an entirely new vocabulary. We break it down below so you can feel clear and confident with your compliance.
In the energy tax landscape, "Foreign Entity of Concern" or "FEOC" broadly refers to the Prohibited Foreign Entity and Material Assistance regulations surrounding transferrable tax credit compliance. The term originated in the Infrastructure Investment and Jobs Act of 2021 and now anchors the § 7701(a)(51) Prohibited Foreign Entity rules enacted by the One Big Beautiful Bill Act of 2025.
Breakdown of Terms: Taxpayer-Level
Prohibited Foreign Entity
A prohibited foreign entity (PFE) is defined in § 7701(a)(51)(A) as a Specified Foreign Entity (SFE) or a Foreign-Influenced Entity (FIE). A PFE is the broadest, most all-encompassing category of classification and requires the highest level of diligence to rule out.
§ 7701(a)(51)(A)
§ 7701(a)(51)(B)
§ 7701(a)(51)(D)
A Foreign-Controlled Entity (FCE) is the fifth subcategory of SFE, which is why it sits on the SFE side below.
Specified Foreign Entities (SFEs) are the core of the PFE compliance regime. They are used in the measure of ownership thresholds for FIEs, evaluated in contractual relations under effective control, and considered in the § 50(a)(4) ten year recapture evaluation.
Composed of five primary subcategories, SFEs are largely the most straightforward category, with a slight catch in item 5:
- A foreign entity of concern described in section 9901(8) of the William M. (Mac) Thornberry National Defense Authorization Act
- A Chinese military company operating in the United States in accordance with section 1260H of the Mac Act
- An entity included on the UFLPA Entity List
- The specified entities in § 2(d)(2)(B) of PL 118: CATL, BYD, Envision, EVE, Gotion, Hithium, and any successors
- A Foreign-Controlled Entity
Foreign-Controlled Entities (FCEs) are a more amorphous category and can function as a catch-all for entities with strong, but potentially undefinable, foreign connections. They are broadly composed of the five following subcategories:
- The government of a covered nation
- An agency or instrumentality of such government
- A person who is a citizen or national of a covered nation, provided that individual is not also a U.S. citizen, national, or lawful permanent resident
- An entity or a qualified business unit incorporated or organized under the laws of, or having its principal place of business in, a covered nation
- An entity, including subsidiary entities, controlled by an entity described in clause (i), (ii), (iii), or (iv)
Similarly to FCEs, Foreign-Influenced Entities (FIEs) are a broad category encompassing a variety of entities with strong ties to covered nations. The primary determination with FIEs is understanding the degree of influence SFEs exercise over the taxpayer through the lenses of ownership, management, debt, and contractual relationships over the tax year.
Generally, an entity is a foreign-influenced entity if, during the tax year, a specified foreign entity:
- Has the right to appoint one of the taxpayer's officers or directors
- Owns at least 25% of the taxpayer on its own
- Owns at least 40% of the taxpayer together with other SFEs, or
- Holds at least 15% of its debt
A taxpayer is also deemed a foreign-influenced entity if, during the taxable year, the taxpayer makes a payment to an SFE pursuant to an agreement which confers effective control over the taxpayer's qualified facility, energy storage, or the production of eligible components.
Effective control occurs where a Specified Foreign Entity holds authority over key aspects of the business by contractual means, instead of the means of ownership or debt as otherwise assessed under the FIE definition. Until Treasury issues further guidance, it covers unrestricted rights over:
- The amount or timing of component production
- The amount or timing of electricity produced or stored
- The use of the components
- The purchase or use of the output
- Access to data, the site, or personnel, or
- The maintenance, repair, or operation of the facility
For licensing or intellectual property agreements, effective control is deemed to occur where an SFE has a general contractual right to:
- Specify or direct where components, subcomponents, or critical minerals are sourced
- Direct facility operations
- Limit how the taxpayer uses the licensed technology
- Collect royalties for more than ten years
- Require services for more than two years, or
- Withhold the data or know-how needed to use the technology on its own
For licensing or intellectual property agreements entered into or modified after July 4, 2025, there is an automatic presumption of conferring effective control.
Breakdown of Terms: Project-Level
Material Assistance
A taxpayer is disallowed from claiming tax credits on projects that received "Material Assistance" from a Prohibited Foreign Entity (PFE). Material Assistance is defined under § 7701(a)(52)(A) as occurring where a project has a material assistance cost ratio which is less than the threshold percentage.
2026 thresholds (must meet or exceed)
| Credit or component | 2026 MACR floor |
|---|---|
| Qualified facilities · §§ 45Y, 48E | 40% |
| Energy storage technology · § 48E | 55% |
| Solar components · § 45X | 50% |
| Wind components · § 45X | 85% |
| Inverters · § 45X | 50% |
| Battery components · § 45X | 60% |
Thresholds rise in later years under the schedules in IRS Notice 2026-15. The rules apply to facilities and energy storage that begin construction after December 31, 2025, and to eligible components sold in tax years beginning after July 4, 2025. Out-year percentages and critical-mineral thresholds are set by forthcoming Treasury tables.
Key Terms
Quick-reference definitions for the underlined terms above. Citations are to the Internal Revenue Code unless noted otherwise.
The People's Republic of China, the Russian Federation, North Korea, and Iran.
An officer, director, or person of equivalent authority. The ability of an SFE to appoint such a person is one of the foreign-influenced-entity triggers.
A Chinese military company operating in the United States, as identified on the list required by section 1260H of the William M. (Mac) Thornberry NDAA for FY2021. A subcategory of specified foreign entity under § 7701(a)(51)(B).
Direct costs, as used to compute the MACR, refers to direct labor and direct materials for qualified facilities and energy storage; direct materials only for eligible components.
The costs of labor that can be identified or associated with particular units or groups of units of specific property produced. For this purpose, labor encompasses full-time and part-time employees, as well as contract employees and independent contractors. Direct labor costs include all elements of compensation other than employee benefit costs described in § 1.263A(e)(3)(ii)(D). Elements of direct labor costs include basic compensation, overtime pay, vacation pay, holiday pay, sick leave pay (other than payments pursuant to a wage continuation plan under section 105(d) as it existed prior to its repeal in 1983), shift differential, payroll taxes, and payments to a supplemental unemployment benefit plan.
The cost of those materials that become an integral part of specific property produced and those materials that are consumed in the ordinary course of production and that can be identified or associated with particular units or groups of units of property produced. For example, a cost described in § 1.162-3, relating to the cost of a material or supply, may be a direct material cost.
A component described in section 45X(c) (solar and wind components, inverters, qualifying battery components, and applicable critical minerals) whose production and sale qualifies for the advanced manufacturing production credit.
Energy storage technology described in section 48E(c) eligible for the clean electricity investment credit; subject to the material assistance rules with its own threshold schedule.
A foreign entity of concern as described in section 9901(8) of the William M. (Mac) Thornberry NDAA for FY2021. A subcategory of specified foreign entity under § 7701(a)(51)(B).
The entities specified in section 2(d)(2)(B) of Public Law 118-31: CATL, BYD, Envision, EVE, Gotion, and Hithium, and any successors.
A qualified business unit within the meaning of section 989: a separate and clearly identified unit of a trade or business that maintains separate books and records. Its location can render an entity foreign-controlled.
A qualified facility for clean electricity production or investment under sections 45Y and 48E; subject to the material assistance rules for facilities beginning construction after December 31, 2025.
The ten-year recapture rule under section 50(a)(4) applicable to prohibited foreign entities, which can recapture previously claimed credits if the relevant entity is or becomes a PFE within the recapture period.
The applicable percentage a project's MACR must meet or exceed to avoid material assistance, prescribed by credit, component type, and year and increasing over time.
The Uyghur Forced Labor Prevention Act list.
Newsletter
No spam. Just the latest market trends, insightful articles, and updates from Reunion.
Newsletter
Get in touch with the industry’s leading tax credit and compliance team
Since 2024, Reunion’s expert team has worked with leading corporations and clean energy companies to unlock the full value of transferable tax credits.
