FEOC Restrictions: A Capital Structure Rule Wearing a Supply Chain Costume
For years, renewable-energy teams heard FEOC and thought about supply chains.
Where was the cell made? Who refined the mineral? Is the battery supplier Chinese? Can the module qualify under a sourcing rule?
That instinct was understandable.
Then Congress changed the problem.
The 2025 legislation added a new tax-code framework built around prohibited foreign entities. The supply-chain side remained important, but the statute also began asking questions that have nothing to do with the country of origin of a component:
- Who owns the taxpayer?
- Who can appoint its senior officers?
- Who received its debt issuance?
- Does a technology licensor control how the project operates?
- Does an agreement restrict access to operational data?
- Is a specified foreign entity effectively controlling the facility through a contract even though it owns no equity at all?
A solar project can therefore have a perfectly acceptable bill of materials and still lose §45Y or §48E eligibility because the taxpayer itself fails the entity test.
That is the part of the rule that changes project finance.
The 2025 law created the statutory structure. Notice 2026-15 then supplied interim guidance on how Treasury and the IRS expect to apply important pieces of it while fuller regulations are still being developed.
By 2026, “FEOC review” has become shorthand for at least two separate diligence exercises:
Who is the taxpayer and who controls it?
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What went into the facility?
The first is this article.
The second — material assistance and the MACR calculation — is the subject of the next post.
ℹ️ Note: The market still uses “FEOC” loosely. The 2025 tax statute uses more specific terms: prohibited foreign entity (PFE), specified foreign entity (SFE) and foreign-influenced entity (FIE). Those distinctions matter.
Meet Cedar Storage LLC: A Clean Project That Can Still Fail
Cedar Storage LLC is an illustrative privately held U.S. project taxpayer. Assume its supply chain passes the separate MACR test. We are looking only at entity status.
At the beginning:
Largest SFE equity holder 24%
Aggregate SFE ownership 24%
Total relevant entity debt $100m
Debt issued to SFEs $14m = 14%
SFE right to appoint covered officer None
Prior-year payment giving SFE effective control? No
Cedar passes every entity-status trigger in this baseline.
Now keep the project, equipment and tax credit exactly the same. Change one legal or financing fact at a time:
| Change | Result |
|---|---|
| SFE investor buys another 1% → reaches 25% | FIE trigger |
| A second SFE owns 20%, taking aggregate SFE ownership to 44% | FIE trigger |
| SFE debt rises from $14m to $15m of $100m total debt | FIE trigger |
| SFE receives direct authority to appoint Cedar's CFO | FIE trigger |
| Cedar pays an SFE under an arrangement giving it effective control | Can create FIE status under the previous-taxable-year branch |
That is the point of the article: Cedar can have a completely acceptable battery supply chain and still lose eligibility because of capital structure, governance or contracts.
The Vocabulary Changed Before the Market Did
The phrase foreign entity of concern already existed in federal law before the 2025 tax changes.
But the clean-energy tax restrictions now use a broader architecture in §7701(a)(51).
The basic hierarchy is:
Prohibited Foreign Entity (PFE)
├── Specified Foreign Entity (SFE)
└── Foreign-Influenced Entity (FIE)
A specified foreign entity is an entity that falls into one of several statutory categories, including designated/listed entities and foreign-controlled entities connected to covered nations.
A foreign-influenced entity can be an otherwise ordinary company that crosses one of the ownership, officer, debt or effective-control tests.
That second category is what makes the rule unusual.
You do not need to be a Chinese company to become foreign-influenced.
A U.S. project company can be caught because of how it is financed or because of what rights it gave a contractual counterparty.
There Are Two Different PFE Problems
The clean-energy rules now contain two different screens that should never be collapsed into one Excel flag.
Entity status
For credits such as §45Y and §48E, the question is whether the taxpayer itself is disqualified because it is an SFE or FIE.
For those credits, the consequence is binary: if the applicable taxpayer-level restriction is triggered, no credit is determined for that taxable year.
Material assistance
Separately, a §45Y qualified facility or §48E qualified facility / energy storage technology beginning construction after December 31, 2025 can fail because its construction includes material assistance from a PFE.
That is a sourcing-and-cost test.
The distinction is fundamental:
| Entity-status test | Material-assistance test | |
|---|---|---|
| Core question | Who is the taxpayer / who influences it? | What was incorporated into the facility? |
| Main inputs | Ownership, debt, officer rights, contracts | Components, suppliers, direct costs |
| Core Code provision | §7701(a)(51) | §7701(a)(52) |
| Typical finance owner | Legal / tax / treasury | Procurement / tax / engineering |
| Can one pass while the other fails? | Yes | Yes |
A clean supply chain does not cure a foreign-influenced taxpayer.
A clean cap table does not cure a failing MACR.
The Four Capital-Structure Tests
For a privately held entity, §7701(a)(51)(D)(i)(I) creates four independent ways to become a foreign-influenced entity during the taxable year.
An entity can be caught if:
- an SFE has direct authority to appoint a covered officer;
- a single SFE owns at least 25% of the entity;
- one or more SFEs own at least 40% in aggregate; or
- at least 15% of the debt of the entity has been issued, in aggregate, to one or more SFEs.
Those are separate tests.
Cedar shows how unforgiving the thresholds are. At 24% SFE ownership it remains below the single-owner threshold; at 25% it crosses it. Its $14 million of SFE-issued debt is 14% of $100 million and remains below the debt threshold; at $15 million, assuming the denominator remains $100 million, it reaches 15% and triggers the test.
Passing 24.9% ownership does not help if the aggregate ownership test is 42%.
Passing both equity tests does not help if the debt test is 16%.
And none of them addresses effective control, which is a fifth route discussed later.
The debt test is about the taxpayer's debt, not simply the project finance facility
This point matters in modeling.
The statute asks whether at least 15% of the debt of the entity has been issued to one or more SFEs.
So an analyst should not build a test using only the SFE share of the construction loan unless the construction loan is in fact the relevant debt universe for that taxpayer.
The denominator is an entity-level legal/tax question.
Use Cedar's financing instead:
Total relevant entity debt $100m
Closing:
Debt issued to SFEs $14m
Debt test 14%
Result PASS
After a new issuance / refinancing:
Debt issued to SFEs $15m
Debt test 15%
Result FIE TRIGGER
One additional $1 million of debt to an SFE can therefore change Cedar's status if the denominator remains $100 million.
The arithmetic is easy. Defining the debt population and identifying the creditor is the difficult part.
Public Companies Do Not Simply Use the Same Four Tests
The statute contains separate rules for regularly traded entities and certain entities at least 80% owned by a regularly traded parent.
That is important because the headline 25% / 40% / 15% framework is often repeated without the public-company qualification.
For qualifying publicly traded entities, the ownership tests focus on SFEs that are required to report beneficial ownership under Rule 13d-3 or an equivalent rule.
The debt rule is also different: the entity can be treated as foreign-influenced where it has issued, as part of an original issuance, more than 15% of its publicly traded debt to one or more SFEs.
That is not the same as saying:
“If 15% of publicly traded bonds later trade into the wrong hands, the issuer automatically becomes an FIE.”
The statute is written around the original issuance.
That distinction matters for lender and bond-document drafting. Do not convert the private-company rule into a generic secondary-trading covenant without first identifying which statutory regime actually applies.
Officer Appointment Rights Can Matter Even With Little or No Equity
Ownership percentages are easy to put in a cap-table schedule.
Governance rights are easier to miss.
An entity can be foreign-influenced if an SFE has direct authority to appoint a covered officer.
The statutory definition of covered officer is broad. It includes:
- a member of the board or equivalent governing body;
- executive-level officers such as president, CEO, COO, CFO, general counsel or senior vice president; and
- an individual with similar powers or responsibilities.
That means the diligence exercise should not stop at voting percentage.
A shareholder with a minority economic interest may still have a governance right that independently triggers the test.
The relevant documents may therefore include:
LLC agreement
shareholders agreement
investor-rights agreement
board appointment rights
side letters
management agreements
A financing memo that says “foreign ownership below 25% — pass” is incomplete if nobody reviewed appointment rights.
The Contract Test Is Where FEOC Stops Looking Like Corporate Law
The most distinctive part of the FIE definition is the effective-control route.
An entity can become foreign-influenced if, during the previous taxable year, it made a payment to an SFE under a contract, agreement or other arrangement that entitles that SFE — or a related entity — to exercise effective control over the relevant qualified facility, energy storage technology or eligible-component production.
Notice the timing.
This is not simply:
Current contract exists → current-year FIE
The statute expressly uses payments during the previous taxable year for this branch of the definition.
Cedar makes the timing tangible. Suppose Cedar remains clean on equity, debt and officer rights throughout Year 1, but in Year 1 it pays an SFE technology licensor under an agreement that gives the licensor an unrestricted right to determine battery dispatch. If that right constitutes effective control under the statute, the Year-1 payment is relevant to Cedar's Year-2 FIE analysis.
Year 1: payment under effective-control arrangement
↓
Year 2: previous-taxable-year payment branch tested
↓
Potential FIE status
The previous-year payment rule makes the model year-sensitive.
What Effective Control Means Before You Even Reach IP Licensing
The statute and Notice 2026-15 reach rights that can look commercially ordinary in a technology or service contract.
Effective control includes an unrestricted contractual right of a counterparty to do things such as:
- determine the amount or timing of electricity production;
- determine the amount or timing of storage activity;
- determine who may purchase or use project output;
- restrict access to critical operational data;
- restrict access to the project site to the counterparty's personnel or agents; or
- exclusively maintain, repair or operate equipment necessary to electricity production.
A long-term O&M agreement is therefore not automatically a problem.
But an exclusive operating or maintenance right held by an SFE can be.
A software agreement is not automatically a problem.
But a right to control critical operating data or determine dispatch can be.
An offtake agreement is not automatically a problem.
But the contract review must distinguish ordinary commercial purchase rights from the statutory rights that amount to effective control.
This is why the FEOC questionnaire has to reach the commercial contracts folder.
The Licensing Rules Are Even More Aggressive
Technology licensing is where the statute becomes unusually specific.
For licensing agreements and related arrangements concerning a qualified facility, energy storage technology or eligible-component production, the law identifies several retained rights or features associated with effective control.
Examples include a counterparty right to:
- specify sources of components, subcomponents or critical minerals;
- direct operation of the facility or production unit;
- limit the taxpayer's use of the licensed IP;
- receive royalties beyond the tenth year of the agreement;
- require the taxpayer to enter into services lasting more than two years; or
- withhold technical data or know-how necessary for the taxpayer to operate or produce without further involvement from the counterparty.
The statutory list also includes whether the arrangement was entered into or modified on or after July 4, 2025.
Notice 2026-15 states that these licensing criteria are determined independently and that satisfying any one of the enumerated provisions can produce effective control for the covered arrangement.
That is a much broader rule than a conventional “who controls the board?” analysis.
There is an exception for a bona fide purchase or sale of intellectual property, but a transaction where ownership reverts to the counterparty after a period of time is not treated as a bona fide sale for this purpose.
For a storage project using proprietary EMS/BMS technology or a manufacturer licensing process IP, this section deserves its own contract-review checklist.
The Old Ten-Year Recapture Tail Shorthand Was Wrong
There is an easy mistake to make when reading the licensing provisions.
One effective-control criterion refers to royalties continuing beyond the tenth year of a licensing agreement.
That is not the same thing as a general statutory rule saying any disqualifying PFE payment made during the next ten years recaptures the entire credit.
The entity-status provisions for §45Y and §48E deny the credit for the taxable year when the applicable taxpayer-status restriction applies.
The material-assistance rules operate through facility eligibility.
Other Code provisions can have their own recapture mechanics.
But the PFE rules discussed here should not be taught as a generic ten-year full-credit repayment covenant.
The “ten years” in this context is principally a feature of one licensing test.
That correction changes how the exposure should be modeled.
The Taxpayer Is Tested by Taxable Year
Section 7701(a)(51) generally determines whether an entity is an SFE or FIE as of the last day of the taxable year, subject to a special rule for the initial taxable year for certain specified-foreign-entity categories.
That means PFE status is not necessarily a one-time closing conclusion.
For a §45Y project earning a credit over multiple years, the taxpayer-level test needs to be capable of being revisited each taxable year.
For a §48E project, the interaction is different because the credit is investment-based rather than a 10-year production stream, but the legal analysis still turns on the statutory taxable-year rules.
The operational lesson is:
Closing diligence ≠ permanent status
Corporate changes, debt issuance, governance amendments and new contracts can matter after financial close.
Beginning of Construction Has Yet Another Definition Here
By 2026, “BOC” is no longer one universal tax switch.
Section 7701(a)(51)(J) says beginning of construction for the PFE rules is determined using rules similar to the historic beginning-of-construction guidance as in effect on January 1, 2025.
Notice 2026-15 expressly says that Notice 2025-42 — the later guidance used for the accelerated wind/solar termination provisions — is not the BOC rule for the PFE restrictions.
So the model should not use one hard-coded date field for:
Wind_Solar_Termination_BOC
PFE_BOC
Domestic_Content_BOC
Energy_Community_Lock_In
Continuity
The factual date may sometimes be the same.
The legal test behind it may not be.
Which Clean-Energy Credits Are Actually Affected?
The 2025 legislation added PFE restrictions across several credits, but the scope and effective dates are not identical.
For project-finance work on new renewables, the two central provisions are §45Y and §48E.
Both now contain:
- taxpayer-level restrictions for specified foreign entities and foreign-influenced entities;
- a separate effective-control rule; and
- material-assistance restrictions for facilities / storage beginning construction after December 31, 2025.
Other credits — including §45X, §45Q, §45U and §45Z — have their own PFE language and timing.
Do not maintain a single model assumption called “FEOC effective date.”
Maintain the Code section.
That is the only reliable way to know which rule applies.
Credit Transfers: The Buyer Restriction Is Narrower Than No PFE Buyer
The transferability rule is another place where shorthand can overstate the statute.
Section 6418 now prohibits certain eligible credits from being transferred to a specified foreign entity.
It does not say, as a general rule, that every transferee that meets the broader definition of prohibited foreign entity or foreign-influenced entity is automatically prohibited under that transfer restriction.
That distinction matters.
A credit-transfer transaction still requires substantial PFE diligence because the seller's underlying credit must itself be valid, and the buyer needs confidence that the seller's taxpayer and facility passed the relevant eligibility tests.
But the specific transferee prohibition in §6418 is drafted around the SFE definition.
So buyer representations should track the actual statutory requirement rather than casually replacing “specified foreign entity” with “PFE.”
Tax Equity: Screen the Structure, Not a Headline About Foreign LPs
The same discipline matters in tax equity.
A statement such as:
“Any foreign limited partner can make the partnership FEOC.”
is too crude.
The question is which entity is the relevant taxpayer, what ownership rules apply, whether an owner is actually an SFE, whether the 25% or 40% thresholds are met, whether officer-appointment rights exist, whether the debt test is triggered, and whether any effective-control arrangement exists.
The statute also contains special rules for publicly traded entities.
That means tax equity diligence needs a reproducible ownership-and-control analysis, not a nationality screen on investor names.
The more complex the upstream ownership structure, the more important it is to preserve the actual legal reasoning in the file.
How I Would Build the Entity Screen
Start with Cedar as a dated taxpayer-status schedule rather than one FEOC checkbox.
1. Taxpayer status
Baseline:
Largest SFE ownership 24%
Aggregate SFE ownership 24%
SFE debt $14m
Relevant entity debt $100m
SFE debt ratio 14%
SFE covered-officer appointment right FALSE
Effective-control payment branch FALSE
Single-owner test 24% >= 25% FALSE
Aggregate test 24% >= 40% FALSE
Debt test 14% >= 15% FALSE
Capital-structure FIE status FALSE
Then create explicit scenario switches:
Scenario A: Largest SFE ownership = 25% → FAIL
Scenario B: Aggregate SFE ownership = 44% → FAIL
Scenario C: SFE debt = $15m / $100m = 15% → FAIL
Scenario D: SFE appoints Cedar CFO → FAIL
Scenario E: Prior-year effective-control payment → test Year-2 FIE status
This is more useful than FEOC = YES/NO because it identifies which transaction term has to be fixed.
For a public company, do not copy Cedar's formulas unchanged; use the separate publicly traded rules.
2. Effective-control schedule
For Cedar's technology agreement:
Counterparty SFE Licensor A
Agreement type EMS / dispatch licence
Payment in prior taxable year YES
Dispatch-control right YES
Critical-data restriction review
Exclusive O&M right review
Effective-control flag legal/tax conclusion
Affected taxable year Year 2
3. Facility sourcing
Keep Cedar's separate MACR result outside the entity-status schedule:
Entity_Status_Pass TRUE / FALSE
Effective_Control_Pass TRUE / FALSE
MACR_Pass TRUE / FALSE
Credit_Eligibility = AND(all applicable tests)
Cedar can therefore pass MACR and still fail entity status, or pass entity status and fail MACR. The model should tell you which workstream owns the problem.
What This Changes in Financing Documents
The new regime turns several items that used to be generic corporate covenants into tax-credit covenants.
Equity and governance
The project may need controls around:
- transfers of ownership interests;
- admission of new investors;
- board / officer appointment rights;
- information needed to test ownership thresholds; and
- representations regarding SFE status.
Debt
The debt test means treasury and financing teams need visibility into who receives an issuance and which entity's debt denominator matters.
For a private project company, the issue can arise even if the creditor has no equity and no governance rights.
For a publicly traded borrower, apply the separate original-issuance rule.
Commercial contracts
New or amended agreements with technology, software, service and O&M counterparties may need:
- SFE representations;
- covenants around control rights;
- limitations on exclusive operation rights;
- data-access protections;
- licensing terms reviewed against the statutory criteria; and
- notification obligations before amendments.
The tax team cannot review only the cap table.
The operating contracts can create the problem.
What Lenders, Tax Credit Buyers and Tax Equity Investors Should Ask
A useful PFE diligence request starts by identifying the legal branch.
- Which credit is being claimed and which PFE restriction applies to it?
- Who is the relevant taxpayer?
- Is the taxpayer an SFE?
- If privately held, has the 25% single-owner test been run?
- Has the 40% aggregate SFE ownership test been run?
- What debt population is used for the 15% test, and why?
- Has any SFE been given direct authority to appoint a covered officer?
- Is the taxpayer subject to the special publicly traded rules instead?
- Were payments made in the previous taxable year under any arrangement with an SFE?
- Do any agreements give rights over production, dispatch, output purchasers, data, site access or exclusive O&M?
- Do licensing arrangements hit any of the specific effective-control criteria?
- Is a bona fide IP-purchase exception being relied on?
- Which beginning-of-construction rule is being used for PFE purposes?
- Has the separate material-assistance / MACR test been completed?
- For a transfer under §6418, is the transferee an SFE?
A good diligence file answers those questions with documents, not conclusions.
The Rule Is Really About Dependency
The supply-chain interpretation of FEOC is only half wrong.
Congress clearly wanted to reduce dependence on prohibited foreign entities in clean-energy supply chains.
But the entity-status rules show that “dependency” is broader than components.
A project can depend on a foreign counterparty through:
- ownership;
- debt;
- governance;
- operating authority;
- software;
- data;
- licensing;
- mandatory services; or
- intellectual property it cannot use independently.
That is why the cleanest way to think about the new framework is not:
“Is anything Chinese?”
It is:
“Can a specified foreign entity own, finance, appoint, direct or technologically control the taxpayer or the facility in a way the Code treats as disqualifying?”
Once you ask the question that way, FEOC stops looking like a procurement checklist.
It becomes a capital-structure and contract diligence exercise with a separate supply-chain test sitting beside it.
the next post takes that second half: material assistance, the MACR numerator and denominator, supplier certifications and the safe-harbor mechanics.
Primary sources: IRS — PFE Restrictions · IRS Notice 2026-15 · 26 U.S.C. §7701 · 26 U.S.C. §45Y · 26 U.S.C. §48E · 26 U.S.C. §6418