For a company outside the United States, a U.S. IPO can open access to a deeper pool of investors and new opportunities for growth. But entering the U.S. public markets also means adapting to a new disclosure and reporting environment.
One of the first questions a foreign company may face is: Should we file Form F-1 or Form S-1?
The answer largely depends on whether the company qualifies as a Foreign Private Issuer (FPI). And that distinction affects more than the registration statement. It can influence financial reporting, corporate governance, and ongoing SEC disclosures as well.
F-1 or S-1? Start With the Issuer
Form S-1 is the general Securities Act registration statement used when no other registration form applies.
Form F-1 serves a similar purpose for qualifying foreign private issuers. Both forms require companies to provide investors with detailed information about their business, risks, financial condition, management, ownership, and the securities being offered.
| Form S-1 | Form F-1 | |
| Typical issuer | U.S. domestic issuer | Qualifying foreign private issuer |
| Purpose | Register securities for a public offering | Register securities for a public offering |
| Annual reporting | Form 10-K | Form 20-F |
| Interim/current reporting | Forms 10-Q and 8-K generally apply | Form 6-K framework generally applies |
| Accounting | US GAAP | IFRS as issued by IASB may be used without U.S. GAAP reconciliation, subject to SEC requirements |
So, F-1 is not simply a foreign version of S-1. It sits within the SEC’s broader regulatory framework for foreign private issuers.
First Question: Are You Actually an FPI?
Being incorporated outside the U.S. does not automatically make a company a Foreign Private Issuer.
Generally, a foreign issuer qualifies when 50% or less of its outstanding voting securities are held by U.S. residents. If U.S. residents hold more than 50%, the company must consider additional factors, including the location or residency of its directors and executive officers, where its assets are located, and where its business is principally administered.
This makes FPI status one of the first questions a foreign company should address when considering a U.S. listing.
FPI status is first assessed within 30 days before the initial registration statement is filed and then retested every year on the last business day of the second fiscal quarter. A company that fails the test moves to domestic issuer reporting from the first day of the next fiscal year.
Foreign company does not automatically mean Foreign Private Issuer.
The Real Difference Is the Reporting Framework
The biggest misconception is to view F-1 and S-1 as two versions of the same filing.
The more useful way to look at them is this:
S-1 → domestic issuer reporting framework
F-1 → foreign private issuer reporting framework
That difference continues after the initial offering.
A domestic public company generally operates within a reporting cycle built around 10-K, 10-Q, and 8-K.
An FPI generally operates under a different framework, centred on 20-F for annual reporting and 6-K for certain interim and current information. FPIs are generally not subject to the same quarterly reporting requirements as domestic issuers.
For a foreign company, this can mean a different reporting cadence and different disclosure processes.
The Financial Reporting Flexibility: IFRS
One of the most important differences for an FPI is accounting.
An eligible FPI can use IFRS as issued by the International Accounting Standards Board (IASB) without reconciling its financial statements to U.S. GAAP, provided it meets the applicable SEC requirements.
For companies already reporting under IFRS, this can significantly reduce the need to maintain a separate U.S. GAAP reconciliation solely for the SEC filing.
However, this flexibility does not mean the company’s existing financial reporting is automatically ready for a U.S. IPO.
The company still needs to assess its accounting policies, audited financial statements, disclosures, and reporting processes against SEC requirements.
FPI status can provide accounting flexibility. It does not remove financial reporting responsibility.
FPI Flexibility Can Extend to Governance
The differences do not stop with accounting.
In certain circumstances, qualifying FPIs can follow home-country corporate governance practices instead of specific Nasdaq requirements. Nasdaq permits these accommodations subject to applicable conditions and disclosure requirements.
For example, a foreign company may have governance practices shaped by its home jurisdiction’s laws that differ from those commonly followed by U.S. companies.
FPI status can provide room for those practices in certain areas.
But it does not mean the company is outside the U.S. regulatory framework.
The distinction is important:
SEC requirements govern securities registration and disclosure.
Nasdaq requirements govern exchange listing and continued listing.
A company preparing for a U.S. IPO needs to understand both.
The Rules Don’t End at the Listing
An FPI’s obligations continue after its shares begin trading.
The company must maintain processes capable of supporting its ongoing SEC reporting, financial disclosures, and other public-company obligations.
This is particularly important because FPI requirements can change over time.
One significant 2026 development is the Holding Foreign Insiders Accountable Act (HFIA Act).
Effective March 18, 2026, the Act generally brought directors and officers of FPIs with Section 12-registered equity securities into the Section 16(a) reporting framework. The SEC has subsequently provided exemptions for directors and officers of FPIs from certain jurisdictions, including India, where substantially similar home-country requirements apply.
The takeaway for prospective issuers is simple:
FPI rules are not static. Companies need current, jurisdiction-specific guidance when preparing for a U.S. listing.
From IPO Preparation to Disclosure Readiness
For a foreign issuer, preparing for a U.S. IPO can feel overwhelming.
Financial information may sit across different systems. Multiple teams may own different parts of the disclosure. Legal, finance, audit, and management teams must work from consistent information while responding to changing requirements.
This is where disclosure management becomes more than a compliance task.
IRIS CARBON helps companies bring greater structure and intelligence to the disclosure process through an AI-enabled platform designed to help teams manage financial and reporting information more efficiently.
For an FPI preparing for a U.S. IPO, IRIS CARBON can help create a more connected disclosure workflow supporting consistency, reducing manual effort and helping teams approach complex reporting requirements with greater confidence.
Because the goal is not simply to file an F-1.
It is to build a disclosure process that can support the company as it enters and continues to operate in the U.S. public markets.
