For legal-entity identification, the joint standards adopt the LEI under ISO 17442 - a single, common way for regulators to identify organizations across financial datasets.
That does not mean every U.S. company suddenly needs one. The joint rule establishes the standards; individual agencies still determine how those standards apply to their own information collections and reporting rules.
This guide covers what the FDTA does, exactly which standards the rule adopted, which agencies are covered, and what organizations should do now.
Key Takeaway
The Financial Data Transparency Act marks a shift toward standardized, machine-readable regulatory data in the United States. The 2026 joint rule adopted seven standards covering entities, instruments, dates, places and currencies - and set the Legal Entity Identifier as the single standard for identifying legal entities across all nine covered agencies.
The distinction to hold onto: the joint rule establishes the standards, and individual regulators decide how those standards enter their own reporting requirements. October 1, 2026 is when the rule takes effect, not when every filer's obligations change.
If your organization reports to one of the nine covered agencies, the sensible steps are to check whether you already hold an LEI, confirm the record is accurate, and watch your own regulator's implementation. You can check an existing LEI record in seconds, or register an LEI in the United States if you determine you need one.
Does the Financial Data Transparency Act Require an LEI?
Not universally - and this is the distinction that matters most.
The 2026 joint data standards adopt the ISO 17442 Legal Entity Identifier as the standard for identifying legal entities in covered financial regulatory data. That is significant: it gives regulators one consistent way to recognise the same organization across different datasets and reporting systems.
But the joint rule does not create an immediate, universal LEI requirement for every U.S. business. Whether your organization needs one depends on how your regulator incorporates the joint standards into its own reporting requirements - and many U.S. businesses file nothing with any of the nine covered agencies at all.
The short version: the joint rule sets the standard, and individual agencies decide where it applies.
What Is the Financial Data Transparency Act?
The Financial Data Transparency Act of 2022 was signed into law on December 23, 2022, as part of the National Defense Authorization Act for Fiscal Year 2023. It amended the Financial Stability Act of 2010 among other statutes.
Its objective is to improve the accessibility, consistency, interoperability and machine-readability of financial regulatory information collected by U.S. agencies.
Historically, that information arrived through different filing systems, formats, naming conventions and data structures. Comparing records across agencies took real effort, and determining whether two records referred to the same organization often required manual reconciliation.
The Problem in One Example
Consider a single company appearing across several regulatory databases:
ABC Holdings LLC
ABC Holdings, L.L.C.
ABC Holdings
ABC Holdings LLC Delaware
A person recognises these as one company. A computer does not. At scale, that mismatch is expensive - and it is why standardized entity identification sits at the heart of the FDTA. Instead of matching on names, regulators can match on a persistent identifier that does not vary with punctuation or formatting.
The 2026 Joint Data Standards
In 2026, nine U.S. federal financial regulators finalized joint data standards under the FDTA. The final rule takes effect on October 1, 2026.
"Joint" means those agencies developed and adopted the standards together. "Data standards" means the rule defines how regulatory data should be structured, identified, transmitted and made machine-readable.
The Full List of Standards the Rule Adopted
Most coverage mentions only the Legal Entity Identifier. The rule actually adopts seven standards, and the whole list tells you more about the direction of travel than the LEI alone.
| Purpose | Standard adopted |
| Legal entities | ISO 17442 - Legal Entity Identifier (LEI) |
| Swaps and security-based swaps | ISO 4914 - Unique Product Identifier (UPI) |
| Financial instrument classification | ISO 10962 - Classification of Financial Instruments (CFI) |
| Dates and times | ISO 8601 |
| U.S. states and possessions | USPS abbreviations (Publication 28, Appendix B) |
| Countries and subdivisions | GENC - the U.S. Government profile of ISO 3166 |
| Currencies | ISO 4217 alphabetic codes |
The LEI is the entity identifier within that set - the standard that answers "which organization is this?" while the others handle instruments, dates, places and currencies.
One name is missing, and its absence is notable. The Financial Instrument Global Identifier (FIGI) was proposed as a standard and was not adopted in the final rule.
For data transmission formats the rule takes a different approach. Rather than naming a format, it sets properties that formats must meet, to the extent practicable: render data fully searchable and machine-readable, support quality through schemas with metadata documented in machine-readable taxonomy, ensure data elements are consistently identified in associated machine-readable metadata, and be nonproprietary or available under an open license.
So on identifiers the agencies named specific standards. On format they described what good looks like and left the choice open.
Which Agencies Are Covered?
Nine federal financial regulators issued the joint rule together:
- Securities and Exchange Commission (SEC)
- Office of the Comptroller of the Currency (OCC)
- Board of Governors of the Federal Reserve System
- Federal Deposit Insurance Corporation (FDIC)
- National Credit Union Administration (NCUA)
- Consumer Financial Protection Bureau (CFPB)
- Federal Housing Finance Agency (FHFA)
- Commodity Futures Trading Commission (CFTC)
- U.S. Department of the Treasury
These agencies oversee different parts of the financial system, so the practical impact of the FDTA depends heavily on which regulator oversees your organization.
Where the Legal Entity Identifier Fits
A Legal Entity Identifier is a 20-character alphanumeric code that identifies a legally distinct organization, linked to public reference data about that entity. If the identifier itself is new to you, our guide to what an LEI number is covers the foundation.
Within the FDTA framework, the LEI provides a common entity-identification layer across regulatory datasets. When the same organization appears in filings submitted to different agencies, its LEI establishes that those records relate to one legal entity - without relying on name matching.
That supports consistent identification across systems, more reliable data matching, automated processing of regulatory data, and cross-agency comparison that does not break on a missing comma.
Why ISO 17442
ISO 17442 is the international standard underlying the LEI. Adopting it aligns U.S. regulatory data with an entity-identification system already used in financial markets worldwide, rather than creating a U.S.-only identifier.
It also satisfies a statutory requirement. The FDTA calls for a common nonproprietary legal entity identifier available under an open license, and ISO 17442 meets that test.
On the instrument side, the agencies proposed the Financial Instrument Global Identifier (FIGI) in 2024 but did not adopt it, citing significant disagreement among commenters on its feasibility and cost.
For additional background, see GLEIF's analysis of the FDTA final joint rule.
Final Rule vs. Agency Implementation
The joint rule establishes common data standards and names the LEI for legal-entity identification. What it does not do is impose the same filing requirement on every organization in the country.
Each implementing agency must adopt the applicable standards in its own rulemaking not later than two years after the joint rule is promulgated. The final rule was published on 25 June 2026, placing the outer limit at 25 June 2028. Until an agency acts, the standards do not change what that agency requires.
That means the following differ from one regulator to another:
which entities are covered
which reports and filing systems are affected
implementation dates and transition periods
technical requirements
any tailoring or accommodations
October 1, 2026 is the effective date of the joint rule. It is not a universal LEI compliance deadline, and treating it as one will lead to the wrong conclusions.
For primary sources, review the FDTA Joint Data Standards Final Rule and the SEC's Financial Data Transparency Act rulemaking page.
FDTA Timeline
- December 23, 2022 - the Financial Data Transparency Act becomes law
- 2026 - federal financial regulators finalize the joint data standards
- October 1, 2026 - the joint rule takes effect
- By 25 June 2028 - covered agencies must adopt applicable standards through their own rulemaking (two years from the final rule's publication on 25 June 2026)
What U.S. Organizations Should Do Now
For most organizations the right response is preparation, not an assumption that a new filing obligation already applies.
1. Find out whether you already have an LEI. Many organizations do, obtained years ago for derivatives activity, securities trading, or a banking requirement - and then left to lapse. Check for an existing LEI by legal name before applying for anything.
2. Review the record if one exists. Confirm the legal name, registered address, entity status and registration status are current. An accurate record is what makes a standardized identifier useful; a stale one undermines it.
3. Follow your own regulator. FDTA implementation arrives through agency-specific rulemaking. The announcement that matters to you will come from the agency that oversees your filings, not from the joint rule.
4. Map your reporting systems. Compliance, finance and technology teams should identify which systems may eventually need to capture or transmit LEI data - particularly if you file through more than one regulatory system.
5. Keep entity data accurate. Legal name and registered address are the fields that matter most, because they are what validation checks against.
For broader requirements, our U.S. LEI regulatory requirements page covers where LEIs already apply.