What methodology do congressional financial disclosures use to report business interests and valuation ranges?

Checked on January 28, 2026
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Executive summary

Congressional financial disclosure rules require filers to list business interests and asset values using predefined value ranges (categories of value) rather than exact dollar amounts, with templates and instructions set by House and Senate ethics offices under the Ethics in Government Act (EIGA) and implemented alongside the STOCK Act [1] [2] [3]. The system specifies what types of business positions and property must be reported, ties valuation to specific dates or reporting periods, and leaves substantial room for interpretation and public-analysis techniques that convert ranges into estimated numeric values [4] [5].

1. Legal framework: EIGA and Congressional ethics offices set the rules

The requirement to file annual financial disclosure reports stems from the Ethics in Government Act (EIGA), which mandates reporting of income, positions, assets, liabilities and agreements and delegates administration to the House and Senate ethics committees and clerks for filing and public release [6] [2] [3]. The STOCK Act added transparency features—such as electronic filing and more frequent reporting of certain transactions—while maintaining the core EIGA approach to asset categories and reporting thresholds [5] [3].

2. The core methodology: categories of value, not precise appraisals

Official instructions make clear that, “except for earned income, the exact value of financial interests need not be disclosed; only the range within which an item falls—called the ‘category of value’—is required,” and reporting thresholds (for example, reporting assets with fair market value over $1,000) determine what must appear on the form [1] [6]. House and Senate instruction guides and form booklets specify value categories and tell filers which valuation date applies to each part of the report (e.g., year-end valuation for assets), reinforcing the use of ranges rather than precise valuations [3] [4].

3. What filers must disclose about business interests and ownership

Guidance requires disclosure of ownership interests in privately held partnerships, corporations, LLCs and other business entities, and mandates that positions related to those entities be reported on the appropriate sections of the form; filers are also asked to provide the complete name of the entity and underlying asset information when relevant [4] [7]. The House instructions specifically request supporting documents—brokerage statements, tax forms, or annual accounting for businesses owned—while setting thresholds for reporting income generated by assets (for example, more than $200) and transactions (more than $1,000) [2] [8].

4. How outside analysts convert ranges into estimates

Public watchdogs and researchers routinely translate the categorical disclosures into numeric estimates by assigning midpoint or floor values for each category and summing totals; OpenSecrets, for example, treats top-coded categories (e.g., “Over $50 million”) as specific proxy numbers when building net-worth estimates and records valuation as of the last day of the reporting year [5] [9]. These methodologies are disclosure-driven workarounds that attempt to produce actionable totals from intentionally imprecise official reporting [5] [10].

5. Known limits, criticisms and reform proposals

The categorical system draws predictable criticism: government audits and NGOs argue that broad ranges, differing thresholds across rules, and gaps in disclosure (such as limited spouse-income reporting and weak partner/co-owner identification) impede meaningful public oversight, and GAO has recommended revisiting categories, thresholds and consistency to balance burden and usefulness [11] [12] [13]. Advocacy groups and GAO studies call for legislative or regulatory changes to tighten or refine what is reported, while ethics offices defend the structure as protecting privacy and reducing onerous valuation burdens on filers [11] [1].

6. Practical implications: transparency tradeoffs and enforcement

The current methodology yields a tradeoff: it provides standardized, public data that highlights potential conflicts and ownership links without requiring appraisals, but it limits precision and enables diverging interpretations by researchers and reporters; enforcement and remedial steps remain centered on ethics officials reviewing reports and negotiating conflict-resolution agreements when necessary [6] [2] [11]. Where journalists, watchdogs or the public require more precision, the only reliable remedies under current law are targeted inquiries, voluntary disclosures, or legislative reform to change thresholds and category rules [11] [12].

Want to dive deeper?
How do watchdog groups convert congressional disclosure ranges into net worth estimates?
What specific value categories are used on House and Senate disclosure forms and how have they changed over time?
What legislative proposals exist to change congressional financial disclosure thresholds and valuation categories?