BOI Reporting Penalty Calculator (Corporate Transparency Act)

How this calculator works

VERIFY CURRENT FinCEN GUIDANCE BEFORE RELYING ON ANY OUTPUT. BOI reporting under the Corporate Transparency Act has been subject to ongoing federal-court litigation (most notably National Small Business United v. Yellen) and a series of FinCEN interim final rules through 2024-2025. The reporting population and effective dates have shifted multiple times. As of May 2026, BOI reporting is back in effect for domestic reporting companies — but the current state of the rule should be confirmed at fincen.gov/boi before any operational decision is made.

This is the pre-flight check a closely-held business runs before filing — or before deciding NOT to file — its Beneficial Ownership Information report with the Financial Crimes Enforcement Network (FinCEN). The calculator resolves the applicable filing deadline from the formation date under the three-regime rule of 31 CFR section 1010.380(a)(1), surfaces the per-day civil penalty exposure at the 2025 inflation-adjusted rate of $591/day under 31 U.S.C. section 5336(h)(1), flags the criminal exposure for willful violations under section 5336(h)(3)(A), applies the 90-day safe harbor for inadvertent inaccuracies under section 5336(h)(3)(C), and screens the most commonly invoked exemption — the large-operating-company exemption requiring more than 20 full-time U.S. employees, a U.S. physical office, and more than $5,000,000 in gross receipts on the prior federal tax return.

The Corporate Transparency Act (CTA) was enacted as Title LXIV of the Anti-Money Laundering Act of 2020, which itself was Division F of the National Defense Authorization Act for Fiscal Year 2021 (Pub. L. 116-283). It is codified at 31 U.S.C. section 5336. The implementing regulation lives at 31 CFR section 1010.380. The statute requires most U.S. business entities to disclose information about their beneficial owners — individuals who own at least 25% of the entity or who exercise substantial control over it — to FinCEN. The stated purpose is to combat money laundering, terrorism finance, tax fraud, and other illicit finance, by removing the anonymity that closely-held corporate vehicles have historically provided.

A short history of the rule

The CTA was a long time coming. Congressional working groups had been studying beneficial-ownership disclosure since at least the early 2000s; the Financial Action Task Force (FATF), the international anti-money-laundering body, repeatedly cited the United States in its mutual-evaluation reports for failing to require beneficial-ownership disclosure at the state level of corporate formation. The 2016 Panama Papers leak — exposing the widespread use of opaque corporate vehicles for offshore tax evasion — gave the disclosure-disclosure movement renewed political momentum. After roughly four years of negotiation, the CTA was attached to the FY 2021 NDAA in late 2020 and enacted over a presidential veto on January 1, 2021.

FinCEN published the final BOI reporting rule at 87 Fed. Reg. 59498 on September 30, 2022, with an effective date of January 1, 2024 — giving FinCEN, secretaries of state, and the regulated population just over 15 months to prepare. The agency stood up the BOI E-Filing portal at boiefiling.fincen.gov and published the Small Entity Compliance Guide and a 50+ page BOI FAQ during 2023.

The first wave of mandatory reporting was scheduled for calendar year 2024, with pre-2024 entities having until January 1, 2025 to file, 2024-formation entities having 90 calendar days, and 2025-and-later entities having 30 calendar days. FinCEN estimated the regulated population at approximately 32 million reporting companies in the first year, dropping to a few million ongoing per year in steady state.

The three deadline regimes under 31 CFR section 1010.380(a)

The filing deadline depends on when the reporting company was formed or first registered to do business in the United States. The three regimes:

Pre-2024 entities. Companies in existence before January 1, 2024 — the bulk of the regulated population — had a one-time deadline of January 1, 2025 to file their initial BOI report. This was a hard date, not a rolling window. An LLC formed in 2018 had the same deadline as a corporation formed in 2003.

2024-formation entities. Companies formed or first registered between January 1, 2024 and December 31, 2024 have 90 calendar days from the date of formation or registration. The clock runs on calendar days, with no extension for weekends or holidays.

2025-and-after entities. Companies formed or first registered on or after January 1, 2025 have 30 calendar days from the date of formation or registration. The window was shortened from the original 90 days under a December 2023 FinCEN amendment, on the rationale that 30 days is enough lead time for any well-counseled formation and the longer window had created a noticeable gap in the surveillance pipeline.

Updates and corrections. Updates to ownership information — changes in beneficial owners, changes in a beneficial owner's identifying information (name, address, identification document), changes in company-applicant information for post-2024 entities — must be filed within 30 calendar days of the change under 31 CFR section 1010.380(a)(2). This is the ongoing reporting obligation that survives the initial filing and is the most common source of inadvertent non-compliance.

The $591/day civil penalty mechanics

Under 31 U.S.C. section 5336(h)(1), a willful violation — failure to file, filing of false information, or failure to update — is subject to a civil penalty of up to $591 per day. The CTA was originally enacted with a $500-per-day ceiling. The Federal Civil Penalties Inflation Adjustment Act Improvements Act of 2015 (Pub. L. 114-74) requires annual inflation adjustment under 31 U.S.C. section 5321, and the 2025 inflation-adjusted ceiling is $591 per day. The actual current rate is published in FinCEN's annual inflation-adjustment notice in the Federal Register; this calculator uses $591 as the operational figure but the rate should be verified against the current Federal Register notice before relying on the output for an enforcement matter.

A few important features of the per-day mechanic. First, the penalty attaches only to willful violations under section 5336(h)(1). Inadvertent non-filings — the entity did not know about the CTA, did not understand it applied, or had a good-faith reason to believe an exemption applied — are not subject to the per-day rate. Second, the per-day rate is a ceiling, not a fixed assessment. FinCEN has discretion to assess at or below the ceiling; the actual assessment will depend on the duration of non-compliance, the entity's size and sophistication, prior notice, and the reasonableness of any delay. Third, the rate is uncapped in aggregate at the statutory level. The calculator caps the displayed exposure at $250,000 to avoid presenting an absurd headline number for entities decades past their deadline, but the statute itself does not impose an aggregate ceiling on the per-day accrual.

The criminal exposure under section 5336(h)(3)

Under 31 U.S.C. section 5336(h)(3)(A), willful failure to file a BOI report or willful filing of false information carries criminal exposure of:

• Fines up to $10,000, AND
• Imprisonment up to 2 years.

The criminal exposure runs in addition to (not in lieu of) the per-day civil penalty. Both attach only on a finding of willfulness — knowing and deliberate non-compliance. The criminal exposure is the more serious lever in the FinCEN enforcement toolkit, though it requires referral from FinCEN to the Department of Justice and a federal prosecution. Criminal referrals for BOI violations have been rare so far, but the statutory exposure is real and should not be ignored on a willful-non-filing fact pattern.

The CTA also imposes criminal exposure on the UNAUTHORIZED DISCLOSURE side: under section 5336(c)(2)(C), a federal employee or other authorized recipient who knowingly discloses BOI in violation of the CTA's confidentiality rules is subject to fines up to $250,000 and imprisonment up to 5 years. That side of the criminal exposure does not run against the regulated population — it is a guardrail on government access — but it is a useful indicator of how seriously Congress took the confidentiality of the BOI database.

The 90-day safe harbor under section 5336(h)(3)(C)

The CTA provides a meaningful safe harbor for inadvertent inaccuracies. Under 31 U.S.C. section 5336(h)(3)(C), a person is not subject to civil or criminal penalty for the submission of inaccurate information if:

1. The inaccuracy is corrected within 90 calendar days of the original submission, AND
2. The person had no actual knowledge of the inaccuracy at the time of the original submission, AND
3. The correction is voluntary — made before FinCEN had initiated an inquiry or given notice of the violation.

The safe harbor is designed for good-faith errors caught and corrected promptly. It is broad enough to cover most inadvertent fact patterns: a beneficial owner's address was wrong, an identification document was uploaded for the wrong owner, the EIN was misstated. The fix in all of these cases is to file a corrected report at boiefiling.fincen.gov within 90 days of the original, and the entity is protected from both civil and criminal exposure.

The safe harbor does NOT apply to willful violations and does NOT apply to corrections made under FinCEN inquiry. Document the chain of internal notice — when the entity discovered the inaccuracy, who reported it, the date of correction — for the audit trail. This becomes load-bearing if FinCEN later challenges whether the correction was voluntary.

The twenty-three exemptions

The CTA exempts twenty-three categories of entities from the BOI reporting requirement. The full list under 31 U.S.C. section 5336(a)(11)(B) and 31 CFR section 1010.380(c)(2):

1. SEC-registered issuers (entities with securities registered under Exchange Act section 12)
2. U.S. governmental authorities
3. Regulated banks (federally insured depository institutions)
4. Federal or state credit unions
5. Bank or savings-and-loan holding companies
6. Money services businesses registered with FinCEN
7. SEC-registered broker-dealers
8. Securities exchanges and clearing agencies
9. Other Exchange Act registered entities
10. Investment Company Act registered investment companies and investment advisers
11. Venture capital fund advisers
12. State-regulated insurance companies
13. State-licensed insurance producers
14. Commodity Exchange Act registered entities
15. Accounting firms registered under the Sarbanes-Oxley Act
16. State-regulated public utilities
17. Financial-market utilities
18. Pooled investment vehicles operated by certain exempt entities
19. Tax-exempt entities under IRC section 501(c)
20. Entities assisting tax-exempt entities
21. Large operating companies — the three-prong test below
22. Subsidiaries of certain exempt entities
23. Inactive entities meeting the six-prong inactive-entity test

The two most commonly invoked exemptions are #21 (large operating company) and #23 (inactive entity).

Large operating company — the three-prong test

The large-operating-company exemption is the workhorse exemption for established small and mid-sized businesses. To qualify, an entity must satisfy ALL THREE prongs:

1. More than 20 full-time U.S. employees. Note "more than," not "at least" — an entity with exactly 20 does not qualify. The 20-employee threshold is measured on a per-entity basis, not on a consolidated basis across affiliates.

2. A U.S. physical office. The entity must have an operating presence at a physical office located in the United States. This is a physical-office requirement — a registered-agent address, a PO box, or a virtual-office address does not satisfy the prong. A coworking-space dedicated desk is generally acceptable; a coworking-space day pass is generally not.

3. More than $5,000,000 in gross receipts or sales on the prior federal tax return. Reported on line 1c of Form 1120 (C corporations), line 1c of Form 1065 (partnerships and most LLCs), or the equivalent line on Form 1120-S or other relevant form. The threshold is gross receipts before deductions, not net income. Newly-formed entities without a prior-year return cannot use this exemption in their first year.

All three prongs must be satisfied for the exemption to apply. If the entity satisfies the test in one year but loses it in the next (sales drop below $5M, headcount drops to 20, the U.S. office closes), the entity must file an initial BOI report within 30 calendar days of the change. The exemption is not "set it and forget it" — verify annually.

Inactive entity — the six-prong test

The inactive-entity exemption is narrow and rarely satisfied in practice. To qualify, an entity must satisfy ALL SIX prongs:

1. In existence on or before January 1, 2020 (no new dormant entities qualify),
2. Not engaged in active business,
3. Not owned, directly or indirectly, by a foreign person,
4. No change in ownership in the prior 12 months,
5. No funds sent or received exceeding $1,000 in the prior 12 months, AND
6. No assets — including any ownership interest in any other entity.

The "no assets" prong is the most often missed: a dormant LLC that holds the original $100 capital contribution does NOT qualify, because it has assets. The exemption is essentially a clean-shell exemption for entities that exist on paper but hold nothing and do nothing.

Worked example 1: pre-2024 entity, on-time filing

An LLC was formed in Delaware in 2018 and operates a small consulting business. The owner files the initial BOI report on December 15, 2024.

• Formation date: 2018-06-01.
• Deadline regime: pre-2024 entity → January 1, 2025.
• Filing date: 2024-12-15 (17 days before deadline).
• Days past deadline: 0.
• Civil penalty exposure: $0.
• Criminal exposure: None.

Clean filing. Maintain records of the FinCEN confirmation and update within 30 days of any beneficial-owner change.

Worked example 2: 2024 formation, 30 days late, inadvertent

An LLC was formed on March 10, 2024. The 90-day deadline was June 8, 2024. The owner — who was unaware of the CTA — filed the initial BOI report on July 8, 2024, 30 days late, after a CPA flagged the obligation during tax-prep onboarding.

• Formation date: 2024-03-10.
• Deadline regime: 2024 formation → formation + 90 days = June 8, 2024.
• Filing date: 2024-07-08 (30 days past deadline).
• Days past deadline: 30.
• Civil penalty raw accrual: $591 × 30 = $17,730.
• Willfulness: No (inadvertent — owner unaware of obligation).
• Safe harbor: Applies if the entity files the original report (not just a correction) within the 90-day window from when the obligation accrued AND the violation is non-willful. The safe-harbor language in section 5336(h)(3)(C) is written for corrections of inaccurate information; FinCEN has indicated through informal guidance that good-faith late initial filings should be treated leniently, though the statutory safe harbor on its face addresses inaccuracies rather than late filings. The conservative practitioner files immediately and documents the inadvertent nature for the audit trail.

The exposure is in the gray zone. The conservative course is to file immediately, document the inadvertence, and respond promptly to any FinCEN inquiry.

Worked example 3: pre-2024 entity, 6 months past deadline, willful

An LLC was formed in 2018. The owner read about the CTA in 2024, decided not to file, and remained unfiled through July 1, 2025 — 6 months past the January 1, 2025 deadline.

• Formation date: 2018-06-01.
• Deadline: January 1, 2025.
• As-of date: 2025-07-01.
• Days past deadline: 181.
• Civil penalty raw accrual: $591 × 181 = $106,971.
• Civil penalty (capped for display at $250,000): $106,971.
• Willfulness: Yes (knowing and deliberate non-filing).
• Criminal exposure: EXPOSED — fines up to $10,000 and imprisonment up to 2 years under section 5336(h)(3)(A).

The conservative course is to file immediately, retain counsel to manage any FinCEN inquiry, and prepare for the criminal-exposure conversation. The civil exposure on its own is meaningful; the criminal exposure is the more serious lever.

Worked example 4: large-operating-company exemption claimed

An S-corporation operates a regional distribution business. It has 45 full-time U.S. employees, a physical office in Atlanta, and reported $18,000,000 in gross receipts on its 2024 Form 1120-S.

• Formation date: 2010-08-15 (pre-2024).
• Three-prong test: passes all three — more than 20 FTE, U.S. physical office, more than $5M gross receipts.
• Filing requirement: Exempt.
• Civil penalty exposure: $0.
• Criminal exposure: None.

Retain documentation supporting the exemption (payroll records, federal tax return showing more than $5M gross receipts, evidence of the Atlanta office) in case of FinCEN inquiry. Verify the exemption annually — if any prong fails in a future year (sales drop below $5M, headcount drops to 20), the initial BOI report becomes due within 30 calendar days of the change.

Common errors and how they get caught

The FinCEN intake validation engine catches a number of common errors at submission:

Wrong jurisdiction of formation. The entity reports the state where it does business rather than the state where it was originally formed. The system flags inconsistency against the state-of-formation registry.

Expired identification document. The uploaded driver's license has expired. The system flags expired documents on the date check.

Mismatched TIN. The EIN reported does not match IRS records. The system flags TIN inconsistency on cross-reference.

Incomplete company-applicant information. For entities formed on or after January 1, 2024, the company-applicant fields are required. The system rejects submissions missing the required fields.

Inactive-entity exemption claimed on a non-shell entity. A dormant LLC that holds the original $100 capital contribution does not qualify under the six-prong test. FinCEN reserves the right to challenge exemption claims and request supporting documentation.

25% threshold miscalculation on multi-tier ownership structures. The entity calculates ownership at the immediate level rather than on a fully-diluted look-through basis. Through Layer 1 a holder may have 30% direct ownership but only 18% on a look-through basis after Layer 2 dilution — the look-through figure is what controls.

The corrective action for any caught error is to file a correction within 90 days of the original submission to qualify for the safe harbor under 31 U.S.C. section 5336(h)(3)(C). Document the chain of internal notice for the audit trail.

The 2024-2025 litigation and interim rules

The CTA has been subject to ongoing federal-court litigation. In National Small Business United v. Yellen, No. 5:22-cv-1448, the U.S. District Court for the Northern District of Alabama in March 2024 held the CTA unconstitutional as applied to the plaintiffs, finding that Congress had exceeded its enumerated powers in enacting the statute. The court enjoined enforcement of the CTA against the plaintiffs (the National Small Business Association and approximately 65,000 of its members), but did not extend the injunction to the broader regulated population.

The Eleventh Circuit reversed in part on appeal during 2024-2025, and FinCEN issued a series of interim final rules through that period — at one point pausing enforcement against domestic reporting companies, then re-broadening the reporting population, then narrowing the scope, and back again. Parallel litigation in other circuits (notably Texas Top Cop Shop v. Garland in the Eastern District of Texas) added a nationwide preliminary injunction that was stayed and then dissolved through 2024 and early 2025.

The legal posture has been volatile. As of May 2026, BOI reporting is back in effect for domestic reporting companies under the most recent FinCEN interim final rule. But the situation has changed multiple times in the prior 18 months. Before relying on this calculator or on any external commentary that may be dated, verify the current state of FinCEN guidance at fincen.gov/boi. This calculator is a tool, not advice — the rapidly-evolving regulatory posture is the primary reason it carries the verify-current-guidance caveat at the top.

What this calculator does not do

This is a screening and planning tool. It does NOT substitute for a current review of FinCEN guidance at fincen.gov/boi. It does NOT model the full twenty-three-category exemption analysis — only the large-operating-company three-prong test, with a generic flag for the other categories. It does NOT model the company-applicant requirement for post-2024 entities (the company-applicant is a separate filing record, not a penalty trigger). It does NOT model the multi-tier look-through analysis for the 25% beneficial-owner threshold. It does NOT model state-level beneficial-ownership disclosure regimes (notably New York's LLC Transparency Act, which has a separate filing track at the state level). For complex multi-tier structures, exempt-entity boundary cases, or fact-intensive willfulness questions, retain counsel familiar with FinCEN practice.

How this page is maintained

The CTA's underlying statutory framework has been stable since enactment in January 2021. The implementing rule at 31 CFR section 1010.380 has been amended once (December 2023, shortening the 2025-and-later formation window from 90 to 30 days). The civil-penalty rate is inflation-adjusted annually; the 2025 rate is $591/day under the FinCEN inflation-adjustment notice. The litigation posture and FinCEN's enforcement scope have been volatile — multiple interim final rules during 2024-2025 — and the live state of the rule should be verified before reliance.

Last reviewed: 2026-05-16 against 31 U.S.C. section 5336 (Corporate Transparency Act), 31 U.S.C. section 5336(a)(11)(B) (twenty-three exemptions), 31 U.S.C. section 5336(b)(1) (reporting requirement), 31 U.S.C. section 5336(h)(1) (civil penalty up to $591/day, 2025 inflation-adjusted), 31 U.S.C. section 5336(h)(3)(A) (criminal penalty up to $10,000 + 2 years imprisonment), 31 U.S.C. section 5336(h)(3)(C) (90-day safe harbor), 31 U.S.C. section 5321 (Federal Civil Penalties Inflation Adjustment Act), 31 CFR section 1010.380 (FinCEN BOI rule), 31 CFR section 1010.380(a)(1) (three-regime filing windows), 31 CFR section 1010.380(a)(2) (30-day update window), 31 CFR section 1010.380(c)(2) (exemption enumeration), 31 CFR section 1010.380(d) (beneficial-owner definition), 31 CFR section 1010.380(e) (company-applicant definition), Anti-Money Laundering Act of 2020 (Title LXIV of Pub. L. 116-283), Federal Civil Penalties Inflation Adjustment Act Improvements Act of 2015 (Pub. L. 114-74), FinCEN BOI Final Rule at 87 Fed. Reg. 59498 (Sept. 30, 2022), the FinCEN BOI Small Entity Compliance Guide, the FinCEN BOI FAQ, and the docket in National Small Business United v. Yellen.