0226 Publ 6129 (PDF)

Official source: IRS Forms, Instructions & Publications (https://www.irs.gov/pub/irs-pdf/p6129.pdf), retrieved 2026-10-03. U.S. Government work (17 U.S.C. § 105).

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BSA data is a critical component for IRS Criminal Investigation (IRS-CI) to identify and investigate evolving and increasingly complex financial crimes. Documented metrics demonstrate the value of BSA information through enhancement and acceleration of IRS-CI investigations.

BSA Data Enhances IRS-CI Priorities and Investigations

1 Currency Transaction Reports (CTRs) 2 Suspicious Activity Reports (SARs)

BSA Investigative Impact

INVESTIGATION TYPE

BSA Filings Associated with Primary Subjects

BSA-Initiated Investigations

INVESTIGATION TYPE

% initiated .5 from F8300

% initiated .2 from a CTR

3 Some investigations may include multiple criminal activity types

BSA: Currency Transaction Reporting

CTRs are BSA filings that capture single or multiple cash transactions that exceed $10,000 in one business day.

Investigative impact of CTR threshold at $20,000.

4 Aggregated CTR: A CTR filed when a financial institution combines multiple cash transactions totaling over $10,000 in a single business day, made by or on behalf of the same customer, even if the transactions occur at different times, locations, or accounts.

BSA Impact on Combating Crime (FY23–25)

Publication 6129 (2-2026) Catalog Number 96052A Department of the Treasury Internal Revenue Service www.irs.gov