Aggregate Peak Rule (31 CFR 1010.350): The $10,000 USD threshold applies to the **COMBINED PEAK BALANCE** of ALL foreign accounts at any point during the year, NOT per individual account!
FBAR Peak Balance Calculator
Statutory Regulations & Rules
| Statutory Citation | Legal Subject | Operational Penalty / Mandate |
|---|---|---|
| 31 U.S.C. § 5314 | Foreign Financial Account Reporting | Mandates annual reporting of foreign bank & financial accounts. |
| 31 CFR § 1010.350 | FinCEN Form 114 Definition | Defines US Person, financial interest, and $10k aggregate peak calculation. |
| Bittner v. United States | Supreme Court Non-Willful Cap | Limits non-willful FBAR penalty to per-form violation rather than per-account. |
Tax Compliance Tools
Explore FATCA Form 8938 thresholds, Foreign Gift Form 3520 calculators, and Substantial Presence Test rules.
View FATCA Form 8938 Tool →View Foreign Gift Tool →