FBAR Penalty Estimator 2026: Calculate Your Non-Wilful Penalty Risk

Use this free FBAR penalty estimator to understand your potential exposure under the Bittner v. United States (2023) Supreme Court ruling, which confirmed that non-wilful FBAR penalties apply per report (per year), not per account. Enter your details below to estimate your penalty risk.

Understanding FBAR Penalties After Bittner (2023)

The Supreme Court’s 2023 ruling in Bittner v. United States significantly limited FBAR penalty exposure for non-wilful violations. The Court held that the $10,000 non-wilful penalty applies per annual FBAR report, not per individual account. This means a taxpayer with 10 foreign accounts who missed 3 years of FBARs faces a maximum non-wilful penalty of $30,000 (3 × $10,000) — not $300,000 (3 × 10 accounts × $10,000).

This is a major change from the IRS’s prior position and significantly reduces penalty exposure for many US expats with unfiled FBARs. However, the IRS has not conceded this position in all cases, and earlier-year assessments may still require legal challenge.

Penalty Reduction Strategies

• Delinquent FBAR Submission Procedures: For taxpayers with no unreported income — file FBARs with a reasonable cause statement, potentially with zero penalty
• IRS Streamlined Filing: For non-wilful failures involving unreported income — offshore penalty capped at 5% of highest balance (or zero for Foreign Offshore)
• First-Time Abatement: Not directly applicable to FBAR (FinCEN penalties), but IRS discretion may be exercised
• Reasonable Cause: Documented evidence of genuine unawareness or reliance on professional advice can eliminate or reduce penalties

This calculator provides estimates only. Actual penalties depend on specific facts, IRS discretion, and applicable defences. Contact us for a personalised FBAR penalty assessment.