── ── Tax & compliance
FBAR vs Form 8938: Which Foreign-Account Rules Apply to You (and Your Clients)?
August 3, 2026 · 6 min read · By Brad Ju
FBAR (FinCEN Form 114) and Form 8938 are two separate foreign-asset reports with different thresholds, different filing systems, and separate penalties — filing one does not excuse the other. FBAR triggers at $10,000 aggregate in foreign accounts and goes to FinCEN; Form 8938 starts at $50,000 in specified foreign assets and files with your tax return.
FBAR and Form 8938 are the two reports that catch cross-border clients off guard — and they are not the same filing. FBAR (FinCEN Form 114) reports foreign financial accounts to FinCEN once your aggregate balance tops $10,000 at any point in the year. Form 8938 reports specified foreign financial assets to the IRS with your tax return, starting at $50,000. Many taxpayers owe both. Filing one does not excuse the other, and each carries its own penalty regime.
What's the difference at a glance?
| FBAR (FinCEN Form 114) | Form 8938 (FATCA) | |
|---|---|---|
| Filed with | FinCEN, via the BSA e-filing system — separate from your tax return | The IRS, attached to your Form 1040 |
| Threshold | $10,000 aggregate across all foreign accounts, at any time during the year | $50,000 (last day) or $75,000 (any time) for single filers living in the US; doubled for joint filers; much higher if you live abroad |
| What counts | Foreign bank, brokerage, and most financial accounts — including accounts where you only have signature authority | Broader asset classes: foreign accounts plus directly-held foreign stock, foreign partnership interests, foreign-issued instruments — but not signature-authority-only accounts |
| Deadline | April 15, with an automatic extension to October 15 — no request needed | Your tax return's deadline, extensions included |
| Baseline penalty | Up to $10,000 (inflation-adjusted) per non-willful violation; willful: the greater of $100,000 or 50% of the account balance | $10,000 for failure to file, up to $50,000 more for continued failure, plus a 40% accuracy penalty on related understatements |
Why do people file one and miss the other?
Because the two reports live in different systems. FBAR never touches the tax return, so a self-preparer who diligently files their 1040 can miss it entirely. Form 8938 hides in the opposite direction: taxpayers who have filed FBARs for years assume they're covered and skip the new attachment. The asset scopes overlap but don't match — signature authority over a parent's account can trigger FBAR but not 8938, while directly-held foreign stock triggers 8938 but not FBAR.
How bad are the penalties really?
For non-willful FBAR misses, the Supreme Court's Bittner decision (2023) capped the penalty per report, not per account — a genuine break for people with many small accounts. Willful violations are another world: the greater of $100,000 or half the account balance, per year, with criminal exposure on top. Form 8938 adds a quieter risk — an unfiled 8938 can hold the statute of limitations open on your entire return.
What should you do if filings were missed?
Don't quietly backfile and hope. If you reported all income and just missed the forms, the Delinquent FBAR Submission Procedures exist for exactly that. If income went unreported too, the Streamlined Filing Compliance Procedures offer reduced penalties for non-willful conduct — but eligibility turns on facts a professional should assess before anything gets submitted.
For preparers, the harder problem isn't knowing these rules — it's surfacing which of your 400 clients have foreign exposure at all, and getting the statements out of them before deadlines stack up. That's a process problem, not a knowledge problem.
Run it as a process, not a memory
deciqAI's tax-compliance pack turns foreign-asset screening into a repeatable workflow — exposure checks per client, deadline tracking, and document collection over signed upload links (clients drop files against a checklist; the product never reads anyone's inbox). See deciqai.com/solutions/tax-compliance.
FAQ
Do I need to file both FBAR and Form 8938?
If you meet both thresholds, yes — they are separate requirements filed with separate agencies, and filing one does not satisfy the other. Many cross-border taxpayers owe both in the same year.
What is the FBAR filing threshold?
$10,000 aggregate across all foreign financial accounts at any point in the calendar year. It's the combined total, not per account — two accounts holding $6,000 each put you over.
What are the Form 8938 thresholds?
For single filers living in the US: over $50,000 in specified foreign assets on the last day of the year, or over $75,000 at any time. Joint filers double those numbers. Taxpayers living abroad get much higher thresholds — $200,000/$300,000 single, $400,000/$600,000 joint.
Is the FBAR deadline the same as the tax deadline?
The FBAR is due April 15 but carries an automatic extension to October 15 — you don't need to request it. Form 8938 follows your tax return's deadline, including any extension you filed for.
What if I missed FBAR filings for past years?
If all income was reported, the Delinquent FBAR Submission Procedures let you catch up. If income was missed too, the Streamlined Filing Compliance Procedures reduce penalties for non-willful conduct. Get a professional read on willfulness before submitting anything.