FBAR vs. FATCA (Form 8938) — What's the Difference?
FinCEN 보고 vs. IRS 신고 — 한국인을 위한 2026 완전 비교 해설

Overview — At a Glance 개요 — 핵심 비교

Thresholds — $10,000 vs. $50,000+ 신고 기준 금액 비교

What Each Form Reports — Asset-by-Asset 항목별 신고 대상 비교

The core conceptual difference: FBAR reports foreign financial accounts(where money is held at a financial institution). FATCA reports foreign financial assets — a broader category that includes securities held directly (even outside a financial account) and non-account financial rights (pension entitlements, partnership interests, derivatives).

Full Comparison Table 전체 비교표

2026 Penalties — Corrected Figures 2026 페널티 — 수정된 수치

Korea FATCA IGA — Why It Matters 한국 FATCA IGA — 한국 은행이 IRS에 직접 보고

Practical Implications of Korea's IGA Status

• Korean banks actively identify U.S. persons: When you open a Korean bank account or update your information, the bank will ask whether you are a U.S. person (citizen, green card holder, or U.S. tax resident). If you answer "yes" or if the bank flags indicators of U.S. person status (e.g., a U.S. address or phone number on file), your account information is reported. If you answer "no" when the correct answer is "yes," this creates additional legal risk.
• IRS data-matching creates audit risk for non-filers: If the IRS receives data on your Korean accounts through FATCA/IGA reporting and does not receive a corresponding FBAR or Form 8938 from you, this mismatch may trigger an automatic compliance letter or audit. "I didn't know I had to file" becomes harder to sustain as a defense when the IRS already has the account data.
• The IGA covers major Korean banks: KB, Shinhan, Woori, NH Nonghyup, Hana, KakaoBank, and Korean securities firms are all participating FATCA-reporting institutions under the IGA. If you hold accounts at any of these institutions as a U.S. person, those accounts are being reported to the Korean NTS and ultimately to the IRS.
• Not a substitute for filing: The IGA reporting by Korean banks does not substitute for or satisfy your FBAR or Form 8938 obligation. The FBAR and Form 8938 are still required — the IGA reporting simply means the IRS may already know about the accounts before you file.

Who Must File Both 두 가지 모두 신고해야 하는 경우

The FBAR and Form 8938 have overlapping but not identical asset coverage. The majority of Korean nationals and Korean-Americans who trigger FBAR will also trigger Form 8938 once Korean assets accumulate above the FATCA threshold — because FATCA covers everything FBAR covers plus additional asset categories.

5 Korean Case Examples 한국인 실제 사례 5개

Common Mistakes 자주 발생하는 오류

• 1 Thinking filing FBAR satisfies Form 8938 or vice versa. FBAR is filed with FinCEN (Treasury Department). Form 8938 is filed with the IRS attached to Form 1040. These are entirely separate filing obligations under different laws. Submitting one does not satisfy or replace the other. Both must be filed independently when their respective thresholds are met.
• 2 Not reporting Korean brokerage accounts because "they're investments, not bank accounts." Korean securities accounts — holding Korean stocks, ETFs, bonds, or cash — are foreign financial accounts for FBAR purposes and specified foreign financial assets for FATCA. Both FBAR and Form 8938 require reporting. The common misconception that "FBAR is only for bank accounts" causes Korean brokerage accounts to be systematically overlooked.
• 3 Reporting only the December 31 balance rather than the maximum balance during the year. Both FBAR and FATCA require the highest value during the year, not the year-end balance. An account that peaked at $85,000 in June and ended at $12,000 on December 31 must report $85,000 as the maximum value for both FBAR and Form 8938 purposes.
• 4 Omitting Korean life insurance with cash surrender value from Form 8938. Korean whole life and universal life policies with cash value are "specified foreign financial assets" for FATCA purposes — even though they are not reportable on the FBAR. Many Korean nationals hold these policies from prior Korean employment or family estate planning. They must be reported on Form 8938 if the FATCA threshold is met.
• 5 Assuming that because Korea is a "FATCA partner country," personal filing is unnecessary. Korea's IGA requires Korean banks to report U.S. account holders' data to the Korean NTS (which transmits to the IRS). This does NOT substitute for the individual's FBAR or Form 8938 obligation. Both filings remain mandatory — the IGA reporting is supplemental, not a replacement.
• 6 Using incorrect 2026 FBAR penalty figures in risk assessments. The 2026 non-willful FBAR penalty is $16,536 per annual form — not the statutory base of $10,000 that the original document states. Willful penalties are the greater of $165,353 or 50% of account balance per account per year — not simply "50% of account balance." Understating these figures leads to underestimating the compliance stakes.
• 7 Treating FATCA Form 8938 as optional because FBAR was filed and no Korean income was earned. Form 8938 is required when the threshold is met regardless of whether any Korean income was earned, any Korean taxes were paid, or any tax is owed in the U.S. on the Korean assets. It is an information return — the $10,000 penalty applies even when no U.S. tax liability exists related to the foreign assets.
• 8 Not accounting for FATCA when a treaty non-residency claim is made. A U.S. green card holder who claims Korean treaty residency via Form 8833 still owes both FBAR (BSA obligation, not modified by treaty) and Form 8938 (which may be modified depending on the treaty residency position — analyze with a CPA). Neither obligation is automatically eliminated by a treaty position.

Hanmi CPA Insight