The two most significant pieces of international financial reporting legislation affecting international investors are the US Foreign Account Tax Compliance Act (FATCA) and the OECD Common Reporting Standard (CRS). Together, they have fundamentally changed the information landscape of international banking — creating automatic, government-to-government exchange of financial account data that makes undisclosed offshore accounts both practically visible and legally untenable.
Understanding what each regime requires, who it applies to, and what the consequences of non-compliance are is essential for any investor with foreign bank accounts.
FATCA: The US Framework
FATCA was enacted in 2010 and came into full effect in 2014. It applies to US persons — US citizens, US residents (green card holders and those meeting the Substantial Presence Test), and certain US-incorporated entities — regardless of where in the world they live or hold assets.
What FATCA Requires of Foreign Banks
Under FATCA, foreign financial institutions (FFIs) — meaning any bank, investment fund, or financial entity outside the US — must identify US-person account holders and report those accounts to the IRS. FFIs that do not comply face a 30% withholding tax on US-sourced income, which effectively bars them from participating in the US financial system. This gives every foreign bank a strong commercial incentive to comply.
In practice, FATCA means that every major bank in every significant jurisdiction — Cayman, Singapore, Switzerland, UAE, Panama, and beyond — reports US-person account information to the IRS annually, automatically.
What FATCA Requires of US Persons
FBAR (FinCEN Form 114): US persons with foreign financial accounts exceeding USD 10,000 in aggregate at any point during the calendar year must file an FBAR annually with the Financial Crimes Enforcement Network (FinCEN). The deadline is April 15 (with automatic extension to October 15). Failure to file carries penalties of up to USD 10,000 per violation for non-willful violations, and up to the greater of USD 100,000 or 50% of account balance per violation for willful violations.
Form 8938 (FATCA reporting): US persons with foreign financial assets above specified thresholds must file Form 8938 with their federal tax return. Thresholds vary by filing status and residency: USD 50,000 (single, US resident) to USD 400,000 (married filing jointly, resident abroad) at year-end, or USD 75,000–600,000 at any point during the year. Penalties for failure to file start at USD 10,000.
Important: FBAR and Form 8938 have different thresholds and cover different assets. It is possible to be required to file one but not the other. US persons with foreign accounts should confirm their obligations with a qualified US tax professional annually.
CRS: The Global Framework
The Common Reporting Standard was developed by the OECD and implemented by over 100 jurisdictions since 2014. Unlike FATCA (which applies to US persons specifically), CRS is a multilateral framework under which each participating jurisdiction automatically exchanges financial account information with the tax authority of each account holder’s country of residence.
If you are a UK resident with an account in Singapore, Singapore reports that account to HMRC. If you are a German resident with an account in the Cayman Islands, Cayman reports to the German tax authority. The exchange is automatic, annual, and covers account balances, interest income, dividends, and gross proceeds from asset sales.
What CRS Covers
CRS covers financial accounts held by individuals and entities at financial institutions in participating jurisdictions. A “financial account” includes deposit accounts, custodial accounts (holding securities), and certain insurance and annuity contracts. It does not cover real estate directly — though income from rental property reported to local tax authorities may be independently reported to your home country under separate tax treaty provisions.
CRS and Non-Participating Jurisdictions
Not every country in the world participates in CRS. The US, notably, does not participate as a sending jurisdiction (it has FATCA instead, and is not required to send CRS reports). A small number of other jurisdictions are also non-participants. However, the coverage is now broad enough that treating non-participating jurisdictions as a compliance solution is neither legal nor practical.
What This Means in Practice
For compliant investors — those who already declare their foreign accounts and report foreign income — FATCA and CRS change very little. The information their tax authority receives automatically is consistent with what they have already reported. Compliance is simplified, not complicated.
For non-compliant investors — those who have undisclosed foreign accounts — the risk of detection is now substantial and the consequences of detection are severe. Voluntary disclosure programmes exist in most jurisdictions and typically produce better outcomes than detected non-compliance, but the window for voluntary disclosure becomes less favourable over time.
Impact on International Banking Decisions
FATCA and CRS have had two practical consequences for international banking. First, some foreign banks have chosen not to accept US-person clients rather than manage the FATCA reporting burden — making certain jurisdictions less accessible for US investors than for other nationalities. Second, the KYC/AML process at account opening now routinely includes questions about tax residency and citizenship specifically designed to identify FATCA and CRS reporting obligations.
For non-US investors, CRS creates minimal friction if all accounts are declared. For US investors, FATCA creates meaningful compliance obligations that require professional advice and careful annual reporting — but do not prohibit international banking. They merely require that it be done transparently.
The Bottom Line
FATCA and CRS are the compliance architecture of modern international banking. For investors who approach international banking with full transparency — declaring all accounts, reporting all income, and filing the required forms — they create administrative obligations but not restrictions. For investors who do not approach international banking transparently, the detection risk in 2026 is high and the consequences are serious.
The right response to FATCA and CRS is not to avoid international banking — it is to structure international banking correctly, with appropriate professional advice, so that the compliance burden is manageable and the legal position is defensible.