What happens if I don't report a foreign bank account as a US person?

Wilful failure to file FBAR carries penalties of the greater of $100,000 or 50% of the account balance per violation per year. The IRS has criminal prosecution authority for wilful violations. Non-wilful violations carry up to $10,000 per violation. Voluntary disclosure programmes exist for historic non-disclosure.

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Can Americans Open Offshore Bank Accounts?

Yes — US persons can legally hold offshore bank accounts. However, FATCA imposes significant reporting obligations on foreign financial institutions with US account holders, and many offshore banks have restricted US client relationships. US persons must report foreign accounts via FBAR and Form 8938, and penalties for non-disclosure are severe.

The Full Answer

US Persons and Offshore Banking

US citizens, US permanent residents and entities with US beneficial ownership can legally hold bank accounts in foreign jurisdictions. Offshore banking by US persons is entirely legal — but it comes with significant disclosure and reporting obligations that are more onerous than for most other nationalities.

The key US reporting obligations for offshore accounts are:

FBAR (FinCEN Form 114): Required if aggregate value of all foreign financial accounts exceeds $10,000 at any point during the calendar year. Filed annually with FinCEN. Penalties for wilful non-filing can be the greater of $100,000 or 50% of account balance per violation.
Form 8938 (FATCA): Required if total foreign financial assets exceed $50,000 (higher thresholds for married couples and overseas residents). Filed with annual US tax return (Form 1040).
Foreign income reporting: All income earned in foreign accounts — interest, dividends, capital gains — must be reported on the US tax return. The US taxes citizens on worldwide income regardless of residency.

Many foreign banks — particularly in Switzerland, Singapore and other major private banking centres — have chosen to restrict or exit US client relationships entirely because of the compliance cost and legal liability under FATCA. Some private banks do accept US clients but the account opening process is significantly more demanding.

The US is unusual in taxing citizens on worldwide income regardless of where they live. Even a US citizen living abroad remains subject to US tax on global income and must maintain all relevant reporting obligations. US persons should always obtain specialist US tax advice (from a CPA or tax attorney familiar with international tax) before opening any offshore accounts.

Many major international private banks in Singapore, Switzerland and other centres accept US clients but the process is more demanding than for non-US persons. Generally, US clients with significant assets (typically USD 1 million or more) who are willing to provide full US tax documentation (W-9, FATCA certifications) are more likely to be accepted. Some smaller boutique private banks and banks in certain jurisdictions have chosen to exit the US market entirely due to FATCA compliance costs. The practical availability varies significantly by institution and jurisdiction — it is worth working with a specialist advisor who can identify institutions currently accepting US clients.

Non-disclosure of reportable foreign accounts is extremely serious. Wilful failure to file FBAR carries penalties of the greater of $100,000 or 50% of the account balance per violation per year — potentially exceeding the account value itself over multiple years. The IRS also has criminal prosecution authority for wilful FBAR violations. Non-wilful FBAR violations carry penalties of up to $10,000 per violation. FATCA Form 8938 non-filing penalties start at $10,000 with additional penalties for continued failure. The IRS operates voluntary disclosure programmes for US persons who have not previously reported foreign accounts — specialist US tax counsel should be consulted immediately if there are historic non-disclosure issues.

Renouncing US citizenship does eliminate future US worldwide income tax obligations and FBAR/FATCA filing requirements — but the process is complex, expensive and triggers an exit tax. US citizens renouncing citizenship who are "covered expatriates" (meeting net worth or average annual tax thresholds) are subject to an exit tax on unrealised gains in worldwide assets as if they were sold on the date of expatriation. The renunciation fee is currently $2,350. All outstanding US tax and reporting obligations must be settled before renunciation is effective. This is a significant and irreversible decision that should only be made after extensive consultation with US tax attorneys.

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