Having an offshore bank account is not illegal for a U.S. citizen or resident. What is illegal is hiding the account, or the income it generates, from the federal government. As long as you report your foreign accounts to the Treasury Department and pay U.S. tax on whatever they earn, keeping money in a bank outside the United States is a lawful choice.
When an Offshore Account Becomes Illegal
The account itself is never the problem. The conduct around it is. A foreign account crosses into criminal territory the moment you use it to conceal something from the government or from someone with a legal claim on your assets.
The most common violation is tax evasion: deliberately leaving foreign interest, dividends, or capital gains off your tax return so you don’t pay tax on them. The IRS draws a hard line between a careless mistake and a willful attempt to defraud, and intent drives how severely you are punished.
Money laundering is the other frequent charge. Routing proceeds from fraud, drug trafficking, corruption, or other criminal activity through foreign accounts to disguise their origin is a federal crime that prosecutors pursue aggressively.
Using an offshore account to hide assets from creditors, conceal property during bankruptcy, or defy a court order in a divorce is also fraud. Legitimate asset protection planning done in advance is lawful. Moving money overseas after a lawsuit has been filed or a court has frozen your assets is not.
What You Have to Report
Two separate filing obligations apply to foreign accounts. They go to different agencies, have different thresholds, and you may owe one, both, or neither depending on how much you hold abroad.
FBAR (FinCEN Form 114)
The Report of Foreign Bank and Financial Accounts requires you to disclose every foreign financial account you own or control if the combined value of all of them tops $10,000 at any point during the year. The threshold is aggregate: three accounts holding $4,000 each put you over the line, and all three must be reported. The FBAR covers bank accounts, brokerage accounts, and mutual funds at foreign institutions, and it applies whether or not the accounts generated any taxable income.1Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR)
Accounts held inside an IRA you own or a retirement plan in which you participate are exempt.1Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR)
The FBAR is filed electronically through FinCEN’s BSA E-Filing System, not with your tax return.2Financial Crimes Enforcement Network. How Do I File the FBAR? The deadline is April 15, with an automatic extension to October 15 that requires no separate request.3Financial Crimes Enforcement Network. Due Date for FBARs
Form 8938 (FATCA)
The Foreign Account Tax Compliance Act added a second layer. Form 8938 is attached to your annual income tax return and goes to the IRS. Its thresholds are higher than the FBAR’s and depend on your filing status and where you live.4Internal Revenue Service. Do I Need to File Form 8938, Statement of Specified Foreign Financial Assets
For taxpayers living in the United States, single filers must file if total foreign assets exceed $50,000 on the last day of the tax year or $75,000 at any time during the year. For married couples filing jointly, the thresholds are $100,000 and $150,000.
For taxpayers living abroad, the thresholds rise sharply: $200,000 and $300,000 for single filers, and $400,000 and $600,000 for married couples filing jointly.4Internal Revenue Service. Do I Need to File Form 8938, Statement of Specified Foreign Financial Assets
Form 8938 covers a broader range of assets than the FBAR, including foreign stocks, partnership interests, and financial instruments issued by foreign entities. Filing one form does not excuse you from the other, and many people with significant foreign holdings must file both.5Internal Revenue Service. Instructions for Form 8938
Paying Tax on What the Account Earns
The United States taxes citizens and residents on worldwide income, no matter where the money sits. Interest, dividends, capital gains, and any other profits earned in a foreign account are subject to U.S. income tax and must appear on your return. Interest and dividends go on Schedule B of Form 1040, and Part III of that schedule specifically asks whether you hold any foreign financial accounts.6Internal Revenue Service. About Schedule B (Form 1040), Interest and Ordinary Dividends
Reporting the account and paying tax on its income are two independent duties. You can disclose every account on your FBAR and Form 8938 and still face prosecution if you leave the income off your return. The reverse is also true. Paying tax on foreign interest does not relieve you of filing the FBAR.
If a foreign country taxes the same income the U.S. taxes, the foreign tax credit lets you offset your U.S. bill by the amount already paid abroad on that income. You claim it on Form 1116. One catch: if you use the foreign earned income exclusion to shield wages earned abroad, you cannot also claim the foreign tax credit on that same excluded income.7Internal Revenue Service. Foreign Tax Credit
What Non-Compliance Costs
Penalties scale sharply with intent, and even the honest-mistake tier is expensive.
A non-willful failure to file an FBAR carries a penalty of up to $16,536 per violation. If the IRS determines the failure was willful, the penalty jumps to the greater of $165,353 or 50% of the highest balance in the unreported account for each year of the violation.8Federal Register. Inflation Adjustment of Civil Monetary Penalties Both figures are adjusted annually for inflation. The IRS has six years from the FBAR’s due date to assess these penalties, so cumulative amounts can exceed the account balance itself.9Internal Revenue Service. Extending the FBAR Penalty Assessment Period
Failing to file Form 8938 triggers an initial $10,000 penalty. If you still haven’t filed 90 days after the IRS sends a notice, an additional $10,000 penalty accrues for every 30-day period the failure continues, up to $50,000 in additional penalties.10Office of the Law Revision Counsel. 26 USC 6038D – Information With Respect to Foreign Financial Assets
Willful FBAR violations can bring a criminal fine of up to $250,000 and up to five years in prison. If the violation is part of a broader pattern of illegal activity involving more than $100,000 in a 12-month period, those maximums double to $500,000 and ten years.11Office of the Law Revision Counsel. 31 US Code 5322 – Criminal Penalties Tax evasion under the Internal Revenue Code is a separate charge, carrying a fine of up to $100,000 and up to five years in prison.12Office of the Law Revision Counsel. 26 USC 7201 – Attempt to Evade or Defeat Tax Prosecutors can stack these charges, so a single unreported offshore account can expose you to both.
If You’ve Already Fallen Behind
The IRS offers several paths back into compliance. The right one depends on how much tax you owe and whether your failure was willful.
If you reported all your foreign income on your tax returns and paid the tax, but simply missed the FBAR filings, you can submit the late FBARs through FinCEN’s BSA E-Filing System with a statement explaining why they’re late. As long as the IRS hasn’t already contacted you about an examination or requested delinquent returns, no penalty will be imposed for the late filings.13Internal Revenue Service. Delinquent FBAR Submission Procedures
If you owe back taxes on unreported foreign income, the Streamlined Filing Compliance Procedures let you file amended returns and late FBARs with reduced penalties, provided you certify that the failure was non-willful, meaning it resulted from negligence, inadvertence, or a good faith misunderstanding of the law. You are ineligible if the IRS has already begun a civil examination or criminal investigation.14Internal Revenue Service. Streamlined Filing Compliance Procedures
Taxpayers living in the United States pay a one-time penalty equal to 5% of the highest aggregate balance of their unreported foreign financial assets during the covered period.15Internal Revenue Service. U.S. Taxpayers Residing in the United States Taxpayers living abroad who meet additional residency requirements face no miscellaneous offshore penalty at all. Compared to the standard willful penalties, either version is a significant discount.
Opening a Foreign Account as a U.S. Citizen
The account is legal to hold, but getting one can be harder than you’d expect. FATCA requires foreign financial institutions to report account information on their U.S. clients directly to the IRS. The compliance cost has made many foreign banks reluctant to accept American customers, and some refuse outright because the paperwork isn’t worth the business.16Internal Revenue Service. Summary of FATCA Reporting for U.S. Taxpayers
Banks that do accept U.S. clients typically ask for a valid passport, proof of local address, a Social Security number or taxpayer identification number, and sometimes a reference from your existing bank. If you’re an expat, applying in person at a branch in the country where you live or work tends to go more smoothly than applying remotely.