Can You Lose Your U.S. Citizenship by Living Abroad and Not Filing Taxes?

No. Living abroad and not filing U.S. tax returns does not cause you to lose your U.S. citizenship. Citizenship can only end through a voluntary, formal act of relinquishment at a U.S. Embassy or consulate. Until you take that step, you remain a U.S. citizen with full worldwide tax filing obligations regardless of how long you have lived outside the country (IRS: U.S. Citizens and Resident Aliens Abroad).

Common myths vs. reality:

What can actually end citizenship:

• Formal renunciation before a U.S. consular officer (oath of renunciation)
• Voluntary relinquishment through an expatriating act performed with the specific intent to relinquish (e.g., serving in a foreign military against the U.S., committing treason)
• Both require a Certificate of Loss of Nationality (CLN) issued by the State Department

Consequences of not filing while abroad:

• Penalties accumulate: failure-to-file penalty (5%/month, max 25%), failure-to-pay penalty, interest
• FBAR penalties for unreported foreign accounts ($10,000+ per account per year for non-willful violations)
• Passport revocation if seriously delinquent tax debt exceeds $65,000 (2025)
• Streamlined Foreign Offshore Procedures can resolve non-willful non-filing without penalties

If you are a U.S. citizen who has lived abroad for years without filing, you still owe all back returns. The filing obligation does not expire.

For more, see our Accidental American Taxes guide.