Concept
Expatriation is the legal end of U.S. citizenship or, for certain long-term green card holders, the end of U.S. tax residency. It is not a shortcut around unresolved tax filings. The U.S. tax system uses a separate covered-expatriate regime, exit tax rules and Form 8854 reporting.
The IRS explains the tax side on its expatriation tax page. The State Department explains the nationality side on Relinquishing U.S. Nationality Abroad.
Who is in scope
The regime can apply to U.S. citizens who relinquish citizenship and to long-term lawful permanent residents who terminate U.S. residency for tax purposes. A long-term resident is generally a lawful permanent resident in at least 8 of the last 15 tax years ending with the year residency ends. A green card holder should not assume that abandoning the card ends all tax issues. Treaty positions, long-term resident status and Form 8854 can still matter.
Before taking an immigration step, build a five-year tax compliance file and a current balance sheet. The tax answer depends on facts that are often hard to reconstruct after the consular or immigration event.
Covered expatriate tests
Covered expatriate status is generally tested through three screens: net worth, average annual net income tax liability and five-year tax compliance certification.
Net worth
A person is covered if net worth is US$2,000,000 or more on the expatriation date. This threshold is set by statute and is not adjusted for inflation.
Average income tax
A person is covered if average annual net income tax for the five years before expatriation exceeds the indexed amount — US$206,000 for 2025, adjusted annually. Confirm the figure for the year at issue.
Certification
A person is covered if they cannot certify five years of U.S. tax compliance on Form 8854. This is often the practical blocker even when the dollar tests are not met.
Use the current Instructions for Form 8854 for the year at issue, because the income tax test and the exclusion amount are adjusted annually.
Exit tax mechanics
For covered expatriates, the exit tax can apply a mark-to-market regime as if property were sold the day before expatriation. The net gain is then reduced by a statutory exclusion — US$890,000 for 2025, adjusted annually — before tax applies. Deferred compensation, tax-deferred accounts and interests in certain trusts have separate treatment and are not all inside the mark-to-market calculation.
The planning file should include a balance sheet, asset basis, valuation support, currency history, retirement accounts, trusts, companies, PFICs, CFCs, crypto, real estate and debt. A clean immigration event does not fix a missing tax valuation.
Planning sequence
The order matters. First, confirm citizenship or green card facts. Second, clean up five years of federal tax compliance. Third, model covered-expatriate status and exit tax. Fourth, restructure only where lawful and defensible before the expatriation date. Fifth, coordinate the nationality or green card termination process. Sixth, file the final-year return and Form 8854 correctly.
A person considering expatriation should also evaluate future U.S. gifts and bequests, U.S. beneficiaries, U.S. investments, immigration access, banking and estate planning. Tax is only one part of the decision.
Checklist
- Confirm whether the person is a U.S. citizen or long-term green card holder.
- Reconstruct five years of U.S. tax filings and payments.
- Identify missing FBAR, Form 8938, CFC, PFIC, trust and entity forms.
- Prepare a current worldwide balance sheet with basis and valuation support.
- Model covered-expatriate status against all three tests before the legal expatriation event.
- Review trusts, retirement accounts, deferred compensation and company ownership.
- Coordinate U.S. tax counsel, immigration counsel and local advisors.
- Calendar the final return, Form 8854 and post-expatriation filing obligations.
Common mistakes
- Renouncing first and asking tax questions later.
- Ignoring long-term green card holder rules.
- Failing the five-year certification test because old filings were incomplete.
- Valuing private companies, crypto or trusts after the event without support.
- Forgetting PFIC, CFC, FBAR, Form 8938 or Form 3520 cleanup.
- Treating expatriation as a family-wide solution when only one person changes status.
Advisor trigger
Use a U.S. tax attorney before booking a consular appointment, filing green card abandonment, taking a treaty nonresident position, moving assets, transferring shares, changing trusts or making large gifts.
Q&A
Who is a covered expatriate
A covered expatriate is generally someone who meets any one of three tests on expatriation: net worth of US$2,000,000 or more, average annual net income tax above the indexed amount (US$206,000 for 2025), or inability to certify five years of U.S. tax compliance on Form 8854. Meeting any single test is enough.
Does abandoning a green card trigger the exit tax
It can. The regime reaches long-term residents — generally a green card holder who was a lawful permanent resident in at least 8 of the last 15 tax years. Abandoning the card ends immigration status, but covered-expatriate testing, Form 8854 and any exit tax still apply.
How is the exit tax calculated
For covered expatriates, property is generally treated as sold at fair market value the day before expatriation. The resulting net gain is reduced by a statutory exclusion — US$890,000 for 2025, adjusted annually — and the remainder is taxed. Deferred compensation, tax-deferred accounts and certain trust interests follow separate rules.
Are the dollar thresholds fixed
The net worth test is fixed by statute at US$2,000,000. The average income tax test and the mark-to-market exclusion are indexed for inflation and change each year, so the figure for the actual expatriation year must be taken from the current Form 8854 instructions.
What is the five-year certification test
On Form 8854 the expatriate certifies compliance with U.S. federal tax obligations for the five tax years before expatriation. A person who cannot truthfully certify becomes a covered expatriate regardless of net worth or income, which is why cleanup of old filings should come before the expatriation date.
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