US Exit Tax: What Covered Expatriates Actually Owe

Most Americans who leave the United States and stop filing as US residents never owe a dollar of exit tax. But one missed FBAR, one unfiled return, or a net worth that crossed $2 million means the IRS treats you as a "covered expatriate" — and at that point, a deemed sale of your entire worldwide portfolio happens on paper, whether or not you sold a single share. The US Exit Tax under IRC Section 877A is one of the few tax regimes in the world that taxes unrealized gains at the moment you leave the country. Understanding who it hits — and how to minimize it before that date arrives — is the whole game.

This guide covers the covered expatriate tests, the mark-to-market calculation with real numbers, retirement account traps, the dual citizen exception, and the planning moves that actually matter. If you are still building toward an exit or considering the FEIE vs. foreign tax credit decision as a current expat, this article gives you the framework you need well before any irrevocable steps.

The Three Tests That Determine Your Status

The IRS classifies a departing American (or long-term green card holder) as a "covered expatriate" if they meet any one of three tests. All three apply on the date of expatriation.

Test	2024 Threshold	2025 Threshold	Inflation Adjusted?
Average annual net income tax (5-year)	$201,000	$206,000	Yes, annually
Net worth on expatriation date	$2,000,000	$2,000,000	No (fixed since 2008)
Failure to certify 5-year tax compliance (Form 8854)	Automatic covered status	Automatic covered status	N/A

Test 1: Five-Year Average Tax Liability

The IRS averages your net income tax liability — not gross income — across the five tax years immediately before your expatriation year. In 2025 that threshold is $206,000. A surgeon earning $400K per year almost certainly qualifies. A consultant who averaged $120K/year does not — unless a stock sale or business exit spikes one year's liability and pulls the average over the line.

Test 2: Net Worth of $2 Million or More

This is a one-day snapshot. On the date you formally renounce or surrender your green card, the IRS values your worldwide assets at fair market value and subtracts liabilities. Real estate, retirement accounts, business interests, vehicles, foreign investment accounts — everything counts. The $2 million figure has never been adjusted for inflation since the HEART Act created it in 2008, so it catches an increasing share of middle-class expats as asset values rise.

Test 3: Failure to Certify 5-Year Compliance

This is the trap that catches people with no significant wealth. When you file Form 8854, you must certify under penalty of perjury that you complied with all US federal tax obligations for the five preceding tax years — income returns, gift returns, FBAR filings (FinCEN 114), Form 8938 (FATCA), and any other required information returns. One missed FBAR filing on a foreign account — even a dormant account, even one with no income — automatically converts you into a covered expatriate regardless of your income or net worth.

How the Mark-to-Market Tax Actually Works

If you are a covered expatriate, Section 877A treats every asset you own worldwide as if you sold it at fair market value on the day before your expatriation date. The resulting gains are includible in your taxable income for the year of expatriation, and you pay tax on them even though no actual sale occurred.

The saving grace is the exclusion amount: $866,000 for 2024 expatriations and $890,000 for 2025 expatriations, adjusted annually for inflation. This exclusion is applied once per covered expatriate, pro-rata across all appreciated assets.

The Math: Three Scenarios

Losses from depreciated assets offset gains in the same calculation. If you hold an underwater rental property alongside appreciated equities, the loss reduces your net mark-to-market gain before the exclusion is applied.

Note that the mark-to-market gain is taxed at long-term capital gains rates (0%, 15%, or 20% depending on income bracket) plus the 3.8% Net Investment Income Tax if applicable — not at ordinary income rates. This is more favorable than most people assume.

Retirement Account Traps: IRAs Are Deemed Distributed

The mark-to-market regime does not apply to retirement accounts. Instead, covered expatriates with IRAs, 401(k)s, 529 plans, HSAs, and Coverdell education savings accounts are treated as having received a full taxable distribution of the entire balance on the day before expatriation. The money stays in the account, but the IRS taxes it as if you withdrew it all at once.

• Traditional IRA: Full pre-tax balance included in ordinary income for the year of expatriation. A $600,000 IRA adds $600,000 to your taxable income — at ordinary income rates, not capital gains rates.
• Roth IRA: Not subject to deemed distribution rules. This is one reason Roth conversions in the years before expatriation can be a significant planning tool.
• 401(k)/pension plans: Generally treated as "eligible deferred compensation" if the employer is a US person and you file the required waiver. The employer withholds 30% from future actual payments rather than triggering an immediate deemed distribution.
• Foreign pension plans: Complex. May be treated as ineligible deferred compensation — meaning you are taxed on the present value of the entire accrued benefit on your expatriation date.

For a detailed breakdown of how these accounts interact with US expat rules, see our guide to expat 401(k) and IRA planning.

The Dual Citizen Exception: Accidental Americans

There is a significant carve-out in Section 877A for people who were US citizens at birth because of where they happened to be born — not because they actively chose US citizenship or built US financial ties. To qualify for the dual citizen exception, all four conditions must be met on the expatriation date:

1. You became a citizen of both the US and another country at birth (not through naturalization).
2. You remain a citizen of and are taxed as a resident of that other country.
3. You were a US resident for no more than 10 years in the prior 15-tax-year period.
4. You certify five-year tax compliance on Form 8854.

If you qualify, the mark-to-market regime does not apply — you are not a covered expatriate even if your net worth exceeds $2 million. For a person born in Dublin to a US-citizen parent who moved back to Ireland at age 12, owns €3 million in Irish property, and spent only 7 years in the US during childhood, the difference between qualifying for this exception and not qualifying could be $400,000 or more in avoided tax.

The fourth condition — certifying compliance — trips up the most "accidental Americans." Many were unaware of their US filing obligations. The IRS Relief Procedures for Certain Former Citizens offer a path to compliance for low-income qualifying individuals (net worth below $2M, total tax owed $25,000 or less, non-willful failure).

Green Card Holders and the 8-Year Rule

Green card holders are subject to Section 877A only if they qualify as "long-term residents" — meaning they held lawful permanent resident status in at least 8 of the last 15 tax years. A tax year counts if you held LPR status for any part of that calendar year.

Years Held Green Card	LPR Tax Years Count	Exit Tax Exposure
1–7 years	Below the 8-year threshold	No Section 877A exit tax. File final return, no Form 8854 required.
8+ years	Long-term resident	Subject to all three covered expatriate tests and Form 8854.
Years under tax treaty as foreign resident	Excluded from count if you did not waive treaty benefits	Can reduce total years counted toward the 8-year threshold.

The abandonment date for green card holders is when USCIS receives Form I-407 (Abandonment of Lawful Permanent Resident Status). Mark-to-market values are determined as of the day before that date. One practical consequence: a green card holder who obtained their card in early 2018 could abandon status before December 31, 2025, and count only 7 LPR tax years — staying below the 8-year threshold. Waiting until 2026 pushes the count to 8 and triggers full Section 877A exposure.

Pre-Expatriation Planning: What to Do 18–24 Months Out

The most expensive exit tax mistakes are made by people who start planning 30 days before they renounce. The tax reduction levers require time — typically at least two full tax years of maneuvering room.

Step 1: Audit Your Compliance History First

Before any asset or income planning, run a full five-year compliance audit. Missing FBARs, un-filed Form 3520s (foreign gifts and trusts), or un-filed Form 5471s (controlled foreign corporations) must be corrected before expatriation. The IRS Streamlined Procedures allow retroactive compliance without the harshest penalties for non-willful failures.

1. Pull your IRS transcript for each of the last five tax years.
2. Identify every foreign financial account with a year-end balance exceeding $10,000 (FBAR threshold).
3. Confirm Form 8938 FATCA thresholds were met and filed.
4. Confirm any foreign corporation interests were properly reported on Form 5471.
5. Engage a CPA or tax attorney specializing in expatriation before the deadline — not after.

Step 2: Reduce Taxable Gains and Net Worth

• Harvest losses: Sell depreciated assets before expatriation to generate recognized losses that offset mark-to-market gains.
• Roth conversions: Spread IRA-to-Roth conversions across 2–3 years to move retirement assets into a structure excluded from deemed distribution rules. Pay income tax now at known rates rather than triggering a lump-sum ordinary income event on expatriation day.
• Charitable giving: Donate appreciated assets to a US charity before expatriation to both reduce net worth (toward the $2M threshold) and generate a charitable deduction.
• Pay down liabilities: Net worth is assets minus liabilities. Paying down a mortgage or business debt directly reduces the net worth test calculation.
• Empty specified accounts: For accounts you can access without large early-withdrawal penalties (HSAs, 529 plans), consider drawing them down before expatriation if the ordinary income triggered is less than the deemed distribution tax would be.

Step 3: Choose Your Expatriation Date Deliberately

Expatriating in January versus December of the same year can make a $50,000+ difference for someone near the income threshold. Because the test uses the average of five full prior tax years, you want to ensure no income spikes in those years. If you received a large bonus in November, waiting until January of the following year removes that year from the five-year lookback average eventually — but more immediately, it means your expatriation-year return captures less income, which can matter for certain deduction calculations.

Stock portfolio values also fluctuate. A market downturn in early January 2025 reduced many portfolios by 5–10% from December 2024 highs. For someone with $2.1M in assets, expatriating during that dip meant falling under the $2M net worth threshold — a difference of potentially hundreds of thousands of dollars in exit tax.

Data note: thresholds for 2025 were checked in June 2026 against IRS Revenue Procedure 2025-32 and Form 8854 instructions. The 2026 threshold for average annual net income tax is expected to be approximately $211,000; confirm against the IRS inflation-adjustment release for the applicable year.

Form 8854: The Filing You Cannot Skip

Form 8854 (Initial and Annual Expatriation Statement) is filed as an attachment to your Form 1040 or 1040-NR for the year your expatriation date falls. It is due by the standard filing deadline — April 15 of the year following expatriation, or June 15 for qualifying overseas filers.

The penalty for failure to file Form 8854 when required is $10,000 per year the form is missing or materially incomplete. The IRS can continue assessing this penalty in subsequent years if the form is never filed — and in the absence of a filed form, the IRS treats you as a US taxpayer indefinitely, potentially requiring you to continue filing US tax returns and FBAR long after you intended to be done.

What Form 8854 Requires

• Covered expatriate determination (all three tests answered with supporting documentation)
• Fair market value and adjusted basis for every asset subject to mark-to-market, if covered
• Exclusion amount allocation across appreciated assets
• Signed certification of five-year federal tax compliance
• Separate waiver statements for each eligible deferred compensation plan
• Deemed distribution calculations for each specified tax-deferred account

The Deferral Election: One Option for Illiquid Assets

If you own illiquid assets — private business interests, real estate, partnership interests — and the mark-to-market tax would force a cash payment on gains you cannot realize without selling, Section 877A allows a deferral election on an asset-by-asset basis. You defer the exit tax on that asset until you actually sell it, in exchange for posting adequate security (typically a bond or letter of credit acceptable to the IRS) and irrevocably waiving any treaty rights that might interfere with IRS collection. The election is made on Form 8854.

Deferral is useful for business owners who plan to sell within a few years. It is not a permanent escape — the tax comes due when the asset is sold, and interest accrues from the expatriation date.

State-Level Sourcing: California and New York

No US state has enacted an exit tax as of June 2026. California's proposed AB 259 (a wealth tax with a 10-year reach-back) died in committee in 2023, and the 2026 Billionaire Tax Act initiative has not been enacted. However, both California and New York use aggressive income-sourcing rules that can extend their tax jurisdiction for years after you move:

• California: Taxes income attributable to California work or sources, even if paid or received after you become a non-resident. RSUs earned while a California employee, real estate gains on California property, and business income from California operations remain taxable by California regardless of where you live when received.
• New York: Uses a look-back rule on deferred compensation and bonuses attributable to work performed while a New York resident. If you earned a deferred bonus package while working in New York and receive it two years later from your home in Panama, New York may claim the portion earned during residency.

Plan your residency departure from high-tax states as a separate exercise from federal expatriation planning — the state clock often starts earlier, and some states (California especially) aggressively audit departing high-income residents. For a broader look at how US-based banking access works when you stop being a US resident, see our expat brokerage account guide and the US expat banking and taxes guide.

Conclusion

The US Exit Tax is a compliance trap more than a wealth trap for most expats. The majority of Americans who leave and formally terminate their status owe nothing — they pass all three tests comfortably, certify compliance cleanly, and file Form 8854 without incident. The danger lies in the third test: one unfiled FBAR, one missing foreign account return, one overlooked information filing, and you are automatically a covered expatriate with mark-to-market exposure on every asset you own worldwide.

Start the compliance audit 18–24 months before any intended expatriation date. Understand where your net worth sits relative to the $2 million threshold. Model the Roth conversion math on your traditional IRA balance before that balance becomes a deemed distribution. And if you qualify for the dual citizen exception, verify it carefully — it can eliminate six-figure tax exposure with nothing more than proper documentation.

Sources checked (June 2026): IRS Expatriation Tax overview; Instructions for Form 8854 (2025); FinCEN FBAR reporting; IRS Relief Procedures for Certain Former Citizens.

Disclaimer: This article is for informational purposes only and does not constitute legal or tax advice. Tax rules change and individual circumstances vary significantly. Consult a qualified CPA or tax attorney specializing in US expatriation before making any decisions about renouncing citizenship or abandoning permanent resident status.