US Exit Tax: What Triggers It and What You'll Owe

If your net worth crosses $2 million on the day you hand back your US passport or formally abandon your green card, the IRS treats every appreciated asset you own as if it were sold the day before you left — and sends you the capital-gains bill. That is the US exit tax in plain terms, and in 2026 it catches more Americans abroad than most expect. The inflation-adjusted exclusion is $910,000, which sounds generous until you add up a house, a retirement account, and a brokerage portfolio built over two decades. This guide walks through who triggers the tax, how the math works, and what planning levers exist before you file your last US return.

Before diving in: the exit tax is entirely separate from tools like the Foreign Earned Income Exclusion that reduce your bill while you remain inside the US tax system. Those strategies help you live abroad without owing much. The exit tax is what happens when you formally leave the system altogether — by renouncing citizenship or surrendering a long-term green card. The IRS does not let you live abroad indefinitely and quietly opt out of worldwide taxation; formal legal steps are required, and the exit tax is the price of closing that chapter.

What Is the US Exit Tax?

The exit tax — formally called the "expatriation tax" — sits inside IRC Sections 877 and 877A. Congress rewrote the rules with the 2008 HEART Act, replacing a subjective "intent to avoid tax" standard with an objective three-part test still in use today. If you pass any one of the three thresholds on your expatriation date, you are a "covered expatriate" and the exit tax regime applies to you.

Two groups face these rules: US citizens who formally renounce at a US embassy or consulate, and long-term residents — defined as lawful permanent residents who held green card status in at least 8 of the last 15 tax years ending with the year they terminate US residency. Both groups must file Form 8854 and may owe the exit tax.

Who Is a Covered Expatriate? The Three Tests

You are a covered expatriate if you meet any one of these conditions. Meeting all three is not required — a single hit is enough to trigger the full regime.

Test	2026 Threshold	What Counts
Net worth	$2,000,000 or more	Fair market value of all worldwide assets minus liabilities on the expatriation date. Includes home equity, brokerage accounts, IRAs, business interests, and foreign real estate.
Average annual net income tax liability	More than $211,000	Average US federal income tax actually paid for the 5 tax years immediately before the expatriation year. Indexed for inflation annually.
Tax compliance certification failure	Any wealth level	You must certify on Form 8854 that all US federal tax obligations — returns, FBAR, FATCA, gift tax — were met for the 5 preceding years. Failure to certify makes you a covered expatriate regardless of net worth.

Data note: the $211,000 income-tax-liability threshold and $910,000 mark-to-market exclusion are inflation-adjusted annually. The $2 million net worth threshold has not changed since 2008 — it is not indexed. All 2026 figures confirmed from IRS-sourced materials as of June 2026; verify current-year figures in the Form 8854 instructions before filing.

The third test is the one that most surprises people. A digital nomad with $300,000 in assets who missed a single FBAR filing or filed one year late can become a covered expatriate on purely procedural grounds — not because of wealth. Getting your compliance house in order before the five-year lookback window matters as much as managing your asset values.

How the Mark-to-Market Tax Is Calculated

Once you are classified as a covered expatriate, Section 877A applies a deemed-sale rule: every asset you own worldwide is treated as if sold at fair market value on the day before your expatriation date. Any resulting net gain above your cost basis is recognized and taxed in your final US return year at applicable capital gains rates — including the 3.8% Net Investment Income Tax (NIIT) for most covered expatriates.

The $910,000 Exclusion

Not all of that gain is immediately taxable. In 2026, the first $910,000 of net unrealized gain is excluded. This is a single lifetime exclusion applied against total net gain across all assets — it is not $910,000 per asset. Unrealized losses on some positions can offset unrealized gains on others before the exclusion is applied.

Note: the Section 121 primary residence exclusion ($250,000 for single filers, $500,000 for married) does not apply to the exit tax deemed sale. Home equity gains enter the calculation in full.

Special Rules for Retirement Accounts

Retirement accounts do not follow the standard mark-to-market regime. They each have distinct treatment, and the difference between account types is one of the biggest planning levers available before you leave.

Account Type	Exit Tax Treatment	Post-Expatriation Tax Rate
Traditional IRA	Entire balance deemed distributed as ordinary income on the day before expatriation. The $910k exclusion does not apply.	Ordinary income rates in the expatriation year
Roth IRA	Also classified as a "specified tax-deferred account" — entire balance deemed distributed as ordinary income, even though normal Roth distributions are tax-free.	Ordinary income rates in the expatriation year
401(k) / 403(b)	Classified as "eligible deferred compensation" — NOT taxed at expatriation. Future distributions are subject to 30% flat withholding with no treaty reduction available.	30% withholding on all future distributions
Foreign pension (non-US employer)	Treated as a "specified tax-deferred account" in many cases — deemed distributed. Depends on structure; professional review required.	Ordinary income or varies by treaty

The gap between IRA and 401(k) treatment creates a pre-expatriation planning opportunity. If your plan allows it, rolling IRA assets into an active employer 401(k) before you leave converts them from immediate ordinary income taxation (full IRA balance recognized in the expatriation year) to deferred 30% withholding on future distributions. For a $400,000 Traditional IRA at a 32% marginal rate, the immediate deemed distribution costs $128,000 in the expatriation year; the 30% withholding on the same balance taken as distributions over 15 years looks very different in present-value terms.

Green Card Holders and the 8-Year Rule

Many green card holders are surprised to learn they face the same exit-tax rules as US citizens — if they have held LPR status in at least 8 of the last 15 tax years. This is the "long-term resident" definition, and it is easy to cross without realizing it.

If you received your green card in 2015 and are now considering surrendering it in 2026 or later, you have already crossed the 8-year threshold. Surrendering the card through Form I-407 at a US consulate — or having it judicially revoked — constitutes "termination of residency" and starts the exit-tax clock. The same three covered-expatriate tests apply, with the same 2026 thresholds.

Treaty tie-breaker elections — where a dual-status person elects to be taxed as a foreign resident under a US income tax treaty — do not reset the 8-year count or avoid the exit tax. The IRS counts whether you held LPR status each year, not how you filed. For a comprehensive look at banking and tax setup while managing residency changes, the US expat banking and taxes guide covers the overlapping compliance obligations in more detail.

Form 8854: The Filing That Closes the Book

Form 8854 — "Initial and Annual Expatriation Statement" — formally severs your connection to the US tax system. It is not optional, and the penalty for failing to file, filing incompletely, or filing with incorrect information is $10,000 per year.

You attach Form 8854 to your final-year US income tax return — Form 1040 or Form 1040-NR for the year that includes your expatriation date. The form does three things:

1. Certifies your 5-year compliance history — returns, FBAR (FinCEN Form 114), Form 8938 (FATCA), gift tax returns, and any other required filings
2. Determines covered expatriate status — by calculating net worth and 5-year average income tax liability
3. Calculates the exit tax liability — mark-to-market gain minus the $910,000 exclusion, plus retirement account and deferred compensation treatment

If you hold illiquid assets — closely held business interests, real estate in foreign jurisdictions, unvested equity — and cannot pay the exit tax immediately, you can make a deferral election on Form 8854. But you must provide adequate security to the IRS (typically a bond or letter of credit), and the deferred amount accrues interest at the federal underpayment rate.

Annual Form 8854 After Expatriation

Most former citizens only file Form 8854 once. However, if you have a beneficial interest in a nongrantor trust that continues to generate US-source income after expatriation, you may need to file the annual version of the form for as long as that trust interest exists. Covered expatriates who made deferral elections also have ongoing filing obligations until the deferred tax is paid.

How to Reduce Exit Tax Exposure Before You Leave

The exit tax is assessed on unrealized gains that exist at the moment of expatriation. Assets with high cost bases, assets already sold before the exit date, and assets below threshold produce lower or zero exit tax. These strategies require lead time — some need years, not months.

• Roth conversions before expatriation. Converting a Traditional IRA to a Roth IRA while you are still a US resident eliminates the deemed-distribution tax on that account at expatriation. You pay ordinary income tax on the conversion now, but qualified Roth distributions after expatriation are generally not subject to the 30% withholding regime. For large IRA balances, this conversion math often favors paying a known rate now over permanent 30% withholding later.
• Basis reset through early realized gains. Selling and repurchasing appreciated positions while you are still a US resident (especially in a lower-income year where LTCG rates are 0% or 15%) resets cost basis at current market value. Those positions then enter the deemed-sale calculation with little or no unrealized gain.
• Gifting to non-US persons before exit. Gifts to non-US-citizen spouses (up to $190,000 per year as of 2026) or to foreign individuals (up to $19,000 per year per recipient under the standard annual exclusion) reduce your worldwide net worth before the exit date. Section 2801 — the 40% tax on gifts from covered expatriates to US recipients — only applies after you are a covered expatriate. Gifts made while still a citizen or resident are governed by ordinary gift tax rules.
• Time your exit date strategically. Your expatriation date determines which year's thresholds apply and which assets and liabilities are on the books. In a year where a major asset has temporarily declined in value, or where you have harvested losses, expatriating before values recover can materially reduce the mark-to-market gain.
• Reduce net worth below $2 million. If you are near the threshold, legitimate use of the annual gift exclusion, charitable giving, and principal paydown can bring net worth under the trigger level. This must happen before the expatriation date — not after.

For investors managing international brokerage accounts, PFIC positions, and foreign-held assets, the PFIC and expat investing guide covers how foreign funds are taxed for US persons — relevant both while you remain in the system and as part of the broader exit plan.

The Relief Procedure for Accidental Americans

A narrow path exists for former US citizens who genuinely did not know they were US citizens, had minimal US tax exposure, and whose past filing failures were non-willful. The IRS Relief Procedures for Certain Former Citizens allow this group to exit the US tax system without being classified as covered expatriates and without owing taxes or penalties for prior unfiled years — if they meet all of the following:

• Net worth under $2 million at both the time of expatriation and the time of making the submission
• Aggregate US tax liability of $25,000 or less for the 5 years before expatriation plus the expatriation year
• Failure to file was non-willful — not deliberate tax avoidance
• No prior US tax filing history as a US citizen (or filed only as a nonresident)

This program is specifically designed for people who grew up abroad, held dual citizenship unknowingly, and never received the standard IRS notices that accompany living in the United States. It is not available to people who filed US taxes as residents and then stopped. The State Department CLN (Certificate of Loss of Nationality) processing fee is currently $450 — reduced from $2,350 effective April 2026 — and applies to all renunciants separately from IRS procedures.

Section 2801: The 40% Tax on US Heirs

Becoming a covered expatriate does not end your family's US tax exposure. Under IRC Section 2801 — IRS final regulations effective January 1, 2025 — any US citizen or resident who receives a gift or bequest from a covered expatriate owes a 40% transfer tax on the taxable amount above the annual exclusion. The US recipient pays this tax, not the covered expatriate donor.

The annual exclusion for 2026 is $19,000 per donor per recipient. Bequests at death from a covered expatriate are also covered — the US-citizen heir owes 40% on amounts above the exclusion, reported on Form 708.

Gift or Bequest Amount	Section 2801 Tax (at 40%)	Net Received by US Heir
$50,000	($50,000 − $19,000) × 40% = $12,400	$37,600
$500,000	($500,000 − $19,000) × 40% = $192,400	$307,600
$1,000,000	($1,000,000 − $19,000) × 40% = $392,400	$607,600

Covered expatriate parents with US-citizen children need to factor this tax into estate planning. Gifts to non-US persons are not subject to Section 2801, so the structure of your estate — and the citizenship of your beneficiaries — matters significantly after expatriation.

Pre-Expatriation Planning Checklist

1. Confirm your 5-year US filing history is complete: income tax returns, FBAR (FinCEN 114), Form 8938 (FATCA), and any gift tax returns
2. Calculate current worldwide net worth including all assets and liabilities at fair market value
3. Determine whether the 8-of-15 green card rule applies if you hold LPR status
4. Calculate your 5-year average annual net income tax liability from IRS transcripts
5. Identify all unrealized gains and losses across brokerage, real estate, business interests, and retirement accounts
6. Model the mark-to-market calculation with the $910,000 exclusion applied
7. Evaluate Roth conversion opportunities on Traditional IRA balances
8. Evaluate basis-reset opportunities for highly appreciated securities in low-income years
9. Consult a US international tax attorney on deferral elections for illiquid assets
10. Choose the expatriation date with the relevant year's thresholds and asset values in mind
11. File Form 8854 attached to your final-year US return by the deadline (April 15 with extensions to October 15)
12. Confirm no further US tax filing obligations remain after expatriation

What Could Change

The $2 million net worth threshold has not changed since 2008 and has no inflation adjustment mechanism. Legislative proposals to raise or index it have not advanced as of June 2026. The income-tax-liability threshold and the mark-to-market exclusion continue to adjust annually. Tax treaties with specific countries can affect how certain income items are taxed after expatriation, but they do not eliminate or reduce the exit tax itself for covered expatriates under current US law — you must irrevocably waive treaty protection on specified tax-deferred accounts when filing Form 8854.

Sources and Data Notes

Sources checked June 2026: IRS.gov/individuals/international-taxpayers/expatriation-tax; IRS Instructions for Form 8854 (2025 version); IRS Relief Procedures for Certain Former Citizens; IRC §§ 877, 877A, 2801; IRS Notice 2009-85 (deferred compensation and retirement plan rules). Thresholds ($211,000 income test, $910,000 mark-to-market exclusion) reflect 2026 IRS figures. The $2 million net worth threshold has not changed since the HEART Act (2008).

• IRS: Expatriation Tax
• IRS: Instructions for Form 8854 (2025)
• IRS: Relief Procedures for Certain Former Citizens

Conclusion

The US exit tax is not exclusively a wealthy-person problem. The certification failure test means any expat with gaps in their filing history — missed FBAR, unfiled return, incomplete FATCA disclosure — faces covered expatriate status regardless of net worth. The mark-to-market calculation, the deemed-distribution rules for IRAs, the 30% withholding on 401(k) distributions, and the Section 2801 shadow on US-citizen heirs create interlocking obligations that demand multi-year advance planning.

The practical bottom line: clean your compliance record well before the five-year window begins, track cost basis on every asset from day one, consider Roth conversions on large IRA balances while your US income still qualifies for favorable rates, and work with a qualified US international tax professional to file Form 8854 correctly. A $10,000 annual penalty for a missing form is entirely avoidable. The exit tax itself — once your assets are above threshold — generally is not, but its magnitude depends heavily on how much planning you completed before that final expatriation date.

Disclaimer: this article is for educational purposes only and does not constitute legal or tax advice. Tax rules change, and individual circumstances vary significantly. Consult a qualified US international tax attorney or CPA before making any expatriation or tax-planning decision.